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Note: This page contains sample records for the topic "rock lithology geochemistry" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


1

Property:CapRockLithology | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformationInyo County,InformationInformation PelletsParticipant JumpCapRockLithology Jump

2

Sedimentary basin geochemistry and fluid/rock interactions workshop  

SciTech Connect (OSTI)

Fundamental research related to organic geochemistry, fluid-rock interactions, and the processes by which fluids migrate through basins has long been a part of the U.S. Department of Energy Geosciences program. Objectives of this program were to emphasize those principles and processes which would be applicable to a wide range of problems associated with petroleum discovery, occurrence and extraction, waste disposal of all kinds, and environmental management. To gain a better understanding of the progress being made in understanding basinal fluids, their geochemistry and movement, and related research, and to enhance communication and interaction between principal investigators and DOE and other Federal program managers interested in this topic, this workshop was organized by the School of Geology and Geophysics and held in Norman, Oklahoma in November, 1991.

NONE

1991-12-31T23:59:59.000Z

3

Organic Geochemistry of the CenomanianTuronian Bahloul Formation Petroleum Source Rock, Central and Northern Tunisia  

E-Print Network [OSTI]

1 Organic Geochemistry of the Cenomanian­Turonian Bahloul Formation Petroleum Source Rock, Central and around diapirs of the Triassic salt. Key words: Organic matter, Petroleum Source Rock, Cenomanian (TOC) determination, Rock-Eval pyrolysis, extractable organic matter content (EOM) fractionation

Paris-Sud XI, Université de

4

RoBOT: "Rocks Beneath Our Toes" An experiential learning opportunity in mineralogy and geochemistry  

E-Print Network [OSTI]

RoBOT: "Rocks Beneath Our Toes" An experiential learning opportunity in mineralogy with Boston University undergraduates to analyze the mineralogy and unravel the unique story that each rock into modern scientific methods of geochemistry and mineralogy and to unlock for them the exciting

Baxter, Ethan F.

5

RADIOACTIVITY DOSAGE OF ORNAMENTAL GRANITIC ROCKS BASED ON CHEMICAL, MINERALOGICAL AND LITHOLOGICAL DATA  

SciTech Connect (OSTI)

One hundred samples of granitic rock were collected from granite traders in Belo Horizonte. Autoradiography, optical microscopy, diffractometry, and chemical analysis (X-ray spectrometry, X-ray fluorescence, neutron activation, gravimetry and electron probe microanalysis) were used to determine the mineral assemblages and lithotypes. Autoradiographic results for several samples showed the presence of monazite, allanite and zircon. Chemical analysis revealed concentrations of uranium of {le} 30ppm, and thorium {le} 130ppm. Higher concentrations generally correlated with high concentrations of light rare earths in silica-rich rocks of granitic composition. Calculations were made of radioactive doses for floor tiles in a standard room for samples with total concentration of uranium and thorium greater than 60ppm. On the basis of calculations of {sup 232}Th, {sup 40}K and {sup 226}Ra from Th, K and U analysis, the doses calculated were between 0.11 and 0.34 mSv/year, which are much lower than the acceptable international exposure standard of 1.0 mSv/year.

Salas, H.T.; Nalini, H.A. Jr.; Mendes, J.C.

2004-10-03T23:59:59.000Z

6

The ratios of dibenzothiophene to phenanthrene and pristane to phytane as indicators of depositional environment and lithology of petroleum source rocks  

SciTech Connect (OSTI)

The ratio of dibenzothiophene to phenanthrene and the ratio of pristane to phytane, when coupled together, provide a novel and convenient way to infer crude oil source rock depositional environments and lithologies. Such knowledge can significantly assist in identifying the source formation(s) in a basin thereby providing valuable guidance for further exploration. The ability to infer this information from analysis of a crude oil is especially valuable as frequently the earliest samples in a new area may be shows and/or drill stem test samples from exploratory wells which are characteristically drilled on structural highs stratigraphically remote from the source formation(s). A cross-plot of dibenzothiophene/phenanthrene versus the pristane/phytane ratios measured on seventy-five crude oils from forty-one known source rocks ranging in age from Ordovician to Miocene consistently classified the oils into the following environment/lithology groups: marine carbonate; marine carbonate/mixed and lacustrine sulfate-rich; lacustrine sulfate-poor; marine and lacustrine shale; and fluvial/deltaic carbonaceous shale and coal. The dibenzothiophene to phenanthrene and the pristane to phytane ratios can also be used to classify source rock paleodepositional environments. The classification scheme is based on the premise that these ratios reflect the different Eh-pH regimes resulting from the significant microbiological and chemical processes occurring during deposition and early diagenesis of sediments. The dibenzothiophene/phenanthrene ratio assesses the availability of reduced sulfur for incorporation into organic matter and the pristane/phytane ratio assesses the redox conditions within the depositional environment. Interpretation of these ratios has been aided by quantitative biomarker analysis and by carbon isotope data for pristane and phytane obtained by gas chromatography-isotope ratio mass spectrometry.

Hughes, W.B. [ARCO International Oil and Gas Company, Plano, TX (United States)] [ARCO International Oil and Gas Company, Plano, TX (United States); Holba, A.G.; Dzou, L.I.P. [ARCO Exploration and Production Technology, Plano, TX (United States)] [ARCO Exploration and Production Technology, Plano, TX (United States)

1995-09-01T23:59:59.000Z

7

Helium and lead isotope geochemistry of oceanic volcanic rocks from the East Pacific and South Atlantic  

E-Print Network [OSTI]

The isotopic evolution of helium and lead in the Earth is coupled by virtue of their common radioactive parents uranium and thorium. The isotopic signatures in oceanic volcanic rocks provide constraints on the temporal ...

Graham, David W. (David William)

1987-01-01T23:59:59.000Z

8

The geochemistry and petrogenesis of the Tertiary igneous rocks of the Eagle Mountains, Van Horn, Texas  

E-Print Network [OSTI]

Alkaline Ign ~ ~ cons ~ ~ ~ Rocks 21 42 D I S CUSS I QN e ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ Petrogenesis 50 50 Source magma. Fractionation . ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 50 52 Origin of West Texas Nagmas... of Permian and Cretaceous age. The only Permian rocks in the area are represented by the Hueco Limestone Formation. The Cretaceous System, however, is represented by the entire Comanche and Gulf Series (Fig. 2). The Hueco Formation is of marine origin...

Nelson, Ronald Alan

1972-01-01T23:59:59.000Z

9

Organic geochemistry and correlation of Paleozoic source rocks and Trenton crude oils, Indiana  

SciTech Connect (OSTI)

Shale samples from four cores of the New Albany and Antrim Shales (Devonian) and from six cores of the Maquoketa Group (Ordovician), representing a broad geographic area of Indiana, have been analyzed for total organic carbon, total sulfur, pyrolysis yield (Rock-Eval), bitumen content, and illite crystallinity data. These data indicate that the New Albany, Antrim, and Maquoketa shales contain a sufficient quantity and quality of organic matter to be good petroleum source rocks. Bitumen ratios, Rock-Eval yields, gas chromatography of saturated hydrocarbons, and illite crystallinity data show that the Maquoketa shales have reached a higher level of thermal maturity than the New Albany and Antrim shales. The level of thermal maturity of the Maquoketa shales suggested a maximum burial depth considerably greater than the present depth.

Guthrie, J. (Indiana Geological Survey, Bloomington (USA))

1989-08-01T23:59:59.000Z

10

Geochemistry of volcanic rocks from the Geysers geothermal area, California Coast Ranges  

E-Print Network [OSTI]

source of geothermal energy, is ulti- 0024-4937/$ - see front matter D 2005 Published by Elsevier BGeochemistry of volcanic rocks from the Geysers geothermal area, California Coast Ranges Axel K Potsdam, Germany c Philippine Geothermal, Inc., Makati, Philippines Received 1 May 2004; accepted 25 May

11

Geochemistry of selected oils and rocks from the central portion of the West Siberian basin, Russia  

SciTech Connect (OSTI)

Six analyzed oils, produced from Middle jurassic to Upper Cretaceous strata in the Middle Ob region of the West Siberian basin, show biomarker and stable carbon isotope compositions indicating an origin from the Upper Jurassic Bazhenov Formation. The chemical compositions of these oils are representative of more than 85% of the reserves in West Siberia (Kontorovich et al., 1975). Bazhenov-sourced oil in Cenomanian strata in the Van-Egan field underwent biodegradation in the reservoir, resulting in a low API gravity, an altered homohopane distribution, and the appearance of 25-norhopanes without alteration of the steranes. High API gravity oil from the Salym field has surpassed the peak of the oil window, consistent with abnormally high temperatures and pressures in the Bazhenov source rock from which it is produced. The remaining oils are very similar, including samples from Valanginian and Bathonian-Callovian intervals in a sequence of stacked reservoirs in the Fedorov field. Bazhenov rock samples from the study area contain abundant oil-prone, marine organic matter preserved under anoxic conditions. While the Upper Jurassic Vasyugan Formation shows lower oil-regenerative potential than the Bazhenov Formation, it cannot be excluded as a source rock because insufficient sample was available for biomarker analysis. Core from the Lower to Middle Jurassic Tyumen Formation in the YemYegov 15 well was compared with the oils because it is thermally mature and shows TOC and HI values, indicating slightly more favorable oil-generative characteristics than the average for the formation (2.75 wt. % for 270 samples; 95 mg HC/g TOC for 25 samples). The core contains terrigenous, gas-prone organic matter that shows no relationship with the analyzed oils. 59 refs., 15 figs., 8 tabs.

Peters, K.E.; Huizinga, B.J. (Chevron Overseas Petroleum Inc., San Ramon, CA (United States)); Kontorovich, A.Eh.; Andrusevich, V.E. (Inst. of Geology, Novosibirsk (Russian Federation)); Moldowan, J.M. (Chevron Petroleum Technology Co., Richmond, CA (United States)); Demaison, G.J. (Petroscience Inc., Walnut Creek, CA (United States)); Stasova, O.F. (NPO SIBGEO, Novosibirsk (Russian Federation))

1993-05-01T23:59:59.000Z

12

An International Journal of MINERALOGY, CRYSTALLOGRAPHY, GEOCHEMISTRY,  

E-Print Network [OSTI]

, developed from the weathering of alumosilicate-rich parent rocks. These residual deposits are mainly formedAn International Journal of MINERALOGY, CRYSTALLOGRAPHY, GEOCHEMISTRY, ORE DEPOSITS, PETROLOGY

Boni, Maria

13

Geochemistry of the Banded Iron Formations and their Host Rocks in the Eastern Desert of Egypt BACKUS, Ethan L.1, GAGNON, Kelli E.1, EL-SHAZLY, Aley K.1, and KHALIL, Khalil Isaac2  

E-Print Network [OSTI]

Geochemistry of the Banded Iron Formations and their Host Rocks in the Eastern Desert of Egypt University, Egypt Sponsored by NSF-OISE-1004021 Session 92:T3. Sigma Gamma Epsilon Undergraduate Research over 30,000 km2 in the central Eastern Desert of Egypt. The deposits most resemble Algoma-type iron

El-Shazly, Aley

14

geochemistry | EMSL  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

geochemistry geochemistry Leads No leads are available at this time. Magnesium behavior and structural defects in Mg+ ion implanted silicon carbide. Abstract: As a candidate...

15

Remedial Action Plan and Site Design for Stabilization of the Inactive Uranium Mill Tailings Sites at Slick Rock, Colorado: Appendix B to Attachment 3, Lithologic logs and monitor well construction information. Final report  

SciTech Connect (OSTI)

This volume contains lithology logs and monitor well construction information for: NC processing site; UC processing site; and Burro Canyon disposal site. This information pertains to the ground water hydrology investigations which is attachment 3 of this series of reports.

NONE

1995-09-01T23:59:59.000Z

16

EMSL - geochemistry  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

geochemistry en Diffusional Motion of Redox Centers in Carbonate Electrolytes . http:www.emsl.pnl.govemslwebpublicationsdiffusional-motion-redox-centers-carbonate-electrolytes...

17

Rocks  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassive Solar HomePromisingStories »SubmitterJ. NorbyN.Rocks Rocks Rocks have been

18

Lithologically Controlled | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to:46 - 429Lacey,(Monaster And Coolbaugh, 2007)isLithologically Controlled Jump to:

19

12.479 Trace-Element Geochemistry, Spring 2009  

E-Print Network [OSTI]

The emphasis of this course is to use Trace Element Geochemistry to understand the origin and evolution of igneous rocks. The approach is to discuss the parameters that control partitioning of trace elements between phases ...

Frey, Frederick

20

12.479 Trace-Element Geochemistry, Fall 2006  

E-Print Network [OSTI]

Focuses on element distribution in rocks and minerals using data obtained from natural and experimental systems. Emphasizes models describing trace-element partitioning and applications of trace-element geochemistry to ...

Frey, Frederick August

Note: This page contains sample records for the topic "rock lithology geochemistry" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Lithology and Alteration Mineralogy of Reservoir Rocks at Coso...  

Open Energy Info (EERE)

upwelling zone. The upwelling zone lies within a epidote-quartz veined, coarse-grained granite at depth in the southern portion of the field. The mineralogy of the clays varies...

22

Lithology and alteration mineralogy of reservoir rocks at Coso...  

Open Energy Info (EERE)

upwelling zone. The upwelling zone lies within a epidote-quartz veined, coarse-grained granite at depth in the southern portion of the field. The mineralogy of the clays varies...

23

Lithology and Alteration Mineralogy of Reservoir Rocks at Coso Geothermal  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformation Earth's Heat JumpInc Place:KeystoneSolarList ofPassiveMachineBalance

24

Lithology and alteration mineralogy of reservoir rocks at Coso Geothermal  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformation Earth's Heat JumpInc Place:KeystoneSolarList ofPassiveMachineBalanceArea, California |

25

Property:HostRockLithology | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revisionEnvReviewNonInvasiveExploration Jump to:FieldProceduresFY JumpThis is a property of typeHeatSource

26

Carbon geochemistry of serpentinites in the Lost City Hydrothermal System (30N, MAR)  

E-Print Network [OSTI]

Carbon geochemistry of serpentinites in the Lost City Hydrothermal System (30°N, MAR) Ade May 2008 Abstract The carbon geochemistry of serpentinized peridotites and gabbroic rocks recovered at the Lost City Hydrothermal Field (LCHF) and drilled at IODP Hole 1309D at the central dome of the Atlantis

Gilli, Adrian

27

DOE workshop: Sedimentary systems, aqueous and organic geochemistry  

SciTech Connect (OSTI)

A DOE workshop on sedimentary systems, aqueous and organic geochemistry was held July 15-16, 1993 at Lawrence Berkeley Laboratory. Papers were organized into several sections: Fundamental Properties, containing papers on the thermodynamics of brines, minerals and aqueous electrolyte solutions; Geochemical Transport, covering 3-D imaging of drill core samples, hydrothermal geochemistry, chemical interactions in hydrocarbon reservoirs, fluid flow model application, among others; Rock-Water Interactions, with presentations on stable isotope systematics of fluid/rock interaction, fluid flow and petotectonic evolution, grain boundary transport, sulfur incorporation, tracers in geologic reservoirs, geothermal controls on oil-reservoir evolution, and mineral hydrolysis kinetics; Organic Geochemistry covered new methods for constraining time of hydrocarbon migration, kinetic models of petroleum formation, mudstones in burial diagenesis, compound-specific carbon isotope analysis of petroleums, stability of natural gas, sulfur in sedimentary organic matter, organic geochemistry of deep ocean sediments, direct speciation of metal by optical spectroscopies; and lastly, Sedimentary Systems, covering sequence stratigraphy, seismic reflectors and diagenetic changes in carbonates, geochemistry and origin of regional dolomites, and evidence of large comet or asteroid impacts at extinction boundaries.

Not Available

1993-07-01T23:59:59.000Z

28

LITHOLOGY-FLUID INVERSION FROM PRESTACK SEISMIC DATA  

E-Print Network [OSTI]

LITHOLOGY-FLUID INVERSION FROM PRESTACK SEISMIC DATA MARIT ULVMOEN Department of Mathematical of the study is on lithology-fluid inversion from prestack seismic data in a 3D reservoir. The inversion relates the lithology-fluid classes to elastic variables and the seismic data, and it follows the lines

Eidsvik, Jo

29

Lithology-Fluid Inversion based on Prestack Seismic Data  

E-Print Network [OSTI]

Lithology-Fluid Inversion based on Prestack Seismic Data Marit Ulvmoen Summary The focus of the study is on lithology-fluid inversion from prestack seismic data. The target zone is a 3D reservoir model. The likelihood model relates the lithology-fluid classes to elastic variables and the seismic

Eidsvik, Jo

30

Comparative assessment of five potential sites for hydrothermal magma systems: geochemistry  

SciTech Connect (OSTI)

A brief discussion is given of the geochemical objectives and questions that must be addressed in such an evaluation. A summary of the currently published literature that is pertinent in answering these questions is presented for each of the five areas: The Geysers-Clear Lake region, Long Valley, Rio Grand Rift, Roosevelt Hot Springs, and the Salton Trough. The major geochemical processes associated with proposed hydrothermal sites are categorized into three groups for presentation: geochemistry of magma and associated volcanic rocks, geochemistry of hydrothermal solutions, and geochemistry of hydrothermal alteration. (MHR)

White, A.F.

1980-08-01T23:59:59.000Z

31

Core Lithology State of Hawail Scientific Observation Hole 2...  

Open Energy Info (EERE)

Volcano, Hawaii Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Core Lithology State of Hawail Scientific Observation Hole 2 Kilauea Volcano, Hawaii...

32

Core Lithology State of Hawaii Scientific Observation Hole 4...  

Open Energy Info (EERE)

Volcano, Hawaii Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Core Lithology State of Hawaii Scientific Observation Hole 4 Kilauea Volcano, Hawaii...

33

4Reviews in Mineralogy & Geochemistry Vol. 75 pp. 79-107, 2013  

E-Print Network [OSTI]

4Reviews in Mineralogy & Geochemistry Vol. 75 pp. 79-107, 2013 Copyright © Mineralogical Society of silicate minerals in igneous rocks (Bowen 1915, 1928), implies that Earth's crustal mineralogy has changed of the mineralogical record has led to a growing realization that varied physical, chemical, and biological processes

Downs, Robert T.

34

WHAT IS MEDICAL MINERALOGY AND GEOCHEMISTRY?  

E-Print Network [OSTI]

WHAT IS MEDICAL MINERALOGY AND GEOCHEMISTRY? The connection between human health of medical mineralogy and geochemistry (MMG) focuses on understanding the equilibria and reaction pathways phases with naturally occurring, inorganic solid phases within the human body. Medical mineralogy

Sahai, Nita

35

Summary of lithologic logging of new and existing boreholes at Yucca Mountain, Nevada, August 1993 to February 1994  

SciTech Connect (OSTI)

Yucca Mountain, Nevada, is being investigated as a potential site for a high-level radioactive waste repository. This report summarizes the lithologic logging of new and existing boreholes at Yucca Mountain that was done from August 1993 to February 1994 by the Rock Characteristics Section, Yucca Mountain Project Branch, US Geological Survey (USGS). Units encountered during logging include Quaternary-Tertiary alluvium/colluvium, Tertiary Rainier Mesa Tuff, all units in the Tertiary Paintbrush Group, Tertiary Calico Hills Formation and Tertiary Prow Pass Tuff. We present criteria used for recognition of stratigraphic contacts, logging results as tables of contact depths for core from neutron (UZN) boreholes and graphical lithologic logs for core from non-UZN boreholes, and descriptions of several distinctive nonwelded tuffs recognized in the PTn hydrogeologic unit of the Paintbrush Group.

Geslin, J.K.; Moyer, T.C.; Buesch, D.C.

1995-05-01T23:59:59.000Z

36

Intergrating Magnetotellurics, Soil Gas Geochemistry and Structural...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Intergrating Magnetotellurics, Soil Gas Geochemistry and Structural Analysis to Identify Hidden, High Enthalpy, Extensional Geothermal Systems Intergrating Magnetotellurics, Soil...

37

Overview of fundamental geochemistry basic research at the Oak Ridge National Laboratory  

SciTech Connect (OSTI)

Researchers in ORNL`s Geochemistry and High Temperature Aqueous Chemistry groups are conducting detailed experimental studies of physicochemical properties of the granite-melt-brine system; sorption of water on rocks from steam-dominated reservoirs; partitioning of salts and acid volatiles between brines and steam; effects of salinity on H and O isotope partitioning between brines, minerals, and steam; and aqueous geochemistry of Al. These studies contribute in many ways to cost reductions and improved efficiency in the discovery, characterization, and production of energy from geothermal resources.

Anovitz, L.M.; Benezeth, P.; Blencoe, J.G. [and others

1996-01-01T23:59:59.000Z

38

Soda Lake Well Lithology Data and Geologic Cross-Sections  

SciTech Connect (OSTI)

Comprehensive catalogue of drill?hole data in spreadsheet, shapefile, and Geosoft database formats. Includes XYZ locations of well heads, year drilled, type of well, operator, total depths, well path data (deviations), lithology logs, and temperature data. Plus, 13 cross?sections in Adobe Illustrator format.

Faulds, James E.

2013-12-31T23:59:59.000Z

39

The Role of Geochemistry and Stress on Fracture Development and...  

Broader source: Energy.gov (indexed) [DOE]

The Role of Geochemistry and Stress on Fracture Development and Proppant Behavior in EGS Reservoirs The Role of Geochemistry and Stress on Fracture Development and Proppant...

40

Rock Art  

E-Print Network [OSTI]

The archaeology of early Egypt: Social transformations inAlexander 1938 Rock-drawings of southern Upper Egypt. Vol.1. London: The Egypt Exploration Society. 1939 Rock-drawings

Huyge, Dirk

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rock lithology geochemistry" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Author's Copy 2Reviews in Mineralogy & Geochemistry  

E-Print Network [OSTI]

Author's Copy 2Reviews in Mineralogy & Geochemistry Vol. 71 pp. 19-37, 2010 Copyright © Mineralogical Society of America 1529-6466/10/0071-0002$05.00 DOI: 10.2138/rmg.2010.71.2 The Minnesota Density Functionals and their Applications to Problems in Mineralogy and Geochemistry Yan Zhao Commercial Print Engine

Truhlar, Donald G

42

Sandia National Laboratories: Molecular Geochemistry  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -theErik Spoerke SSLS ExhibitIowaLosSandiaManagementMolecular Geochemistry Molecular

43

Evaluation of Five Sedimentary Rocks Other Than Salt for Geologic Repository Siting Purposes  

SciTech Connect (OSTI)

The US Department of Energy (DOE), in order to increase the diversity of rock types under consideration by the geologic disposal program, initiated the Sedimary ROck Program (SERP), whose immediate objectiv eis to evaluate five types of secimdnary rock - sandstone, chalk, carbonate rocks (limestone and dolostone), anhydrock, and shale - to determine the potential for siting a geologic repository. The evaluation of these five rock types, together with the ongoing salt studies, effectively results in the consideration of all types of relatively impermeable sedimentary rock for repository purposes. The results of this evaluation are expressed in terms of a ranking of the five rock types with respect to their potential to serve as a geologic repository host rock. This comparative evaluation was conducted on a non-site-specific basis, by use of generic information together with rock evaluation criteria (RECs) derived from the DOE siting guidelines for geologic repositories (CFR 1984). An information base relevant to rock evaluation using these RECs was developed in hydrology, geochemistry, rock characteristics (rock occurrences, thermal response, rock mechanics), natural resources, and rock dissolution. Evaluation against postclosure and preclosure RECs yielded a ranking of the five subject rocks with respect to their potential as repository host rocks. Shale was determined to be the most preferred of the five rock types, with sandstone a distant second, the carbonate rocks and anhydrock a more distant third, and chalk a relatively close fourth.

Croff, A.G.; Lomenick, T.F.; Lowrie, R.S.; Stow, S.H.

2003-11-15T23:59:59.000Z

44

White Rock  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Furnished house for rent in rural White Rock Bright and sunny Ideal for a young family Safe neighborhood 10 min drive to LANL 1300 per month, basic utilities included 1180 sq ft....

45

CONTROL ID: 1469463 TITLE: In Situ Techniques for Mineralogy and Geochemistry of Small Bodies  

E-Print Network [OSTI]

CONTROL ID: 1469463 TITLE: In Situ Techniques for Mineralogy and Geochemistry of Small Bodies information about their formation histories and evolution. Combined geochemistry and mineralogy measurements measurement techniques that could provide microscopic mineralogy and isotope geochemistry. We will discuss

Rossman. George R.

46

Earth and Space Sciences Geochemistry 111  

E-Print Network [OSTI]

Earth and Space Sciences #12;Geochemistry 111 5 Earth and Space Sciences Research in the realm of Earth and Space Sci- ences focusses on the observation and qualitative and quantitative description of natural phenom- ena on Earth and in the Universe, on the detailed study and experimental and computational

Henkel, Werner

47

SHIP3QARD ORGANIC GEOCHEMISTRY JOIDES RESOLUTION  

E-Print Network [OSTI]

with the National Science Foundation. Funding for the program is provided by the following agencies: DepartmentSHIP3QARD ORGANIC GEOCHEMISTRY ON JOIDES RESOLUTION Kay-Christian Bneis Ocean Drilling Program 345 Middlefield Road Menlo Park, CA 94025 OCEAN DRILLING PROGRAM TEXAS A&MUNIVERSITY TECHNICAL NOTE

48

Q AS A LITHOLOGICAL/HYDROCARBON INDICATOR: FROM FULL WAVEFORM SONIC TO 3D SURFACE SEISMIC  

SciTech Connect (OSTI)

The goal of this project was to develop a method to exploit viscoelastic rock and fluid properties to greatly enhance the sensitivity of surface seismic measurements to the presence of hydrocarbon saturation. To reach the objective, Southwest Research Institute scientists used well log, lithology, production, and 3D seismic data from an oil reservoir located on the Waggoner Ranch in north central Texas. The project was organized in three phases. In the first phase, we applied modeling techniques to investigate seismic- and acoustic-frequency wave attenuation and its effect on observable wave attributes. We also gathered existing data and acquired new data from the Waggoner Ranch field, so that all needed information was in place for the second phase. During the second phase, we developed methods to extract attenuation from borehole acoustic and surface seismic data. These methods were tested on synthetic data constructed from realistic models and real data. In the third and final phase of the project, we applied this technology to a full data set from the Waggoner site. The results presented in this Final Report show that geological conditions at the site did not allow us to obtain interpretable results from the Q processing algorithm for 3D seismic data. However, the Q-log processing algorithm was successfully applied to full waveform sonic data from the Waggoner site. A significant part of this project was technology transfer. We have published several papers and conducted presentations at professional conferences. In particular, we presented the Q-log algorithm and applications at the Society of Exploration Geophysicists (SEG) Development and Production Forum in Austin, Texas, in May 2005. The presentation attracted significant interest from the attendees and, at the request of the SEG delegates, it was placed on the Southwest Research Institute Internet site. The presentation can be obtained from the following link: http://www.swri.org/4org/d15/elecsys/resgeo/ppt/Algorithm.pps In addition, we presented a second application of the Q algorithm at the SEG International Conference in Houston, Texas, in May 2005. The presentation attracted significant interest there as well, and it can be obtained from the following link: http://www.swri.org/4org/d15/elecsys/resgeo/ppt/attenuation.pps.

Jorge O. Parra; C.L. Hackert; L. Wilson; H.A. Collier; J. Todd Thomas

2006-03-31T23:59:59.000Z

49

Water geochemistry study of Indian Wells Valley, Inyo and Kern...  

Open Energy Info (EERE)

Final report Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Water geochemistry study of Indian Wells Valley, Inyo and Kern Counties, California....

50

Geochemistry and Isotopes of Fluids from Sulphur Springs, Valles...  

Open Energy Info (EERE)

and Isotopes of Fluids from Sulphur Springs, Valles Caldera, New Mexico Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Geochemistry and...

51

The Role of Geochemistry and Stress on Fracture Development and...  

Broader source: Energy.gov (indexed) [DOE]

The Role of Geochemistry and Stress on Fracture Development and Proppant Behavior in EGS Reservoirs Principal Investigator (Joseph Moore) Presenter Name (John McLennan)...

52

Geology and geochemistry of the Geyser Bight Geothermal Area, Umnak Island, Aleutian Islands, Alaska  

SciTech Connect (OSTI)

The Geyser Bight geothermal area is located on Umnak Island in the central Aleutian Islands. It contains one of the hottest and most extensive areas of thermal springs and fumaroles in Alaska, and is only documented site in Alaska with geysers. The zone of hot springs and fumaroles lies at the head of Geyser Creek, 5 km up a broad, flat, alluvial valley from Geyser Bight. At present central Umnak is remote and undeveloped. This report describes results of a combined program of geologic mapping, K-Ar dating, detailed description of hot springs, petrology and geochemistry of volcanic and plutonic rock units, and chemistry of geothermal fluids. Our mapping documents the presence of plutonic rock much closer to the area of hotsprings and fumaroles than previously known, thus increasing the probability that plutonic rock may host the geothermal system. K-Ar dating of 23 samples provides a time framework for the eruptive history of volcanic rocks as well as a plutonic cooling age.

Nye, C.J. (Alaska Univ., Fairbanks, AK (USA). Geophysical Inst. Alaska Dept. of Natural Resources, Fairbanks, AK (USA). Div. of Geological and Geophysical Surveys); Motyka, R.J. (Alaska Dept. of Natural Resources, Juneau, AK (USA). Div. of Geological and Geophysical Surveys); Turner, D.L. (Alaska Univ., Fairbanks, AK (USA). Geophysical Inst.); Liss, S.A. (Alaska Dept. of Natural Resources, Fairba

1990-10-01T23:59:59.000Z

53

Compiled Multi-Lab Geochemistry Synoptic Survey (LANL, ORNL, LBNL), Barrow, Alaska; 2012  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

To assess the effects of microtopography and depth on ground water geochemistry in arctic polygonal terrain.

Brent Newman; Heather Throckmorton

54

Organic geochemistry and organic petrography  

SciTech Connect (OSTI)

The Vermillion Creek coals and shales contain dominantly humic organic matter originating from woody plant tissues except for one shale unit above the coals, which contains hydrogen-rich kerogen that is mostly remains of filamentous algae, of likely lacustrine origin. The coals have two unusual features - very low inertinite content and high sulfur content compared to mined western coals. However, neither of these features points to the limnic setting reported for the Vermillion Creek sequence. The vitrinite reflectance of Vermillion Creek shales is markedly lower than that of the coals and is inversely proportional to the H/C ratio of the shales. Rock-Eval pyrolysis results, analyses of H, C, and N, petrographic observations, isotope composition of organic carbon, and amounts and compositions of the CHCl/sub 3/-extractable organic matter all suggest mixtures of two types of organic matter in the Vermillion Creek coals and clay shales: (1) isotopically heavy, hydrogen-deficient, terrestrial organic matter, as was found in the coals, and (2) isotopically light, hydrogen-rich organic matter similar to that found in one of the clay-shale samples. The different compositions of the Vermillion Creek coal, the unnamed Williams Fork Formation coals, and coals from the Middle Pennsylvanian Marmaton and Cherokee Groups are apparently caused by differences in original plant composition, alteration of organic matter related to different pH conditions of the peat swamps, and slightly different organic maturation levels.

Bostick, N.H.; Hatch, J.R.; Daws, T.A.; Love, A.H.; Lubeck, S.C.M.; Threlkeld, C.N.

1987-01-01T23:59:59.000Z

55

Rock magnetism of remagnetized carbonate rocks: another look  

E-Print Network [OSTI]

and significance of magnetism in sedimentary rocks. Journal1997. Rock Magnetism. ¨ zdemir, O Dunlop, D. J. & Oon July 30, 2013 ROCK MAGNETISM: REMAGNETIZED CARBONATES

Jackson, M.; Swanson-Hysell, N. L

2012-01-01T23:59:59.000Z

56

Lithology and well log study of Campbell E-2 geothermal test well, Humboldt  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to:46 - 429Lacey,(Monaster And Coolbaugh, 2007)isLithologically Controlled Jump to:House

57

Geology, Water Geochemistry And Geothermal Potential Of The Jemez...  

Open Energy Info (EERE)

Geology, Water Geochemistry And Geothermal Potential Of The Jemez Springs Area, Canon De San Diego, New Mexico Jump to: navigation, search OpenEI Reference LibraryAdd to library...

58

Gas Geochemistry Of The Valles Caldera Region, New Mexico And...  

Open Energy Info (EERE)

Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Gas Geochemistry Of The Valles Caldera Region, New Mexico And Comparisons With Gases At...

59

Surface Mercury Geochemistry As A Guide To Volcanic Vent Structure...  

Open Energy Info (EERE)

to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Surface Mercury Geochemistry As A Guide To Volcanic Vent Structure And Zones Of High Heat Flow In The...

60

Can seismic character identify lithologies associated with Bluell and Sherwood shorelines and shoals  

SciTech Connect (OSTI)

Several new oil fields have been discovered in the Bluell and Sherwood members of the Mission Canyon Formation, reviving the Mississippian shoreline play in the eastern Williston basin. During periodic regressions, carbonates and evaporites were deposited along the shoreline of a shallow sea. Embayments in the shoreline created traps that contain 3 - 8 million bbl of oil. Carbonate shoals developed offshore. Surrounded by impermeable carbonate mud, they trap 1 - 3 million bbl of oil. The ability of seismic character to distinguish lithologies associated with shorelines and shoals was investigated using sonic logs, models, and seismic data. Shorelines: The gross thickness of the Bluell zone can range between 40 and 70 ft, the Sherwood zone between 35 and 80 ft. Changing thicknesses on geologic models had a distinct effect on seismic character. Also, seismic character varied in response to changing stratigraphy above, within, and below the Bluell and Sherwood zones. Carbonate and anhydrite bulk densities and velocities differ by about 10%. Modeling this difference demonstrated a minimal change in seismic character. Seismic character cannot delineate the shoreline transition from carbonate to anhydrite. Other stratigraphic variations alter seismic character more than this lithologic change. Shoals: Velocity and density variations between shoal carbonates and intershoal mud can differ by 30%. Sonic log seismograms and seismic data show a distinct character change between these lithologies. Seismic character can be used to delineate carbonate shoals and mud. However, the shoal/mud character change can be modified by the seismic response to other stratigraphic variations. Calibration with nearby wells can reduce interpretational uncertainty.

Johnson, E.H. (Balcron Oil, Billings, MT (United States))

1991-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "rock lithology geochemistry" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Catalog of borehole lithologic logs from the 600 Area, Hanford Site  

SciTech Connect (OSTI)

Rockwell Hanford Operations (Rockwell) geoscientists are studying the Hanford Site subsurface environment to assure safe management operations, disposal, and storage of radioactive waste. As part of this effort, geoscientists have collected geotechnical data from about 3000 boreholes drilled on the Hanford Site since the early 1900s. These boreholes have been used for subsurface geologic, hydrologic, and engineering investigation, water supply, ground-water monitoring, and natural gas production. This report is a catalog of all obtainable (about 800) lithologic logs from boreholes in a portion of the Hanford Site known as the 600 Area.

Fecht, K R; Lillie, J T

1982-03-01T23:59:59.000Z

62

Bedrock structure, lithology and ground water: influences on slope failure initiation in Davis County, Utah  

E-Print Network [OSTI]

Variability in k for gneiss (()1), amphibolite (()2), and pegmatite (83) 29 Variability in alpha95 for the three lithologies 65 30 Variability in k for regions 1 through 8. 31 32 33 Variability in alpha95 for regions 1 through 8. A plot of ellipsoid... (scan line technique). . . 80 37 Fracture spacing and half-length for an amphibolite outcrop (scan line technique) . 81 38 Fracture spacing and half-length for a pegmatite outcrop (scan line technique) 82 Xv1 LIST OF FIGURES, CONTINUED Figure Page...

Ala, Souren Nariman

1990-01-01T23:59:59.000Z

63

RADIOIODINE GEOCHEMISTRY IN THE SRS SUBSURFACE ENVIRONMENT  

SciTech Connect (OSTI)

Iodine-129 is one of the key risk drivers for several Savannah River Site (SRS) performance assessments (PA), including that for the Low-Level Waste Disposal Facility in E-Area. In an effort to reduce the uncertainty associated with the conceptual model and the input values used in PA, several studies have recently been conducted dealing with radioiodine geochemistry at the SRS. The objective of this report was to review these recent studies and evaluate their implications on SRS PA calculations. For the first time, these studies measured iodine speciation in SRS groundwater and provided technical justification for assuming the presence of more strongly sorbing species (iodate and organo-iodine), and measured greater iodine sediment sorption when experiments included these newly identified species; specifically they measured greater sorption coefficients (K{sub d} values: the concentration ratio of iodine on the solid phase divided by the concentration in the aqueous phase). Based on these recent studies, new best estimates were proposed for future PA calculations. The new K{sub d} values are greater than previous recommended values. These proposed K{sub d} values reflect a better understanding of iodine geochemistry in the SRS subsurface environment, which permits reducing the associated conservatism included in the original estimates to account for uncertainty. Among the key contributing discoveries supporting the contention that the K{sub d} values should be increased are that: 1) not only iodide (I{sup -}), but also the more strongly sorbing iodate (IO{sub 3}{sup -}) species exists in SRS groundwater (average total iodine = 15% iodide, 42% iodate, and 43% organoiodine), 2) when iodine was added as iodate, the measured K{sub d} values were 2 to 6 times greater than when the iodine was added as iodide, and perhaps most importantly, 3) higher desorption (10 to 20 mL/g) than (ad)sorption (all previous studies) K{sub d} values were measured. The implications of this latter point is that the iodine desorption process would be appreciably slower than the (ad)sorption process, and as such would control the rate (and the PA K{sub d} value) that iodine sorbed to and therefore migrated through the subsurface sediment. High desorption K{sub d} values would result in the “effective K{sub d}” for a reactive transport model being closer to the desorption K{sub d} value (the rate limiting value) than the (ad)sorption K{sub d} value. In summary, our understanding of {sup 129}I geochemistry has greatly improved, reducing the uncertainty associated with the PA’s conceptual model, thereby permitting us to reduce the conservatism presently incorporated in PA input values to describe {sup 129}I fate and transport in the SRS subsurface environment.

Kaplan, D.; Emerson, H.; Powell, B.; Roberts, K.; Zhang, S.; Xu, C.; Schwer, K.; Li, H.; Ho, Y.; Denham, M.; Yeager, C.; Santschi, P.

2013-05-16T23:59:59.000Z

64

Exploration geochemistry: The Los Alamos experience  

SciTech Connect (OSTI)

Los Alamos National Laboratory became actively involved in geochemical exploration in 1975 by conducting a reconnaissance-scale exploration program for uranium as part of the National Uranium Resource Evaluation program. Initially, only uranium and thorium were analyzed. By 1979 Los Alamos was analyzing a multielement suite. The data were presented in histograms and as black and white concentration plots for uranium and thorium only. Data for the remaining elements were presented as hard copy data listings in an appendix to the report. In 1983 Los Alamos began using exploration geochemistry for the purpose of finding economic mineral deposits to help stimulate the economies of underdeveloped countries. Stream-sediment samples were collected on the Caribbean island of St. Lucia and a geochemical atlas of that island was produced. The data were statistically smoothed and presented as computer-generated color plots of each element of the multielement suite. Studies for the US Bureau of Land Management in 1984 consisted of development of techniques for the integration of several large data sets, which could then be used for computer-assisted mineral resource assessments. A supervised classification technique was developed which compares the attributes of grid cells containing mines or mineral occurrences with attributes of unclassified cells not known to contain mines or occurrences. Color maps indicate how closely unclassified cells match in attributes the cells with mines or occurrences. 20 refs., 1 fig., 1 tab.

Maassen, L.W.; Bolivar, S.L.

1989-01-01T23:59:59.000Z

65

The effects of lithology and initial fault angle in physical models of fault-propagation folds  

E-Print Network [OSTI]

Experimentally deformed physical rock models are used to examine the effects of changing mechanical stratigraphy and initial fault angle on the development of fault-propagation folds over a flat-ramp-flat thrust geometry. This study also...

McLain, Christopher Thomas

2001-01-01T23:59:59.000Z

66

Geochemistry of silicate-rich rocks can curtail spreading of carbon dioxide in subsurface aquifers  

E-Print Network [OSTI]

of carbon sequestration and dissolution rates in the subsurface, suggesting that pooled carbon dioxide may remain in the shallower regions of the formation for hundreds to thousands of years. The deeper regions of the reservoir can remain virtually carbon... interests. References 1. Marini, L. Geochemical Sequestration of Carbon Dioxide. (Elsevier 2007). 2. IPCC Special Report on Carbon Dioxide Capture and Storage, edited by Metz B. et al. (Cambridge University Press, UK and New York, USA, 2005). 3. Falkowski...

Cardoso, S. S. S.; Andres, J. T. H.

2014-12-11T23:59:59.000Z

67

Organic geochemistry and source rock characteristics of the Zagros Petroleum Province, southwest Iran  

SciTech Connect (OSTI)

The Zagros sector of SW Iran and its continuation into N Iraq forms the tectonized NE margin of the Middle East basin. Sedimentation in the Zagros began in the late Precambrian and continued with comparatively few interruptions until the Pliocene, when strong earth movements affected the area and gave rise to the present day large, elongated NW-SE trending structures. Some of the world's largest structurally-controlled oil fields are located in the Zagros. The most productive pay zone is the Oligo-Miocene Asmari Formation, although significant oil pools are present also in the Cenomanian-Turonian Sarvak limestone and in the Neocomian-Jurassic Khami Group carbonates. Recently, large gas deposits have been discovered in the Permo-Triassic carbonates assigned to the Deh Ram Group. Geochemical studies were carried out in five potential source beds of Eocene-Palaeocene (Pabdeh Formation), Maestrichtian-Campanian (Gurpi Formation), Albian (Kazhdumi Formation), Coniacian-Neocomian (Garau Formation) and Silurian (Gahkum Formation) age. The results showed that the organic matter in these formations is almost exclusively of marine algal origin, and that the Kazhdumi is the major source of the hydrocarbons in the Asmari and Sarvak reservoirs. The origin of the hydrocarbons in the Khami and Deh Ram reservoirs is at present speculative. 19 figures, 1 table.

Ala, M.A.; Kinghorn, R.R.F.; Rahman, M.

1980-07-01T23:59:59.000Z

68

Actualistic and Geochemical Modeling of Reservoir Rock, CO2 and Formation Fluid Interaction, Citronelle Oil Field, Alabama  

SciTech Connect (OSTI)

This report includes description of the Citronelle field study area and the work carried out in the project to characterize the geology and composition of reservoir rock material and to collect an analyze the geochemical composition of produced fluid waters from the Citronelle field. Reservoir rock samples collected from well bore core were made into thin-sections and assessed for textural properties, including pore types and porosity distribution. Compositional framework grain modal data were collected via point-counting, and grain and cement mineralogy was assessed using SEM-EDS. Geochemistry of fluid samples is described and modeled using PHREEQC. Composition of rock and produced fluids were used as inputs for TOUGHREACT reactive transport modeling, which determined the rock-fluid system was in disequilibrium.

Weislogel, Amy

2014-01-31T23:59:59.000Z

69

ASSISTANT PROFESSOR OF ENVIRONMENTAL GEOCHEMISTRY UNIVERSITY OF CALIFORNIA, BERKELEY  

E-Print Network [OSTI]

of Environmental Science, Policy, and Management (http://espm.berkeley.edu), invites applications for a tenure, molecular scale organic-mineral interactions, and reaction/transport modeling of soil processes course in Environmental or Soil Geochemistry, as well as contribute to other Department teaching needs

Silver, Whendee

70

COAL QUALITY AND GEOCHEMISTRY, GREATER GREEN RIVER BASIN, WYOMING  

E-Print Network [OSTI]

Chapter GQ COAL QUALITY AND GEOCHEMISTRY, GREATER GREEN RIVER BASIN, WYOMING By G.D. Stricker and M coal beds and zones in the Northern RockyMountains and Great Plains region, U.S. Geological Survey of selected Tertiary coal beds and zones in the Northern Rocky Mountains and Great Plains region, U

71

COAL QUALITY AND GEOCHEMISTRY, HANNA AND CARBON BASINS, WYOMING  

E-Print Network [OSTI]

Chapter HQ COAL QUALITY AND GEOCHEMISTRY, HANNA AND CARBON BASINS, WYOMING By G.D. Stricker and M coal beds and zones in the Northern RockyMountains and Great Plains region, U.S. Geological Survey of selected Tertiary coal beds and zones in the Northern Rocky Mountains and Great Plains region, U

72

COAL QUALITY AND GEOCHEMISTRY, WILLISTON BASIN, NORTH DAKOTA  

E-Print Network [OSTI]

Chapter WQ COAL QUALITY AND GEOCHEMISTRY, WILLISTON BASIN, NORTH DAKOTA By G.D. Stricker and M coal beds and zones in the Northern RockyMountains and Great Plains region, U.S. Geological Survey of selected Tertiary coal beds and zones in the Northern Rocky Mountains and Great Plains region, U

73

Trace-element geochemistry of coal resource development related to environmental quality and health  

SciTech Connect (OSTI)

This report assesses for decision makers and those involved in coal resource development the environmental and health impacts of trace-element effects arising from significant increases in the use of coal, unless unusual precautions are invoked. Increasing demands for energy and the pressing need for decreased dependence of the United States on imported oil require greater use of coal to meet the nation's energy needs during the next decade. If coal production and consumption are increased at a greatly accelerated rate, concern arises over the release, mobilization, transportation, distribution, and assimilation of certain trace elements, with possible adverse effects on the environment and human health. It is, therefore, important to understand their geochemical pathways from coal and rocks via air, water, and soil to plants, animals, and ultimately humans, and their relation to health and disease. To address this problem, the Panel on Trace Element Geochemistry of Coal Resource Development Related to Health (PECH) was established. Certain assumptions were made by the Panel to highlight the central issues of trace elements and health and to avoid unwarranted duplication of other studies. Based on the charge to the Panel and these assumptions, this report describes the amounts and distribution of trace elements related to the coal source; the various methods of coal extraction, preparation, transportation, and use; and the disposal or recycling of the remaining residues or wastes. The known or projected health effects are discussed at the end of each section.

Not Available

1980-01-01T23:59:59.000Z

74

DALHOUSIE UNIVERSITY, DEPARTMENT OF EARTH SCIENCES Assistant Professor -Geophysics, Sedimentology, or Geochemistry  

E-Print Network [OSTI]

DALHOUSIE UNIVERSITY, DEPARTMENT OF EARTH SCIENCES Assistant Professor - Geophysics, Sedimentology position in Geophysics, Sedimentology, or Geochemistry. The appointment is probationary tenure

Brownstone, Rob

75

2Reviews in Mineralogy & Geochemistry Vol. 64, pp. 5-57, 2006  

E-Print Network [OSTI]

2Reviews in Mineralogy & Geochemistry Vol. 64, pp. 5-57, 2006 Copyright © Mineralogical Society with health scientists to contribute expertise in mineralogy, materials characterization, fluid

Ahmad, Sajjad

76

A Rock Physics Based Investigation of Pore Structure Variations Associated with a CO2 Flood in a Clastic Reservoir, Delhi, LA  

E-Print Network [OSTI]

3-D seismic which spans the entire field (Figure 7). Since both Sun (2004) and Aveseth?s (2011) models correlate dry bulk modulus with the pore structure of a reservoir, possibly the Sun (2004) model maybe applicable to the 3-D range as well... ................................................................................................................. 85 5.1 Wells 159-2 and 169-5 Variability in Lithology, Porosity and Permeability ........ 86 5.2 Velocity Estimation Rock Physic Models .............................................................. 89 5.3 Variability in Bulk and Shear Modulus...

Davidson, Daniel

2013-08-14T23:59:59.000Z

77

Plutonium and Americium Geochemistry at Hanford: A Site Wide Review  

SciTech Connect (OSTI)

This report was produced to provide a systematic review of the state-of-knowledge of plutonium and americium geochemistry at the Hanford Site. The report integrates existing knowledge of the subsurface migration behavior of plutonium and americium at the Hanford Site with available information in the scientific literature regarding the geochemistry of plutonium and americium in systems that are environmentally relevant to the Hanford Site. As a part of the report, key research needs are identified and prioritized, with the ultimate goal of developing a science-based capability to quantitatively assess risk at sites contaminated with plutonium and americium at the Hanford Site and the impact of remediation technologies and closure strategies.

Cantrell, Kirk J.; Felmy, Andrew R.

2012-08-23T23:59:59.000Z

78

Software Engineer RockAuto www.RockAuto.com  

E-Print Network [OSTI]

Software Engineer ­ RockAuto www.RockAuto.com Position Description Software is the foundation · Familiarity with open-source development technologies like PHP, Perl, JavaScript and C (Linux system Lane, Madison, WI 53719) Why RockAuto? Strategic and tactical impact. We're an e-commerce company

Liblit, Ben

79

The Landscape of Klamath Basin Rock Art  

E-Print Network [OSTI]

the Lines: Ethnographic Sources and Rock Art Interpretationwhen applying these sources toward rock art interpretation.information source for developing rock art interpretations.

David, Robert James

2012-01-01T23:59:59.000Z

80

Petrologic and stable isotopic evidence for reaction-enhanced fluid flow during metamorphism of Precambrian-Cambrian sedimentary rocks, Lone Mountain, Nevada  

SciTech Connect (OSTI)

Upper Precambrian to Cambrian sedimentary rocks, regionally metamorphosed during the Mesozoic to produce marbles and calc-silicate rocks, were contact metamorphosed at the end of the Cretaceous by the Lone Mountain granitic pluton. Mineral assemblages within the calc-silicates were in equilibrium with H[sub 2]O-rich fluids, while the marbles were in equilibrium with more CO[sub 2]-rich fluids. Mineralogical variation between two different calc-silicate lithologies is the result of differences in bulk rock chemical composition, which also results in differences in isotopic composition between the calc-silicate lithologies. delta O-18 and delta C-13 values show differences of greater than 6 and 4 per mil respectively across lithologic boundaries between interlayered calc-silicates and between interlayered marbles and calc-silicates. The absence of any systematic variation between delta O-18 and delta C-13 values in the calc-silicates suggests that isotopic variation due to decarbonation reactions was limited. The differences in mineralogy and isotopic composition indicate that permeability was enhanced by reaction, permitting the focused flow of fluid through the calc-silicates. Calculated mass balance variations in delta O-18 based on reaction space analysis and Rayleigh decarbonation cannot explain the observed variations of delta O-18, requiring infiltration of externally derived fluids, while the delta C-13 compositions in the calc-silicates can be explained by Rayleigh decarbonation alone.

Richards, I.J.; Labotka, T.C. (Univ. of Tennessee, Knoxville, TN (United States). Dept. of Geochemical Sciences)

1992-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rock lithology geochemistry" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Microwave assisted hard rock cutting  

DOE Patents [OSTI]

An apparatus for the sequential fracturing and cutting of subsurface volume of hard rock (102) in the strata (101) of a mining environment (100) by subjecting the volume of rock to a beam (25) of microwave energy to fracture the subsurface volume of rock by differential expansion; and , then bringing the cutting edge (52) of a piece of conventional mining machinery (50) into contact with the fractured rock (102).

Lindroth, David P. (Apple Valley, MN); Morrell, Roger J. (Bloomington, MN); Blair, James R. (Inver Grove Heights, MN)

1991-01-01T23:59:59.000Z

82

Reconnaissance Soil Geochemistry at the Riverton Uranium Mill Tailings Remedial Action Site, Fremont  

E-Print Network [OSTI]

Reconnaissance Soil Geochemistry at the Riverton Uranium Mill Tailings Remedial Action Site, Reconnaissance soil geochemistry at the Riverton Uranium Mill Tailings Remedial Action Site, Fremont County.....................................................................................................................................................link Figures Figure 1. Location of 19 soil samples collected from the Riverton Uranium Mill Tailings Remedial

Fleskes, Joe

83

A post-Caledonian dolerite dyke from Magery, North Norway: age and geochemistry  

E-Print Network [OSTI]

A post-Caledonian dolerite dyke from Magerøy, North Norway: age and geochemistry DAVID ROBERTS-Caledonian dolerite dyke from Magerøy, North Norway: age and geochemistry. Norsk Geologisk Tidsskrift, Vol. 71, pp, Geological Survey of Norway, Post Box 3006-Lade, N-7(}()2 Trondheim, Norway; John G. Mitchell, Department

Andersen, Torgeir Bjørge

84

A Site-Wide Perspective on Uranium Geochemistry at the Hanford Site  

E-Print Network [OSTI]

PNNL-17031 A Site-Wide Perspective on Uranium Geochemistry at the Hanford Site J. Zachara C. Liu C Laboratory, Argonne, IL 2 Lawrence Berkeley National Laboratory, Berkeley, CA 3 U.S. Geological Survey, Menlo of River Protection (ORP) #12;#12;PNNL-17031 A Site-Wide Perspective on Uranium Geochemistry at the Hanford

85

Use of stratigraphic models as soft information to constrain stochastic modeling of rock properties: Development of the GSLIB-Lynx integration module  

SciTech Connect (OSTI)

Rock properties in volcanic units at Yucca Mountain are controlled largely by relatively deterministic geologic processes related to the emplacement, cooling, and alteration history of the tuffaceous lithologic sequence. Differences in the lithologic character of the rocks have been used to subdivide the rock sequence into stratigraphic units, and the deterministic nature of the processes responsible for the character of the different units can be used to infer the rock material properties likely to exist in unsampled regions. This report proposes a quantitative, theoretically justified method of integrating interpretive geometric models, showing the three-dimensional distribution of different stratigraphic units, with numerical stochastic simulation techniques drawn from geostatistics. This integration of soft, constraining geologic information with hard, quantitative measurements of various material properties can produce geologically reasonable, spatially correlated models of rock properties that are free from stochastic artifacts for use in subsequent physical-process modeling, such as the numerical representation of ground-water flow and radionuclide transport. Prototype modeling conducted using the GSLIB-Lynx Integration Module computer program, known as GLINTMOD, has successfully demonstrated the proposed integration technique. The method involves the selection of stratigraphic-unit-specific material-property expected values that are then used to constrain the probability function from which a material property of interest at an unsampled location is simulated.

Cromer, M.V. [Spectra Research Inst., Albuquerque, NM (United States); Rautman, C.A. [Sandia National Labs., Albuquerque, NM (United States). Geohydrology Dept.

1995-10-01T23:59:59.000Z

86

Geochemistry of Aluminum in High Temperature Brines  

SciTech Connect (OSTI)

The objective ofthis research is to provide quantitative data on the equilibrium and thermodynamic properties of aluminum minerals required to model changes in permeability and brine chemistry associated with fluid/rock interactions in the recharge, reservoir, and discharge zones of active geothermal systems. This requires a precise knowledge of the thermodynamics and speciation of aluminum in aqueous brines, spanning the temperature and fluid composition rangesencountered in active systems. The empirical and semi-empirical treatments of the solubility/hydrolysis experimental results on single aluminum mineral phases form the basis for the ultimate investigation of the behavior of complex aluminosilicate minerals. The principal objective in FY 1998 was to complete the solubility measurements on boehmite (AIOOH) inNaC1 media( 1 .O and 5.0 molal ionic strength, IOO-250°C). However, additional measurements were also made on boehmite solubility in pure NaOH solutions in order to bolster the database for fitting in-house isopiestic data on this system. Preliminary kinetic Measurements of the dissolution/precipitation of boehmite was also carried out, although these were also not planned in the earlier objective. The 1999 objectives are to incorporate these treatments into existing codes used by the geothermal industry to predict the chemistry ofthe reservoirs; these calculations will be tested for reliability against our laboratory results and field observations. Moreover, based on the success of the experimental methods developed in this program, we intend to use our unique high temperature pH easurement capabilities to make kinetic and equilibrium studies of pH-dependent aluminosilicate transformation reactions and other pH-dependent heterogeneous reactions.

Benezeth, P.; Palmer, D.A.; Wesolowski, D.J.

1999-05-18T23:59:59.000Z

87

Infrared Spectroscopy and Stable Isotope Geochemistry of Hydrous Silicate Glasses  

SciTech Connect (OSTI)

The focus of this DOE-funded project has been the study of volatile components in magmas and the atmosphere. Over the twenty-one year period of this project, we have used experimental petrology and stable isotope geochemistry to study the behavior and properties of volatile components dissolved in silicate minerals and melts and glasses. More recently, we have also studied the concentration and isotopic composition of CO2 in the atmosphere, especially in relation to air quality issues in the Los Angeles basin.

Stolper, Edward

2007-03-05T23:59:59.000Z

88

Rock Properties Model  

SciTech Connect (OSTI)

The purpose of this model report is to document the Rock Properties Model version 3.1 with regard to input data, model methods, assumptions, uncertainties and limitations of model results, and qualification status of the model. The report also documents the differences between the current and previous versions and validation of the model. The rock properties model provides mean matrix and lithophysae porosity, and the cross-correlated mean bulk density as direct input to the ''Saturated Zone Flow and Transport Model Abstraction'', MDL-NBS-HS-000021, REV 02 (BSC 2004 [DIRS 170042]). The constraints, caveats, and limitations associated with this model are discussed in Section 6.6 and 8.2. Model validation accomplished by corroboration with data not cited as direct input is discussed in Section 7. The revision of this model report was performed as part of activities being conducted under the ''Technical Work Plan for: The Integrated Site Model, Revision 05'' (BSC 2004 [DIRS 169635]). The purpose of this revision is to bring the report up to current procedural requirements and address the Regulatory Integration Team evaluation comments. The work plan describes the scope, objectives, tasks, methodology, and procedures for this process.

C. Lum

2004-09-16T23:59:59.000Z

89

Rock Bands/Rock Brands: Mediation and Musical Performance in Post-liberalization Bangalore  

E-Print Network [OSTI]

these recorded sources important rock pedagogical tools inwere a primary source of western rock music for young fans,Nevertheless, a source of funding for rock music performance

Coventry, Chloe Louise

2013-01-01T23:59:59.000Z

90

Project Work Plan Chromium Vadose Zone Characterization and Geochemistry  

SciTech Connect (OSTI)

The major objectives of the proposed study are to 1) determine the leaching characteristics of Cr(VI) from contaminated sediments collected from 100 area spill sites, 2) elucidate possible Cr(VI) mineral and/or chemical associations that may be responsible for Cr(VI) retention in the Hanford site 100 areas through the use of i) macroscopic solubility studies and ii) microscale characterization of contaminated sediments, and 3) from these data construct a conceptual model of Cr(VI) geochemistry in the Hanford 100 area vadose zone. These objectives are based on locating and obtaining contaminated sediment with depth and at varying Cr(VI) concentrations as we hypothesize that mineral/chemical-Cr(VI) associations should be related to the total Cr concentration and other master geochemical variables (e.g., pH, counter-cation type and concentration, and water content). In addressing these objectives, additional benefits accrued will be (1) a fuller understanding of Cr(VI) entrained in the vadose zone that will that can be utilized in modeling potential Cr(VI) source terms, and 2) accelerating the Columbia River 100 area corridor cleanup by developing remedial action based on a fundamental understanding of Cr(VI) vadose zone geochemistry.

Ainsworth, Calvin C.

2006-05-23T23:59:59.000Z

91

Iron and Steel Phosphate Rock  

E-Print Network [OSTI]

Phosphate Rock Platinum Potash Pumice Quartz Crystal Rare Earths Rhenium Rubidium Salt Sand and Gravel Graphite Peat Sulfur Beryllium Gypsum Perlite Talc Bismuth Hafnium Phosphate Rock Tantalum Boron Helium on the USGS--the Federal source for science about the Earth, its natural and living resources, natural hazards

Torgersen, Christian

92

Neutral carbohydrate geochemistry of particulate material (trap and core sediments) in an eutrophic lake (Aydat,  

E-Print Network [OSTI]

Neutral carbohydrate geochemistry of particulate material (trap and core sediments) in an eutrophic Carbohydrate compositions were determined on sinking particles and core samples from eutrophic lake Aydat; Eutrophic lake; Aydat lake 1. Introduction Polysaccharides are common structural and storage polymers

Paris-Sud XI, Université de

93

GEOCHEMISTRY AND ISOTOPE HYDROLOGY OF GROUNDWATERS IN THE STRIPA GRANITE RESULTS AND PRELIMINARY INTERPRETATION  

E-Print Network [OSTI]

S. Italy). In Isotope Hydrology, IAEA Symposium. Sm-129/53,isotopic variations in hydrology. At. Energy Rev. 14: 621-70 GEOCHEMISTRY AND ISOTOPE HYDROLOGY OF GROUNDWATERS IN THE

Fritz, P.

2011-01-01T23:59:59.000Z

94

Geochemistry and arsenic mobilisation in groundwaters of the Pannonian Basin (Hungary and Romania).  

E-Print Network [OSTI]

, calin.baciu@enviro.ubbcluj.ro, +40 (0) 264 307030 Hug, S.J.,1 , Stephan.hug@eawag.ch, +41 (0) 44 823 and Pollutant Dynamics, ETH Zurich, Switzerland * Corresponding author. The geochemistry of groundwaters from

Paris-Sud XI, Université de

95

14Reviews in Mineralogy & Geochemistry Vol. 78 pp. 543-603, 2014  

E-Print Network [OSTI]

14Reviews in Mineralogy & Geochemistry Vol. 78 pp. 543-603, 2014 Copyright © Mineralogical Society Earth materials, relevant to construct a mineralogical model of the interior of our planet

Duffy, Thomas S.

96

Soils and Brine Geochemistry and Mineralogy of Hyperarid Desert Playa, Ouargla Basin,  

E-Print Network [OSTI]

Soils and Brine Geochemistry and Mineralogy of Hyperarid Desert Playa, Ouargla Basin, Algerian. The chemical and mineralogical specificity of this hyperarid ecosystem has been compared to other areas under

Ahmad, Sajjad

97

1Reviews in Mineralogy & Geochemistry Vol. 72 pp. 1-4, 2010  

E-Print Network [OSTI]

1Reviews in Mineralogy & Geochemistry Vol. 72 pp. 1-4, 2010 Copyright © Mineralogical Society and Kinetics." The other was a Reviews of Mineralogy volume edited by Lasaga and Kirkpatrick (1981) titled

Zhang, Youxue

98

Ground-water hydrogeology and geochemistry of a reclaimed lignite surface mine  

E-Print Network [OSTI]

GROUND-WATER HYDROGEOLOGY AND GEOCHEMISTRY OF A RECLAIMED LIGNITE SURFACE MINE A Thesis by CLIFFORD RALPH POLLOCK Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER... OF SCIENCE August 1982 Major Subject: Geology GROUND-WATER HYDROGEOLOGY AND GEOCHEMISTRY OF A RECLAIMED LIGNITE SURFACE MINE A Thesis by CLIFFORD RALPH POLLOCK Approved as to sty1e and content by: (Chairman of Committee) ember) (Member (Member) F...

Pollock, Clifford Ralph

1982-01-01T23:59:59.000Z

99

Life Under Rocks Grade Level: First  

E-Print Network [OSTI]

. Procedure: Find a small and large rock (rock should be on a solid surface and not sunk in sand or muck

100

On the Geochemistry of Venice Lagoon Sediments. Scripps Institution of Oceanography SEDiment Research Program – SIOSED. A Background Report  

E-Print Network [OSTI]

profiles of wet marine sediments. Geochemistry, Geophysics,2006). New techniques in sediment core analysis. Geol.Soc.1997). Metal fluxes to the sediments of the northern Venice

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rock lithology geochemistry" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Isotope Geochemistry of Thermal and Nonthermal Waters in the...  

Open Energy Info (EERE)

geothermal fluids display a positive oxygen 18 shift of not less than 2 because of rock-water isotopic exchange at 220-300C. The Valles geothermal system is capped by a...

102

Geothermal investigations in Idaho. Part 1. Geochemistry and...  

Open Energy Info (EERE)

from a wide range of rock types-igneous, metamorphic, and both consolidated and unconsolidated sediments. Twenty-eight of the sites visited occur on or near fault zones while a...

103

Geochemical evaluation of oils and source rocks from the Western Siberian basin, U. S. S. R  

SciTech Connect (OSTI)

Although the Western Siberian basin is among the most prolific in the world, there has been disagreement among Soviet geoscientists on the origin of the petroleum within this basin. Screening geochemical analyses were used to select several oils and potential source rocks for a preliminary study using detailed biomarker and supporting geochemistry. Possible sources for this petroleum include rocks of Middle Jurassic, Upper Jurassic, and Lower Cretaceous age. Results indicate that most of the analyzed Western Siberian oils, occurring in reservoirs from Middle Jurassic to Late Cretaceous in age, are derived from the Upper Jurassic Bazhenov Formation. The locations of the samples in the study generally correspond to the distribution of the most effective oil-generative parts of the Bazhenov Formation. Analyses show that the Bazhenov rock samples contain abundant marine algal and bacterial organic matter, preserved under anoxic depositional conditions. Biomarkers show that thermal maturities of the samples range from the early to late oil-generative window and that some are biodegraded. For example, the Salym No. 114 oil, which flowed directly from the Bazhenov Formation, shows a maturity equivalent to the late oil window. The Van-Egan no. 110 oil shows maturity equivalent to the early oil window and is biodegraded. This oil shows preferential microbial conversion of lower homologs of the 17{alpha}, 21{beta}(H)-hopanes to 25-nor-17{alpha}(H)-hopanes.

Peters, K.E.; Huizinga, B.J. (Chevron Overseas Petroleum, Inc., San Ramon, CA (United States)); Moldowan, J.M. (Chevron Oil Field Research Co., Richmond, CA (United States)); Kontorovich, A.E.; Stasova, O. (Siberian Scientific Research Institute for Geology, Geophysics and Mineral Resources, Novobsibirsk (Russian Federation)); Demaison, G.J.

1991-03-01T23:59:59.000Z

104

Favorable Geochemistry from Springs and Wells in COlorado  

SciTech Connect (OSTI)

Citation Information: Originator: Geothermal Development Associates, Reno Nevada Originator: United States Geological Survey (USGS) Originator: Colorado Geological Survey Publication Date: 2012 Title: Favorable Geochemistry Edition: First Publication Information: Publication Place: Reno Nevada Publisher: Geothermal Development Associates, Reno, Nevada Description: This layer contains favorable geochemistry for high-temperature geothermal systems, as interpreted by Richard "Rick" Zehner. The data is compiled from the data obtained from the USGS. The original data set combines 15,622 samples collected in the State of Colorado from several sources including 1) the original Geotherm geochemical database, 2) USGS NWIS (National Water Information System), 3) Colorado Geological Survey geothermal sample data, and 4) original samples collected by R. Zehner at various sites during the 2011 field season. These samples are also available in a separate shapefile FlintWaterSamples.shp. Data from all samples were reportedly collected using standard water sampling protocols (filtering through 0.45 micron filter, etc.) Sample information was standardized to ppm (micrograms/liter) in spreadsheet columns. Commonly-used cation and silica geothermometer temperature estimates are included. Spatial Domain: Extent: Top: 4515595.841032 m Left: 149699.513964 m Right: 757959.309388 m Bottom: 4104156.435530 m Contact Information: Contact Organization: Geothermal Development Associates, Reno, Nevada Contact Person: Richard “Rick” Zehner Address: 3740 Barron Way City: Reno State: NV Postal Code: 89511 Country: USA Contact Telephone: 775-737-7806 Spatial Reference Information: Coordinate System: Universal Transverse Mercator (UTM) WGS’1984 Zone 13N False Easting: 500000.00000000 False Northing: 0.00000000 Central Meridian: -105.00000000 Scale Factor: 0.99960000 Latitude of Origin: 0.00000000 Linear Unit: Meter Datum: World Geodetic System 1984 (WGS ’1984) Prime Meridian: Greenwich Angular Unit: Degree Digital Form: Format Name: Shape file

Zehner, Richard E.

2012-02-01T23:59:59.000Z

105

Assessment of industrial minerals and rocks in the controlled area  

SciTech Connect (OSTI)

Yucca Mountain in Nye County, Nevada, is a potential site for a permanent repository for high-level nuclear waste in Miocene ash flow tuff. The Yucca Mountain controlled area occupies approximately 98 km{sup 2} that includes the potential repository site. The Yucca Mountain controlled area is located within the southwestern Nevada volcanic field, a large area of Miocene volcanism that includes at least four major calderas or cauldrons. It is sited on a remnant of a Neogene volcanic plateau that was centered around the Timber Mountain caldera complex. The Yucca Mountain region contains many occurrences of valuable or potentially valuable industrial minerals, including deposits with past or current production of construction aggregate, borate minerals, clay, building stone, fluorspar, silicate, and zeolites. The existence of these deposits in the region and the occurrence of certain mineral materials at Yucca Mountain, indicate that the controlled area may have potential for industrial mineral and rock deposits. Consideration of the industrial mineral potential within the Yucca Mountain controlled area is mainly based on petrographic and lithologic studies of samples from drill holes in Yucca Mountain. Clay minerals, zeolites, fluorite, and barite, as minerals that are produced economically in Nevada, have been identified in samples from drill holes in Yucca Mountain.

Castor, S.B. [Nevada Bureau of Mines and Geology, Reno, NV (United States); Lock, D.E. [Mackay School of Mines, Reno, NV (United States)

1996-08-01T23:59:59.000Z

106

Strength of transversely isotropic rocks  

E-Print Network [OSTI]

This thesis proposes a new Anisotropic Matsuoka-Nakai (AMN) criterion to characterize the failure of transversely isotropic rocks under true triaxial stress states. One major obstacle in formulating an anisotropic criterion ...

Pei, Jianyong, 1975-

2008-01-01T23:59:59.000Z

107

Stimulation Techniques Used In Enhanced Geothermal Systems: Perspectives From Geomechanics and Rock Physics  

SciTech Connect (OSTI)

Understanding the processes that enhance fluid flow in crustal rocks is a key step towards extracting sustainable thermal energy from the Earth. To achieve this, geoscientists need to identify the fundamental parameters that govern how rocks respond to stimulation techniques, as well as the factors that control the evolution of permeability networks. These parameters must be assessed over variety of spatial scales: from microscopic rock properties (such as petrologic, mechanical, and diagenetic characteristics) to macroscopic crustal behavior (such as tectonic and hydro-dynamic properties). Furthermore, these factors must be suitably monitored and/or characterized over a range of temporal scales before the evolutionary behavior of geothermal fields can be properly assessed. I am reviewing the procedures currently employed for reservoir stimulation of geothermal fields. The techniques are analyzed in the context of the petrophysical characteristics of reservoir lithologies, studies of wellbore data, and research on regional crustal properties. I determine common features of geothermal fields that can be correlated to spatiotemporal evolution of reservoirs, with particular attention to geomechanics and petrophysical properties. The study of these correlations can then help guide procedures employed when targeting new prospective geothermal resources.

Stephen L. Karner; Joel Renner

2005-01-01T23:59:59.000Z

108

Rock physics at Los Alamos Scientific Laboratory  

SciTech Connect (OSTI)

Rock physics refers to the study of static and dynamic chemical and physical properties of rocks and to phenomenological investigations of rocks reacting to man-made forces such as stress waves and fluid injection. A bibliography of rock physics references written by LASL staff members is given. Listing is by surname of first author. (RWR)

Not Available

1980-01-01T23:59:59.000Z

109

Postdoctoral fellowship in ore-deposit geology/igneous geochemistry Marie-Curie Initial Training Network ABYSS (ER1)  

E-Print Network [OSTI]

Postdoctoral fellowship in ore-deposit geology/igneous geochemistry Marie-Curie Initial Training Network ABYSS (ER1) Training network on reactive geological systems from the mantle to the abyssal sub-Cu-PGE deposits Requirements: Candidates must hold PhD in geology/geochemistry This fellowship is for a period

Demouchy, Sylvie

110

Multiscale heterogeneity characterization of tidal channel, tidal delta and foreshore facies, Almond Formation outcrops, Rock Springs uplift, Wyoming  

SciTech Connect (OSTI)

In order to accurately predict fluid flow within a reservoir, variability in the rock properties at all scales relevant to the specific depositional environment needs to be taken into account. The present work describes rock variability at scales from hundreds of meters (facies level) to millimeters (laminae) based on outcrop studies of the Almond Formation. Tidal channel, tidal delta and foreshore facies were sampled on the eastern flank of the Rock Springs uplift, southeast of Rock Springs, Wyoming. The Almond Fm. was deposited as part of a mesotidal Upper Cretaceous transgressive systems tract within the greater Green River Basin. Bedding style, lithology, lateral extent of beds of bedsets, bed thickness, amount and distribution of depositional clay matrix, bioturbation and grain sorting provide controls on sandstone properties that may vary more than an order of magnitude within and between depositional facies in outcrops of the Almond Formation. These features can be mapped on the scale of an outcrop. The products of diagenesis such as the relative timing of carbonate cement, scale of cemented zones, continuity of cemented zones, selectively leached framework grains, lateral variability of compaction of sedimentary rock fragments, and the resultant pore structure play an equally important, although less predictable role in determining rock property heterogeneity. A knowledge of the spatial distribution of the products of diagenesis such as calcite cement or compaction is critical to modeling variation even within a single facies in the Almond Fin. because diagenesis can enhance or reduce primary (depositional) rock property heterogeneity. Application of outcrop heterogeneity models to the subsurface is greatly hindered by differences in diagenesis between the two settings. The measurements upon which this study is based were performed both on drilled outcrop plugs and on blocks.

Schatzinger, R.A.; Tomutsa, L. [BDM Petroleum Technologies, Bartlesville, OK (United States)

1997-08-01T23:59:59.000Z

111

Rock-physics templates for hydrocarbon source rocks  

E-Print Network [OSTI]

May 27, 2014 ... to model the degree of maturity of the shale and obtain its elastic ...... Luna, Gacheta and Eagle Ford Shale Formations using digital rock ... In N. D. Naeser and T. H. McCulloh, editors, Thermal History of Sedimentary Basins:.

2014-05-27T23:59:59.000Z

112

Evaluation of the hot-dry-rock geothermal potential of an area near Mountain Home, Idaho  

SciTech Connect (OSTI)

Evaluation of an area near Mountain Home, Idaho, was performed to assess the hot dry rock (HDR) potential of the prospect. The techniques reported include telluric and gravity profiling, passive seismic, hydrology and water chemistry surveys, and lineament analysis. Gravity and telluric surveys were unsuccessful in locating fractures buried beneath recent volcanics and sediments of the plain because density and conductivity contrasts were insufficient. Gravity modeling indicated areas where granite was not likely to be within drilling depth, and telluric profiling revealed an area in the northwest part of the prospect where higher conductivity suggested the presence of fractures or water or both, thereby making it unsuitable for HDR. Water geochemistry indicated that (hot water) reservoir temperatures do not exceed 100/sup 0/C. An area in the east central part of the prospect was delineated as most favorable for HDR development. Temperature is expected to be 200/sup 0/C at 3-km depth, and granitic rock of the Idaho Batholith should be intersected at 2- to 3-km depth.

Arney, B.H.; Goff, F.

1982-05-01T23:59:59.000Z

113

Lichen: the challenge for rock art conservation  

E-Print Network [OSTI]

This study investigates the effects that lichens have on rock surfaces in which ancient rock art (petroglyphs and pictographs) may be found. The study area includes four sites in the United States: one quartzite site in southwest Minnesota, two...

Dandridge, Debra Elaine

2007-04-25T23:59:59.000Z

114

Rock magnetism of remagnetized carbonate rocks: another look MIKE JACKSON* & NICHOLAS L. SWANSON-HYSELL  

E-Print Network [OSTI]

Rock magnetism of remagnetized carbonate rocks: another look MIKE JACKSON* & NICHOLAS L. SWANSON-HYSELL Institute for Rock Magnetism, Winchell School of Earth Sciences, University of Minnesota, Minnesota, US, dominantly in the super- paramagnetic and stable single-domain size range, also give rise to distinctive rock-magnetic

Swanson-Hysell, Nicholas

115

Analysis of rock-fall and rock-fall avalanche seismograms in the French Alps  

E-Print Network [OSTI]

the source rock slope (Figure 1), the falling mass strikes the talus slope and breaks up and/or bounces1 Analysis of rock-fall and rock-fall avalanche seismograms in the French Alps J. Deparis, D reviews seismograms from 10 rock-fall events recorded between 1992 and 2001 by the permanent seismological

Paris-Sud XI, Université de

116

Digitally Available Interval-Specific Rock-Sample Data Compiled from Historical Records, Nevada Test Site and Vicinity, Nye County, Nevada  

SciTech Connect (OSTI)

Between 1951 and 1992, underground nuclear weapons testing was conducted at 828 sites on the Nevada Test Site, Nye County, Nevada. Prior to and following these nuclear tests, holes were drilled and mined to collect rock samples. These samples are organized and stored by depth of borehole or drift at the U.S. Geological Survey Core Library and Data Center at Mercury, Nevada, on the Nevada Test Site. From these rock samples, rock properties were analyzed and interpreted and compiled into project files and in published reports that are maintained at the Core Library and at the U.S. Geological Survey office in Henderson, Nevada. These rock-sample data include lithologic descriptions, physical and mechanical properties, and fracture characteristics. Hydraulic properties also were compiled from holes completed in the water table. Rock samples are irreplaceable because pre-test, in-place conditions cannot be recreated and samples cannot be recollected from the many holes destroyed by testing. Documenting these data in a published report will ensure availability for future investigators.

David B. Wood

2009-10-08T23:59:59.000Z

117

Author's personal copy Tungsten geochemistry and implications for understanding the Earth's interior  

E-Print Network [OSTI]

Author's personal copy Tungsten geochemistry and implications for understanding the Earth Keywords: tungsten uranium basalt core mantle concentration ratio The concentration of tungsten (W of tungsten (W) was sequestered into the core (Jagoutz et al., 1979; Sun, 1982; Newsom and Palme, 1984

Mcdonough, William F.

118

SPATIAL FACTOR ANALYSIS OF STREAM SEDIMENT GEOCHEMISTRY DATA FROM SOUTH GREENLAND  

E-Print Network [OSTI]

SPATIAL FACTOR ANALYSIS OF STREAM SEDIMENT GEOCHEMISTRY DATA FROM SOUTH GREENLAND Allan A. Nielsen1 and Greenland, Thoravej 8, DK-2400 København NV, Denmark. ast@geus.dk SUMMARY This paper describes from South Greenland. Kriged MAF images are compared with kriged images based on varimax rotated

119

Geochemistry, toxicity, and sorption properties of contaminated sediments and pore waters  

E-Print Network [OSTI]

waters have neutralized on mixing with neutral-pH lake water, producing fine-grained, metal- richGeochemistry, toxicity, and sorption properties of contaminated sediments and pore waters from two Acid mine waters from the Iron Mountain Superfund Site, Shasta County, California, flow through Spring

120

ELSEVIER Sedimentary Geology 124 (1999) 131147 UPb ages and geochemistry of granite pebbles from the Devonian  

E-Print Network [OSTI]

ELSEVIER Sedimentary Geology 124 (1999) 131­147 U­Pb ages and geochemistry of granite pebbles from 1998 Abstract The geochemical composition of some garnet-bearing biotite granite pebbles within from two samples. The granites have suffered low-grade metamorphism as shown by the development

Dörr, Wolfgang

Note: This page contains sample records for the topic "rock lithology geochemistry" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Linking Hydrothermal Geochemistry to Organismal Physiology: Physiological Versatility in Riftia pachyptila  

E-Print Network [OSTI]

Linking Hydrothermal Geochemistry to Organismal Physiology: Physiological Versatility in Riftia and oxygen to generate energy for carbon fixation, and the symbiont's nitrate reduction to ammonia for energy in the EPR and the Guaymas basin, a sedimented, hydrothermal vent field. We observed marked differences

Girguis, Peter R.

122

Abstract, International Applied Geochemistry Symposium, 2009 Peat groundwater as a medium for surficial geochemical exploration  

E-Print Network [OSTI]

Abstract, International Applied Geochemistry Symposium, 2009 1 Peat groundwater as a medium-mail: stew.hamilton@ontario.ca) ABSTRACT: Kimberlite-specific chemical responses are visible in shallow peat and migrated through the Tyrell Sea sediment into shallow peat groundwater. The presence of elevated values

123

Geochemistry of peat over kimberlites in the Attawapiskat area, James Bay Lowlands, northern Canada  

E-Print Network [OSTI]

Geochemistry of peat over kimberlites in the Attawapiskat area, James Bay Lowlands, northern Canada by peatlands. Peat samples were examined in the Attawapiskat area, a region of discontinuous permafrost, where more than 19 kimberlite pipes have been found beneath a cover of peat (2­4 m thick) and Quaternary

124

Detrital geochronology and geochemistry of CretaceousEarly Miocene strata of Nepal: implications for timing and  

E-Print Network [OSTI]

Detrital geochronology and geochemistry of Cretaceous­Early Miocene strata of Nepal: implications of the southern Lesser Himalayan zone of central Nepal. The Cretaceous­ Paleocene(?) Amile Formation is dominated documented by the U­Pb zircon ages. The fact that middle Eocene strata in Nepal were derived from

Najman, Yani

125

11Reviews in Mineralogy & Geochemistry Vol. 68, pp. XXX-XXX, 2007  

E-Print Network [OSTI]

11Reviews in Mineralogy & Geochemistry Vol. 68, pp. XXX-XXX, 2007 Copyright © Mineralogical Society, mineralogy, and isotopic distributions of oxygen in cometary materials can provide unique insights have been linked to short-period comets by their unequilibrated mineralogy, fragile structure, fine

126

Thursday, March 15, 2007 POSTER SESSION II: MARS SEDIMENTS AND GEOCHEMISTRY: ANALOGS AND MINERALOGY  

E-Print Network [OSTI]

Thursday, March 15, 2007 POSTER SESSION II: MARS SEDIMENTS AND GEOCHEMISTRY: ANALOGS AND MINERALOGY D. L. Geochemical and Mineralogical Analysis of a "Simple" Evaporite with Organic Carbon and Colorado provides a setting with chemical and mineralogical characteristics relevant to what may be found

Rathbun, Julie A.

127

2Reviews in Mineralogy & Geochemistry Vol. 75 pp. 7-46, 2013  

E-Print Network [OSTI]

2Reviews in Mineralogy & Geochemistry Vol. 75 pp. 7-46, 2013 Copyright © Mineralogical Society of America 1529-6466/13/0075-0002$00.00 DOI: 10.2138/rmg.2013.75.2 Carbon Mineralogy and Crystal Chemistry and thus is unique in the diversity of its mineralogical roles. Carbon has the ability to bond to itself

Wang, Xiaorui "Ray"

128

Environmental Geochemistry Research Program Dr. Bruce E. Herbert, Texas A&M University  

E-Print Network [OSTI]

Environmental Geochemistry Research Program Dr. Bruce E. Herbert, Texas A&M University Geology, South Tx. Recent Funded Research Projects Nonpoint Source Contaminants from South Texas Uranium Mines): Watershed-Scale bioavailability of arsenic released from South Texas uranium mines · Chris Markley, Ph

Herbert, Bruce

129

Rare sulfur and triple oxygen isotope geochemistry of volcanogenic sulfate aerosols  

E-Print Network [OSTI]

Rare sulfur and triple oxygen isotope geochemistry of volcanogenic sulfate aerosols I.N. Bindeman a of Technology, Pasadena, CA, USA c Department of Earth and Planetary Sciences, McGill University, Montreal, Que., Canada d Department of Geology and Earth System Science Interdisciplinary Center, University of Maryland

Bindeman, Ilya N.

130

Relative Permeability of Fractured Rock  

SciTech Connect (OSTI)

Contemporary understanding of multiphase flow through fractures is limited. Different studies using synthetic fractures and various fluids have yielded different relative permeability-saturation relations. This study aimed to extend the understanding of multiphase flow by conducting nitrogen-water relative permeability experiments on a naturally-fractured rock from The Geysers geothermal field. The steady-state approach was used. However, steady state was achieved only at the endpoint saturations. Several difficulties were encountered that are attributed to phase interference and changes in fracture aperture and surface roughness, along with fracture propagation/initiation. Absolute permeabilities were determined using nitrogen and water. The permeability values obtained change with the number of load cycles. Determining the absolute permeability of a core is especially important in a fractured rock. The rock may change as asperities are destroyed and fractures propagate or st rain harden as the net stresses vary. Pressure spikes occurred in water a solute permeability experiments. Conceptual models of an elastic fracture network can explain the pressure spike behavior. At the endpoint saturations the water relative permeabilities obtained are much less than the nitrogen gas relative permeabilities. Saturations were determined by weighing and by resistivity calculations. The resistivity-saturation relationship developed for the core gave saturation values that differ by 5% from the value determined by weighing. Further work is required to complete the relative permeability curve. The steady-state experimental approach encountered difficulties due to phase interference and fracture change. Steady state may not be reached until an impractical length of time. Thus, unsteady-state methods should be pursued. In unsteady-state experiments the challenge will be in quantifying rock fracture change in addition to fluid flow changes.

Mark D. Habana

2002-06-30T23:59:59.000Z

131

Rock Sampling | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to: navigation, searchVirginia BlueRiverwoods,Rock Sampling Details Activities (18) Areas

132

Geology, hydrothermal petrology, stable isotope geochemistry, and fluid inclusion geothermometry of LASL geothermal test well C/T-1 (Mesa 31-1), East Mesa, Imperial Valley, California, USA  

SciTech Connect (OSTI)

Borehole Mesa 31-1 (LASL C/T-1) is an 1899-m (6231-ft) deep well located in the northwestern part of the East Mesa Geothermal Field. Mesa 31-1 is the first Calibration/Test Well (C/T-1) in the Los Alamos Scientific Laboratory (LASL), Geothermal Log Interpretation Program. The purpose of this study is to provide a compilation of drillhole data, drill cuttings, well lithology, and formation petrology that will serve to support the use of well LASL C/T-1 as a calibration/test well for geothermal logging. In addition, reviews of fluid chemistry, stable isotope studies, isotopic and fluid inclusion geothermometry, and the temperature log data are presented. This study provides the basic data on the geology and hydrothermal alteration of the rocks in LASL C/T-1 as background for the interpretation of wireline logs.

Miller, K.R.; Elders, W.A.

1980-08-01T23:59:59.000Z

133

Petroleum geochemistry of the Kura/Iori Interfluve  

SciTech Connect (OSTI)

Plate tectonic reconstructions suggest that the Kura/Iobi Interfluve was located in a back-arc; during the Paleogene when the main sources, reservoirs and seals were deposited and structural traps created. The Lower and Upper Eocene and, to a much lesser extent, the Lower Oligocene transgressive shales are the most probable candidates for effective oil-source rocks in the area. A source evaluation was made for selected core samples from Upper Eocene, Oligocene, and Lower Miocene shales. TOC, extractable organic matter, and the Rock-Eval genetic potential for these mudstones are high enough to consider them excellent potential source rocks. Oil-oil correlations carried out via biomarkers and other conventional geochemical techniques show that both the Middle Eocene and Lowermost Upper Eocene reservoired oils are very similar to each other and suggest that they are derived from common source facies. Oil-source correlations suggest that oils were generated from Eocene shales, off-structure, and that updip migration of hydrocarbons into anticlines having middle Eocene reservoirs, was fault controlled. Thinning of the Upper Eocene section on anticlines indicates that structural growth occurred contemporaneously with trap formation. The Upper Miocene and Pliocene orogeny breached, via thrust faulting, Eocene reservoirs with {open_quote}primary{close_quote} hydrocarbon accumulation already in place. Such breaching caused {open_quotes}selective{close_quote} re-migration of {open_quotes}light ends{close_quote} into shallower Miocene reservoirs or to the surface. Oil re-migration is particularly evident in traps located close to the thrust of the Greater Caucasus.

Rinaldi, G.G.L. [Unocal Corp., Sugar Land, TX (United States); Narimanov, A.A. [State Oil Co. of the Azerbaijan Republic, Baku (Azerbaijan)

1995-08-01T23:59:59.000Z

134

Elemental mixing systematics and SrNd isotope geochemistry of mlange formation: Obstacles to identification of  

E-Print Network [OSTI]

to identification of fluid sources to arc volcanics Robert L. King a,b,, Gray E. Bebout a,b , Takuya Moriguti b protoliths to form hybridized bulk compositions not typical of seafloor "input" lithologies. In general, all by the evolution of bulk composition within mélange zones are probably the most important control of solid, liquid

Bebout, Gray E.

135

Hot Dry Rock; Geothermal Energy  

SciTech Connect (OSTI)

The commercial utilization of geothermal energy forms the basis of the largest renewable energy industry in the world. More than 5000 Mw of electrical power are currently in production from approximately 210 plants and 10 000 Mw thermal are used in direct use processes. The majority of these systems are located in the well defined geothermal generally associated with crustal plate boundaries or hot spots. The essential requirements of high subsurface temperature with huge volumes of exploitable fluids, coupled to environmental and market factors, limit the choice of suitable sites significantly. The Hot Dry Rock (HDR) concept at any depth originally offered a dream of unlimited expansion for the geothermal industry by relaxing the location constraints by drilling deep enough to reach adequate temperatures. Now, after 20 years intensive work by international teams and expenditures of more than $250 million, it is vital to review the position of HDR in relation to the established geothermal industry. The HDR resource is merely a body of rock at elevated temperatures with insufficient fluids in place to enable the heat to be extracted without the need for injection wells. All of the major field experiments in HDR have shown that the natural fracture systems form the heat transfer surfaces and that it is these fractures that must be for geothermal systems producing from naturally fractured formations provide a basis for directing the forthcoming but, equally, they require accepting significant location constraints on HDR for the time being. This paper presents a model HDR system designed for commercial operations in the UK and uses production data from hydrothermal systems in Japan and the USA to demonstrate the reservoir performance requirements for viable operations. It is shown that these characteristics are not likely to be achieved in host rocks without stimulation processes. However, the long term goal of artificial geothermal systems developed by systematic engineering procedures at depth may still be attained if high temperature sites with extensive fracturing are developed or exploited. [DJE -2005

None

1990-01-01T23:59:59.000Z

136

Big Bang Day : Physics Rocks  

ScienceCinema (OSTI)

Is particle physics the new rock 'n' roll? The fundamental questions about the nature of the universe that particle physics hopes to answer have attracted the attention of some very high profile and unusual fans. Alan Alda, Ben Miller, Eddie Izzard, Dara O'Briain and John Barrowman all have interests in this branch of physics. Brian Cox - CERN physicist, and former member of 90's band D:Ream, tracks down some very well known celebrity enthusiasts and takes a light-hearted look at why this subject can appeal to all of us.

None

2011-04-25T23:59:59.000Z

137

Hydrogeologic factors affecting cavern morphology within rocks of Mississippian age in northwestern Arkansas  

SciTech Connect (OSTI)

Cavern development within rocks of Mississippian age in northwestern Arkansas is associated with two Pleistocene erosional features, the Boston Mountains Plateau and the Springfield Plateau. Each plateau is characterized by a distinct stratigraphic sequence with unique lithologies. Cavern morphology (both cross-sectional and planimetric) in each plateau is the result of the complex interaction of numerous hydrogeologic factors. Four of the most dominant factors which affect cavern morphology appear to be: (1) composition and continuity of the confining units; (2) percentage of noncarbonate components in rocks of the cavern-forming interval; (3) nature and distribution of ground-water recharge to the cavern-forming interval; and (4) nature and distribution of fractures within the cavern-forming interval. Network maze patterns typically develop in the Pitkin Limestone, the formation in which most caverns form beneath the Boston Mountains Plateau. The Pitkin, a bioclastic limestone, is confined above by siltstones of the Cane Hill member of the Hale Formation and below by shales of the Fayetteville Formation. The maze pattern indicates that these caverns probably were formed by dissolution of the rock matrix by diffuse recharge moving vertically through leaky confining units. Single rooms are the dominant cavern morphology in the chert-dominated Boone Formation of the Springfield Plateau. Where the concentration of chert is greater than 50 percent, the Boone lacks structural integrity and fails to develop well-integrated conduit networks. Point recharge features in outcrop areas of the Boone Formation are not visible in most of the Springfield Plateau because the insoluble residuum masks the upper bedrock surface. Where the Boone Formation is less than 7 meters thick, surface karst features are more prevalent.

Fanning, B.J. (Univ. of Arkansas, Fayetteville, AR (United States). Dept. of Geology); Brahana, J.V. (Univ. of Arkansas , Fayetteville, AR (United States). Geological Survey)

1993-02-01T23:59:59.000Z

138

Validation of Innovative Exploration Technologies for Newberry Volcano: Geochemistry data from 55-29 and 46-16 wells at Newberry 2012  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

Validation of Innovative Exploration Technologies for Newberry Volcano: Geochemistry data from 55-29 and 46-16 wells at Newberry 2012

Jaffe, Todd

139

Miocene core complex development and coeval supradetachment basin evolution of Paros, Greece  

E-Print Network [OSTI]

(Brichau et al., 2006), detrital ages of the hanging wall rocks (Sanchez-Gomez et al., 2002) and new lithologic and structural mapping (Papp, 2007). This study builds on the foundation laid by these authors and contributes to the growing body of science... and Geochemistry, 58, 441–448. Sanchez-Gomez, M., Avigad, D., Heimann, A., 2002. Geochronology of clasts in allochthonous Miocene sedimentary sequence on Mykonos and Paros Islands: implications for backarc extension in the Aegean Sea. Journal...

Bargnesi, Evan Anthony

2011-05-23T23:59:59.000Z

140

Laboratory characterization of rock joints  

SciTech Connect (OSTI)

A laboratory characterization of the Apache Leap tuff joints under cyclic pseudostatic and dynamic loads has been undertaken to obtain a better understanding of dynamic joint shear behavior and to generate a complete data set that can be used for validation of existing rock-joint models. Study has indicated that available methods for determining joint roughness coefficient (JRC) significantly underestimate the roughness coefficient of the Apache Leap tuff joints, that will lead to an underestimation of the joint shear strength. The results of the direct shear tests have indicated that both under cyclic pseudostatic and dynamic loadings the joint resistance upon reverse shearing is smaller than that of forward shearing and the joint dilation resulting from forward shearing recovers during reverse shearing. Within the range of variation of shearing velocity used in these tests, the shearing velocity effect on rock-joint behavior seems to be minor, and no noticeable effect on the peak joint shear strength and the joint shear strength for the reverse shearing is observed.

Hsiung, S.M.; Kana, D.D.; Ahola, M.P.; Chowdhury, A.H.; Ghosh, A. [Southwest Research Inst., San Antonio, TX (United States). Center for Nuclear Waste Regulatory Analyses

1994-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "rock lithology geochemistry" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

The Landscape of Klamath Basin Rock Art  

E-Print Network [OSTI]

I incorporate results from the XRF and projectile pointRay Fluorescence (hereafter, XRF) to help affiliate rock artstudies or reports in which XRF analysis have been done.

David, Robert James

2012-01-01T23:59:59.000Z

142

Rock-Water Interactions In Hot Dry Rock Geothermal Systems- Field...  

Open Energy Info (EERE)

Rock-Water Interactions In Hot Dry Rock Geothermal Systems- Field Investigations Of In Situ Geochemical Behavior Jump to: navigation, search OpenEI Reference LibraryAdd to library...

143

Rock Bands/Rock Brands: Mediation and Musical Performance in Post-liberalization Bangalore  

E-Print Network [OSTI]

as in its modes of fandom, production and dissemination. Inaspects of rock music fandom: America had everything a youngthe beginnings of rock music fandom in India, even while, as

Coventry, Chloe Louise

2013-01-01T23:59:59.000Z

144

Organic geochemistry of continental margin and deep ocean sediments  

SciTech Connect (OSTI)

Objective was to study petroleum formation, migration, and accumulation in marine sediments. Collaboration in Global Basin Research Network (GBRN) showed that the hydrocarbon parameters used in oil exploration are also valuable in understanding sedimentary basin fluid flow processes, crucial to production of drinking water, metal ore deposits, and gas and oil. Two goals are : (1) to run hydrous pyrolysis experiments on immature gas-prone source rocks, in order to evaluate the potential influence of gas evolution on oil migration and subsurface pressurization, and (2) to integrate organic geochemical data from the Louisiana Gulf Coast into GBRN subsurface visualization and computer modeling. Experimental methods (petrography, EPR, thermogravimetric Fourier transform infrared spectroscopy) were also studied.

Whelan, J.K.; Hunt, J.M.; Seewald, J.M.; Eglinton, L.B.; Zawoysky, M.; Dickinson, P.; Dickneider, T.

1992-09-01T23:59:59.000Z

145

Carbon-14 geochemistry at the Savannah River Site  

SciTech Connect (OSTI)

Carbon-14 is among the key radionuclides driving risk at the E-Area Low-Level Waste Disposal Facility on the Savannah River Site (SRS). Much of this calculated risk is believed to be the result of having to make conservative assumptions in risk calculations because of the lack of site-specific data. The original geochemical data package (Kaplan 2006) recommended that performance assessments and composite analyses for the SRS assume that {sup 14}C did not sorbed to sediments or cementitious materials, i.e., that C-14 K{sub d} value (solid:liquid concentration ratio) be set to 0 mL/g (Kaplan 2006). This recommendation was based primarily on the fact that no site-specific experimental work was available and the assumption that the interaction of anionic {sup 14}C as CO{sub 2}{sup 2-}) with similarly charged sediments or cementitious materials would be minimal. When used in reactive transport equations, the 0 mL/g Kd value results in {sup 14}C not interacting with the solid phase and moving quickly through the porous media at the same rate as water. The objective of this study was to quantify and understand how aqueous {sup 14}C, as dissolved carbonate, sorbs to and desorbs from SRS sediments and cementitious materials. Laboratory studies measuring the sorption of {sup 14}C, added as a carbonate, showed unequivocally that {sup 14}C-carbonate K{sub d} values were not equal to 0 mL/g for any of the solid phases tested, but they required several months to come to steady state. After six months of contact, the apparent K{sub d} values for a clayey sediment was 3,000 mL/g, for a sandy sediment was 10 mL/g, for a 36-year-old concrete was 30,000 mL/g, and for a reducing grout was 40 mL/g. Furthermore, it was demonstrated that (ad)sorption rates were appreciably faster than desorption rates, indicating that a kinetic sorption model, as opposed to the steady-state K{sub d} model, may be a more accurate description of the {sup 14}C-carbonate sorption process. A second study demonstrated that the {sup 14}C-carbonate sorbed very strongly onto the various materials and could not be desorbed by anion exchanged with high concentrations of carbonate or nitrate. High phosphate concentrations were able to desorb {sup 14}C-carbonate from the 36-year-old concrete sample, but not the clayey sediment sample. Together these geochemistry studies support the use of non-zero K{sub d} values in risk calculations on the SRS. For performance assessment (PA) calculations, {sup 14}C would be moving with the groundwater, remaining in contact with sediment for days, not months. Therefore for purposes of SRS risk calculations, it is appropriate to select sorption values after a couple days of contact, departing from the traditional definition that states K{sub d} values reflect the system under steady state conditions. Such an “apparent K{sub d} value,” would be expected to provide a better (and more conservative) estimate of what to expect under SRS PA conditions. Based on these results, recommended apparent K{sub d} values for use in the PA are 1 mL/g for sandy sediments and 30 mL/g for clayey sediments.

Roberts, Kimberly A.; Kaplan, Daniel I.

2013-05-10T23:59:59.000Z

146

Organic geochemistry of continental margin and deep ocean sediments  

SciTech Connect (OSTI)

The objective of this research continues to be the understanding of the complex processes of fossil fuel formation and migration. DOE funded research to date has focused on case histories'' of down-hole well profiles of light hydrocarbons, pyrograms, pyrolysis-GC and -GCMS parameters, and biomarker data from wells in the Louisiana and Texas Gulf Coasts the Alaskan North Slope. In the case of the Alaskan North Slope, geological data and one-dimensional maturation modeling have been integrated in order to better constrain possible source rocks, timing, and migration routes for oil and gas generation and expulsion processes.This period, biomarker analyses and organic petrographic analyses were completed for the Ikpikpuk well. In the case of the Gulf Coast, we have obtained a one-dimensional maturation model of the Cost B-1 well in E. Cameron field of the Louisiana Gulf Coast. The completed E. Cameron data set adds to the enigma of the Gulf Coast oils found on the continental shelf of Louisiana. If significant quantities of the oil are coming from relatively organic lean Tertiary rocks, then non-conventional'' expulsion and migration mechanisms, such as gas dissolved in oil must be invoked to explain the Gulf Coast oils reservoired on the Louisiana continental shelf. We are designing and starting to assemble a hydrous pyrolysis apparatus to follow, the laboratory, rates of generation and expulsion of sediment gases. Initiation of some new research to examine {delta}{sup 13}C of individual compounds from pyrolysis is also described. We are beginning to examine both the laboratory and field data from the Gulf Coast in the context of a Global Basin Research Network (GBRN). The purpose is to better understand subsurface fluid flow processes over geologic time in sedimentary basins and their relation to resource accumulation (i.e., petroleum and metal ores). 58 refs.

Whelan, J.K.; Hunt, J.M.; Eglinton, T.; Dickinson, P.; Johnson, C.; Buxton, L.; Tarafa, M.E.

1990-08-01T23:59:59.000Z

147

Petrology and Geochemistry of Neoproterozoic Arc Plutons Beneath the Atlantic Coastal Plain, SRS, SC  

SciTech Connect (OSTI)

In this report is presented first a brief review of the regional geologic setting of the Savannah River Site, descriptions of the plutonic rock units sampled here, whole rock geochemical data on the plutonic igneous rocks, and finally, a discussion of how the crystalline basement rocks of the Savannah River Site formed and how they may correlate with other terranes exposed in the Piedmont of the Carolinas, Georgia, and Virginia.

Maryak, M.

1998-10-21T23:59:59.000Z

148

Aqueous geochemistry of the Thermopolis hydrothermal system, southern Bighorn Basin, Wyoming, U.S.A.  

DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

The Thermopolis hydrothermal system is located in the southern portion of the Bighorn Basin, in and around the town of Thermopolis, Wyoming. It is the largest hydrothermal system in Wyoming outside of Yellowstone National Park. The system includes hot springs, travertine deposits, and thermal wells; published models for the hydrothermal system propose the Owl Creek Mountains as the recharge zone, simple conductive heating at depth, and resurfacing of thermal waters up the Thermopolis Anticline. The geochemistry of the thermal waters of three active hot springs, Big Spring, White Sulfur Spring, and Teepee Fountain, is similar in composition; the geochemistry is characteristic of carbonate or carbonate-bearing siliciclastic aquifers. Previous studies of the Thermopolis hydrothermal system postulate that the thermal waters are a mixture of waters from Paleozoic formations. Major element geochemical analyses available for waters from these formations is not of sufficient quality to determine whether the thermal waters are a mixture of the Paleozoic aquifers. In the time frame of this study (1 year), the geochemistry of all three springs was constant through all four seasons, spanning spring snowmelt and recharge as well as late summer and fall dryness. This relationship is consistent with a deep source not influenced by shallow, local hydrogeology. Anomalies are evident in the historic dataset for the geochemistry of Big Spring. We speculate that anomalies occurring between 1906 and 1926 suggest mixing of source waters of Big Spring with waters from a siliciclastic formation, and that anomalies occurring between 1926 and 1933 suggest mixing with waters from a formation containing gypsum or anhydrite. Decreased concentrations measured in our study, relative to concentrations measured between 1933 and 1976, may reflect mixing of thermal waters with more dilute waters. Current data is not sufficient to rigorously test these suggestions, and events of sufficient scale taking place in these timeframes have not been identified.

Kaszuba, John P. [University of Wyoming; Sims, Kenneth W.W. [University of Wyoming; Pluda, Allison R.

2014-03-01T23:59:59.000Z

149

Manufactured caverns in carbonate rock  

DOE Patents [OSTI]

Disclosed is a process for manufacturing underground caverns suitable in one embodiment for storage of large volumes of gaseous or liquid materials. The method is an acid dissolution process that can be utilized to form caverns in carbonate rock formations. The caverns can be used to store large quantities of materials near transportation facilities or destination markets. The caverns can be used for storage of materials including fossil fuels, such as natural gas, refined products formed from fossil fuels, or waste materials, such as hazardous waste materials. The caverns can also be utilized for applications involving human access such as recreation or research. The method can also be utilized to form calcium chloride as a by-product of the cavern formation process.

Bruce, David A.; Falta, Ronald W.; Castle, James W.; Murdoch, Lawrence C.

2007-01-02T23:59:59.000Z

150

WAVE GENERATIONS FROM CONFINED EXPLOSIONS IN ROCKS  

E-Print Network [OSTI]

WAVE GENERATIONS FROM CONFINED EXPLOSIONS IN ROCKS C. L. Liu and Thomas J. Ahrens Seismological Laboratory, California Institute of Technology, Pasadena, CA 91125 In order to record P- and S-waves on the interactions between incident P- and SV-waves and free-surfaces of rocks. The relations between particle

Stewart, Sarah T.

151

Strontium isotope geochemistry of alluvial groundwater: a tracer for groundwater resources characterisation Hydrology and Earth System Sciences, 8(5), 959972 (2004) EGU  

E-Print Network [OSTI]

Strontium isotope geochemistry of alluvial groundwater: a tracer for groundwater resources characterisation 959 Hydrology and Earth System Sciences, 8(5), 959972 (2004) © EGU Strontium isotope geochemistry for corresponding author : p.negrel@brgm.fr Abstract This study presents strontium isotope and major ion data

Paris-Sud XI, Université de

152

Curriculum Vitae Professional http://geochemistry.usask.ca/bill/Curriculum%20Vitae%2010-24.htm[2/11/2009 7:14:51 PM  

E-Print Network [OSTI]

Curriculum Vitae Professional http://geochemistry.usask.ca/bill/Curriculum%20Vitae%2010-24.htm[2/11/2009 7:14:51 PM] CURRICULUM VITAE- last updated 12/14/07 Dr. WILLIAM P. PATTERSON Professor and Director, Missouri Highway and Trans. Dept., 1986-89. #12;Curriculum Vitae Professional http://geochemistry.usask.ca/bill/Curriculum

Patterson, William P.

153

FRACTURE DETECTION IN CRYSTALLINE ROCK USING ULTRASONIC SHEAR WAVES  

E-Print Network [OSTI]

the piezoelectric source plate and the rock surface. With aThe S^j sources were bonded to the rock surface with a fast-^ source plate was epoxied in position on the rock specimen.

Waters, K.H.

2011-01-01T23:59:59.000Z

154

aspo hard rock: Topics by E-print Network  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Bayesian estimation of rock mass boundary conditions with applications to the AECL underground research laboratory F. Tonon*,1 conditions for rock mass models is...

155

Carbonation Mechanism of Reservoir Rock by Supercritical Carbon...  

Open Energy Info (EERE)

from reservoir rock formation. - Task 2: Carbonation study of minerals. - Task 3: Mechanical behaviors of carbonated minerals. - Task 4: Modeling of CO2- reservoir rock...

156

Rock bed behavior and reverse thermosiphon effects  

SciTech Connect (OSTI)

Two rock beds, in the Mark Jones and Doug Balcomb houses, have been instrumented, monitored, and analyzed. Observed experimental operation has been compared with, or explained by, theoretical predictions. The latter are based on one-dimensional finite-difference computer calculation of rock bed charging and discharging, with fixed or variable inputs of air flow rate and temperature. Both rock beds exhibit appreciable loss of stored heat caused by lack of backdraft dampers or incomplete closure of such dampers. These topics are discussed, and some improvements that might be made in future installations are noted.

Perry, J.E.

1980-01-01T23:59:59.000Z

157

Mineralogy and Geochemistry of Soils of Ultramafic Origin from the Great Dyke, Zimbabwe and Gillespie County, Texas  

E-Print Network [OSTI]

Ni ..................................................................................... 18 Occurrence of Cr (VI) in soils ............................................... 19 Mineral compositions of soils and parent rocks..., silt and rock fragments ........................ 95 Chlorite particles ............................................................. 95 Talc particles...

Bangira, Courage

2012-02-14T23:59:59.000Z

158

Study of Chelyabinsk LL5 meteorite fragment with a light lithology and its fusion crust using Mössbauer spectroscopy with a high velocity resolution  

SciTech Connect (OSTI)

Study of Chelyabinsk LL5 ordinary chondrite fragment with a light lithology and its fusion crust, fallen on February 15, 2013, in Russian Federation, was carried out using Mössbauer spectroscopy with a high velocity resolution. The Mössbauer spectra of the internal matter and fusion crust were fitted and all components were related to iron-bearing phases such as olivine, pyroxene, troilite, Fe-Ni-Co alloy, and chromite in the internal matter and olivine, pyroxene, troilite, Fe-Ni-Co alloy, and magnesioferrite in the fusion crust. A comparison of the content of different phases in the internal matter and in the fusion crust of this fragment showed that ferric compounds resulted from olivine, pyroxene, and troilite combustion in the atmosphere.

Maksimova, Alevtina A.; Petrova, Evgeniya V.; Grokhovsky, Victor I. [Department of Physical Techniques and Devices for Quality Control, Institute of Physics and Technology, Ural Federal University, Ekaterinburg, 620002 (Russian Federation); Oshtrakh, Michael I., E-mail: oshtrakh@gmail.com; Semionkin, Vladimir A. [Department of Physical Techniques and Devices for Quality Control, Institute of Physics and Technology, Ural Federal University, Ekaterinburg, 620002, Russian Federation and Department of Experimental Physics, Institute of Physics and Technology, Ura (Russian Federation)

2014-10-27T23:59:59.000Z

159

Geochemistry, geochronology, and cathodoluminescence imagery of the Salihli and Turgutlu granites (central Menderes Massif, western Turkey): Implications for  

E-Print Network [OSTI]

Geochemistry, geochronology, and cathodoluminescence imagery of the Salihli and Turgutlu granites-type, peraluminous granites (Salihli and Turgutlu) that intrude the Alasehir detachment which bounds the northern Mediterranean floor along the Hellenic trench. In situ Th­Pb ion microprobe monazite ages from the granites

160

Temporal trends of pollution Pb and other metals in east-central Baf n Island inferred from lake sediment geochemistry  

E-Print Network [OSTI]

pollution Lead stable isotopes Paleolimnology Arctic lakes Sediment geochemistry Atmospheric deposition long-term histories of atmospheric Pb pollution (Brännvall et al., 2001). In addition, stable isotopesTemporal trends of pollution Pb and other metals in east-central Baf n Island inferred from lake

Wolfe, Alexander P.

Note: This page contains sample records for the topic "rock lithology geochemistry" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Temporal trends of pollution Pb and other metals in east-central Baffin Island inferred from lake sediment geochemistry  

E-Print Network [OSTI]

pollution Lead stable isotopes Paleolimnology Arctic lakes Sediment geochemistry Atmospheric deposition long-term histories of atmospheric Pb pollution (Brännvall et al., 2001). In addition, stable isotopesTemporal trends of pollution Pb and other metals in east-central Baffin Island inferred from lake

Briner, Jason P.

162

Deep drilling technology for hot crystalline rock  

SciTech Connect (OSTI)

The development of Hot Dry Rock (HDR) geothermal systems at the Fenton Hill, New Mexico site has required the drilling of four deep boreholes into hot, Precambrian granitic and metamorphic rocks. Thermal gradient holes, four observation wells 200 m (600 ft) deep, and an exploration core hole 800 m (2400 ft) deep guided the siting of the four deep boreholes. Results derived from the exploration core hole, GT-1 (Granite Test No. 1), were especially important in providing core from the granitic rock, and establishing the conductive thermal gradient and heat flow for the granitic basement rocks. Essential stratigraphic data and lost drilling-fluid zones were identified for the volcanic and sedimentary rocks above the contact with the crystalline basement. Using this information drilling strategies and well designs were then devised for the planning of the deeper wells. The four deep wells were drilled in pairs, the shallowest were planned and drilled to depths of 3 km in 1975 at a bottom-hole temperature of nearly 200/sup 0/C. These boreholes were followed by a pair of wells, completed in 1981, the deepest of which penetrated the Precambrian basement to a vertical depth of 4.39 km at a temperature of 320/sup 0/C.

Rowley, J.C.

1984-01-01T23:59:59.000Z

163

Oilfield rock bits: Are they a commodity  

SciTech Connect (OSTI)

This paper discusses the quality of various types of rock drill bits and evaluates cost of these bits against service and performance to determine if bits should be viewed as a commodity when drilling a production or exploration well. Continuing advancements in materials technology, machining capabilities, hydraulics arrangements, bearing configuration, seal technology and cutter design continue to push the performance curve for oilfield rock bits. However, some very important advancements are patented, proprietary features of individual manufacturers. This paper reviews some of these design and performance features to help determine if they are worth the extra investment based on actual field drilling experience.

Caldwell, R.

1994-05-01T23:59:59.000Z

164

Metamorphic Rocks, Processes, and Resources Metamorphic rocks are rocks changed from one form to another by intense heat, intense pressure,  

E-Print Network [OSTI]

important ­ Rising temperature causes water to be released from unstable minerals ­ Hot water very reactive refers to the temperature and pressure under which a rock was metamorphosed, considered low grade or high ­ If range exceeded, new mineral structures result ­ If temperature gets high enough, melting will occur

Li, X. Rong

165

Lithology and cyclicity in the deposition of the Middle Ordovician McKee Sand member of the Tulip Creek Formation (Simpson Group) in the Tobosa Basin of Southeast New Mexico and West Texas  

E-Print Network [OSTI]

The lower Paleozoic rocks deposited on the inner craton of North America are characterized by thick sections of carbonate rocks separated by thin units of sandstones and shales. The origins of these sandstones are poorly understood...

Bosco, Michael John

1999-01-01T23:59:59.000Z

166

Radiocarbon dating of ancient rock paintings  

SciTech Connect (OSTI)

This report presents progress made on a technique for {sup 14}C dating pictographs. A low-temperature oxygen plasma is used coupled with high-vacuum technologies to selectively remove C-containing material in the paints without contamination from inorganic carbon from rock substrates or accretions.

Ilger, W.A.; Hyman, M.; Rowe, M.W. [Texas A and M Univ., College Station, TX (United States). Dept. of Chemistry; Southon, J. [Lawrence Livermore National Lab., CA (United States)

1995-06-20T23:59:59.000Z

167

Storage capacity in hot dry rock reservoirs  

DOE Patents [OSTI]

A method is described for extracting thermal energy, in a cyclic manner, from geologic strata which may be termed hot dry rock. A reservoir comprised of hot fractured rock is established and water or other liquid is passed through the reservoir. The water is heated by the hot rock, recovered from the reservoir, cooled by extraction of heat by means of heat exchange apparatus on the surface, and then re-injected into the reservoir to be heated again. Water is added to the reservoir by means of an injection well and recovered from the reservoir by means of a production well. Water is continuously provided to the reservoir and continuously withdrawn from the reservoir at two different flow rates, a base rate and a peak rate. Increasing water flow from the base rate to the peak rate is accomplished by rapidly decreasing backpressure at the outlet of the production well in order to meet periodic needs for amounts of thermal energy greater than a baseload amount, such as to generate additional electric power to meet peak demands. The rate of flow of water provided to the hot dry rock reservoir is maintained at a value effective to prevent depletion of the liquid inventory of the reservoir. 4 figs.

Brown, D.W.

1997-11-11T23:59:59.000Z

168

Transfer of hot dry rock technology  

SciTech Connect (OSTI)

The Hot Dry Rock Geothermal Energy Development Program has focused worldwide attention on the facts that natural heat in the upper part of the earth's crust is an essentially inexhaustible energy resource which is accessible almost everywhere, and that practical means now exist to extract useful heat from the hot rock and bring it to the earth's surface for beneficial use. The Hot Dry Rock Program has successfully constructed and operated a prototype hot, dry rock energy system that produced heat at the temperatures and rates required for large-scale space heating and many other direct uses of heat. The Program is now in the final stages of constructing a larger, hotter system potentially capable of satisfying the energy requirements of a small, commercial, electrical-generating power plant. To create and understand the behavior of such system, it has been necessary to develop or support the development of a wide variety of equipment, instruments, techniques, and analyses. Much of this innovative technology has already been transferred to the private sector and to other research and development programs, and more is continuously being made available as its usefulness is demonstrated. This report describes some of these developments and indicates where this new technology is being used or can be useful to industry, engineering, and science.

Smith, M.C.

1985-11-01T23:59:59.000Z

169

Life cycle assessment of a rock crusher  

SciTech Connect (OSTI)

Nordberg, Inc., a capital equipment manufacturer, performed a Life Cycle Assessment study on its rock crusher to aid in making decisions on product design and energy improvements. Life Cycle Assessment (LCA) is a relatively new cutting edge environmental tool recently standardized by ISO that provides quantitative environmental and energy data on products or processes. This paper commences with a brief introduction to LCA and presents the system boundaries, modeling and assumptions for the rock crusher study. System boundaries include all life major cycle stages except manufacturing and assembly of the crusher. Results of the LCA show that over 99% of most of the flows into and out of the system may be attributed to the use phase of the rock crusher. Within the use phase itself, over 95% of each environmental inflow and outflow (with some exceptions) are attributed to electricity consumption, and not the replacement of spares/wears or lubricating oil over the lifetime of the crusher. Results tables and charts present selected environmental flows, including CO{sub 2} NOx, SOx, particulate matter, and energy consumption, for each of the rock crusher life cycle stages and the use phase. This paper aims to demonstrate the benefits of adopting a rigorous scientific approach to assess energy and environmental impacts over the life cycle of capital equipment. Nordberg has used these results to enhance its engineering efforts toward developing an even more energy efficient machine to further progress its vision of providing economic solutions to its customers by reducing the crusher operating (mainly electricity) costs.

Landfield, A.H.; Karra, V.

1999-07-01T23:59:59.000Z

170

Storage capacity in hot dry rock reservoirs  

DOE Patents [OSTI]

A method of extracting thermal energy, in a cyclic manner, from geologic strata which may be termed hot dry rock. A reservoir comprised of hot fractured rock is established and water or other liquid is passed through the reservoir. The water is heated by the hot rock, recovered from the reservoir, cooled by extraction of heat by means of heat exchange apparatus on the surface, and then re-injected into the reservoir to be heated again. Water is added to the reservoir by means of an injection well and recovered from the reservoir by means of a production well. Water is continuously provided to the reservoir and continuously withdrawn from the reservoir at two different flow rates, a base rate and a peak rate. Increasing water flow from the base rate to the peak rate is accomplished by rapidly decreasing backpressure at the outlet of the production well in order to meet periodic needs for amounts of thermal energy greater than a baseload amount, such as to generate additional electric power to meet peak demands. The rate of flow of water provided to the hot dry rock reservoir is maintained at a value effective to prevent depletion of the liquid

Brown, Donald W. (Los Alamos, NM)

1997-01-01T23:59:59.000Z

171

Hot-dry-rock geothermal resource 1980  

SciTech Connect (OSTI)

The work performed on hot dry rock (HDR) geothermal resource evaluation, site characterization, and geophysical exploration techniques is summarized. The work was done by region (Far West, Pacific Northwest, Southwest, Rocky Mountain States, Midcontinent, and Eastern) and limited to the conterminous US.

Heiken, G.; Goff, F.; Cremer, G. (ed.)

1982-04-01T23:59:59.000Z

172

Esimation of field-scale thermal conductivities of unsaturated rocks from in-situ temperature data  

E-Print Network [OSTI]

vicinity of the heat source, and rock temperature exceededand the dry rock near the heat source. The other differencesources, heat transfer takes place through the wet rock (see

Mukhopadhyay, Sumit; Tsang, Yvonne W.; Birkholzer, Jens T.

2008-01-01T23:59:59.000Z

173

Seismic and Acoustic Investigations of Rock Fall Initiation, Processes, and Mechanics  

E-Print Network [OSTI]

systems  and  rock  fall  source  and  impact  areas,  it  meters  from  a  rock  fall  source  area.   The   success  possible  to  the  rock  fall  source  areas,   spacing  

Zimmer, Valerie Louise

2011-01-01T23:59:59.000Z

174

E-Print Network 3.0 - archean metavolcanic rocks Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

(Krner, 1985). However, the tectonic setting and age of metavolcanic rocks in Egypt are poorly... metavolcanic rocks. Metavolcanic rocks in Egypt were described by...

175

Site Name: Granite Rock Date: 2005-2007, 2009  

E-Print Network [OSTI]

Site Name: Granite Rock Date: 2005-2007, 2009 Partners/Collaborators: CC&R Description: Work-native plants identified on Granite Rock site: Bristly Ox Tongue Picris echioides Bull Thistle Cirsium vulgare

McPhee-Shaw, Erika

176

Modeling of crack initiation, propagation and coalescence in rocks  

E-Print Network [OSTI]

Natural or artificial fracturing of rock plays a very important role in geologic processes and for engineered structures in and on rock. Fracturing is associated with crack initiation, propagation and coalescence, which ...

Gonçalves da Silva, Bruno Miguel

2009-01-01T23:59:59.000Z

177

Inversion of seismic attributes for petrophysical parameters and rock facies   

E-Print Network [OSTI]

Prediction of rock and fluid properties such as porosity, clay content, and water saturation is essential for exploration and development of hydrocarbon reservoirs. Rock and fluid property maps obtained from such predictions ...

Shahraeeni, Mohammad Sadegh

2011-01-01T23:59:59.000Z

178

Overview of conservation treatments applied to rock glyph archaeological sites  

E-Print Network [OSTI]

Rock glyphs, ubiquitously referred to as rock art, are often the most highly visible components of archaeological sites. Such artifacts, therefore, are most prone to deterioration and degradation from human caused and natural elements...

Dandridge, Debra E

2000-01-01T23:59:59.000Z

179

Zeolitization Of Intracaldera Sediments And Rhyolitic Rocks In...  

Open Energy Info (EERE)

Rocks In The 1.25 Ma Lake Of Valles Caldera, New Mexico, USA Abstract Quantitative X-ray diffraction analysis of about 80 rhyolite and associated lacustrine rocks has...

180

Zeolitization Of Intracaldera Sediments And Rhyolitic Rocks In...  

Open Energy Info (EERE)

Rocks In The 1.25 Ma Lake Of Valles Caldera, New Mexico, Usa Abstract Quantitative X-ray diffraction analysis of about 80 rhyolite and associated lacustrine rocks has...

Note: This page contains sample records for the topic "rock lithology geochemistry" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Geochemistry and materials studies in support of the Magma Energy Extraction Program  

SciTech Connect (OSTI)

Geochemistry and materials studies are being performed in support of the Magma Energy Extraction Program. The scope of the studies is dictated by the sites under consideration and the designs of the drilling and energy extraction systems. The work has been largely restricted to characterizing magmatic environments at sites of interest and testing engineering materials in laboratory simulated rhyolite magmatic environments. The behavior of 17 commercially available materials has been examined at magmatic conditions. Analysis of reaction products reveal that oxidation, and not sulfidation, is the main corrosion problem for most alloys in rhyolite, and that reaction with other magmatic components is limited. Considerations of corrosion resistance, high-temperature strength, and cost indicate nickel-base superalloys offer the most promise as candidates for use in rhyolitic magma.

Westrich, H.R.; Weirick, L.J.

1986-01-01T23:59:59.000Z

182

The lithology, environment of deposition, and diagenesis of the Queen Formation at McFarland, McFarland North, and Magutex Queen Fields, Andrews County, Texas  

E-Print Network [OSTI]

of the samples was examined and measured with a petrographic microscope. The detrital and authigenic minerals and visual porosity of 125 thin sections were counted across bedding using the line method, and point-counting proceeded until 100 monocrystalline... quartz grains were counted per section. The detrital grains were classified as monocrystalline quartz, polycrystalline quartz, feldspar, rock fragments, other grains, and matrix. Cements and porosity were also counted. Each component part counted...

Holley, Carolayne Elizabeth

1988-01-01T23:59:59.000Z

183

Isotopic Analysis- Rock At Valles Caldera - Sulphur Springs Geothermal...  

Open Energy Info (EERE)

navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Isotopic Analysis- Rock At Valles Caldera - Sulphur Springs Geothermal Area (Phillips, 2004)...

184

Isotopic Analysis- Rock At Valles Caldera - Sulphur Springs Geothermal...  

Open Energy Info (EERE)

navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Isotopic Analysis- Rock At Valles Caldera - Sulphur Springs Geothermal Area (Ito & Tanaka, 1995)...

185

Isotopic Analysis- Rock At Valles Caldera - Sulphur Springs Area...  

Open Energy Info (EERE)

navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Isotopic Analysis- Rock At Valles Caldera - Sulphur Springs Area (Ito & Tanaka, 1995) Exploration...

186

VancouverParksville White RockNew Westminster  

E-Print Network [OSTI]

Courtenay VancouverParksville Abbotsford White RockNew Westminster Squamish Chilliwack Port McNeill Powell

187

REDUCING RISK IN LOW-PERMEABILITY GAS FORMATIONS: UNDERSTANDING THE ROCK/FLUID CHARACTERISTICS OF ROCKY MOUNTAIN LARAMIDE BASINS  

SciTech Connect (OSTI)

An anomalous velocity model was constructed for the Wind River Basin (WRB) based on {approx}2000 mi of 2-D seismic data and 175 sonic logs, for a total of 132,000 velocity/depth profiles. Ten cross sections were constructed through the model coincident with known gas fields. In each cross section, an intense, anomalously slow velocity domain coincided with the gas-productive rock/fluid interval. The anomalous velocity model: (1) Easily isolates gas-charged rock/fluid systems characterized by anomalously slow velocities and water-rich rock/fluid systems characterized by normal velocities; and (2) Delineates the regional velocity inversion surface, which is characterized by steepening of the Ro/depth gradient, a significant increase in capillary displacement pressure, a significant change in formation water composition, and acceleration of the reaction rate of smectite-to-illite diagenesis in mixed-layer clays. Gas chimneys are observed as topographic highs on the regional velocity inversion surface. Beneath the surface are significant fluid-flow compartments, which have a gas-charge in the fluid phase and are isolated from meteoric water recharge. Water-rich domains may occur within regional gas-charged compartments, but are not being recharged from the meteoric water system (i.e., trapped water). The WRB is divided into at least two regionally prominent fluid-flow compartments separated by the velocity inversion surface: a water-dominated upper compartment likely under strong meteoric water drive and a gas-charged, anomalously pressured lower compartment. Judging from cross sections, numerous gas-charged subcompartments occur within the regional compartment. Their geometries and boundaries are controlled by faults and low-permeability rocks. Commercial gas production results when a reservoir interval characterized by enhanced porosity/permeability intersects one of these gas-charged subcompartments. The rock/fluid characteristics of the Rocky Mountain Laramide Basins (RMLB) described in this work determine the potential for significant, relatively unconventional, so-called ''basin-center'' hydrocarbon accumulations. If such accumulations occur, they will be characterized by the following critical attributes: (1) Location beneath a regional velocity inversion surface that typically is associated with low-permeability lithologies; (2) Anomalous pressure, both over- and underpressure, and when, less commonly, they appear to be normally pressured, they are not in contact with the meteoric water system; (3) A significant gas component in the regional multiphase fluid-flow system (water-gas-oil) that occurs beneath the regional velocity inversion surface; (4) Domains of intense gas charge (i.e., high gas saturation) within the regional multiphase fluid-flow system; (5) Compartmentalization of the rock/fluid system to a far greater extent beneath the regional velocity inversion surface than above it (i.e., convection of fluids across the regional velocity inversion surface is reduced or eliminated depending on the nature of the capillary properties of the low-permeability rocks associated with the inversion surface); (6) Commercial gas accumulations occurring at the intersection of reservoir intervals characterized by enhanced porosity and permeability and gas-charged domains; (7) Productive intersections of reservoir intervals and gas-charged domains, which are controlled by the structural, stratigraphic, and diagenetic elements affecting the rock/fluid system; and (8) No apparent meteoric water connection with the gas accumulations and gas columns up to several thousand feet in height. Because some of these critical attributes are not associated with conventional hydrocarbon accumulations, a new set of diagnostic tools are required in order to explore for and exploit these types of gas prospects efficiently and effectively. Some of these new diagnostic tools have been discussed in this report; other have been described elsewhere. In order to maximize risk reduction, it is recommended when exploring for these types of gas accu

Ronald C. Surdam

2003-12-29T23:59:59.000Z

188

Sigma Xi, The Scientific Research Society Rock Varnish  

E-Print Network [OSTI]

Sigma Xi, The Scientific Research Society Rock Varnish Author(s): Ronald I. Dorn Source: American;Rock Varnish Over thousandsofyears,a thincoatingofclay,cementedtorocksbymanganese and iron that appeared "smooth, black, and as ifcoated with plumbago." Indian legends explained that these rocks had been

Dorn, Ron

189

Understanding Through-Composition in Post-Rock, Math-Metal, and other Post-Millennial Rock Genres  

E-Print Network [OSTI]

Since the dawn of experimental rock’s second coming in the new millennium, experimental artists have begun distancing themselves from Top-40 artists through formal structures that eschew recapitulatory verse/chorus ...

Osborn, Brad

2011-01-01T23:59:59.000Z

190

A Phased Array Approach to Rock Blasting  

SciTech Connect (OSTI)

A series of laboratory-scale simultaneous two-hole shots was performed in a rock simulant (mortar) to record the shock wave interference patterns produced in the material. The purpose of the project as a whole was to evaluate the usefulness of phased array techniques of blast design, using new high-precision delay technology. Despite high-speed photography, however, we were unable to detect the passage of the shock waves through the samples to determine how well they matched the expected interaction geometry. The follow-up mine-scale tests were therefore not conducted. Nevertheless, pattern analysis of the vectors that would be formed by positive interference of the shockwaves from multiple charges in an ideal continuous, homogeneous, isotropic medium indicate the potential for powerful control of blast design, given precise characterization of the target rock mass.

Leslie Gertsch; Jason Baird

2006-07-01T23:59:59.000Z

191

GEOL 103 Writing Assignment 2. Rock Cycle 1. How do each of the three major rock types form? Include the source of the material and the rock-forming  

E-Print Network [OSTI]

? Include the source of the material and the rock-forming process. · Igneous rocks form from the hiGEOL 103 Writing Assignment 2. Rock Cycle 1. How do each of the three major rock types form-temperature (650-1200 °C) melting of other rocks (ign. mmorphic, or sed), following by cooling, possibly

Kirby, Carl S.

192

LRH: WETLANDS, Vol. 22, No. 3, 2002 RRH: Barbiro et al., GEOCHEMISTRY OF WATER AND GROUND WATER IN  

E-Print Network [OSTI]

LRH: WETLANDS, Vol. 22, No. 3, 2002 RRH: Barbiéro et al., GEOCHEMISTRY OF WATER AND GROUND WATER of the Nhecolândia, a sub-region of the Pantanal wetland in Brazil, is the presence of both saline and freshwater manuscript, published in "Wetlands 22, 3 (2002) 528-540" DOI : 10.1672/0277-5212(2002)022[0528:GOWAGW]2.0.CO

Paris-Sud XI, Université de

193

Low Pore Connectivity in Natural Rock  

SciTech Connect (OSTI)

As repositories for CO? and radioactive waste, as oil and gas reservoirs, and as contaminated sites needing remediation, rock formations play a central role in energy and environmental management. The connectivity of the rock's porespace strongly affects fluid flow and solute transport. This work examines pore connectivity and its implications for fluid flow and chemical transport. Three experimental approaches (imbibition, tracer concentration profiles, and imaging) were used in combination with network modeling. In the imbibition results, three types of imbibition slope [log (cumulative imbibition) vs. log (imbibition time)] were found: the classical 0.5, plus 0.26, and 0.26 transitioning to 0.5. The imbibition slope of 0.26 seen in Indiana sandstone, metagraywacke, and Barnett shale indicates low pore connectivity, in contrast to the slope of 0.5 seen in the well-connected Berea sandstone. In the tracer profile work, rocks exhibited different distances to the plateau porosity, consistent with the pore connectivity from the imbibition tests. Injection of a molten metal into connected pore spaces, followed by 2-D imaging of the solidified alloy in polished thin sections, allowed direct assessment of pore structure and lateral connection in the rock samples. Pore-scale network modeling gave results consistent with measurements, confirming pore connectivity as the underlying cause of both anomalous behaviors: imbibition slope not having the classical value of 0.5, and accessible porosity being a function of distance from the edge. A poorly connected porespace will exhibit anomalous behavior in fluid flow and chemical transport, such as a lower imbibition slope (in air–water system) and diffusion rate than expected from classical behavior.

Hu, Qinhong; Ewing, Robert P.; Dultz, Stefan

2012-05-15T23:59:59.000Z

194

Rock Chalk Report, May 7, 2014  

E-Print Network [OSTI]

Trouble seeing something? view it online or To unsubscribe, click here or send an email to: unsubscribe- 87@pacmail.em.marketinghq.net. May 7, 2014 Rock Chalk Report The Official Newsletter of Kansas Athletics... an email to: unsubscribe-87@pacmail.em.marketinghq.net. © 2014, University of Kansas. The team names, logos and uniform designs are registered trademarks of the teams indicated. No logos, photographs or graphics in this email may be reproduced without...

2014-05-07T23:59:59.000Z

195

Rock, Wisconsin: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to: navigation, searchVirginia BlueRiverwoods,Rock Sampling Details Activities (18)

196

Hydrothermally Deposited Rock | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio:GreerHiCalifornia: Energythe Second Workshop onDeposited Rock Jump to:

197

Trace-element geochemistry of gradient hole cuttings: Beowawe geothermal area, Nevada  

SciTech Connect (OSTI)

Multielement geochemical analysis of drill cuttings from 26 shallow temperature-gradient drill holes and of surface rock samples reveals trace element distributions developed within these rocks as a consequence of chemical interaction with thermal fluid within the Beowawe geothermal area. The presently discharging thermal fluids are dilute in all components except silica, suggesting that the residence time of these fluids within the thermal reservoir has been short and that chemical interaction with the reservoir rock minimal. Interaction between these dilute fluids and rocks within the system has resulted in the development of weak chemical signatures. The absence of stronger signatures in rocks associated with the present system suggests that fluids have had a similar dilute chemistry for some time. The spatial distribution of elements commonly associated with geothermal systems, such as As, Hg and Li, and neither laterally nor vertically continuous. This suggests that there is not now, nor has there been in the past, pervasive movement of thermal fluid throughout the sampled rock but, instead, that isolated chemical anomalies represent distinct fluid-flow chanels. Discontinuous As, Li and Hg concentrations near White Canyon to the east of the presently active surface features record the effects of chemical interaction of rocks with fluids chemically unlike the presently discharging fluids. The observed trace element distributions suggest that historically the Beowawe area has been the center of more than one hydrothermal event and that the near-surface portion of the present hot-water geothermal system is controlled by a single source fracture, the Malpais Fault, or an intersection of faults at the sinter terrace.

Christensen, O.D.

1980-12-01T23:59:59.000Z

198

Permeability of natural rock salt from the Waste Isolation Pilot Plant (WIPP) during damage evolution and healing  

SciTech Connect (OSTI)

The US Department of Energy has developed the Waste Isolation Pilot Plant (WIPP) in the bedded salt of southeastern New Mexico to demonstrate the safe disposal of radioactive transuranic wastes. Four vertical shafts provide access to the underground workings located at a depth of about 660 meters. These shafts connect the underground facility to the surface and potentially provide communication between lithologic units, so they will be sealed to limit both the release of hazardous waste from and fluid flow into the repository. The seal design must consider the potential for fluid flow through a disturbed rock zone (DRZ) that develops in the salt near the shafts. The DRZ, which forms initially during excavation and then evolves with time, is expected to have higher permeability than the native salt. The closure of the shaft openings (i.e., through salt creep) will compress the seals, thereby inducing a compressive back-stress on the DRZ. This back-stress is expected to arrest the evolution of the DRZ, and with time will promote healing of damage. This paper presents laboratory data from tertiary creep and hydrostatic compression tests designed to characterize damage evolution and healing in WIPP salt. Healing is quantified in terms of permanent reduction in permeability, and the data are used to estimate healing times based on considerations of first-order kinetics.

Pfeifle, T.W. [RE/SPEC Inc., Rapid City, SD (United States); Hurtado, L.D. [Sandia National Lab., Albuquerque, NM (United States)

1998-06-01T23:59:59.000Z

199

Hot Dry Rock Geothermal Energy Development Program  

SciTech Connect (OSTI)

During Fiscal Year 1987, emphasis in the Hot Dry Rock Geothermal Energy Development Program was on preparations for a Long-Term Flow Test'' of the Phase II'' or Engineering'' hot dry rock energy system at Fenton Hill, New Mexico. A successful 30-day flow test of the system during FY86 indicated that such a system would produce heat at a temperature and rate that could support operation of a commercial electrical power plant. However, it did not answer certain questions basic to the economics of long-term operation, including the rate of depletion of the thermal reservoir, the rate of water loss from the system, and the possibility of operating problems during extended continuous operation. Preparations for a one-year flow test of the system to answer these and more fundamental questions concerning hot dry rock systems were made in FY87: design of the required surface facilities; procurement and installation of some of their components; development and testing of slimline logging tools for use through small-diameter production tubing; research on temperature-sensitive reactive chemical tracers to monitor thermal depletion of the reservoir; and computer simulations of the 30-day test, extended to modeling the planned Long-Term Flow Test. 45 refs., 34 figs., 5 tabs.

Smith, M.C.; Hendron, R.H.; Murphy, H.D.; Wilson, M.G.

1989-12-01T23:59:59.000Z

200

Gage for measuring displacements in rock samples  

DOE Patents [OSTI]

A gage for measuring diametral displacement within a rock sample for use in a rock mechanics laboratory and in the field, comprises a support ring housing a linear variable differential transformer, a mounting screw, and a leaf spring. The mounting screw is adjustable and defines a first point of contact with the rock sample. The leaf spring has opposite ends fixed to the inner periphery of the mounting ring. An intermediate portion of the leaf spring projecting radially inward from the ring is formed with a dimple defining a second point of contact with the sample. The first and second points of contact are diametrically opposed to each other. The LVDT is mounted in the ring with its axis parallel to the line of measurement and its core rod received in the dimple of the leaf spring. Any change in the length of the line between the first and second support points is directly communicated to the LVDT. The leaf spring is rigid to completely support lateral forces so that the LVDT is free of all load for improved precision.

Holcomb, David J. (Albuquerque, NM); McNamee, Michael J. (Albuquerque, NM)

1986-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rock lithology geochemistry" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Exploration Geochemistry  

E-Print Network [OSTI]

and environmental constraints. eter Winterburn #12;M D R U Societal demands for mineral resources continue to spur and restrictive policy changes. The discovery of new mineral resources requires increasing risk, increasing costs ­ Global Exploration for Vale. His research interests centre on innovation of cost-effective, robust

Michelson, David G.

202

Seismic and Acoustic Investigations of Rock Fall Initiation, Processes, and Mechanics  

E-Print Network [OSTI]

Happy  Isles  and  the  1999  Glacier  Point  rock  falls,  there   was   an   attempt   to   monitor   rock   fall   in   Yosemite   Valley  

Zimmer, Valerie Louise

2011-01-01T23:59:59.000Z

203

ROCK PROPERTIES MODEL ANALYSIS MODEL REPORT  

SciTech Connect (OSTI)

The purpose of this Analysis and Model Report (AMR) is to document Rock Properties Model (RPM) 3.1 with regard to input data, model methods, assumptions, uncertainties and limitations of model results, and qualification status of the model. The report also documents the differences between the current and previous versions and validation of the model. The rock properties models are intended principally for use as input to numerical physical-process modeling, such as of ground-water flow and/or radionuclide transport. The constraints, caveats, and limitations associated with this model are discussed in the appropriate text sections that follow. This work was conducted in accordance with the following planning documents: WA-0344, ''3-D Rock Properties Modeling for FY 1998'' (SNL 1997, WA-0358), ''3-D Rock Properties Modeling for FY 1999'' (SNL 1999), and the technical development plan, Rock Properties Model Version 3.1, (CRWMS M&O 1999c). The Interim Change Notice (ICNs), ICN 02 and ICN 03, of this AMR were prepared as part of activities being conducted under the Technical Work Plan, TWP-NBS-GS-000003, ''Technical Work Plan for the Integrated Site Model, Process Model Report, Revision 01'' (CRWMS M&O 2000b). The purpose of ICN 03 is to record changes in data input status due to data qualification and verification activities. These work plans describe the scope, objectives, tasks, methodology, and implementing procedures for model construction. The constraints, caveats, and limitations associated with this model are discussed in the appropriate text sections that follow. The work scope for this activity consists of the following: (1) Conversion of the input data (laboratory measured porosity data, x-ray diffraction mineralogy, petrophysical calculations of bound water, and petrophysical calculations of porosity) for each borehole into stratigraphic coordinates; (2) Re-sampling and merging of data sets; (3) Development of geostatistical simulations of porosity; (4) Generation of derivative property models via linear coregionalization with porosity; (5) Post-processing of the simulated models to impart desired secondary geologic attributes and to create summary and uncertainty models; and (6) Conversion of the models into real-world coordinates. The conversion to real world coordinates is performed as part of the integration of the RPM into the Integrated Site Model (ISM) 3.1; this activity is not part of the current analysis. The ISM provides a consistent volumetric portrayal of the rock layers, rock properties, and mineralogy of the Yucca Mountain site and consists of three components: (1) Geologic Framework Model (GFM); (2) RPM, which is the subject of this AMR; and (3) Mineralogic Model. The interrelationship of the three components of the ISM and their interface with downstream uses are illustrated in Figure 1. Figure 2 shows the geographic boundaries of the RPM and other component models of the ISM.

Clinton Lum

2002-02-04T23:59:59.000Z

204

Geochemistry of Natural Components in the Near-Field Environment, Yucca Mountain, Nevada  

SciTech Connect (OSTI)

The natural near-field environment in and around the emplacement drifts of the proposed nuclear waste repository at Yucca Mountain, Nevada, includes the host rock, dust, seepage, and pore water. The chemical compositions of these components have been determined for assessing possible chemical and mineralogical reactions that may occur after nuclear waste is emplaced. The rock hosting the proposed repository is relatively uniform as shown by a mean coefficient of variation (CV) of 9 percent for major elements. In contrast, compositional variations of dust (bulk and water-soluble fractions), pore water, and seepage are large with mean CVs ranging from 28 to 64 percent. (authors)

Peterman, Zell E. [Yucca Mountain Project Branch, U.S. Geological Survey, MS 963 Box 25046 Denver Federal Center, 6th and Kipling Sts., Denver, CO, 80225 (United States); Oliver, Thomas A. [c/o U.S. Geological Survey, S.M. Stoller Corporation, MS 421 Box 25046 Denver Federal Center, Denver, CO, 80225 (United States)

2007-07-01T23:59:59.000Z

205

Hot dry rock venture risks investigation:  

SciTech Connect (OSTI)

This study assesses a promising resource in central Utah as the potential site of a future commerical hot dry rock (HDR) facility for generating electricity. The results indicate that, if the HDR reservoir productivity equals expectations based on preliminary results from research projects to date, a 50 MWe HDR power facility at Roosevelt Hot Springs could generate power at cost competitive with coal-fired plants. However, it is imperative that the assumed productivity be demonstrated before funds are committed for a commercial facility. 72 refs., 39 figs., 38 tabs.

Not Available

1988-01-01T23:59:59.000Z

206

Rim Rock Wind Farm | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revisionEnvReviewNonInvasiveExplorationUT-g Grant ofRichardton Abbey Wind Farm Jump to:SectorRim Rock Wind Farm

207

Rock Lab Analysis | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to: navigation, searchVirginia BlueRiverwoods, Illinois:239178°,is a927003°,AtIsland,Rock

208

Sandia National Laboratories: Crystalline Rock Repository Developments  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -the Mid-Infrared0EnergySandia Involves Wind-FarmCool Earth SolarCrystalline Rock

209

Rock mechanics contributions from defense programs  

SciTech Connect (OSTI)

An attempt is made at illustrating the many contributions to rock mechanics from US defense programs, over the past 30-plus years. Large advances have been achieved in the technology-base area covering instrumentation, material properties, physical modeling, constitutive relations and numerical simulations. In the applications field, much progress has been made in understanding and being able to predict rock mass behavior related to underground explosions, cratering, projectile penetration, and defense nuclear waste storage. All these activities stand on their own merit as benefits to national security. But their impact is even broader, because they have found widespread applications in the non-defense sector; to name a few: the prediction of the response of underground structures to major earthquakes, the physics of the earth`s interior at great depths, instrumentation for monitoring mine blasting, thermo-mechanical instrumentation useful for civilian nuclear waste repositories, dynamic properties of earthquake faults, and transient large-strain numerical modeling of geological processes, such as diapirism. There is not pretense that this summary is exhaustive. It is meant to highlight success stories representative of DOE and DOD geotechnical activities, and to point to remaining challenges.

Heuze, F.E.

1992-02-01T23:59:59.000Z

210

Rock types, pore types, and hydrocarbon exploration  

SciTech Connect (OSTI)

A proposed exploration-oriented method of classifying porosity in sedimentary rocks is based on microscopic examination cores or cuttings. Factors include geometry, size, abundance, and connectivity of the pores. The porosity classification is predictive of key petrophysical characteristics: porosity-permeability relationships, capillary pressures, and (less certainly) relative permeabilities. For instance, intercrystalline macroporosity typically is associated with high permeability for a given porosity, low capillarity, and favorable relative permeabilities. This is found to be true whether this porosity type occurs in a sucrosic dolomite or in a sandstone with pervasive quartz overgrowths. This predictive method was applied in three Rocky Mountain oil plays. Subtle pore throat traps could be recognized in the J sandstone (Cretaceous) in the Denver basin of Colorado by means of porosity permeability plotting. Variations in hydrocarbon productivity from a Teapot Formation (Cretaceous) field in the Powder River basin of Wyoming were related to porosity types and microfacies; the relationships were applied to exploration. Rock and porosity typing in the Red River Formation (Ordovician) reconciled apparent inconsistencies between drill-stem test, log, and mud-log data from a Williston basin wildcat. The well was reevaluated and completed successfully, resulting in a new field discovery. In each of these three examples, petrophysics was fundamental for proper evaluation of wildcat wells and exploration plays.

Coalson, E.B.; Hartmann, D.J.; Thomas, J.B.

1985-05-01T23:59:59.000Z

211

United States National Waste Terminal Storage argillaceous rock studies  

SciTech Connect (OSTI)

The past and present argillaceous rock studies for the US National Waste Terminal Storage Program consist of: (1) evaluation of the geological characteristics of several widespread argillaceous formations in the United States; (2) laboratory studies of the physical and chemical properties of selected argillaceous rock samples; and (3) two full-scale in situ surface heater experiments that simulate the emplacement of heat-generating radioactive waste in argillaceous rock.

Brunton, G.D.

1981-01-01T23:59:59.000Z

212

Anisotropy and Spatial Variation of Relative Permeability and Lithologic Character of Tensleep Sandstone Reservoirs in the Bighorn and Wind River Basins, Wyoming  

SciTech Connect (OSTI)

This multidisciplinary study is designed to provide improvements in advanced reservoir characterization techniques. This goal is to be accomplished through: (1) an examination of the spatial variation and anisotropy of relative permeability in the Tensleep Sandstone reservoirs of Wyoming; (2) the placement of that variation and anisotropy into paleogeographic, depositional, and diagenetic frameworks; (3) the development of pore-system imagery techniques for the calculation of relative permeability; (4) reservoir simulations testing the impact of relative permeability anisotropy and spatial variation on Tensleep Sandstone reservoir enhanced oil recovery; and (5) a geochemical investigation of the spatial and dynamic alteration in sandstone reservoirs that is caused by rock-fluid interaction during CO{sub 2}-enhanced oil recovery processes.

Dunn, Thomas L.

1996-10-01T23:59:59.000Z

213

Active control of underground stresses through rock pressurization  

SciTech Connect (OSTI)

To significantly increase the stability of underground excavations while exploiting the full advantages of confined rock strength, methods must be developed to actively control the distribution of stresses near the excavation. This US Bureau of Mines study examines theoretical and practical aspects of rock pressurization, an active stress control concept that induces compressive stress in the wall rock through repeated hydraulic fracturing with a settable fluid. Numerical analyses performed by incorporating the rock pressurization concept into a variety of boundary-element models indicate that rock pressurization has the potential to improve underground excavation stability in three ways: (1) by relocating stress concentrations away from the weak opening surface to stronger, confined wall rock; (2) by inducing additional stresses in a biaxial stress field to reduce the difference between the principal stress components near the surface of the opening, and (3) by counteracting the tensile stresses induced in the rock around internally loaded openings. Practical aspects of the rock pressurization concept were investigated through a series of hydraulic fracturing experiments. The use of sulfur as a settable fluid for hydraulic fracturing was demonstrated, although problems related to sulfur viscosity suggest that other molten materials, such as wax, may be better suited to practical field application of the rock pressurization concept.

Vandergrift, T.L.

1995-06-01T23:59:59.000Z

214

Isotopic Analysis- Rock At Kilauea East Rift Geothermal Area...  

Open Energy Info (EERE)

Technique Isotopic Analysis- Rock Activity Date 1989 - 2000 Usefulness not indicated DOE-funding Unknown Exploration Basis The purpose of this study was to analyze deep core...

215

Scientists Pass Solid Particles Through Rock in DOE-Sponsored...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

rock fractures in the laboratory. This technology has the potential for mapping fracture systems in detail and aid in determining reservoir characteristics. This research was...

216

Microsoft Word - CX-Hat_Rock_Switch_14June2013  

Broader source: Energy.gov (indexed) [DOE]

7, 2013 REPLY TO ATTN OF: KEC-4 SUBJECT: Environmental Clearance Memorandum Glenn Russell Project Manager -TPCV-TPP-4 Proposed Action: Hat Rock Switching Station Replacement...

217

Reconstruction of Sedimentary Rock Based on Mechanical Properties  

E-Print Network [OSTI]

Diagenesis transforms an unconsolidated loose sed- imentOur emphasis is on unconsolidated sand and sandstone. Thesedi- mentary rock: unconsolidated sand and sandstone. The

Jin, Guodong; Patzek, Tad W.; Silin, Dmitry B.

2008-01-01T23:59:59.000Z

218

archean supracrustal rocks: Topics by E-print Network  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

interesting than whales's research interests include sustainable transportation, life-cycle assessment, and the national security Zhang, Junshan 164 ELASTIC ROCK PROPERTIES OF...

219

alkalic rock: Topics by E-print Network  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

interesting than whales's research interests include sustainable transportation, life-cycle assessment, and the national security Zhang, Junshan 120 ELASTIC ROCK PROPERTIES OF...

220

Rock Sampling At San Francisco Volcanic Field Area (Warpinski...  

Open Energy Info (EERE)

geologically mapped the target area, obtained rock samples for age dating and mineral chemistry, performed gravity and magnetic surveys, and integrated these results to identify...

Note: This page contains sample records for the topic "rock lithology geochemistry" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Carbonation Mechanism of Reservoir Rock by Supercritical Carbon...  

Broader source: Energy.gov (indexed) [DOE]

chemistrybutchercarbonationmechanism.pdf More Documents & Publications Synchrotron X-ray Studies of Super-critical Carbon Dioxide Reservoir Rock Interfaces Innovative...

222

GEOS898 History on the Rocks Assignment 2  

E-Print Network [OSTI]

can be broken down into four major rock groups (i.e. Clastic, biogenic, organic, chemical Flow chart for identifying sedimentary rocks (most text books have this or can be found on line) Acid, distribution of layers and chemistry. It is worthwhile for the teacher to spend about 10 minutes reviewing

Frank, Tracy D.

223

ROCK: A Robust Clustering Algorithm for Categorical Attributes  

E-Print Network [OSTI]

ROCK: A Robust Clustering Algorithm for Categorical Attributes Sudipto Guha Stanford University/proximity between a pair of data points. We develop a robust hierarchical clustering algorithm ROCK that employs measures that are relevant in situations where a domain expert/similarity table is the only source

Pennsylvania, University of

224

Carbonation Mechanism of Reservoir Rock by Supercritical Carbon Dioxide  

Broader source: Energy.gov [DOE]

Project Objectives: Elucidate comprehensively the carbonation reaction mechanisms between supercritical carbon dioxide (scCO2) and reservoir rocks consisting of different mineralogical compositions in aqueous and non-aqueous environments at temperatures of up to 250ºC, and to develop chemical modeling of CO2-reservior rock interactions.

225

Fluid Migration During Ice/Rock Planetesimal Differentiation  

E-Print Network [OSTI]

/water reaction, which will depend on the rate at which water can be segregated from a melting ice/rock core. For the liquid water phase to migrate toward the surface, the denser rock phase must compact. The primary question that this thesis will answer is how...

Raney, Robert 1987-

2012-12-12T23:59:59.000Z

226

Have you always had a rock collection? Are interesting  

E-Print Network [OSTI]

5/2013 GEOLOGY Have you always had a rock collection? Are interesting landforms your favorite vacation sites? Would you like to help someone locate groundwater or oil-bearing rock formations? If you answered yes to any of these questions, maybe geology is the field for you. Wichita State University

227

Engineering assessment of inactive uranium mill tailings: Slick Rock sites, Slick Rock, Colorado  

SciTech Connect (OSTI)

Ford, Bacon and Davis Utah, Inc., has reevaluated the Slick Rock sites in order to revise the October 1977 engineering radioactive uranium mill tailings at Slick Rock, Colorado. This engineering assessment has included the preparation of topographic maps, the performance of core drillings and radiometric measurements sufficient to determine areas and volumes of tailings and radiation exposures of individuals and nearby populations, the investigations of site hydrology and meteorology, and the evaluation and costing of alternative corrective actions. Radon gas released from the 387,000 tons of tailings at the Slick Rock sites constitutes the most significant environmental impact, although windblown tailings and external gamma radiation also are factors. The five alternative actions presented in this engineering assessment include millsite decontamination with the addition of 3 m of stabilization cover material, consolidation of the piles, and removal of the tailings to remote disposal sites and decontamination of the tailings sites. Cost estimates for the five options range from about $6,800,000 for stabilization in-place, to about $11,000,000 for disposal at a distance of about 6.5 mi. Three principal alternatives for the reprocessing of the Slick Rock tailings were examined: heap leaching; treatment at an existing mill; and reprocessing at a new conventional mill constructed for tailings reprocessing. The cost of the uranium recovered would be over $800/lb of U/sub 3/O/sub 8/ whether by conventional or heap leach plant processes. The spot market price for uranium was $25/lb early in 1981. Therefore, reprocessing the tailings for uranium recovery is not economically attractive at present, nor for the foreseeable future.

none,

1981-09-01T23:59:59.000Z

228

Rock-Water Interactions In Hot Dry Rock Geothermal Systems- Field  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to: navigation, searchVirginia BlueRiverwoods,Rock Sampling Details Activities

229

Rock-Water Interactions in the Fenton Hill, New Mexico, Hot Dry Rock  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to: navigation, searchVirginia BlueRiverwoods,Rock Sampling Details ActivitiesGeothermal

230

Rock-Water Interactions in the Fenton Hill, New Mexico, Hot Dry Rock  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to: navigation, searchVirginia BlueRiverwoods,Rock Sampling Details

231

The distribution and geochemistry of iridium in river suspended material and marine sediments  

E-Print Network [OSTI]

Sapropels and Mid-Cretaceous Marine Black Shales Sources of Iridium The Argument for Iridium Enhancement in the Deep-Sea by Geochemical Processes: Ferromanganese Nodules SUMMARF AND CONCLUSIONS REFERENCES APPENDIX A APPENDIX B APPENDIX C APPENDIX... Samples weighing from 0. 1 to 0. 5 grams were accurately weighed into 2/5 dram attached cap polyethlylene vials and sealed. Standards consisting of USGS standard rocks GSP-1 and AGV-1 and an in-house standar- dized marine sediment were prepared...

Fenner, Frederick Donald

1983-01-01T23:59:59.000Z

232

Estimation of hydrologic properties of an unsaturated, fractured rock mass  

SciTech Connect (OSTI)

In this document, two distinctly different approaches are used to develop continuum models to evaluate water movement in a fractured rock mass. Both models provide methods for estimating rock-mass hydrologic properties. Comparisons made over a range of different tuff properties show good qualitative and quantitative agreement between estimates of rock-mass hydrologic properties made by the two models. This document presents a general discussion of: (1) the hydrology of Yucca Mountain, and the conceptual hydrological model currently being used for the Yucca Mountain site, (2) the development of two models that may be used to estimate the hydrologic properties of a fractured, porous rock mass, and (3) a comparison of the hydrologic properties estimated by these two models. Although the models were developed in response to hydrologic characterization requirements at Yucca Mountain, they can be applied to water movement in any fractured rock mass that satisfies the given assumptions.

Klavetter, E.A.; Peters, R.R.

1986-07-01T23:59:59.000Z

233

Longwave thermal infrared spectral variability in individual rocks  

SciTech Connect (OSTI)

A hyperspectral imaging spectrometer measuring in the longwave thermal infrared (7.6-11.6 {micro}m) with a spatial resolution less than 4 mm was used in the field to observe the variability of emissivity spectra within individual rocks. The rocks were obtained commercially, were on the order of 20 cm in size and were selected to have distinct spectral features: they include alabaster (gypsum), soapstone (steatite with talc), obsidian (volcanic glass), norite (plagioclase and orthopyroxene), and 'jasper' (silica with iron oxides). The advantages of using an imaging spectrometer to spectrally characterize these rocks are apparent. Large spectral variations were observed within individual rocks that may be attributed to roughness, surface geometry, and compositional variation. Non-imaging spectrometers would normally miss these variations as would small samples used in laboratory measurements, spatially averaged spectra can miss the optimum spectra for identification materials and spatially localized components of the rock can be obscured.

Balick, Lee K [Los Alamos National Laboratory; Gillespie, Alan [UN. WASHINGTON; French, Andrew [USDA-ARS; Danilina, Iryna [UN. WASHINGTON

2008-01-01T23:59:59.000Z

234

Geophysical Constraints on Sediment Dispersal Systems  

E-Print Network [OSTI]

modest because the source rock lithology is limestone-consis- tent with its source rock composition and longsources of silica in sediments are the weathering of rocks

Johnstone, Elizabeth Anne Carruthers

2012-01-01T23:59:59.000Z

235

Geophysical constraints on sediment dispersal systems  

E-Print Network [OSTI]

modest because the source rock lithology is limestone-consis- tent with its source rock composition and longsources of silica in sediments are the weathering of rocks

Johnstone, Elizabeth Anne Carruthers; Johnstone, Elizabeth Anne Carruthers

2012-01-01T23:59:59.000Z

236

Constitutive relationships for elastic deformation of clay rock: Data Analysis  

SciTech Connect (OSTI)

Geological repositories have been considered a feasible option worldwide for storing high-level nuclear waste. Clay rock is one of the rock types under consideration for such purposes, because of its favorable features to prevent radionuclide transport from the repository. Coupled hydromechanical processes have an important impact on the performance of a clay repository, and establishing constitutive relationships for modeling such processes are essential. In this study, we propose several constitutive relationships for elastic deformation in indurated clay rocks based on three recently developed concepts. First, when applying Hooke's law in clay rocks, true strain (rock volume change divided by the current rock volume), rather than engineering strain (rock volume change divided by unstressed rock volume), should be used, except when the degree of deformation is very small. In the latter case, the two strains will be practically identical. Second, because of its inherent heterogeneity, clay rock can be divided into two parts, a hard part and a soft part, with the hard part subject to a relatively small degree of deformation compared with the soft part. Third, for swelling rock like clay, effective stress needs to be generalized to include an additional term resulting from the swelling process. To evaluate our theoretical development, we analyze uniaxial test data for core samples of Opalinus clay and laboratory measurements of single fractures within macro-cracked Callovo-Oxfordian argillite samples subject to both confinement and water reduced swelling. The results from this evaluation indicate that our constitutive relationships can adequately represent the data and explain the related observations.

Liu, H.H.; Rutqvist, J.; Birkholzer, J.T.

2011-04-15T23:59:59.000Z

237

13.21 Geochemistry of the Rare-Earth Element, Nb, Ta, Hf, and Zr Deposits RL Linnen, University of Western Ontario, London, ON, Canada  

E-Print Network [OSTI]

13.21 Geochemistry of the Rare-Earth Element, Nb, Ta, Hf, and Zr Deposits RL Linnen, University to Y, the rare- earth elements (REE, La to Lu), Zr, Hf, Nb, and Ta. The rare elements, Canada ã 2014 Elsevier Ltd. All rights reserved. 13.21.1 Introduction 543 13.21.1.1 Uses of Rare Elements

Chakhmouradian, Anton

238

Journal of the Geological Society, London, Vol. 155, 1998, pp. 773785. Printed in Great Britain Mineralogy, sulphur isotope geochemistry and the development of sulphide structures  

E-Print Network [OSTI]

Mineralogy, sulphur isotope geochemistry and the development of sulphide structures at the Broken Spur mineralogy and sulphur isotope analysis. Young mound sulphides from Broken Spur have a pyrrhotite- dominated mineralogy unusual for bare ridge vent systems. However, pyrrhotite is metastable and is ultimately converted

239

Full waveform inversion of a 3-D source inside an artificial rock  

E-Print Network [OSTI]

of a 3-D Source Inside an Artificial Rock Albert C. To andof a 3-D source inside an artificial rock plate inof a 3-D source inside an artificial rock plate is

To, A C; Glaser, Steven D

2005-01-01T23:59:59.000Z

240

America's Atomic Army: The Historical Archaeology of Camp Desert Rock  

SciTech Connect (OSTI)

Established in 1951, Camp Desert Rock served as the training ground for America's 'Atomic Army'. For the next six years, U.S. ground troops traveled to the Nevada desert to participate in military maneuvers during atmospheric atomic weapons testing. Nearly 60,000 soldiers received physical and psychological training in atomic warfare. Abandoned when atmospheric testing ended, Camp Desert Rock was dismantled and its buildings moved to other locations. Today, the camp appears as a sterile expanse of desert marked by rock-lined tent platforms, concrete foundations, and trash scatters. Although visually unimposing, the site is rich with the history of America's nuclear testing program.

Susan R. Edwards

2007-11-02T23:59:59.000Z

Note: This page contains sample records for the topic "rock lithology geochemistry" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Rock Hill Utilities- Water Heater and Heat Pump Rebate Program  

Broader source: Energy.gov [DOE]

Through the SmartChoice program, Rock Hill Utilities offers rebates for water heater and heat pump replacements. Information on financing for heat pumps can also be found on the web site listed...

242

Colloid-facilitated radionuclide transport in fractured porous rock  

E-Print Network [OSTI]

Numerical methods have been applied for the prediction of colloid-facilitated radionuclide transport through water-saturated fractured porous rock. The presence of colloids may enhance the transport of radionuclides in groundwater by reducing...

Baek, Inseok

1994-01-01T23:59:59.000Z

243

Geochemical Data on Waters, Gases, Scales, and Rocks from the...  

Open Energy Info (EERE)

Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Geochemical Data on Waters, Gases, Scales, and Rocks from the Dixie Valley Region, Nevada (1996-1999)...

244

FREE ROCKING OF PRISMATIC BLOCKS By P. R. Lipscombe1  

E-Print Network [OSTI]

FREE ROCKING OF PRISMATIC BLOCKS By P. R. Lipscombe1 and S. Pellegrino2 ABSTRACT: This paper. This cycle comes to an end when the block becomes vertical and starts to rotate again about A. Because some

Pellegrino, Sergio

245

Modeling of Seismic Signatures of Carbonate Rock Types  

E-Print Network [OSTI]

Carbonate reservoirs of different rock types have wide ranges of porosity and permeability, creating zones with different reservoir quality and flow properties. This research addresses how seismic technology can be used to identify different...

Jan, Badr H.

2011-02-22T23:59:59.000Z

246

Mimbres rock art: a graphic legacy of cultural expression  

E-Print Network [OSTI]

Rock art abounds along the Mimbres River banks and drainage tributaries reflecting the rich cultural remains of the ancient Mimbres people. The Mimbres are a well established cultural group who lived in southwest New Mexico and northern Mexico from...

Tidemann, Kathryn

2002-01-01T23:59:59.000Z

247

DNAPL remediation of fractured rock evaluated via numerical simulation   

E-Print Network [OSTI]

Fractured rock formations represent a valuable source of groundwater and can be highly susceptible to contamination by dense, non-aqueous phase liquids (DNAPLs). The goal of this research is to evaluate the effectiveness ...

Pang, Ti Wee

2010-01-01T23:59:59.000Z

248

Figure 2. Stratigraphic Summary of Ages, Names and Rock Types...  

Gasoline and Diesel Fuel Update (EIA)

2. Stratigraphic Summary of Ages, Names and Rock Types in the ANWR 1002 and Coastal Plain Area of the Alaska North Slope. Potentially Productive Reservoirs and Plays Assessed by...

249

Drilling Complete on Australian Hot Dry Rock Project  

Broader source: Energy.gov [DOE]

The first commercial attempt to create a commercial geothermal power plant using hot dry rock technology reached a crucial milestone on January 22, when a production well successfully reached its target depth.

250

Reservoir Investigations on the Hot Dry Rock Geothermal System...  

Open Energy Info (EERE)

Investigations on the Hot Dry Rock Geothermal System, Fenton Hill, New Mexico- Tracer Test Results Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference...

251

ROCK MASS CHARACTERIZATION FOR STORAGE OF NUCLEAR WASTE IN GRANITE  

E-Print Network [OSTI]

of an in-situ jointed granite. Intl. J. Rock Mech. and Min.of Groundwaters in the Stripa Granite: Results and Pre­of water through Westerly Granite at temperatures of 100 -

Witherspoon, P.A.

2010-01-01T23:59:59.000Z

252

Characterizing Flow in Oil Reservoir Rock Using Smooth Particle Hydrodynamics  

E-Print Network [OSTI]

In this paper, a 3D Smooth Particle Hydrodynamics (SPH) simulator for modeling grain scale fluid flow in porous rock is presented. The versatility of the SPH method has driven its use in increasingly complex areas of flow ...

Holmes, David W.

253

The Effect of Heterogeneity on Matrix Acidizing of Carbonate Rocks  

E-Print Network [OSTI]

In matrix acidizing, the goal is to dissolve minerals in the rock to increase well productivity. This is accomplished by injecting an application-specific solution of acid into the formation at a pressure between the pore pressure and fracture...

Keys, Ryan S.

2010-07-14T23:59:59.000Z

254

Experimental Study on Rock Deformation and Permeability Variation  

E-Print Network [OSTI]

The development of a petroleum reservoir would inevitably induce a rearrangement of the in-situ stress field. The rearrangement of the stress field would then bring about a deformation of the reservoir rock and a change of the permeability...

Ding, Jihui

2013-08-01T23:59:59.000Z

255

A Study of Hydraulic Fracturing Initiation in Transversely Isotropic Rocks  

E-Print Network [OSTI]

fractures and also can be used to develop information about in-situ rock properties using failure pressure values observed in the field. Finally, mechanical and permeability anisotropy are measured using Pulse Permeameter and triaxial tests on Pierre shale....

Serajian, Vahid

2011-10-21T23:59:59.000Z

256

Drill-back studies examine fractured, heated rock  

SciTech Connect (OSTI)

To investigate the effects of heating on the mineralogical, geochemical, and mechanical properties of rock by high-level radioactive waste, cores are being examined from holes penetrating locations where electric heaters simulated the presence of a waste canister, and from holes penetration natural hydrothermal systems. Results to date indicate the localized mobility and deposition of uranium in an open fracture in heated granitic rock, the mobility of U in a breccia zone in an active hydrothermal system in tuff, and the presence of U in relatively high concentration in fracture-lining material in tuff. Mechanical -- property studies indicate that differences in compressional- and shear-wave parameters between heated and less heated rock can be attributed to differences in the density of microcracks. Emphasis has shifted from initial studies of granitic rock at Stripa, Sweden to current investigations of welded tuff at the Nevada Test Site. 7 refs., 8 figs.

Wollenberg, H.A.; Flexser, S.; Myer, L.R.

1990-01-01T23:59:59.000Z

257

Rock glacier monitoring with low-cost GPS  

E-Print Network [OSTI]

moving stations on rock glacier Low-cost L1 GPS receivers (blox) Power source: solar panels Local data Rock glacier GPS antennaGPS antenna Solar panelSolar panel Box incl.Box incl. -GPS receiverData logger Instruments Solar panelSolar panel (24W, 12V, 50x50cm)(24W, 12V, 50x50cm) Costs per station: 2

258

Reservoir rock-property calculations from thin section measurements  

E-Print Network [OSTI]

RESERVOIR ROCK-PROPERTY CALCULATIONS FROM THIN SECTION MEASUREMENTS A Thesis by DAVID RICHARD SNEED Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE August 1988 Major Subject: Geology RESERVOIR ROCK-PROPERTY CALCULATIONS FROM THIN SECTION MEASUREMENTS A Thesis by DAVID RICHARD SNEED Approved as to style and content by: Robert R. Berg (Chair of Committee) ~ c(. Thomas T. Tieh (Member...

Sneed, David Richard

1988-01-01T23:59:59.000Z

259

Rock climbing sub-worlds: a segmentation study  

E-Print Network [OSTI]

ROCK CLIMBING SUB-WORLDS: A SEGMENTATION STUDY A Thesis by BRANDON WAYNE RAPELJE Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE August 2004 Major Subject: Recreation, Park & Tourism Sciences ROCK CLIMBING SUB-WORLDS: A SEGMENTATION STUDY A Thesis by BRANDON WAYNE RAPELJE Submitted to Texas A&M University in partial fulfillment...

Rapelje, Brandon Wayne

2004-11-15T23:59:59.000Z

260

International Journal of Rock Mechanics & Mining Sciences 38 (2001) 9951027 Bayesian estimation of rock mass boundary conditions with  

E-Print Network [OSTI]

of rock mass boundary conditions with applications to the AECL underground research laboratory F. Tonon*,1 of the Underground Research Laboratory (URL) of the Atomic Energy of Canada Limited (AECL), Canada. The procedure

Pan, Ernie

Note: This page contains sample records for the topic "rock lithology geochemistry" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

FY 1984 and FY 1985 geochemistry and materials studies in support of the Magma Energy Extraction Program  

SciTech Connect (OSTI)

Geochemistry and materials studies are being performed in support of the Magma Energy Extraction Program. The work is largely restricted to: (1) characterizing magmatic environments at sites of interest, (2) testing engineering materials in laboratory simulated magmatic environments, (3) investigating chemical mass transport effects inherent in designs for direct contact heat exchangers, and (4) evaluating degassing hazards associated with drilling into and extracting energy from shallow magma. Magma characterization studies have been completed for shallow magma at Long Valley, Coso volcanic field, and Kilauea volcano. The behavior of 17 commercially available materials has been examined in rhyolite magma at 850/sup 0/C and 200 MPa for periods up to seven days. Analysis of reaction products from materials tests to date indicate that oxidation is the main corrosion problem for most alloys in rhyolitic magma. Considerations of corrosion resistance, high-temperature strength, and cost indicate nickel-base superalloys offer the most promise as candidates for use in rhyolitic magma.

Westrich, H.R.; Weirick, L.J.; Cygan, R.T.; Reece, M.; Hlava, P.F.; Stockman, H.W.; Gerlach, T.M.

1986-04-01T23:59:59.000Z

262

On Two-Phase Relative Permeability and Capillary Pressure of Rough-Walled Rock Fractures  

E-Print Network [OSTI]

in Single Rock Joints", Licentiate Thesis, Lulea Universityof Technology, Lulea, Sweden. Heiba, A. A. , Sahimi, M. ,

Pruess ed, K.; Tsang, Y.W.

1989-01-01T23:59:59.000Z

263

SPE 159255-PP Rock Classification from Conventional Well Logs in Hydrocarbon-Bearing  

E-Print Network [OSTI]

typing method for application in hydrocarbon-bearing shale (specifically source rock) reservoirs using conventional well logs and core data. Source rock reservoirs are known to be highly heterogeneous and often, petrophysical description of source rock reservoirs with well logs has been focused to quantifying rock

Torres-Verdín, Carlos

264

Water Rock Interaction [WRI 14] Groundwater salinization in a coastal multilayer aquifer  

E-Print Network [OSTI]

social and environmental changes. This paper focuses on the groundwater geochemistry in a costal the last decades. These evolutions gave rise to numerous environmental consequences, such as a dramatic decline of the piezometric levels, groundwater salinization and contamination. This degradation of natural

Boyer, Edmond

265

MECHANICAL DEGRADATION OF EMPLACEMENT DRIFTS AT YUCCA MOUNTAIN - A CASE STUDY IN ROCK MECHANICS, PART 1: NONLITHOPHYSAL ROCK, PART 2: LITHOPHYSAL ROCK  

SciTech Connect (OSTI)

This paper outlines rock mechanics investigations associated with mechanical degradation of planned emplacement drifts at Yucca Mountain, which is the designated site for a US high-level nuclear waste repository. The factors leading to drift degradation include stresses from the overburden, stresses induced by the heat released from the emplaced waste, stresses due to seismically related ground motions, and time-dependent strength degradation. The welded tuff emplacement horizon consists of two groups of rock with distinct engineering properties: nonlithophysal units and lithophysal units, based on the relative proportion of lithophysal cavities. Part I of the paper concentrates on the generally hard, strong, and fractured nonlithophysal rock. The degradation behavior of the tunnels in the nonlithophysal rock is controlled by the occurrence of keyblocks. A statistically equivalent fracture model was generated based on extensive underground fracture mapping data from the Exploratory Studies Facility at Yucca Mountain. Three-dimensional distinct block analyses, generated with the fracture patterns randomly selected from the fracture model, were developed with the consideration of in situ, thermal, seismic loads. In this study, field data, laboratory data, and numerical analyses are well integrated to provide a solution for the unique problem of modeling drift degradation throughout the regulatory period for repository performance.

M. Lin, D. Kicker, B. Damjanac, M. Board, and M. Karakouzian

2006-02-27T23:59:59.000Z

266

Environmental assessment of remedial action at the slick rock Uranium Mill Tailings sites Slick Rock, Colorado  

SciTech Connect (OSTI)

The Uranium Mill Tailings Radiation Control Act of 1978 (42 USC {section} 7901 et seq.), hereafter referred to as the UMTRCA, authorized the U.S. Department of Energy (DOE) to clean up two uranium mill tailings processing sites near Slick Rock, Colorado, in San Miguel County. The purpose of the cleanup is to reduce the potential health effects associated with the radioactive materials remaining on the sites and on vicinity properties (VPs) associated with the sites. Contaminated materials cover an estimated 55 acres of the Union Carbide (UC) processing site and 12 ac of the North Continent (NC) processing site. The total estimated volume of contaminated materials is approximately 61 8,300 cubic yards. In addition to the contamination in the two processing site areas, four VPs were found to contain contamination. As a result of the tailings being exposed to the environment, contamination associated with the UC and NC sites has leached into shallow ground water. Surface water has not been affected. The closest residence is approximately 0.3 air mi from either site. The proposed action is to remediate the UC and NC sites by removing all contaminated materials within the designated site boundaries or otherwise associated with the sites, and relocating them to, and stabilizing them at, a location approximately 5 road mi (8 km) northeast of the sites on land administered by the Bureau of Land Management (BLM). Remediation would be performed by the DOE`s Uranium Mill Tailings Remedial Action (UMTRA) Project. All solid contaminated materials would be buried under 5 feet (ft) of rock and soil materials. The proposed disposal site area is currently used by ranchers for cattle grazing over a 7-month period. The closest residence to the proposed disposal site is 2 air mi. An estimated 44 ac of land would be permanently transferred from the BLM to the DOE and restricted from future use.

Not Available

1994-09-01T23:59:59.000Z

267

Chemical and petrological characteristics of the intrusive rocks of the Quitman Mountains, Texas  

E-Print Network [OSTI]

of the behavior of elements in a magmatic environment. Due to the relatively small size of the Quitman intru- sion, the diversity of rock types, and the shallow depth of the source magma as evidenced by the composition and tex- ture of the rocks, it provides... faulted Creta- ceous sedimentary rocks. These Cretaceous rocks consist of some 12, 000 feet of marine shales, sandstones and limestones, and non-marine sandstones and shales. In places, volcanic rocks, mainly tuffaceous rhyolites and andesites...

Seay, Christopher Sidney

1973-01-01T23:59:59.000Z

268

Proceedings of the scientific visit on crystalline rock repository development.  

SciTech Connect (OSTI)

A scientific visit on Crystalline Rock Repository Development was held in the Czech Republic on September 24-27, 2012. The visit was hosted by the Czech Radioactive Waste Repository Authority (RAWRA), co-hosted by Sandia National Laboratories (SNL), and supported by the International Atomic Energy Agency (IAEA). The purpose of the visit was to promote technical information exchange between participants from countries engaged in the investigation and exploration of crystalline rock for the eventual construction of nuclear waste repositories. The visit was designed especially for participants of countries that have recently commenced (or recommenced) national repository programmes in crystalline host rock formations. Discussion topics included repository programme development, site screening and selection, site characterization, disposal concepts in crystalline host rock, regulatory frameworks, and safety assessment methodology. Interest was surveyed in establishing a %E2%80%9Cclub,%E2%80%9D the mission of which would be to identify and address the various technical challenges that confront the disposal of radioactive waste in crystalline rock environments. The idea of a second scientific visit to be held one year later in another host country received popular support. The visit concluded with a trip to the countryside south of Prague where participants were treated to a tour of the laboratory and underground facilities of the Josef Regional Underground Research Centre.

Mariner, Paul E.; Hardin, Ernest L.; Miksova, Jitka [RAWRA, Czech Republic

2013-02-01T23:59:59.000Z

269

Reconstruction of Sedimentary Rock Based on MechanicalProperties  

SciTech Connect (OSTI)

We describe a general, physics-based approach to numericalreconstruction of the geometrical structure and mechanical properties ofnatural sedimentary rock in 3D. Our procedure consists of three mainsteps: sedimentation, compaction, and diagenesis, followed by theverification of rock mechanical properties. The dynamic geologicprocesses of grain sedimentation and compaction are simulated by solvinga dimensionless form of Newton's equations of motion for an ensemble ofgrains. The diagenetic rock transformation is modeled using a cementationalgorithm, which accounts for the effect of rock grain size on therelative rate of cement overgrowth. Our emphasis is on unconsolidatedsand and sandstone. The main input parameters are the grain sizedistribution, the final rock porosity, the type and amount of cement andclay minerals, and grain mechanical properties: the inter-grain frictioncoefficient, the cement strength, and the grain stiffness moduli. We usea simulated 2D Fontainebleau sandstone to obtain the grain mechanicalproperties. This Fontainebleau sandstone is also used to study theinitiation, growth, and coalescence of micro-cracks under increasingvertical stress. The box fractal dimension of the micro-crackdistribution, and its variation with the applied stress areestimated.

Jin, Guodong; Patzek, Tad W.; Silin, Dmitry B.

2004-05-04T23:59:59.000Z

270

Potential for tunneling based on rock and soil melting. Abstracts  

SciTech Connect (OSTI)

The rock-melting drill was invented at Los Alamos Scientific Laboratory in 1960. Electrically heated, laboratory-scale drills were subsequently shown to penetrate igneous rocks at usefully high rates, with moderate power consumptions. The development of compact nuclear reactors and of heat pipes now makes possible the extension of this technology to much larger melting penetrators, potentially capable of producing holes up to several meters in diameter and several tens of kilometers long or deep. Development of a rapid, versatile, economical method of boring large, long shafts and tunnels offers solutions to many of man's most urgent ecological, scientific, raw-materials, and energy-supply problems. A melting method appears to be the most promising and flexible means of producing such holes. It is relatively insensitive to the composition, hardness, structure, and temperature of the rock, and offers the possibilities of producing self-supporting, glass-lined holes in almost any formation and (using a technique called lithofracturing) of eliminating the debris-removal problem by forcing molten rock into cracks created in the bore wall. Large rock-melting penetrators, called Electric Subterrenes or Nuclear Subterrenes according to the energy source used, are discussed in this report, together with problems anticipated in their development. It is concluded that this development is within the grasp of present technology.

Rowley, J.C.

1985-01-01T23:59:59.000Z

271

Mechanical interaction between rock, buffer and canister in repositories  

SciTech Connect (OSTI)

The bentonite clay buffer, which is used in the repository concept of Sweden as well as many other countries, has an important role for mechanical protection of the canister. Of special interest is the effect of a rock shear, i.e. displacement of the rock along a fracture intersecting the deposition hole, on the canister. The article shows the results of some FEM calculations of a rock shear when the new composite copper/steel canister, is used. The effect of the swelling pressure from the bentonite before shear and the effect of a symmetric as well as an asymmetric rock shear will be shown. The calculations have been preceded by extensive laboratory tests and verification calculations by which material models for the buffer and proper calculation techniques have been developed. The material model for the clay is an elastic plastic model in which porous elasticity, based on the effective stress theory, is combined with Drucker-Prager plasticity. The results indicate that the bentonite clay acts as a very good mechanical buffer against such rock displacements. Although plastic yielding may occur, mainly in the copper, the plastic strain is not more than a few percent just after the shear.

Borgesson, L. [Clay Technology AB, Lund (Sweden)

1993-12-31T23:59:59.000Z

272

Superhard nanophase cutter materials for rock drilling applications  

SciTech Connect (OSTI)

The Low Pressure-High Temperature (LPHT) System has been developed for sintering of nanophase cutter and anvil materials. Microstructured and nanostructured cutters were sintered and studied for rock drilling applications. The WC/Co anvils were sintered and used for development of High Pressure-High Temperature (HPHT) Systems. Binderless diamond and superhard nanophase cutter materials were manufactured with help of HPHT Systems. The diamond materials were studied for rock machining and drilling applications. Binderless Polycrystalline Diamonds (BPCD) have high thermal stability and can be used in geothermal drilling of hard rock formations. Nanophase Polycrystalline Diamonds (NPCD) are under study in precision machining of optical lenses. Triphasic Diamond/Carbide/Metal Composites (TDCC) will be commercialized in drilling and machining applications.

Voronov, O.; Tompa, G.; Sadangi, R.; Kear, B.; Wilson, C.; Yan, P.

2000-06-23T23:59:59.000Z

273

Damage-induced nonassociated inelastic flow in rock salt  

SciTech Connect (OSTI)

The multi-mechanism deformation coupled fracture model recently developed by CHAN, et al. (1992), for describing time-dependent, pressure-sensitive inelastic flow and damage evolution in crystalline solids was evaluated against triaxial creep experiments on rock salt. Guided by experimental observations, the kinetic equation and the flow law for damage-induced inelastic flow in the model were modified to account for the development of damage and inelastic dilatation in the transient creep regime. The revised model was then utilized to obtain the creep response and damage evolution in rock salt as a function of confining pressure and stress difference. Comparison between model calculation and experiment revealed that damage-induced inelastic flow is nonassociated, dilatational, and contributes significantly to the macroscopic strain rate observed in rock salt deformed at low confining pressures. The inelastic strain rate and volumetric strain due to damage decrease with increasing confining pressures, and all are suppressed at sufficiently high confining pressures.

Chan, K.S.; Bodner, S.R. [Southwest Research Inst., San Antonio, TX (United States); Brodsky, N.S.; Fossum, A.F. [RE/SPEC, Inc., Rapid City, SD (United States); Munson, D.E. [Sandia National Labs., Albuquerque, NM (United States)

1993-06-01T23:59:59.000Z

274

Predicting the transport properties of sedimentary rocks from microstructure  

SciTech Connect (OSTI)

Understanding transport properties of sedimentary rocks, including permeability, relative permeability, and electrical conductivity, is of great importance for petroleum engineering, waste isolation, environmental restoration, and other applications. These transport properties axe controlled to a great extent by the pore structure. How pore geometry, topology, and the physics and chemistry of mineral-fluid and fluid-fluid interactions affect the flow of fluids through consolidated/partially consolidated porous media are investigated analytically and experimentally. Hydraulic and electrical conductivity of sedimentary rocks are predicted from the microscopic geometry of the pore space. Cross-sectional areas and perimeters of individual pores are estimated from two-dimensional scanning electron microscope (SEM) photomicrographs of rock sections. Results, using Berea, Boise, Massilon, and Saint-Gilles sandstones show close agreement between the predicted and measured permeabilities. Good to fair agreement is found in the case of electrical conductivity. In particular, good agreement is found for a poorly cemented rock such as Saint-Gilles sandstone, whereas the agreement is not very good for well-cemented rocks. The possible reasons for this are investigated. The surface conductance contribution of clay minerals to the overall electrical conductivity is assessed. The effect of partial hydrocarbon saturation on overall rock conductivity, and on the Archie saturation exponent, is discussed. The region of validity of the well-known Kozeny-Carman permeability formulae for consolidated porous media and their relationship to the microscopic spatial variations of channel dimensions are established. It is found that the permeabilities predicted by the Kozeny-Carman equations are valid within a factor of three of the observed values methods.

Schlueter, E.M.

1995-01-01T23:59:59.000Z

275

Ozone generation by rock fracture: Earthquake early warning?  

SciTech Connect (OSTI)

We report the production of up to 10 ppm ozone during crushing and grinding of typical terrestrial crust rocks in air, O{sub 2} and CO{sub 2} at atmospheric pressure, but not in helium or nitrogen. Ozone is formed by exoelectrons emitted by high electric fields, resulting from charge separation during fracture. The results suggest that ground level ozone produced by rock fracture, besides its potential health hazard, can be used for early warning in earthquakes and other catastrophes, such as landslides or land shifts in excavation tunnels and underground mines.

Baragiola, Raul A.; Dukes, Catherine A.; Hedges, Dawn [Engineering Physics, University of Virginia, Charlottesville, Virginia 22904 (United States)

2011-11-14T23:59:59.000Z

276

SEISMIC AND ROCK PHYSICS DIAGNOSTICS OF MULTISCALE RESERVOIR TEXTURES  

SciTech Connect (OSTI)

As part of our study on ''Relationships between seismic properties and rock microstructure'', we have (1) Studied relationships between velocity and permeability. (2) Used independent experimental methods to measure the elastic moduli of clay minerals as functions of pressure and saturation. (3) Applied different statistical methods for characterizing heterogeneity and textures from scanning acoustic microscope (SAM) images of shale microstructures. (4) Analyzed the directional dependence of velocity and attenuation in different reservoir rocks (5) Compared Vp measured under hydrostatic and non-hydrostatic stress conditions in sands. (6) Studied stratification as a source of intrinsic anisotropy in sediments using Vp and statistical methods for characterizing textures in sands.

Gary Mavko

2003-10-01T23:59:59.000Z

277

RockPort Capital Partners (California) | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to: navigation, searchVirginia BlueRiverwoods,Rock Sampling DetailsRockPort Capital Partners

278

Environmental assessment of remedial action at the Slick Rock uranium mill tailings sites, Slick Rock, Colorado  

SciTech Connect (OSTI)

The Uranium Mill Tailings Radiation Control Act of 1978, hereafter referred to as the UMTRCA, authorized the US Department of Energy (DOE) to clean up two uranium mill tailings processing sites near Slick Rock, Colorado, in San Miguel County. The purpose of the cleanup is to reduce the potential health effects associated with the radioactive materials remaining on the processing sites and on vicinity properties (VPs) associated with the sites. The US Environmental Protection Agency (EPA) promulgated standards for the UMTRCA that contained measures to control the contaminated materials and to protect the ground water from further degradation. The sites contain concrete foundations of mill buildings, tailings piles, and areas contaminated by windblown and waterborne radioactive tailings materials. The proposed action is to remediate the UC and NC sites by removing all contaminated materials within the designated site boundaries or otherwise associated with the sites, and relocating them to, and stabilizing them at, a location approximately 5 road mi (8 km) northeast of the processing sites on land administered by the US Bureau of Land Management (BLM). Remediation would be performed by the DOE`s Uranium Mill Tailings Remedial Action (UMTRA) Project.

NONE

1995-01-01T23:59:59.000Z

279

Geohydromechanical Processes in the Excavation Damaged Zone in Crystalline Rock, Rock Salt, and Indurated and Plastic Clays  

SciTech Connect (OSTI)

The creation of an excavation disturbed zone or excavation damaged zone is expected around all man-made openings in geologic formations. Macro- and micro-fracturing, and in general a redistribution of in situ stresses and rearrangement of rock structures, will occur in this zone, resulting in drastic changes of permeability to flow, mainly through the fractures and cracks induced by excavation. Such an EDZ may have significant implications for the operation and long-term performance of an underground nuclear waste repository. Various issues of concern need to be evaluated, such as processes creating fractures in the excavation damaged zone, the degree of permeability increase, and the potential for sealing or healing (with permeability reduction) in the zone. In recent years, efforts along these lines have been made for a potential repository in four rock types-crystalline rock, salt, indurated clay, and plastic clay-and these efforts have involved field, laboratory, and theoretical studies. The present work involves a synthesis of the ideas and issues that emerged from presentations and discussions on EDZ in these four rock types at a CLUSTER Conference and Workshop held in Luxembourg in November, 2003. First, definitions of excavation disturbed and excavation damaged zones are proposed. Then, an approach is suggested for the synthesis and intercomparison of geohydromechanical processes in the EDZ for the four rock types (crystalline rock, salt, indurated clay, and plastic clay). Comparison tables of relevant processes, associated factors, and modeling and testing techniques are developed. A discussion of the general state-of-the-art and outstanding issues are also presented. A substantial bibliography of relevant papers on the subject is supplied at the end of the paper.

Tsang, Chin-Fu; Bernier, Frederic; Davies, Christophe

2004-06-20T23:59:59.000Z

280

ConocoPhillips Canada rocks UAlberta science and engineering students  

E-Print Network [OSTI]

ConocoPhillips Canada rocks UAlberta science and engineering students Teaching, research spaces. As an ongoing supporter of geoscience field schools, ConocoPhillips Canada has provided more than $3.1 million Program at the U of A, the only one of its kind in Canada. "The support from ConocoPhillips Canada

Machel, Hans

Note: This page contains sample records for the topic "rock lithology geochemistry" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Characterization of Geomechanical Poroelastic Parameters in Tight Rocks  

E-Print Network [OSTI]

In petroleum engineering and geophysics, it is often assumed that the rocks are completely rigid bodies with a totally interconnected pore space and that the fluid within the pores does not affect and are independent of the strains in the porous...

Chen Valdes, Clotilde Raquel

2013-08-15T23:59:59.000Z

282

Columbia River Channel Improvement Project Rock Removal Blasting: Monitoring Plan  

SciTech Connect (OSTI)

This document provides a monitoring plan to evaluate take as outlined in the National Marine Fisheries Service 2002 Biological Opinion for underwater blasting to remove rock from the navigation channel for the Columbia River Channel Improvement Project. The plan was prepared by the Pacific Northwest National Laboratory (PNNL) for the U.S. Army Corps of Engineers (USACE), Portland District.

Carlson, Thomas J.; Johnson, Gary E.

2010-01-29T23:59:59.000Z

283

Elastic properties of saturated porous rocks with aligned fractures  

E-Print Network [OSTI]

Several treatments of the porous media with aligned fractures have been ...... a function of background porosity /p for water-satu- rated rock (Kf = 2.25 ? 109 Pa). .... that are in hydraulic equilibrium with the fractures, the fluid will squeeze from ...

2003-12-02T23:59:59.000Z

284

Investigation of a hydraulic impact a technology in rock breaking  

E-Print Network [OSTI]

in mining industry. The impact process of a high speed piston on liquid water, previously introduced on the environment such as fly rocks, air blast, noise pollution and toxic fumes. When blasting occurs close to residential areas, or during tunnel construction, environmental protection regulation could seriously affect

285

Gravimeter yields rock density for cavern during operations  

SciTech Connect (OSTI)

Designing underground cavities and especially planning for caverns in salt formations for storage require investigations of several questions that are posed in this paper. A downhole gravimeter can determine rock density in a natural gas storage cavern while it is in operation or still being solution mined. Operating conditions or solution mining in progress precludes use of a standard density tool during conventional well-logging procedures. Rock density is one of the principal input parameters for rock mechanical investigations in specifying optimum pressure levels in storage caverns. The advantages and disadvantages of the system, as well as of the technical logging procedures, follow. The gravimeter tool: measures rock densities up to approximately 20 m into the formation; logs through casing (independent of a drilling rig); is unaffected by drilling mud; is unaffected by size and variation of caliber. But it also: does not measure continuously; makes logging time-consuming and requires a certain mobilization time; delivers data whose accuracy depends o the homogeneity of the formation or level of information available on the structure in question.

Folle, S.; Rolfs, O. [Kavernen Bau- and Betriebs-GmbH, Hannover (Germany)

1996-01-22T23:59:59.000Z

286

Morphology and dynamics of explosive vents through cohesive rock formations  

E-Print Network [OSTI]

to test the effects of these parameters. The experiments were used to test the effect of 2 on vent simulations were used to test the effect of 3 on vent morphology and dynamics. In the numerical models we see to underground explosions that blast the overlaying rock formations [e.g., Gisler, 2009]. This phenomenon occurs

Galland, Olivier

287

Process of breaking and rendering permeable a subterranean rock mass  

DOE Patents [OSTI]

The process of the present invention involves the following steps: producing, as by hydrofracing, a substantially horizontal fracture in the subterranean rock mass to be processed; emplacing an explosive charge in the mass in spaced juxtaposed position to the fracture; enlarging the fracture to create a void space thereat, an initial lifting of the overburden, and to provide a free face juxtaposed to and arranged to cooperate with the emplaced explosive charge; and exploding the charge against the free face for fragmenting the rock and to distribute the space, thus providing fractured, pervious, rubble-ized rock in an enclosed subterranean chamber. Firing of the charge provides a further lifting of the overburden, an enlargement of the chamber and a larger void space to distribute throughout the rubble-ized rock within the chamber. In some forms of the invention an explosive charge is used to produce a transitory enlargement of the fracture, and the juxtaposed emplaced charge is fired during the critical period of enlargement of the fracture.

Lekas, Mitchell A. (Concord, CA)

1980-01-01T23:59:59.000Z

288

SEISMIC AND ROCK PHYSICS DIAGNOSTICS OF MULTISCALE RESERVOIR TEXTURES  

SciTech Connect (OSTI)

As part of our study on ''Relationships between seismic properties and rock microstructure'', we have studied (1) Methods for detection of stress-induced velocity anisotropy in sands. (2) We have initiated efforts for velocity upscaling to quantify long-wavelength and short-wavelength velocity behavior and the scale-dependent dispersion caused by sediment variability in different depositional environments.

Gary Mavko

2003-06-30T23:59:59.000Z

289

Rock-physics Models for Gas-hydrate Systems Associated  

E-Print Network [OSTI]

Rock-physics Models for Gas-hydrate Systems Associated with Unconsolidated Marine Sediments Diana associated with unconsolidated marine sediments. The goals are to predict gas-hydrate concentration from intercalated with unconsolidated sediments. We show that the geometrical details of how gas hy- drates

Texas at Austin, University of

290

SEISMIC AND ROCK PHYSICS DIAGNOSTICS OF MULTISCALE RESERVOIR TEXTURES  

SciTech Connect (OSTI)

As part of our study on ''Relationships between seismic properties and rock microstructure'', we have continued our work on analyzing well logs and microstructural constraints on seismic signatures. We report results of three studies in this report. The first one deals with fractures and faults that provide the primary control on the underground fluid flow through low permeability massive carbonate rocks. Fault cores often represent lower transmissibility whereas the surrounding damaged rocks and main slip surfaces are high transmissibility elements. We determined the physical properties of fault rocks collected in and around the fault cores of large normal faults in central Italy. After studying the P- and S-wave velocity variation during cycles of confining pressure, we conclude that a rigid pore frame characterizes the fault gouge whereas the fractured limestone comprises pores with a larger aspect ratio. The second study was to characterize the seismic properties of brine as its temperature decreases from 25 C to -21 C. The purpose was to understand how the transmitted wave changes with the onset of freezing. The main practical reason for this experiment was to use partially frozen brine as an analogue for a mixture of methane hydrate and water present in the pore space of a gas hydrate reservoir. In the third study we analyzed variations in dynamic moduli in various carbonate reservoirs. The investigations include log and laboratory data from velocity, porosity, permeability, and attenuation measurements.

Gary Mavko

2004-08-01T23:59:59.000Z

291

Wave Generation from Explosions in Rock Cavities CANGLI LIU1  

E-Print Network [OSTI]

Wave Generation from Explosions in Rock Cavities CANGLI LIU1 and THOMAS J. AHRENS1 Abstract Ð We have developed a measurement method to monitor P- and S-waves generated from laboratory diameter cavities. Stress waves generated by the explosions were recorded within a radius of 25 cm

Stewart, Sarah T.

292

2008 Rock Deformation GRC - Conference August 3-8, 2008  

SciTech Connect (OSTI)

The GRC on Rock Deformation highlights the latest research in brittle and ductile rock mechanics from experimental, field and theoretical perspectives. The conference promotes a multi-disciplinary forum for assessing our understanding of rock strength and related physical properties in the Earth. The theme for the 2008 conference is 'Real-time Rheology'. Using ever-improving geophysical techniques, our ability to constrain the rheological behavior during earthquakes and post-seismic creep has improved significantly. Such data are used to investigate the frictional behavior of faults, processes responsible for strain localization, the viscosity of the lower crust, and viscous coupling between the crust and mantle. Seismological data also provide information on the rheology of the lower crust and mantle through analysis of seismic attenuation and anisotropy. Geologists are improving our understanding of rheology by combining novel analyses of microstructures in naturally deformed rocks with petrologic data. This conference will bring together experts and students in these research areas with experimentalists and theoreticians studying the same processes. We will discuss and assess where agreement exists on rheological constraints derived at different length/time scales using different techniques - and where new insight is required. To encompass the elements of these topics, speakers and discussion leaders with backgrounds in geodesy, experimental rock deformation, structural geology, earthquake seismology, geodynamics, glaciology, materials science, and mineral physics will be invited to the conference. Thematic sessions will be organized on the dynamics of earthquake rupture, the rheology of the lower crust and coupling with the upper mantle, the measurement and interpretation of seismic attenuation and anisotropy, the dynamics of ice sheets and the coupling of reactive porous flow and brittle deformation for understanding geothermal and chemical properties of the shallow crust that are important for developing ideas in CO2 sequestration, geothermal and petrochemical research and the mechanics of shallow faults.

James G. Hirth

2009-09-21T23:59:59.000Z

293

Fundamental Investigation of Pore Pressure Prediction During Drilling from the Mechanical Behavior of Rock  

E-Print Network [OSTI]

An investigation was conducted as a preliminary effort to develop a methodology to predict pore pressure in a rock formation during drilling, for all types of rocks and situations. Specifically, it was investigated whether or not the virgin pore...

Rivas Cardona, Juan 1980-

2011-07-18T23:59:59.000Z

294

Rock-Water Interactions in the Fenton Hill, New Mexico, Hot Dry...  

Open Energy Info (EERE)

to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Rock-Water Interactions in the Fenton Hill, New Mexico, Hot Dry Rock Geothermal Systems I. Fluid...

295

Rock-Water Interactions in the Fenton Hill, New Mexico, Hot Dry...  

Open Energy Info (EERE)

to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Rock-Water Interactions in the Fenton Hill, New Mexico, Hot Dry Rock Geothermal Systems II....

296

Modeling of thermally driven hydrological processes in partially saturated fractured rock  

E-Print Network [OSTI]

the heat source and encounters cooler rock, it condenses,fractured rock near the radioactive-decay heat source isrock, giving rise to a reflux of liquid back to the heat source.

Tsang, Yvonne

2010-01-01T23:59:59.000Z

297

Transport and seismoelectric properties of porous permeable rock : numerical modeling and laboratory measurements  

E-Print Network [OSTI]

The objective of this thesis is to better understand the transport and seismoelectric (SE) properties of porous permeable rock. Accurate information of rock transport properties, together with pore geometry, can aid us to ...

Zhan, Xin, Ph. D. Massachusetts Institute of Technology

2010-01-01T23:59:59.000Z

298

E-Print Network 3.0 - acid volcano-plutonic rocks Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

the first of a long string of bad jokes, and start looking at rocks. Get yer hiking boots ready. Purpose... will be placed on the field relationships of the various rock units...

299

Search for underground openings for in situ test facilities in crystalline rock  

SciTech Connect (OSTI)

With a few exceptions, crystalline rocks in this study were limited to plutonic rocks and medium to high-grade metamorphic rocks. Nearly 1700 underground mines, possibly occurring in crystalline rock, were initially identified. Application of criteria resulted in the identification of 60 potential sites. Within this number, 26 mines and 4 civil works were identified as having potential in that they fulfilled the criteria. Thirty other mines may have similar potential. Most of the mines identified are near the contact between a pluton and older sedimentary, volcanic and metamorphic rocks. However, some mines and the civil works are well within plutonic or metamorphic rock masses. Civil works, notably underground galleries associated with pumped storage hydroelectric facilities, are generally located in tectonically stable regions, in relatively homogeneous crystalline rock bodies. A program is recommended which would identify one or more sites where a concordance exists between geologic setting, company amenability, accessibility and facilities to conduct in situ tests in crystalline rock.

Wollenberg, H.A.; Strisower, B.; Corrigan, D.J.; Graf, A.N.; O'Brien, M.T.; Pratt, H.; Board, M.; Hustrulid, W.

1980-01-01T23:59:59.000Z

300

Tracer Fluid Flow through Porous Media: Theory Applied to Acid Stimulation Treatments in Carbonate Rocks  

E-Print Network [OSTI]

Most carbonate rocks are heterogeneous at multiple length scales. These heterogeneities strongly influence the outcome of the acid stimulation treatments which are routinely performed to improve well productivity. At the pore scale, carbonate rocks...

Zakaria Mohamed Reda, Ahmed

2014-07-29T23:59:59.000Z

Note: This page contains sample records for the topic "rock lithology geochemistry" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Geochemistry and stable isotope constraints on high-temperature activity from sediment cores of the Saldanha hydrothermal field  

E-Print Network [OSTI]

hydrothermal processes occur, including reactions of the hydrothermal fluids with mafic and ultramafic rocks of seafloor hydrothermal processes. The focus on these ultramafic-hosted hydrothermal systems has increased, i of the Saldanha hydrothermal field Á.S. Dias a, ,1 , G.L. Früh-Green b,1 , S.M. Bernasconi c,1 , F.J.A.S. Barriga

Gilli, Adrian

302

Modeling of coupled thermodynamic and geomechanical performance of underground compressed air energy storage (CAES) in lined rock caverns  

E-Print Network [OSTI]

Excavated Hard Rock Caverns. Pacific Northwest Laboratory,Lux, K.H. Design of salt caverns for the storage of naturalgas storage in unlined rock caverns. Int J Rock Mech Min Sc

Rutqvist, J.

2013-01-01T23:59:59.000Z

303

Esimation of field-scale thermal conductivities of unsaturated rocks from in-situ temperature data  

E-Print Network [OSTI]

Properties in Hard Rock, Ph.D. Thesis, Lulea Universityof Technology, Lulea, Sweden. Kolditz, O. and C. Clauser, (

Mukhopadhyay, Sumit; Tsang, Yvonne W.; Birkholzer, Jens T.

2008-01-01T23:59:59.000Z

304

Coupled hydro-mechanical processes in crytalline rock and in induratedand plastic clays: A comparative discussion  

E-Print Network [OSTI]

at Grimsel. In Coupled Thermo-Hydro- Mechanical-ChemicalCOUPLED HYDRO-MECHANICAL PROCESSES IN CRYTALLINE ROCK AND IN

Tsang, Chin-Fu; Blumling, Peter; Bernier, Frederic

2008-01-01T23:59:59.000Z

305

URTeC 1620617 Thermal Shock in Reservoir Rock Enhances the Hydraulic  

E-Print Network [OSTI]

URTeC 1620617 Thermal Shock in Reservoir Rock Enhances the Hydraulic Fracturing of Gas Shales Saeid through strain and stress. As the temperature diffuses from hydraulic fracture into reservoir the rock matrix beyond hydraulic fracturing stimulation by cooling down the rock. The physics

Patzek, Tadeusz W.

306

SOURCE AND EFFECT OF ACID ROCK DRAINAGE IN THE SNAKE RIVER WATERSHED, SUMMIT COUNTY, COLORADO  

E-Print Network [OSTI]

SOURCE AND EFFECT OF ACID ROCK DRAINAGE IN THE SNAKE RIVER WATERSHED, SUMMIT COUNTY, COLORADO Belanger, Laura (M.S., Civil, Environmental and Architectural Engineering) Source and Effect of Acid Rock (the weathering of disseminated pyrite) sources of acid rock drainage (ARD). Stream waters

307

The Rock Varnish Revolution: New Insights from Microlaminations and the Contributions of Tanzhuo Liu  

E-Print Network [OSTI]

in potential source materials. In the ensuing two centu- ries, investigations into rock varnish have beenThe Rock Varnish Revolution: New Insights from Microlaminations and the Contributions of Tanzhuo Liu Ronald I. Dorn* School of Geographical Sciences, Arizona State University Abstract Rock varnish

Dorn, Ron

308

Chemical weathering of granitic rock: experiments and Pb-Li isotopes tracing Romain Millot  

E-Print Network [OSTI]

is to better constrain the processes of water/rock interactions both in terms of source (dissolutionChemical weathering of granitic rock: experiments and Pb-Li isotopes tracing Romain Millot Philippe of weathering. In order to go further and to better characterize water/rock interactions, we performed

Paris-Sud XI, Université de

309

Organic matter characteristics of CenomanianTuronian source rocks: implications for petroleum and gas  

E-Print Network [OSTI]

Organic matter characteristics of Cenomanian­Turonian source rocks: implications for petroleum from the Senegal margin basin, believed to be the main source rocks in the area, have been matter sources; Depositional environment; Petroleum source rock #12;1. Introduction Fig. 1. (a) Map

Boyer, Edmond

310

SIZE COMPOSITION AND GROWTH OF YOUNG ROCK CRAB, CANCER IRRORATUS, ON A ROCKY BEACH IN MAINE!  

E-Print Network [OSTI]

. Because rock crab is a valuable commercial species as well as an important food source of lobsters (EnnisSIZE COMPOSITION AND GROWTH OF YOUNG ROCK CRAB, CANCER IRRORATUS, ON A ROCKY BEACH IN MAINE! JAY S KROUSE' ABSTRACT Monthly hand collections of small rock crab, Cancer irrorallls, were made from

311

Creep of Two Alpine Rock Glaciers Observation and Modelling (tztal-and Stubai Alps, Austria)  

E-Print Network [OSTI]

glaciers. The source areas of these rock glaciers are situated at altitudes of 2700 to 2800 m aCreep of Two Alpine Rock Glaciers ­ Observation and Modelling (Ötztal- and Stubai Alps, Austria), Wolfram Mostler (Innsbruck) Abstract Our study concentrates on two active rock glaciers in the Eastern

Brückl, Ewald

312

Bidirectional Seismic Behavior of Controlled Rocking Four-Legged Bridge Steel Truss Piers  

E-Print Network [OSTI]

Bidirectional Seismic Behavior of Controlled Rocking Four-Legged Bridge Steel Truss Piers Michael rocking bridge steel truss piers to three components of seismic excitation are presented in this paper. The controlled rocking approach for seismic protection allows a pier to uplift from its base, limiting the force

Bruneau, Michel

313

Determining the modal mineralogy of mafic and ultramafic igneous rocks using thermal emission spectroscopy  

E-Print Network [OSTI]

Determining the modal mineralogy of mafic and ultramafic igneous rocks using thermal emission, Tempe Abstract. The modal mineralogies of 20 mafic and ultramafic igneous rocks were determined from mineralogical information from thermal infrared emission spectra of bulk rock samples. Furthermore, convolution

Hamilton, Victoria E.

314

Evolution of porosity and geochemistry in Marcellus Formation black shale during weathering  

SciTech Connect (OSTI)

Soils developed on the Oatka Creek member of the Marcellus Formation in Huntingdon, Pennsylvania were analyzed to understand the evolution of black shale matrix porosity and the associated changes in elemental and mineralogical composition during infiltration of water into organic-rich shale. Making the reasonable assumption that soil erosion rates are the same as those measured in a nearby location on a less organic-rich shale, we suggest that soil production rates have on average been faster for this black shale compared to the gray shale in similar climate settings. This difference is attributed to differences in composition: both shales are dominantly quartz, illite, and chlorite, but the Oatka Creek member at this location has more organic matter (1.25 wt.% organic carbon in rock fragments recovered from the bottom of the auger cores and nearby outcrops) and accessory pyrite. During weathering, the extremely low-porosity bedrock slowly disaggregates into shale chips with intergranular pores and fractures. Some of these pores are eitherfilled with organic matter or air-filled but remain unconnected, and thus inaccessible to water. Based on weathering bedrock/soil profiles, disintegration is initiated with oxidation of pyrite and organic matter, which increases the overall porosity and most importantly allows water penetration. Water infiltration exposes fresh surface area and thus promotes dissolution of plagioclase and clays. As these dissolution reactions proceed, the porosity in the deepest shale chips recovered from the soil decrease from 9 to 7% while kaolinite and Fe oxyhydroxides precipitate. Eventually, near the land surface, mineral precipitation is outcompeted by dissolution or particle loss of illite and chlorite and porosity in shale chips increases to 20%. As imaged by computed tomographic analysis, weathering causes i) greater porosity, ii) greater average length of connected pores, and iii) a more branched pore network compared to the unweathered sample. This work highlights the impact of shale water O2interactions in near-surface environments: (1) black shale weathering is important for global carbon cycles as previously buried organic matter is quickly oxidized; and (2) black shales weather more quickly than less organic- and sulfide-rich shales, leading to high porosity and mineral surface areas exposed for clay weathering. The fast rates of shale gas exploitation that are ongoing in Pennsylvania, Texas and other regions in the United States may furthermore lead to release of metals to the environment if reactions between water and black shale are accelerated by gas development activities in the subsurface just as they are by low-temperature processes in ourfield study.

Jin, Lixin [University of Texas at El Paso] [University of Texas at El Paso; Ryan, Mathur [Juniata College, Huntingdon] [Juniata College, Huntingdon; Rother, Gernot [ORNL] [ORNL; Cole, David [Ohio State University] [Ohio State University; Bazilevskaya, Ekaterina [Pennsylvania State University, University Park, PA] [Pennsylvania State University, University Park, PA; Williams, Jennifer [Pennsylvania State University] [Pennsylvania State University; Alex, Carone [Pennsylvania State University] [Pennsylvania State University; Brantley, S. L. [Pennsylvania State University, University Park, PA] [Pennsylvania State University, University Park, PA

2013-01-01T23:59:59.000Z

315

Evolution of porosity and geochemistry in Marcellus Formation black shale during weathering  

SciTech Connect (OSTI)

Soils developed on the Oatka Creek member of the Marcellus Formation in Huntingdon, Pennsylvania were analyzed to understand the evolution of black shale matrix porosity and the associated changes in elemental and mineralogical composition during infiltration of water into organic-rich shale. Making the reasonable assumption that soil erosion rates are the same as those measured in a nearby location on a less organic-rich shale, we suggest that soil production rates have on average been faster for this black shale compared to the gray shale in similar climate settings. This difference is attributed to differences in composition: both shales are dominantly quartz, illite, and chlorite, but the Oatka Creek member at this location has more organic matter (1.25 wt% organic carbon in rock fragments recovered from the bottom of the auger cores and nearby outcrops) and accessory pyrite. During weathering, the extremely low-porosity bedrock slowly disaggregates into shale chips with intergranular pores and fractures. Some of these pores are either filled with organic matter or air-filled but remain unconnected, and thus inaccessible to water. Based on weathering bedrock/soil profiles, disintegration is initiated with oxidation of pyrite and organic matter, which increases the overall porosity and most importantly allows water penetration. Water infiltration exposes fresh surface area and thus promotes dissolution of plagioclase and clays. As these dissolution reactions proceed, the porosity in the deepest shale chips recovered from the soil decrease from 9 to 7 % while kaolinite and Fe oxyhydroxides precipitate. Eventually, near the land surface, mineral precipitation is outcompeted by dissolution or particle loss of illite and chlorite and porosity in shale chips increases to 20%. As imaged by computed tomographic analysis, weathering causes i) greater porosity, ii) greater average length of connected pores, and iii) a more branched pore network compared to the unweathered sample. This work highlights the impact of shale-water-O2 interactions in near-surface environments: (1) black shale weathering is important for global carbon cycles as previously buried organic matter is quickly oxidized; and (2) black shales weather more quickly than less organic- and sulfide-rich shales, leading to high porosity and mineral surface areas exposed for clay weathering. The fast rates of shale gas exploitation that are ongoing in Pennsylvania, Texas and other regions in the United States may furthermore lead to release of metals to the environment if reactions between water and black shale are accelerated by gas development activities in the subsurface just as they are by low-temperature processes in our field study.

Jin, Lixin [ORNL; Mathur, Ryan [Juniata College, Huntingdon; Rother, Gernot [ORNL; Cole, David [Ohio State University; Bazilevskaya, Ekaterina [Pennsylvania State University, University Park, PA; Williams, Jennifer [Pennsylvania State University; Carone, Alex [Pennsylvania State University, University Park, PA; Brantley, Susan L [ORNL

2013-01-01T23:59:59.000Z

316

Property:LithologyInfo | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy ResourcesLoadingPenobscot County,ContAddr2 Jump to: navigation,PVYearsDisplay/GraphicsLength (m)

317

Prehistoric Rock Structures of the Idaho National Laboratory  

SciTech Connect (OSTI)

Over the past 13,500 years, human populations have lived in and productively utilized the natural resources offered by the cold desert environment of the northeastern Snake River Plain in eastern Idaho. Within an overall framework of hunting and gathering, groups relied on an intimate familiarity with the natural world and developed a variety of technologies to extract the resources that they needed to survive. Useful items were abundant and found everywhere on the landscape. Even the basaltic terrain and the rocks, themselves, were put to productive use. This paper presents a preliminary classification scheme for rock structures built on the Idaho National Laboratory landscape by prehistoric aboriginal populations, including discussions of the overall architecture of the structures, associated artifact assemblages, and topographic placement. Adopting an ecological perspective, the paper concludes with a discussion of the possible functions of these unique resources for the desert populations that once called the INL home.

Brenda R Pace

2007-04-01T23:59:59.000Z

318

Lithophysal Rock Mass Mechanical Properties of the Repository Host Horizon  

SciTech Connect (OSTI)

The purpose of this calculation is to develop estimates of key mechanical properties for the lithophysal rock masses of the Topopah Spring Tuff (Tpt) within the repository host horizon, including their uncertainties and spatial variability. The mechanical properties to be characterized include an elastic parameter, Young's modulus, and a strength parameter, uniaxial compressive strength. Since lithophysal porosity is used as a surrogate property to develop the distributions of the mechanical properties, an estimate of the distribution of lithophysal porosity is also developed. The resulting characterizations of rock parameters are important for supporting the subsurface design, developing the preclosure safety analysis, and assessing the postclosure performance of the repository (e.g., drift degradation and modeling of rockfall impacts on engineered barrier system components).

D. Rigby

2004-11-10T23:59:59.000Z

319

Fluid-Rock Characterization and Interactions in NMR Well Logging  

SciTech Connect (OSTI)

The objective of this project was to characterize the fluid properties and fluid-rock interactions which are needed for formation evaluation by NMR well logging. NMR well logging is finding wide use in formation evaluation. The formation parameters commonly estimated were porosity, permeability, and capillary bound water. Special cases include estimation of oil viscosity, residual oil saturation, location of oil/water contact, and interpretation on whether the hydrocarbon is oil or gas.

Hirasaki, George J.; Mohanty, Kishore K.

2003-02-10T23:59:59.000Z

320

Fluid-Rock Characterization and Interactions in NMR Well Logging  

SciTech Connect (OSTI)

The objective of this project was to characterize the fluid properties and fluid-rock interactions that are needed for formation evaluation by NMR well logging. The advances made in the understanding of NMR fluid properties are summarized in a chapter written for an AAPG book on NMR well logging. This includes live oils, viscous oils, natural gas mixtures, and the relation between relaxation time and diffusivity.

Hirasaki, George J.; Mohanty, Kishore K.

2003-02-10T23:59:59.000Z

Note: This page contains sample records for the topic "rock lithology geochemistry" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Neutron Production from the Fracture of Piezoelectric Rocks  

E-Print Network [OSTI]

A theoretical explanation is provided for the experimental evidence that fracturing piezoelectric rocks produces neutrons. The elastic energy micro-crack production ultimately yields the macroscopic fracture. The mechanical energy is converted by the piezoelectric effect into electric field energy. The electric field energy decays via radio frequency (microwave) electric field oscillations. The radio frequency electric fields accelerate the condensed matter electrons which then collide with protons producing neutrons and neutrinos.

A. Widom; J. Swain; Y. N. Srivastava

2011-09-22T23:59:59.000Z

322

Rock mechanics aspects of blowout self-containment  

E-Print Network [OSTI]

on the linear elastic behavior of rock are excellent tools for designing and optimizing the trajectory of the borehole. Therefore, linear elastic models are the dominant models in most currently available simulators. For instance, Van Oort, Nicholson, and D... boreholes. For example, Van Oort, Nicholson, and D?Agostino 24 provided a numerical finite-element elasto-plastic model for mud weight prediction, which is more realistic and less conservative than previous models. They calibrated and validated...

Akbarnejad Nesheli, Babak

2009-06-02T23:59:59.000Z

323

Compaction around a rigid, circular inclusion in partially molten rock  

E-Print Network [OSTI]

, 3Department of Engineering, University of Cambridge, Cambridge, UK, 4Mathematical Institute, University of Oxford, Oxford, UK Abstract Conservation laws that describe the behavior of partially molten mantle rock have been established for several... of melt from the mantle control the chemical evolution of the mantle and crust over geological time. Observations of petrological and isotopic disequilibrium suggest that melt extraction to produce oceanic crust is rapid and potentially localized...

Alisic, Laura; Rudge, John F.; Katz, Richard F.; Wells, Garth N.; Rhebergen, Sander

2014-07-09T23:59:59.000Z

324

Flow dynamics and solute transport in unsaturated rock fractures  

SciTech Connect (OSTI)

Rock fractures play an important role in flow and contaminant transport in fractured aquifers, production of oil from petroleum reservoirs, and steam generation from geothermal reservoirs. In this dissertation, phenomenological aspects of flow in unsaturated fractures were studied in visualization experiments conducted on a transparent replica of a natural, rough-walled rock fracture for inlet conditions of constant pressure and flow rate over a range of angles of inclination. The experiments demonstrated that infiltrating liquid proceeds through unsaturated rock fractures along non-uniform, localized preferential flow paths. Even in the presence of constant boundary conditions, intermittent flow was a persistent flow feature observed, where portions of the flow channel underwent cycles of snapping and reforming. Two modes of intermittent flow were observed, the pulsating blob mode and the rivulet snapping mode. A conceptual model for the rivulet snapping mode was proposed and examined using idealized, variable-aperture fractures. The frequency of intermittent flow events was measured in several experiments and related to the capillary and Bond numbers to characterize this flow behavior.

Su, G. W.

1999-10-01T23:59:59.000Z

325

Protected Polycrystalline Diamond Compact Bits For Hard Rock Drilling  

SciTech Connect (OSTI)

Two bits were designed. One bit was fabricated and tested at Terra-Tek's Drilling Research Laboratory. Fabrication of the second bit was not completed due to complications in fabrication and meeting scheduled test dates at the test facility. A conical bit was tested in a Carthage Marble (compressive strength 14,500 psi) and Sierra White Granite (compressive strength 28,200 psi). During the testing, Hydraulic Horsepower, Bit Weight, Rotation Rate, were varied for the Conical Bit, a Varel Tricone Bit and Varel PDC bit. The Conical Bi did cut rock at a reasonable rate in both rocks. Beneficial effects from the near and through cutter water nozzles were not evident in the marble due to test conditions and were not conclusive in the granite due to test conditions. At atmospheric drilling, the Conical Bit's penetration rate was as good as the standard PDC bit and better than the Tricone Bit. Torque requirements for the Conical Bit were higher than that required for the Standard Bits. Spudding the conical bit into the rock required some care to avoid overloading the nose cutters. The nose design should be evaluated to improve the bit's spudding characteristics.

Robert Lee Cardenas

2000-10-31T23:59:59.000Z

326

Mapping DNAPL transport contamination in sedimentary and fractured rock aquifers with high resolution borehole seismic imaging Project No. SF11SS13 FY01 Annual Report  

SciTech Connect (OSTI)

This report covers the work performed in the first year of a three-year project funded by the USDOE's Subsurface Contaminant Focus Area (SCFA). The objectives of this project are to develop, demonstrate and evaluate, at appropriate field sites, the utility of high frequency seismic imaging methods to detect and characterize non-aqueous phase liquid (NAPL) contamination in sedimentary and fractured rock aquifers. Field tests consist of crosswell seismic tomography acquired before, during and after any remediation action that would potentially affect fluid distributions. Where feasible, other characterization data is obtained, such as crosswell radar, borehole conductivity and cone penetration testing (CPT). Crosswell data are processed to obtain tomographic images, or two-dimensional distributions, of velocity and attenuation. The interpretation of the tomograms utilizes all available site characterization data to relate the geophysical attributes to lithology and fluid phase heterogeneities. Interpretations are validated by evaluation and testing of field cores. Laboratory tests on core retrieved from surveyed locations are performed to determine the relationships between geophysical parameters and solid and fluid phase composition. In the case of sedimentary aquifers, proof of principle has been demonstrated previously in homogeneous sand-packs at the centimeter and half-meter scale (Geller and Myer, 1995; Geller et al., 2000). The field tests will provide proof-of-principle at the field-scale, by working in an unconsolidated sand aquifer with known presence of NAPL. The ability to upscale from the laboratory to the field is evaluated by conducting field measurements over a range of frequencies that overlap the lowest frequencies used in the laboratory tests. In the fractured rock case, previous field work has shown that fracture zones can be detected by crosswell seismic tomography (Daley et al., 2001; Daley et al., 2000). Laboratory studies have demonstrated that the seismic wave signature is sensitive to the fracture stiffness, and that stiffness is affected by fracture-filling fluids (Pyrak-Nolte and Morris, 2000; Pyrak-Nolte, 1996). The field and laboratory experience provide a physical basis for the potential detection of fractures that would be the important flow paths for NAPL contaminants.

Geller, J.T.; Majer, E.L.; Peterson, J.E.; Williams, K.H.; Flexser, S.

2001-12-01T23:59:59.000Z

327

Advanced Characterization of Fractured Reservoirs in Carbonate Rocks: The Michigan Basin  

SciTech Connect (OSTI)

The purpose of the study was to collect and analyze existing data on the Michigan Basin for fracture patterns on scales ranging form thin section to basin. The data acquisition phase has been successfully concluded with the compilation of several large digital databases containing nearly all the existing information on formation tops, lithology and hydrocarbon production over the entire Michigan Basin. These databases represent the cumulative result of over 80 years of drilling and exploration.

Wood, James R.; Harrison, William B.

2002-12-02T23:59:59.000Z

328

Environmental assessment of remedial action at the Slick Rock uranium mill tailings sites Slick Rock, Colorado. Draft  

SciTech Connect (OSTI)

The Uranium Mill Tailings Radiation Control Act of 1978 (UMTRCA) authorized the US Department of Energy (DOE) to clean up two uranium mill tailings processing sites near Slick Rock, Colorado, in San Miguel County. The purpose of the cleanup is to reduce the potential health effects associated with the radioactive materials remaining on the sites and on vicinity properties (VP) associated with the sites. The US Environmental Protection Agency (EPA) promulgated standards for the UMTRCA that contained measures to control the contaminated materials and to protect the groundwater from further degradation. Remedial actions at the Slick Rock sites must be performed in accordance with these standards and with the concurrence of the US Nuclear Regulatory Commission (NRC).

NONE

1993-06-01T23:59:59.000Z

329

Measurements of water vapor adsorption on the Geysers rocks  

SciTech Connect (OSTI)

The ORNL high temperature isopiestic apparatus was adapted for adsorption measurements. The quantity of water retained by rock samples taken from three different wells of The Geysers was measured at 150 °C and at 200 °C as a function of pressure in the range 0.00 ? p/p0 ? 0.98, where p0 is the saturated water vapor pressure. The rocks were crushed and sieved into three fractions of different grain sizes (with different specific surface areas). Both adsorption (increasing pressure) and desorption (decreasing pressure) runs were made in order to investigate the nature and extent of the hysteresis. Additionally, BET surface area analyses were performed by Porous Materials Inc. on the same rock samples using nitrogen or krypton adsorption measurements at 77 K. Specific surface areas and pore volumes were determined. These parameters are important in estimating water retention capability of a porous material. The same laboratory also determined the densities of the samples by helium pycnometry. Their results were then compared with our own density values obtained by measuring the effect of buoyancy in compressed argon. One of the goals of this project is to determine the dependence of the water retention capacity of the rocks as a function of temperature. The results show a significant dependence of the adsorption and desorption isotherms on the grain size of the sample. The increase in the amount of water retained with temperature observed previously (Shang et al., 1994a, 1994b, 1995) between 90 and 130°C for various reservoir rocks from The Geysers may be due to the contribution of slow chemical adsorption and may be dependent on the time allowed for equilibration. In contrast with the results of Shang et al. (1994a, 1994b, 1995), some closed and nearly closed hysteresis loops on the water adsorption/desorption isotherms (with closing points at p/p0 ? 0.6) were obtained in this study. In these cases the effects of activated processes were not present, and no increase in water adsorption with temperature was observed

Gruszkiewicz, Miroslaw S.; Horita, Juske; Simonson, John M.; Mesmer, Robert E.

1996-01-24T23:59:59.000Z

330

2 INVESTIGATION OF CRUDE OIL/BRINE/ROCK INTERACTION 2.1 EXPERIMENTAL STUDY OF CRUDE/BRINE/ROCK INTERACTION AT  

E-Print Network [OSTI]

as the temperature increased. The aging of low permeability cores saturated with oil had little effect in the rate44 2 INVESTIGATION OF CRUDE OIL/BRINE/ROCK INTERACTION 2.1 EXPERIMENTAL STUDY OF CRUDE in this section and expand the understanding of the interactions of the Spraberry reservoir rock, oil and brine

Schechter, David S.

331

0022-3530/93 $3.00 Long-Term Evolution of Fluid-Rock Interactions in  

E-Print Network [OSTI]

in the evolving Sierra Nevada magmatic arc is preserved in metavolcanic rocks of the Ritter Range pendant oxygen isotopic values of the rocks of the lower section indicate that these rocks interacted extensively with coeval volcanic centers. Metavolcanic rocks of the upper section evidently interacted with meteoris

Barton, Mark D.

332

Hazard investigation of the Portillo Rock Avalanche site, central Andes, Chile, using an integrated field mapping and numerical modelling approach  

E-Print Network [OSTI]

be required to trigger another rockslide from the original source area. The rock slope was otherwise foundHazard investigation of the Portillo Rock Avalanche site, central Andes, Chile, using an integrated Chilean Andes This paper reports a detailed rock slope hazard investigation of the Portillo Rock Avalanche

333

The Distinct Element Method - Application to Structures in Jointed Rock  

SciTech Connect (OSTI)

The Distinct Element Method (DEM) is a meshfree method with applications to rock mechanics, mining sciences, simulations of nuclear repositories, and the stability of underground structures. Continuum mesh-based methods have been applied successfully to many problems in geophysics. Even if the geology includes fractures and faults, when sufficiently large length scales are considered a continuum approximation may be sufficient. However, a large class of problems exist where individual rock joints must be taken into account. This includes problems where the structures of interest have sizes comparable with the block size. In addition, it is possible that while the structure may experience loads which do no measurable damage to individual blocks, some joints may fail. This may launch smaller blocks as dangerous projectiles or even cause total failure of a tunnel. Traditional grid-based continuum approaches are wholly unsuited to this class of problem. It is possible to introduce discontinuities or slide lines into existing grid-based methods, however, such limited approaches can break down when new contacts form between blocks. The distinct element method (DEM) is an alternative, meshfree approach. The DEM can directly approximate the block structure of the jointed rock using arbitrary polyhedra. Using this approach, preexisting joints are readily incorporated into the DEM model. In addition, the method detects all new contacts between blocks resulting from relative block motion. We will describe the background of the DEM and review previous application of the DEM to geophysical problems. Finally we present preliminary results from a investigation into the stability of underground structures subjected to dynamic loading.

Morris, J.P.; Glen, L.; Blair, S.; Heuze, F.

2001-11-30T23:59:59.000Z

334

Energy Efficiency Upgrades for Little Rock Air Force Base  

SciTech Connect (OSTI)

Little Rock Air Force Base (LRAFB), in partnership with the local utility, Entergy Services, Inc., has reduced energy costs and used savings from investments in high-efficiency equipment to maintain and improve the condition of base housing and other facilities. Three projects were completed, with over $10 million invested. Major accomplishments include replacing air-to-air heat pumps with high-efficiency ground-source heat pumps (GSHPs) in more than 1,500 base housing units, lighting modifications to 10 buildings, upgrade of HVAC equipment in the base's enlisted club, and energy-efficient lighting retrofits for LRAFB's flight simulator.

Goldman, C.; Dunlap, M.A.

2000-11-13T23:59:59.000Z

335

A correlation of rock compressibility with temperature and pressure  

E-Print Network [OSTI]

reservoir rocks to higher temperatures. Tests were conducted on 17 specimens cut from 5 sandstone cores and 0 4 specimens cut from one limestone core at temperatures of 76 F, 0 0 0 200 F, 300 F, and 400 F and at pressures ranging from 100-14, 000 0 psi.... The net change in 0 0 pore volume from 100-14, 000 psi ranges between 4. 0 /o and 9. 6 /o 0 0 at room temperature and 5. 1 ? 14. 1 /o at 400 F. A definite trend was established between pore volume compressibility and porosity of the specimens tested...

Choudhary, Bijoy Kumar

1967-01-01T23:59:59.000Z

336

CD-3: Crystalline Rock - Basement | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160Benin: EnergyBoston Areais3: Crystalline Rock - Basement Jump to: navigation, search

337

DOE - Office of Legacy Management -- Rock Island Arsenal - IL 09  

Office of Legacy Management (LM)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarlyEnergyDepartment ofDepartment ofof EnergyYou are herePAOsborne CoColorado RioMill Site -Rock

338

DOE - Office of Legacy Management -- WNI Split Rock Site - 043  

Office of Legacy Management (LM)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarlyEnergyDepartment ofDepartment ofof EnergyYou areDowntown Site -Miami - FL06TN 04Split Rock

339

Window Rock, Arizona: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to:SeadovCooperative JumpWilliamson County,Bay, OR) JumpPhoto fromWindbladeWindham is aRock,

340

Electrical Conductivity of Soils and Rocks | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision has beenFfe2fb55-352f-473b-a2dd-50ae8b27f0a6 No revisionWind,Soils and Rocks Jump to: navigation, search

Note: This page contains sample records for the topic "rock lithology geochemistry" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Alum Rock, California: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160 East 300Algoil JumpAltergy Systems Place: Folsom,IncAltoona, Iowa:Rock, California:

342

Castle Rock, Colorado: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160Benin: EnergyBostonFacilityCascade Sierra Solutions CSSCass County isCastalia,Rock,

343

Method and apparatus for determining two-phase flow in rock fracture  

DOE Patents [OSTI]

An improved method and apparatus as disclosed for measuring the permeability of multiple phases through a rock fracture. The improvement in the method comprises delivering the respective phases through manifolds to uniformly deliver and collect the respective phases to and from opposite edges of the rock fracture in a distributed manner across the edge of the fracture. The improved apparatus comprises first and second manifolds comprising bores extending within porous blocks parallel to the rock fracture for distributing and collecting the wetting phase to and from surfaces of the porous blocks, which respectively face the opposite edges of the rock fracture. The improved apparatus further comprises other manifolds in the form of plenums located adjacent the respective porous blocks for uniform delivery of the non-wetting phase to parallel grooves disposed on the respective surfaces of the porous blocks facing the opposite edges of the rock fracture and generally perpendicular to the rock fracture.

Persoff, Peter (Oakland, CA); Pruess, Karsten (Berkeley, CA); Myer, Larry (Benicia, CA)

1994-01-01T23:59:59.000Z

344

Micromachined low frequency rocking accelerometer with capacitive pickoff  

DOE Patents [OSTI]

A micro electro mechanical sensor that uses capacitive readout electronics. The sensor involves a micromachined low frequency rocking accelerometer with capacitive pickoff fabricated by deep reactive ion etching. The accelerometer includes a central silicon proof mass, is suspended by a thin polysilicon tether, and has a moving electrode (capacitor plate or interdigitated fingers) located at each end the proof mass. During movement (acceleration), the tethered mass moves relative to the surrounding packaging, for example, and this defection is measured capacitively by a plate capacitor or interdigitated finger capacitor, having the cooperating fixed electrode (capacitor plate or interdigitated fingers) positioned on the packaging, for example. The micromachined rocking accelerometer has a low frequency (<500 Hz), high sensitivity (.mu.G), with minimal power usage. The capacitors are connected to a power supply (battery) and to sensor interface electronics, which may include an analog to digital (A/D) converter, logic, RF communication link, antenna, etc. The sensor (accelerometer) may be, for example, packaged along with the interface electronics and a communication system in a 2".times.2".times.2" cube. The proof mass may be asymmetric or symmetric. Additional actuating capacitive plates may be used for feedback control which gives a greater dynamic range.

Lee, Abraham P. (Arlington, VA); Simon, Jonathon N. (San Leandro, CA); McConaghy, Charles F. (Livermore, CA)

2001-01-01T23:59:59.000Z

345

Fluid-Rock Characterization and Interactions in NMR Well Logging  

SciTech Connect (OSTI)

The objective of this report is to characterize the fluid properties and fluid-rock interactions that are needed for formation evaluation by NMR well logging. The advances made in the understanding of NMR fluid properties are summarized in a chapter written for an AAPG book on NMR well logging. This includes live oils, viscous oils, natural gas mixtures, and the relation between relaxation time and diffusivity. Oil based drilling fluids can have an adverse effect on NMR well logging if it alters the wettability of the formation. The effect of various surfactants on wettability and surface relaxivity are evaluated for silica sand. The relation between the relaxation time and diffusivity distinguishes the response of brine, oil, and gas in a NMR well log. A new NMR pulse sequence in the presence of a field gradient and a new inversion technique enables the T{sub 2} and diffusivity distributions to be displayed as a two-dimensional map. The objectives of pore morphology and rock characterization are to identify vug connectivity by using X-ray CT scan, and to improve NMR permeability correlation. Improved estimation of permeability from NMR response is possible by using estimated tortuosity as a parameter to interpolate between two existing permeability models.

George J. Hirasaki; Kishore K. Mohanty

2005-09-05T23:59:59.000Z

346

Fluid-Rock Characterization and Interactions in NMR Well Logging  

SciTech Connect (OSTI)

The objective of this project is to characterize the fluid properties and fluid-rock interactions that are needed for formation evaluation by NMR well logging. This is the first annual progress report submitted to the DOE. It reports on the work completed during the reporting period even if it may have started before this period. This project is a partnership between Professor George J. Hirasaki at Rice University and Professor Kishore Mohanty at University of Houston. In addition to the DOE, this project is supported by a consortium of oil companies and service companies. The fluid properties characterization has emphasized the departure of live oils from correlations based on dead oils. Also, asphaltic components can result in a difference between the T1 and T2 relaxation time distributions as well as reduce the hydrogen index. The fluid rock characterizations that are reported here are the effects of wettability and internal magnetic field gradients. A pore reconstruction method ha s been developed to recreate three-dimensional porous media from two-dimensional images that reproduce some of their key statistical properties. A Monte Carlo simulation technique has been developed to calculate the magnetization decay in fluid saturated porous media given their pore structure.

Hirasaki, George J.; Mohanty, Kishore, K.

2001-07-13T23:59:59.000Z

347

ChemCam rock laser for Mars Science Laboratory "Curiosity"  

ScienceCinema (OSTI)

Los Alamos has a long history of space-related instruments, tied primarily to its role in defense-related treaty verification. Space-based detectors have helped determine the differences between signals from lightning bolts and potential nuclear explosions. LANL-developed gamma-ray detection instruments first revealed the existence of what we now know as gamma-ray bursts, an exciting area of astrophysical research. And the use of LANL instruments on varied space missions continues with such products as the ChemCam rock laser for NASA, shown here. The Engineering Model of the ChemCam Mars Science Laboratory rover instrument arrived at NASA's Jet Propulsion Laboratory on February 6, 2008. The Flight Model was shipped in August, 2010 for installation on the rover at JPL. ChemCam will use imaging and laser-induced breakdown spectroscopy (LIBS) to determine rock and soil compositions on Mars, up to 9 meters from the rover. The engineering model is being integrated into the rover test bed for the development and testing of the rover software. The actual flight model components were concurrently assembled at Los Alamos and in Toulouse, France. The Mars Science Laboratory is scheduled to launch in 2011. Animations courtesy of JPL/NASA.

Wiens, Roger

2014-08-12T23:59:59.000Z

348

ChemCam Rock Laser for the Mars Science Laboratory  

ScienceCinema (OSTI)

Los Alamos has a long history of space-related instr... Los Alamos has a long history of space-related instruments, tied primarily to its role in defense-related treaty verification. Space-based detectors have helped determine the differences between signals from lightning bolts and potential nuclear explosions. LANL-developed gamma-ray detection instruments first revealed the existence of what we now know as gamma-ray bursts, an exciting area of astrophysical research. And the use of LANL instruments on varied space missions continues with such products as the ChemCam rock laser for NASA, shown here. The Engineering Model of the ChemCam Mars Science Laboratory rover instrument arrived at NASA's Jet Propulsion Laboratory on February 6, 2008. ChemCam will use imaging and laser-induced breakdown spectroscopy (LIBS) to determine rock and soil compositions on Mars, up to 9 meters from the rover. The engineering model is being integrated into the rover test bed for the development and testing of the rover software. The actual flight model components are concurrently being assembled at Los Alamos and in Toulouse, France, and will be delivered to JPL in July. The Mars Science Laboratory is scheduled to launch in 2009. Animations courtesy of JPL/NASA.

LANL

2009-09-01T23:59:59.000Z

349

Release of uranium and thorium from granitic rocks during in situ weathering and initial erosion  

E-Print Network [OSTI]

their concentrations in unweathered or slightly weathered granitic rocks, soils developed on granitic rocks, and material from a granitic source transported by a local stream. "Uranium maps", obtained by fission track analysis, are used to understand the mode... OF URANIUM AND THORIUM IN THE GRANITIC 17 19 30 30 31 38 SOURCE ROCKS . 44 REDISTRIBUTION OF URANIUM AND THORIUM IN GRANITIC MATERIALS DURING IN SITU WEATHERING AND INITIAL EROSION 77 CONCLUSIONS. REFERENCES APPENDIX VITA 105 108 112 113...

Ledger, Ernest Broughton

1978-01-01T23:59:59.000Z

350

Petrography and prediction of reservoir rock properties in the Sussex Sandstone, Powder River Basin, Wyoming  

E-Print Network [OSTI]

to determine rock composition and texture. Composition was established by point count of 100 grains. Framework grains were identified and counted as monocrystalline quartz, polycrystalline quartz, volcanic rock fragments, potassium feldspar, plagioclase... and quiet water deposition of shale was resumed. The sandstone is classified as a volcanic aronite based on a det: ital composition averaging 59 percent quartz, including both monccrystalline and polycrystalline varieties, 18 percent rock frag- ments...

Shirley, Richard Hoyt

1977-01-01T23:59:59.000Z

351

E-Print Network 3.0 - archaean sedimentary rocks Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

the Archaean," the rocks are ... Source: Hamilton, Warren B. - Department of Geophysics, Colorado School of Mines Collection: Geosciences 87 Geologic Time Name...

352

Stable-Isotope Studies Of Rocks And Secondary Minerals In A Vapor...  

Open Energy Info (EERE)

and calcite whose 18O values record the temperatures and isotopic compositions of fluids prevailing during at least two different episodes of rock-fluid interaction. The first...

353

E-Print Network 3.0 - altered granitic rock Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

whereas Turgutlu rocks can be considered ... Source: UCLA, Ion Microprobe Facility Collection: Geosciences Page: << < 1 2 3 4 5 > >> Page: << < 1 2 3 4 5 > >> 41...

354

Bibliography of the geological and geophysical aspects of hot dry rock geothermal resources  

SciTech Connect (OSTI)

This is the first issue of an annual compilation of references that are useful to the exploration, understanding and development of the hot dry rock geothermal resource.

Heiken, G.; Sayer, S.

1980-02-01T23:59:59.000Z

355

On White's model of attenuation in rocks with partial gas saturation  

E-Print Network [OSTI]

approximate theory for the calculation of attenuation and dispersion of compressional seismic waves in porous rocks filled mostly with brine but containing ...

Dutta, N. C.; Seriff, A. J.

356

DESCRIPTION OF THE BAKKEN FORMATION’S ROCK PROPERTIES OF THE WILLISTON BASIN, NORTH DAKOTA.  

E-Print Network [OSTI]

??It is possible to determine rock properties by utilizing seismic inversion techniques. The inversion technique is the most frequently used, by which the seismic interpreters… (more)

Kocoglu, Sebnem 1983-

2013-01-01T23:59:59.000Z

357

Rock Sampling At Blue Mountain Geothermal Area (U.S. Geological...  

Open Energy Info (EERE)

search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Rock Sampling At Blue Mountain Geothermal Area (U.S. Geological Survey, 2012) Exploration Activity Details...

358

Rock, Mineral, Coal, Oil, and Gas Resources on State Lands (Montana)  

Broader source: Energy.gov [DOE]

This chapter authorizes and regulates prospecting permits and mining leases for the exploration and development of rock, mineral, oil, coal, and gas resources on state lands.

359

Petrophysical rock classification in the Cotton Valley tight-gas sandstone reservoir with a clustering  

E-Print Network [OSTI]

Petrophysical rock classification in the Cotton Valley tight-gas sandstone reservoir classification method with field data acquired in the Cotton Valley tight-gas sandstone reservoir located

Torres-Verdín, Carlos

360

E-Print Network 3.0 - acid rock discharges Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

dioxide from acidic brine. For a brine-rock ... Source: Heller, Paul - Department of Geology and Geophysics, University of Wyoming Collection: Geosciences 55 Chapter 1....

Note: This page contains sample records for the topic "rock lithology geochemistry" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

A Sr-Isotopic Comparison Between Thermal Waters, Rocks, And Hydrotherm...  

Open Energy Info (EERE)

Sr-Isotopic Comparison Between Thermal Waters, Rocks, And Hydrothermal Calcites, Long Valley Caldera, California Jump to: navigation, search OpenEI Reference LibraryAdd to library...

362

Paradox of Peroxy Defects and Positive Holes in Rocks Part II: Outflow of Electric Currents from Stressed Rocks  

E-Print Network [OSTI]

Understanding the electrical properties of rocks is of fundamental interest. We report on currents generated when stresses are applied. Loading the center of gabbro tiles, 30x30x0.9 cm$^3$, across a 5 cm diameter piston, leads to positive currents flowing from the center to the unstressed edges. Changing the constant rate of loading over 5 orders of magnitude from 0.2 kPa/s to 20 MPa/s produces positive currents, which start to flow already at low stress levels, <5 MPa. The currents increase as long as stresses increase. At constant load they flow for hours, days, even weeks and months, slowly decreasing with time. When stresses are removed, they rapidly disappear but can be made to reappear upon reloading. These currents are consistent with the stress-activation of peroxy defects, such as O$_3$Si-OO-SiO$_3$, in the matrix of rock-forming minerals. The peroxy break-up leads to positive holes h$^{\\bullet}$, i.e. electronic states associated with O$^-$ in a matrix of O$^{2-}$, plus electrons, e'. Propagating...

Scoville, John; Freund, Friedemann

2015-01-01T23:59:59.000Z

363

Predicting the transport properties of sedimentary rocks from microgeometry  

SciTech Connect (OSTI)

We investigate through analysis and experiment how pore geometry, topology, and the physics and chemistry of mineral-fluid and fluid-fluid interactions affect the flow of fluids through consolidated/partially consolidated porous media. Our approach is to measure fluid permeability and electrical conductivity of rock samples using single and multiple fluid phases that can be frozen in place (wetting and nonwetting) over a range of pore pressures. These experiments are analyzed in terms of the microphysics and microchemistry of the processes involved to provide a theoretical basis for the macroscopic constitutive relationships between fluid-flow and geophysical properties that we develop. The purpose of these experiments and their analyses is to advance the understanding of the mechanisms and factors that control fluid transport in porous media. This understanding is important in characterizing porous media properties and heterogeneities before simulating and monitoring the progress of complex flow processes at the field scale in permeable media.

Schlueter, E.M.

1993-01-01T23:59:59.000Z

364

Predicting the transport properties of sedimentary rocks from microgeometry  

SciTech Connect (OSTI)

The author investigates through analysis and experiment how pore geometry, topology, and the physics and chemistry of mineral-fluid and fluid-fluid interactions affect the flow of fluids through consolidated/partially consolidated porous media. The approach is to measure fluid permeability and electrical conductivity of rock samples using single and multiple fluid phases that can be frozen in place (wetting and nonwetting) over a range of pore pressures. These experiments are analyzed in terms of the microphysics and microchemistry of the processes involved to provide a theoretical basis for the macroscopic constitutive relationships between fluid-flow and geophysical properties that the authors develop. The purpose of these experiments and their analyses is to advance the understanding of the mechanisms and factors that control fluid transport in porous media. This understanding is important in characterizing porous media properties and heterogeneities before simulating and monitoring the progress of complex flow processes at the field scale in permeable media.

Schlueter, E.M.

1995-02-01T23:59:59.000Z

365

Saturated Zone Plumes in Volcanic Rock: Implications for Yucca Mountain  

SciTech Connect (OSTI)

This paper presents a literature survey of the occurrences of radionuclide plumes in saturated, fractured rocks. Three sites, Idaho National laboratory, Hanford, and Oak Ridge are discussed in detail. Results of a modeling study are also presented showing that the length to width ratio of a plume starting within the repository footprint at the Yucca Mountain Project site, decreases from about 20:1 for the base case to about 4:1 for a higher value of transverse dispersivity, indicating enhanced lateral spreading of the plume. Due to the definition of regulatory requirements, this lateral spreading does not directly impact breakthrough curves at the 18 km compliance boundary, however it increases the potential that a plume will encounter reducing conditions, thus significantly retarding the transport of sorbing radionuclides.

S. Kelkar; R. Roback; B. Robinson; G. Srinivasan; C. Jones; P. Reimus

2006-02-14T23:59:59.000Z

366

Seismic-Scale Rock Physics of Methane Hydrate  

SciTech Connect (OSTI)

We quantify natural methane hydrate reservoirs by generating synthetic seismic traces and comparing them to real seismic data: if the synthetic matches the observed data, then the reservoir properties and conditions used in synthetic modeling might be the same as the actual, in-situ reservoir conditions. This approach is model-based: it uses rock physics equations that link the porosity and mineralogy of the host sediment, pressure, and hydrate saturation, and the resulting elastic-wave velocity and density. One result of such seismic forward modeling is a catalogue of seismic reflections of methane hydrate which can serve as a field guide to hydrate identification from real seismic data. We verify this approach using field data from known hydrate deposits.

Amos Nur

2009-01-08T23:59:59.000Z

367

Rock Island Dam Smolt Monitoring; 1996 Annual Report.  

SciTech Connect (OSTI)

Downstream migrating salmon and steelhead (Oncoryhnchus spp.) smolts were monitored at the Rock Island Dam bypass trap from April 1--August 31, 1996. This was the twelfth consecutive year that the bypass trap was monitored. Data collected included: (1) number of fish collected by species, (2) number of fin clipped and/or Passive Integrated Transponder (PIT) tagged fish caught by species, (3) total number of fish showing signs of gas bubble trauma (GBT), (4) percent of descaled fish, and (5) daily average river flow, powerhouse {number_sign}1 flow, powerhouse {number_sign}2 flow and daily average spill. These data were transmitted to the Fish Passage Center (FPC), which manages the Smolt Monitoring Program throughout the Columbia River Basin. The Smolt Monitoring Program is used to manage the water budget, releasing upstream reservoir water storage allocated to supplement river flows during the downstream migration of juvenile salmonids.

McDonald, Robert (Chelan County Public Utility District No. 1, Power Operations Department, Wenatchee, WA)

1996-10-01T23:59:59.000Z

368

CO/sub 2/ foam flooding performance vs. rock wettability  

SciTech Connect (OSTI)

CO/sub 2/ flooding projects have shown large potential for oil recovery, but in many cases the volumetric sweep efficiency is greatly limited by gravity tonguing and/or viscous fingering. To reduce these effects foam could be used as an alternative to WAG CO/sub 2/ injection. Experiments on the CO/sub 2/ foam process were conducted in a 1/4 5-spot reservoir model in order to investigate the effect of rock wetting state and total CO/sub 2/ slug size on secondary and tertiary extra-oil recovery. Laboratory model results show that the process is more successful in an oil-wet medium than in a water-wet medium due to larger surfactant adsorption in the water-wet medium. Also, requirements for optimal CO/sub 2/ slug size are smaller than in the WAG process, with larger extra oil recovery for both secondary and tertiary floods.

Lescure, B.M.; Claridge, E.L.

1986-01-01T23:59:59.000Z

369

USING RECENT ADVANCES IN 2D SEISMIC TECHNOLOGY AND SURFACE GEOCHEMISTRY TO ECONOMICALLY REDEVELOP A SHALLOW SHELF CARBONATE RESERVOIR: VERNON FIELD, ISABELLA COUNTY, MI  

SciTech Connect (OSTI)

One of the main objectives of this demonstration project is to test surface geochemical techniques for detecting trace amounts of light hydrocarbons in pore gases as a means of reducing risk in hydrocarbon exploration and production. As part of the project, several field demonstrations were undertaken to assess the validity and usefulness of the microbial surface geochemical technique. The important observations from each of these field demonstrations are briefly reviewed in this annual report. These demonstrations have been successful in identifying the presence or lack of hydrocarbons in the subsurface and can be summarized as follows: (1) The surface geochemistry data showed a fair-to-good microbial anomaly that may indicate the presence of a fault or stratigraphic facies change across the drilling path of the State Springdale & O'Driscoll No.16-16 horizontal demonstration well in Manistee County, Michigan. The well was put on production in December 2003. To date, the well is flowing nearly 100 barrels of liquid hydrocarbons per day plus gas, which is a good well in Michigan. Reserves have not been established yet. Two successful follow-up horizontal wells have also been drilled in the Springdale area. Additional geochemistry data will be collected in the Springdale area in 2004. (2) The surface geochemistry sampling in the Bear Lake demonstration site in Manistee County, Michigan was updated after the prospect was confirmed and production begun; the original subsurface and seismic interpretation used to guide the location of the geochemical survey for the Charlich Fauble re-entry was different than the interpretation used by the operator who ultimately drilled the well. As expected, the anomaly appears to be diminishing as the positive (apical) microbial anomaly is replaced by a negative (edge) anomaly, probably due to the pressure draw-down in the reservoir. (3) The geochemical sampling program over the Vernon Field, Isabella County, Michigan is now interpreted as a large negative anomaly associated with the entire field. The results of the State Smock horizontal well and the Bowers 4-25 well confirmed the lack of additional recoverable hydrocarbons in the Vernon Field. (4) The surface geochemistry data showed a strong anomaly in the Myrtle Beach, Burke County, North Dakota area that would justify drilling by itself and even more so in conjunction with the structural interpretation from the geological and geophysical data; the microbial values here were the highest we have observed. The Myrtle Beach geochemical survey indicated a good to excellent prospect which was confirmed by drilling, however, a pipeline has not yet been completed that would allow the wells to be placed into production. We also present in this annual report the results of recent efforts to map carbonate facies tracts in the middle Devonian Dundee and Rogers City Limestones using gamma ray, bulk density, and photoelectric effect geophysical well log amplitudes. This work was undertaken to identify fairways for exploration in the Dundee and Rogers City where surface geochemical techniques could then be used to screen potential leads.

James R. Wood; A. Wylie; W. Quinlan

2004-04-01T23:59:59.000Z

370

Spatial statistics for predicting flow through a rock fracture  

SciTech Connect (OSTI)

Fluid flow through a single rock fracture depends on the shape of the space between the upper and lower pieces of rock which define the fracture. In this thesis, the normalized flow through a fracture, i.e. the equivalent permeability of a fracture, is predicted in terms of spatial statistics computed from the arrangement of voids, i.e. open spaces, and contact areas within the fracture. Patterns of voids and contact areas, with complexity typical of experimental data, are simulated by clipping a correlated Gaussian process defined on a N by N pixel square region. The voids have constant aperture; the distance between the upper and lower surfaces which define the fracture is either zero or a constant. Local flow is assumed to be proportional to local aperture cubed times local pressure gradient. The flow through a pattern of voids and contact areas is solved using a finite-difference method. After solving for the flow through simulated 10 by 10 by 30 pixel patterns of voids and contact areas, a model to predict equivalent permeability is developed. The first model is for patterns with 80% voids where all voids have the same aperture. The equivalent permeability of a pattern is predicted in terms of spatial statistics computed from the arrangement of voids and contact areas within the pattern. Four spatial statistics are examined. The change point statistic measures how often adjacent pixel alternate from void to contact area (or vice versa ) in the rows of the patterns which are parallel to the overall flow direction. 37 refs., 66 figs., 41 tabs.

Coakley, K.J.

1989-03-01T23:59:59.000Z

371

The UK geothermal hot dry rock R&D programme  

SciTech Connect (OSTI)

The UK hot dry rock research and development programme is funded by the Department of Energy and aims to demonstrate the feasibility of commercial exploitation of HDR in the UK. The philosophy of the UK programme has been to proceed to a full-scale prototype HDR power station via a number of stages: Phase 1--Experiments at shallow depth (300 m) to assess the feasibility of enhancing the permeability of the rock. Phase 2--Studies at intermediate depth (2500 m) to determine the feasibility of creating a viable HDR subsurface heat exchanger. Phase 3--Establishment of an HDR prototype at commercial depth. The programme has run over a 15 year period, and has been formally reviewed at stages throughout its progress. The 1987 review towards the end of Phase 2 identified a number of technical objectives for continuing research and proposed that the initial design stage of the deep HDR prototype should start. Phase 3A is now complete. It addressed: the feasibility of creating an underground HDR heat exchanger suitable for commercial operation; techniques for improving hydraulic performance and correcting short circuits in HDR systems; modeling of the performance, resource size and economic aspects of HDR systems. The work has been conducted by a number of contractors, including Cambome School of Mines, Sunderland and Sheffield City Polytechnics and RTZ Consultants Limited. This paper focuses upon the experimental work at Rosemanowes in Cornwall and the recently completed conceptual design of a prototype HDR power station. The economics of HDR-generated electricity are also discussed and the conclusions of a 1990 program review are presented. Details of the HDR program to 1994, as announced by the UK Department of Energy in February 1991, are included.

MacDonald, Paul; Stedman, Ann; Symons, Geoff

1992-01-01T23:59:59.000Z

372

Source and tectono-metamorphic evolution of mafic and pelitic metasedimentary rocks from the central Quetico metasedimentary belt, Archean Superior Province  

E-Print Network [OSTI]

Source and tectono-metamorphic evolution of mafic and pelitic metasedimentary rocks from, was conducted in order to evaluate the origin, source and evolution of sedimentary rocks, including mafic rocks previously mapped as ultramafics rocks. Bulk chemical compositions of these rocks show a mixing with two end

Paris-Sud XI, Université de

373

Can Rock-Eval pyrolysis assess the biogeochemical composition of organic matter during peatification?  

E-Print Network [OSTI]

as a screening tool to investigate soil organic matter (SOM) chemistry and vulnerability. In order to test the validity of Rock-Eval as an indicator of SOM chemistry and of OM transformations, we compared classical Rock-Eval-derived parameters (Total Organic Carbon - TOC, Hydrogen Index - HI and Oxygen Index - OI

Boyer, Edmond

374

Final Report: Geothermal Dual Acoustic Tool for Measurement of Rock Stress  

SciTech Connect (OSTI)

This paper outlines the technology need for a rock formation stress measurement in future EGS wells. This paper reports on the results of work undertaken under a Phase I, DOE/SBIR on the feasibility to build an acoustic well logging tool for measuring rock formation stress.

Normann, Randy A.

2014-12-01T23:59:59.000Z

375

Using LIDAR in Highway Rock Cuts Norbert H. Maerz, Ph. D., P. Eng,  

E-Print Network [OSTI]

the data needed to begin the process of modeling the rock raveling process. INTRODUCTION LIDAR damage, injury, and even death. Highways impeded by even small spills of rock material by blasting techniques to facilitate the highway construction. A constant danger to the motoring public

Maerz, Norbert H.

376

Diffusion-driven extreme lithium isotopic fractionation in country rocks of the Tin Mountain pegmatite  

E-Print Network [OSTI]

Diffusion-driven extreme lithium isotopic fractionation in country rocks of the Tin Mountain rocks (amphibolites and schists) of the Tin Mountain pegmatite show systematic changes with distance; fluid infiltration; Tin Mountain pegmatite 1. Introduction Lithium is a fluid-mobile, moderately

Mcdonough, William F.

377

RIS-M-2260 HEAT GRADIENT INDUCED MIGRATION OF BRINE INCLUSIONS IN ROCK SALT  

E-Print Network [OSTI]

RISØ-M-2260 HEAT GRADIENT INDUCED MIGRATION OF BRINE INCLUSIONS IN ROCK SALT Mathematical treatment project. Abstract. A mathematical model for the brine migration in rock salt around an infinite line heat source is set up. The tempera- ture field around the time dependent heat source is calculated by use

378

Organic carbon sources and transformations in mangrove sediments: A Rock-Eval pyrolysis approach  

E-Print Network [OSTI]

Organic carbon sources and transformations in mangrove sediments: A Rock-Eval pyrolysis approach C'Orléans, CNRS/INSU, Université d'Orléans, 1A rue de la Férollerie, 45071 Orléans, France Abstract A Rock cycling in this specific environment using a method that allows monitoring the depth evolution of sources

Paris-Sud XI, Université de

379

Assimilation of Ultramafic Rock in Subduction-Related Magmatic Arcs Author(s): Peter B. Kelemen  

E-Print Network [OSTI]

Assimilation of Ultramafic Rock in Subduction-Related Magmatic Arcs Author(s): Peter B. Kelemen Source: The Journal of Geology, Vol. 94, No. 6 (Nov., 1986), pp. 829-843 Published by: The University. http://www.jstor.org #12;ASSIMILATION OF ULTRAMAFIC ROCK IN SUBDUCTION-RELATED MAGMATIC ARCS1 PETER B

380

Characterizing Hydraulic Properties and Ground-Water Chemistry in Fractured-Rock Aquifers: A User's Manual  

E-Print Network [OSTI]

Characterizing Hydraulic Properties and Ground-Water Chemistry in Fractured-Rock Aquifers: A User source for science about the Earth, its natural and living resources, natural hazards., 2007, Characterizing hydraulic properties and ground-water chemistry in fractured-rock aquifers: A user

Note: This page contains sample records for the topic "rock lithology geochemistry" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

TERRESTRIAL ROCK VARNISH: A KEY TO UNDERSTANDING THE SURFACE COMPOSITION OF MARS. J. G. Ward1  

E-Print Network [OSTI]

TERRESTRIAL ROCK VARNISH: A KEY TO UNDERSTANDING THE SURFACE COMPOSITION OF MARS. J. G. Ward1 , L produces a strong spectral band contrast. This also gives varnish its shiny appearance. On Earth rock varnish may have a microbial origin [3]. Clays are transported from an external source and deposited

Kirkland, Laurel

382

Rock magnetic investigation of possible sources of the Bangui magnetic anomaly1 , M., Quesnel2*  

E-Print Network [OSTI]

Rock magnetic investigation of possible sources of the Bangui magnetic anomaly1 2 Ouabego1,2 , M slices of such28 metamorphic rocks, or by an iron-rich mafic source, or by a combination of these two29 source using constraints19 from satellite and ground magnetic field measurements, as well as from surface

Boyer, Edmond

383

alternative is rock or other noncombustible material; avoid bark or wood chip mulch in  

E-Print Network [OSTI]

alternative is rock or other noncombustible material; avoid bark or wood chip mulch in this area. 6 needles and leaves to eliminate an ignition source for firebrands, especially during the hot, dry weather escape drill. Know where safety areas are within your subdivision. Meadows, rock outcrops, and wide roads

384

SOURCES AND EFFECTS OF MINING-RELATED AND NATURAL ACID ROCK DRAINAGE QUANTIFIED USING TRACER  

E-Print Network [OSTI]

SOURCES AND EFFECTS OF MINING-RELATED AND NATURAL ACID ROCK DRAINAGE QUANTIFIED USING TRACER, and Architectural Engineering 2006 #12;ii This thesis entitled: Sources and Effects of Mining-Related and Natural Acid Rock Drainage Quantified Using Tracer Dilution, Coal Creek Watershed, Gunnison County, Colorado

Ryan, Joe

385

Eric Moulton, Ferri Hassani, Pejman Nekoovaght Microwave-Assisted Heating in Rock  

E-Print Network [OSTI]

Eric Moulton, Ferri Hassani, Pejman Nekoovaght Microwave-Assisted Heating in Rock INTRODUCTION to expensive replacements. Expansive heating through microwaves breaks up the rock, which reduces the stress the mechanisms and parameters governing the heating rate of a material. Department of Mining and Materials

Barthelat, Francois

386

Vug waves: A mechanism for coupled rock deformation and fluid migration  

E-Print Network [OSTI]

Vug waves: A mechanism for coupled rock deformation and fluid migration Jason Phipps Morgan-migration mechanism in which a rock deforms by the movement of a penny-shaped, fluid-filled crack dislocation across, Minneapolis, Minnesota 55455, USA (holtz007@tc.umn.edu) [1] Vug waves are a joint deformation/fluid

Holtzman, Ben

387

LABORATORY INVESTIGATIONS ON THE HYDRAULIC AND THERMOMECHANICAL PROPERTIES OF FRACTURED CRYSTALLINE ROCKS  

E-Print Network [OSTI]

of in s i t u j o i n t e d granite." I n t . J . Rock Mech.1979. "Waste disposal i n granite: Preliminary r e s u l t sintact samples of basalt, granite, marble, and other rocks.

Witherspoon, P.A.

2010-01-01T23:59:59.000Z

388

Isotope systematics of ore-bearing granites and host rocks of the Orlovka-Spokoinoe mining  

E-Print Network [OSTI]

Isotope systematics of ore-bearing granites and host rocks of the Orlovka-Spokoinoe mining district and Spokoinoe granite massifs and their host rocks in the Orlovka- Spokoinoe mining district, Eastern Transbaikalia, Russia. Pb isotope analyses indicate one common Pb source for all three granite massifs

Siebel, Wolfgang

389

Who are Climbing the Walls? An Exploration of the Social World of Indoor Rock Climbing  

E-Print Network [OSTI]

and attention has been focused on completing my study. I would like to thank the rock climbing community at Texas A&M for being so welcoming and for being willing to open up their community and share themselves with the leisure studies world. They have... ................................................................................. 39 Serious Leisure .................................................................... 44 Indoor Rock Climbing Social World ? The Climbing Community...

Kurten, Jason Henry

2011-02-22T23:59:59.000Z

390

IMA Preprints Series (2002) Micro-and macro-scopic models of rock fracture  

E-Print Network [OSTI]

IMA Preprints Series (2002) Micro- and macro-scopic models of rock fracture Donald L. Turcotte to some earthquakes. Key words: rock mechanics, damage, fracture, critical point, power-law scaling, self involve a sin- gle fracture propagating through an homogeneous solid. However, this is an idealized case

391

IMA Preprints Series (2002) Micro and macroscopic models of rock fracture  

E-Print Network [OSTI]

IMA Preprints Series (2002) Micro­ and macro­scopic models of rock fracture Donald L. Turcotte to some earthquakes. Key words: rock mechanics, damage, fracture, critical point, power­law scaling, self involve a sin­ gle fracture propagating through an homogeneous solid. However, this is an idealized case

392

IntroductIon The range-restricted Rock Firefinch Lagonosticta sangui  

E-Print Network [OSTI]

conservation importance within the Jos Plateau Forest-Grassland Mosaic eco-region, Nigeria. Typical of the Jos Plateau landscape are rocky outcrops and isolated, sparsely vegetated granitic hills of rounded bare rock of the habitat associations and population density of the Rock Firefinch have centered on the Amurum Forest

de Villiers, Marienne

393

NITROGEN REMOVAL FOR ON-SITE SEWAGE DISPOSAL: A RECIRCULATING SAND FILTER/ROCK TANK DESIGN  

E-Print Network [OSTI]

NITROGEN REMOVAL FOR ON-SITE SEWAGE DISPOSAL: A RECIRCULATING SAND FILTER/ROCK TANK DESIGN, C. G. McKiel ABSTRACT: The nitrogen removal abilities of recirculating sand filter/rock tank (RSF) systems and conventional septic tank/soil absorption trench systems were compared in a field laboratory

Gold, Art

394

Mineralogical characterization of protolith and fault rocks from the SAFOD Main Hole  

E-Print Network [OSTI]

Mineralogical characterization of protolith and fault rocks from the SAFOD Main Hole John G. Solum influence is not yet fully known. Faults containing these mineralogical phases are prime candidates), Mineralogical characterization of protolith and fault rocks from the SAFOD Main Hole, Geophys. Res. Lett., 33, L

395

Organic solvent alteration of hydraulic properties of sedimentary rocks of low permeability: a review  

SciTech Connect (OSTI)

A review of the current literature on hydrophysical interactions of organic solutes with sedimentary rocks of low permeability is presented. The motivation was the premise that low permeability rocks may act as secondary (aquifer) barriers for the containment of hazardous organic wastes, thus preventing these wastes from contaminating the groundwater. However, this premise may be incorrect if organic wastes can affect the hydraulic conductivity of these rocks. The results indicate that very little work has been done concerning interactions of organics with consolidated subsurface materials. Available information on three related topics was summarized: the effect of organic compounds on the hydrophysical properties of clays, case studies concerning the interactions of organic compounds with clays and sedimentary rocks, and the effect of shales on inorganic transport. These studies give an indication of some research areas that need to be explored with regard to the effect of organic compounds on the hydrophysical properties of sedimentary rocks; these research needs are briefly summarized. 42 refs.

Sklarew, D.S.

1985-05-01T23:59:59.000Z

396

Organic geochemistry of continental margin and deep ocean sediments. Progress report, 1 March 1991--28 February 1993  

SciTech Connect (OSTI)

Objective was to study petroleum formation, migration, and accumulation in marine sediments. Collaboration in Global Basin Research Network (GBRN) showed that the hydrocarbon parameters used in oil exploration are also valuable in understanding sedimentary basin fluid flow processes, crucial to production of drinking water, metal ore deposits, and gas and oil. Two goals are : (1) to run hydrous pyrolysis experiments on immature gas-prone source rocks, in order to evaluate the potential influence of gas evolution on oil migration and subsurface pressurization, and (2) to integrate organic geochemical data from the Louisiana Gulf Coast into GBRN subsurface visualization and computer modeling. Experimental methods (petrography, EPR, thermogravimetric Fourier transform infrared spectroscopy) were also studied.

Whelan, J.K.; Hunt, J.M.; Seewald, J.M.; Eglinton, L.B.; Zawoysky, M.; Dickinson, P.; Dickneider, T.

1992-09-01T23:59:59.000Z

397

Use of ``rock-typing`` to characterize carbonate reservoir heterogeneity. Final report  

SciTech Connect (OSTI)

The objective of the project was to apply techniques of ``rock-typing`` and quantitative formation evaluation to borehole measurements in order to identify reservoir and non-reservoir rock-types and their properties within the ``C`` zone of the Ordovician Red River carbonates in the northeast Montana and northwest North Dakota areas of the Williston Basin. Rock-typing discriminates rock units according to their pore-size distribution. Formation evaluation estimates porosities and pore fluid saturation. Rock-types were discriminated using crossplots involving three rock-typing criteria: (1) linear relationship between bulk density and porosity, (2) linear relationship between acoustic interval transit-time and porosity, and (3) linear relationship between acoustic interval transit-time and bulk density. Each rock-type was quantitatively characterized by the slopes and intercepts established for different crossplots involving the above variables, as well as porosities and fluid saturations associated with the rock-types. All the existing production was confirmed through quantitative formation evaluation. Highly porous dolomites and anhydritic dolomites contribute most of the production, and constitute the best reservoir rock-types. The results of this study can be applied in field development and in-fill drilling. Potential targets would be areas of porosity pinchouts and those areas where highly porous zones are downdip from non-porous and tight dolomites. Such areas are abundant. In order to model reservoirs for enhanced oil recovery (EOR) operations, a more localized (e.g. field scale) study, expanded to involve other rock-typing criteria, is necessary.

Ikwuakor, K.C.

1994-03-01T23:59:59.000Z

399

Effectiveness of rock wall terraces on soil conservation and crop performance in a southern Honduras steepland farming system  

E-Print Network [OSTI]

The effect that rock wall terraces have on soil and water conservation and crop production was studied on a steepland farm in southern Honduras during the 1995 growing season. The research compared a site with 10 year old rock terraces...

Sierra, Hector Enrique

1996-01-01T23:59:59.000Z

400

Fluid origins, paths, and fluid-rock reactions at convergent margins, using halogens, Cl stable isotopes, and alkali metals as geochemical tracers  

E-Print Network [OSTI]

range kg/yr Cl sources and sinks Water or rock mass mol/kgtemperature at the source of fluid-rock reactions, asto identify the fluid-rock reactions at source. In addition,

Wei, Wei

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rock lithology geochemistry" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Hot dry rock geothermal energy. Draft final report  

SciTech Connect (OSTI)

This second EPRI workshop on hot dry rock (HDR) geothermal energy, held in May 1994, focused on the status of worldwide HDR research and development and used that status review as the starting point for discussions of what could and should be done next: by U.S. federal government, by U.S. industry, by U.S. state governments, and by international organizations or through international agreements. The papers presented and the discussion that took place indicate that there is a community of researchers and industrial partners that could join forces, with government support, to begin a new effort on hot dry rock geothermal development. This new heat mining effort would start with site selection and confirmatory studies, done concurrently. The confirmatory studies would test past evaluations against the most current results (from the U.S. site at Fenton Hill, New Mexico, and from the two sites in Japan, the one in Russia, and the two in western Europe) and the best models of relevant physical and economic aspects. Site selection would be done in the light of the confirmatory studies and would be influenced by the need to find a site where success is probable and which is representative enough of other sites so that its success would imply good prospects for success at numerous other sites. The test of success would be circulation between a pair of wells, or more wells, in a way that confirmed, with the help of flow modeling, that a multi-well system would yield temperatures, flows and lifetimes that support economically feasible power generation. The flow modeling would have to have previously achieved its own confirmation from relevant data taken from both heat mining and conventional hydrothermal geothermal experience. There may be very relevant experience from the enhancement of ''hot wet rock'' sites, i.e., sites where hydrothermal reservoirs lack, or have come to lack, enough natural water or steam and are helped by water injected cold and produced hot. The new site would have to be selected in parallel with the confirmatory studies because it would have to be modeled as part of the studies and because its similarity to other candidate sites must be known well enough to assure that results at the selected site are relevant to many others. Also, the industry partners in the joint effort at the new site must be part of the confirmatory studies, because they must be convinced of the economic feasibility. This meeting may have brought together the core of people who can make such a joint effort take place. EPRI sponsored the organization of this meeting in order to provide utilities with an update on the prospects for power generation via heat mining. Although the emerging rules for electric utilities competing in power generation make it very unlikely that the rate-payers of any one utility (or small group of utilities) can pay the differential to support this new heat mining research and development effort, the community represented at this meeting may be able to make the case for national or international support of a new heat mining effort, based on the potential size and economics of this resource as a benefit for the nation as a whole and as a contribution to reduced emissions of fossil CO{sub 2} worldwide.

Not Available

1994-09-01T23:59:59.000Z

402

Evaluation of Used Fuel Disposition in Clay-Bearing Rock  

SciTech Connect (OSTI)

Radioactive waste disposal in shale/argillite rock formations has been widely considered given its desirable isolation properties (low permeability), geochemically reduced conditions, anomalous groundwater pressures, and widespread geologic occurrence. Clay/shale rock formations are characterized by their high content of clay minerals such as smectites and illites where diffusive transport and chemisorption phenomena predominate. These, in addition to low permeability, are key attributes of shale to impede radionuclide mobility. Shale host-media has been comprehensively studied in international nuclear waste repository programs as part of underground research laboratories (URLs) programs in Switzerland, France, Belgium, and Japan. These investigations, in some cases a decade or more long, have produced a large but fundamental body of information spanning from site characterization data (geological, hydrogeological, geochemical, geomechanical) to controlled experiments on the engineered barrier system (EBS) (barrier clay and seals materials). Evaluation of nuclear waste disposal in shale formations in the USA was conducted in the late 70’s and mid 80’s. Most of these studies evaluated the potential for shale to host a nuclear waste repository but not at the programmatic level of URLs in international repository programs. This report covers various R&D work and capabilities relevant to disposal of heat-generating nuclear waste in shale/argillite media. Integration and cross-fertilization of these capabilities will be utilized in the development and implementation of the shale/argillite reference case planned for FY15. Disposal R&D activities under the UFDC in the past few years have produced state-of-the-art modeling capabilities for coupled Thermal-Hydrological-Mechanical-Chemical (THMC), used fuel degradation (source term), and thermodynamic modeling and database development to evaluate generic disposal concepts. The THMC models have been developed for shale repository leveraging in large part on the information garnered in URLs and laboratory data to test and demonstrate model prediction capability and to accurately represent behavior of the EBS and the natural (barrier) system (NS). In addition, experimental work to improve our understanding of clay barrier interactions and TM couplings at high temperatures are key to evaluate thermal effects as a result of relatively high heat loads from waste and the extent of sacrificial zones in the EBS. To assess the latter, experiments and modeling approaches have provided important information on the stability and fate of barrier materials under high heat loads. This information is central to the assessment of thermal limits and the implementation of the reference case when constraining EBS properties and the repository layout (e.g., waste package and drift spacing). This report is comprised of various parts, each one describing various R&D activities applicable to shale/argillite media. For example, progress made on modeling and experimental approaches to analyze physical and chemical interactions affecting clay in the EBS, NS, and used nuclear fuel (source term) in support of R&D objectives. It also describes the development of a reference case for shale/argillite media. The accomplishments of these activities are summarized as follows: ? Development of a reference case for shale/argillite; ? Investigation of Reactive Transport and Coupled THM Processes in EBS: FY14; ? Update on Experimental Activities on Buffer/Backfill Interactions at elevated Pressure and Temperature; ? Thermodynamic Database Development: Evaluation Strategy, Modeling Tools, First-Principles Modeling of Clay, and Sorption Database Assessment; ? ANL Mixed Potential Model For Used Fuel Degradation: Application to Argillite and Crystalline Rock Environments.

Carlos F. Jové Colón; Philippe F. Weck; David H. Sassani; Liange Zheng; Jonny Rutqvist; Carl I. Steefel; Kunhwi Kim; Seiji Nakagawa; James Houseworth; Jens Birkholzer; Florie A. Caporuscio; Michael Cheshire; Michael S. Rearick; Mary K. McCarney; Mavrik Zavarin; Ana Benedicto; Annie B. Kersting; Mark Sutton; James Jerden; Kurt E. Frey; Jacqueline M. Copple; William Ebert

2014-08-29T23:59:59.000Z

403

Numerical studies of fluid-rock interactions in Enhanced Geothermal Systems (EGS) with CO2 as working fluid  

E-Print Network [OSTI]

2006), “The Future of Geothermal Energy Impact of Enhanced2000), “A Hot Dry Rock Geothermal Energy Concept Utilizing

Xu, Tianfu; Pruess, Karsten; Apps, John

2008-01-01T23:59:59.000Z

404

Modeling of coupled thermodynamic and geomechanical performance of underground compressed air energy storage (CAES) in lined rock caverns  

E-Print Network [OSTI]

reservoir storage project in Sesta, Italy [1]; as well as two pilot tests in rock caverns associated with abandoned

Rutqvist, J.

2013-01-01T23:59:59.000Z

405

INVESTIGATION OF SCALE EFFECTS IN HARD ROCKS Richard Simon, Dept of civil, geological & mining engng cole Polytechnique, Montral, Qubec, Canada  

E-Print Network [OSTI]

with few or no joints. R�SUM� Les roches et massifs rocheux présentent une variation des propriétés and pores to shear bands in rocks, to joints and faults in rock masses. When the volume of the rock. This volume is called large size unit block. At the rock mass scale, where new types of defects are present

Aubertin, Michel

406

RADIOACTIVE WASTE STORAGE IN MINED CAVERNS IN CRYSTALLINE ROCK-RESULTS OF FIELD INVESTIGATIONS AT STRIPA, SWEDEN  

E-Print Network [OSTI]

Waste Storage in Mined Caverns—Program Summary. LawrenceWASTE STORAGE IN MINED CAVERNS IN CRYSTALLINE ROCK- BESULTS

Witherspoon, P.A.

2010-01-01T23:59:59.000Z

407

Fracture and Healing of Rock Salt Related to Salt Caverns  

SciTech Connect (OSTI)

In recent years, serious investigations of potential extension of the useful life of older caverns or of the use of abandoned caverns for waste disposal have been of interest to the technical community. All of the potential applications depend upon understanding the reamer in which older caverns and sealing systems can fail. Such an understanding will require a more detailed knowledge of the fracture of salt than has been necessary to date. Fortunately, the knowledge of the fracture and healing of salt has made significant advances in the last decade, and is in a position to yield meaningful insights to older cavern behavior. In particular, micromechanical mechanisms of fracture and the concept of a fracture mechanism map have been essential guides, as has the utilization of continuum damage mechanics. The Multimechanism Deformation Coupled Fracture (MDCF) model, which is summarized extensively in this work was developed specifically to treat both the creep and fracture of salt, and was later extended to incorporate the fracture healing process known to occur in rock salt. Fracture in salt is based on the formation and evolution of microfractures, which may take the form of wing tip cracks, either in the body or the boundary of the grain. This type of crack deforms under shear to produce a strain, and furthermore, the opening of the wing cracks produce volume strain or dilatancy. In the presence of a confining pressure, microcrack formation may be suppressed, as is often the case for triaxial compression tests or natural underground stress situations. However, if the confining pressure is insufficient to suppress fracture, then the fractures will evolve with time to give the characteristic tertiary creep response. Two first order kinetics processes, closure of cracks and healing of cracks, control the healing process. Significantly, volume strain produced by microfractures may lead to changes in the permeability of the salt, which can become a major concern in cavern sealing and operation. The MDCF model is used in three simulations of field experiments in which indirect measures were obtained of the generation of damage. The results of the simulations help to verify the model and suggest that the model captures the correct fracture behavior of rock salt. The model is used in this work to estimate the generation and location of damage around a cylindrical storage cavern. The results are interesting because stress conditions around the cylindrical cavern do not lead to large amounts of damage. Moreover, the damage is such that general failure can not readily occur, nor does the extent of the damage suggest possible increased permeation when the surrounding salt is impermeable.

Chan, K.S.; Fossum, A.F.; Munson, D.E.

1999-03-01T23:59:59.000Z

408

Geochemistry AFM (Icon) | EMSL  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-SeriesFlickr Flickr Editor'sshort version)Unveils High-TechNatural Magmas

409

Isotopic evidence of a near surface history for the source rocks of the central Coast Plutonic Complex, British Columbia, Canada  

E-Print Network [OSTI]

Isotopic evidence of a near surface history for the source rocks of the central Coast Plutonic portion of the source rocks resided at near surface levels at some time prior to burial and partial an evolved crustal source. We argue that these data indicate that the rocks that formed the source region

Wetmore, Paul H.

410

A LARGE ROCK AVALANCHE ONTO MORSRJKULL GLACIER, SOUTH-EAST ICELAND. ITS IMPLICATIONS FOR ICE-SURFACE EVOLUTION  

E-Print Network [OSTI]

, indicating a rapid process. Photogrammetric studies of the source-area estimates the volume of the rock1 A LARGE ROCK AVALANCHE ONTO MORSÁRJÖKULL GLACIER, SOUTH-EAST ICELAND. ITS IMPLICATIONS FOR ICE, IS-600 Akureyri, Iceland Abstract In spring 2007, a large rock avalanche descended onto

Paris-Sud XI, Université de

411

Isotopic Evidence of a Near Surface History for the Source Rocks of the Central Coast Mountains Batholith, British  

E-Print Network [OSTI]

Isotopic Evidence of a Near Surface History for the Source Rocks of the Central Coast Mountains from 322 Ma to ~50 Ma indicate that the source regions for these rocks were relatively uniform and typical for island arcs around the Pacific. Initial whole-rock 87 Sr/86 Sr range from 0.7032 up to 0

Wetmore, Paul H.

412

Geochemical evidence of a near-surface history for source rocks of the central Coast Mountains Batholith, British Columbia  

E-Print Network [OSTI]

Geochemical evidence of a near-surface history for source rocks of the central Coast Mountains to ,50 Ma, indicate that the source regions for these rocks were relatively uniform and typical abundance of deep crustal or upper-mantle source rocks (DePaolo 1981; Kistler 1990; Chen and Tilton 1991; De

Wetmore, Paul H.

413

Improved microstructure of cement-based composites through the addition of rock wool particles  

SciTech Connect (OSTI)

Rock wool is an inorganic fibrous substance produced by steam blasting and cooling molten glass. As with other industrial by-products, rock wool particles can be used as cementitious materials or ultra fine fillers in cement-based composites. This study investigated the microstructure of mortar specimens produced with cement-based composites that include various forms of rock wool particles. It conducted compressive strength testing, rapid chloride penetration tests, X-ray diffraction analysis, thermo-gravimetric analysis, and scanning electronic microscopy to evaluate the macro- and micro-properties of the cement-based composites. Test results indicate that inclusion of rock wool particles in composites improved compressive strength and reduced chloride ion penetration at the age of 91 days due to the reduction of calcium hydroxide content. Microscopic analysis confirms that the use of rock wool particles contributed to the formation of a denser, more compact microstructure within the hardened paste. In addition, X-ray diffraction analysis shows few changes in formation of pozzolanic reaction products and no new hydrations are formed with incorporating rock wool particles. - Highlights: • We report the microstructural characterization of cement-based composites. • Different mixes produced with various rock wool particles have been tested. • The influence of different mixes on macro and micro properties has been discussed. • The macro properties are included compressive strength and permeability. • XRD and SEM observations confirm the pozzolanic reaction in the resulting pastes.

Lin, Wei-Ting [Dept. of Civil Engineering, National Ilan University, Ilan 26047, Taiwan (China); Institute of Nuclear Energy Research, Atomic Energy Council, Taoyuan 32546, Taiwan (China); Cheng, An, E-mail: ancheng@niu.edu.tw [Dept. of Civil Engineering, National Ilan University, Ilan 26047, Taiwan (China); Huang, Ran; Zou, Si-Yu [Dept. of Harbor and River Engineering, National Taiwan Ocean University, Keelung 20224, Taiwan (China)

2013-10-15T23:59:59.000Z

414

The thermal conductivity of rock under hydrothermal conditions: measurements and applications  

SciTech Connect (OSTI)

The thermal conductivities of most major rock-forming minerals vary with both temperature and confining pressure, leading to substantial changes in the thermal properties of some rocks at the high temperatures characteristic of geothermal systems. In areas with large geothermal gradients, the successful use of near-surface heat flow measurements to predict temperatures at depth depends upon accurate corrections for varying thermal conductivity. Previous measurements of the thermal conductivity of dry rock samples as a function of temperature were inadequate for porous rocks and susceptible to thermal cracking effects in nonporous rocks. We have developed an instrument for measuring the thermal conductivity of water-saturated rocks at temperatures from 20 to 350 °C and confining pressures up to 100 MPa. A transient line-source of heat is applied through a needle probe centered within the rock sample, which in turn is enclosed within a heated pressure vessel with independent controls on pore and confining pressure. Application of this technique to samples of Franciscan graywacke from The Geysers reveals a significant change in thermal conductivity with temperature. At reservoir-equivalent temperatures of 250 °C, the conductivity of the graywacke decreases by approximately 25% relative to the room temperature value. Where heat flow is constant with depth within the caprock overlying the reservoir, this reduction in conductivity with temperature leads to a corresponding increase in the geothermal gradient. Consequently, reservoir temperature are encountered at depths significantly shallower than those predicted by assuming a constant temperature gradient with depth. We have derived general equations for estimating the thermal conductivity of most metamorphic and igneous rocks and some sedimentary rocks at elevated temperature from knowledge of the room temperature thermal conductivity. Application of these equations to geothermal exploration should improve estimates of subsurface temperatures derived from heat flow measurements.

Williams, Colin F.; Sass, John H.

1996-01-24T23:59:59.000Z

415

Inversion of Scattered Waves for Material Properties in Fractured Rock  

SciTech Connect (OSTI)

The authors apply a recently developed low-frequency, non-linear inversion method which includes near and far field terms to a crosshole data set to determine the bulk and shear modulus, as well as the density for a fractured zone in a granitic rock mass. The method uses the scattered elastic wavefield which is extracted from the recorded data before the inversion is performed. The inversion result is appraised by investigating the resolution and standard deviation of the model estimates. The sensitivity of the three parameters to different features of the medium is revealed. While the bulk modulus appears to be sensitive to voids and welded contacts, the density is mostly affected by fractured zones. The shear modulus is least constrained due to the absence of S wave anisotropy information. It is shown that the three medium parameters are generally sensitive to other medium features than those determined by velocity inversions. Thus this method is viewed as a complimentary approach to travel time tomography which provides more insight into the material properties of inhomogeneous media.

Gritto, Roland; Korneev, Valeri A.; Johnson, Lane R.

1999-07-01T23:59:59.000Z

416

Prospects for hot dry rock in the future  

SciTech Connect (OSTI)

The Hot Dry Rock (HDR) geothermal energy program is a renewable energy program that can contribute significantly to the nation's balanced and diversified energy mix. The program was reviewed five times in the past three years. Three of these reviews were done by the US Department of Energy (DOE) and a fourth was conducted by the National Research Council at the request of DOE. In addition, HDR was evaluated in the Energy Research Advisory Board's Solid Earth Sciences Report. Recent economic studies for HDR have been performed by Bechtel National, Inc., the Electric Power Research Institute, and the United Kingdom. These studies are reviewed in light of recent progress at Fenton Hill in reducing drilling costs, and mapping and in identifying drilling targets. All of the attention focused on HDR has resulted in evaluating the way in which HDR fits within the nation's energy mix and in estimating when HDR will contribute to energy security. To establish a framework for evaluating the future of HDR, the status and progress of HDR are reviewed and the remaining Fenton Hill program is outlined. Recommendations are also made for follow-on activities that will lead to achieving full development of HDR technologies in the appropriate time frame.

Berger, M.E.; Murphy, H.D.

1988-01-01T23:59:59.000Z

417

Experimental Control of Transport and Current Reversals in a Deterministic Optical Rocking Ratchet  

E-Print Network [OSTI]

We present an experimental demonstration of a deterministic optical rocking ratchet. A periodic and asymmetric light pattern is created to interact with dielectric microparticles in water, giving rise to a ratchet potential. The sample is moved with respect to the pattern with an unbiased time-periodic rocking function, which tilts the potential in alternating opposite directions. We obtain a current of particles whose direction can be controlled in real time and show that particles of different sizes may experience opposite currents. Moreover, we observed current reversals as a function of the magnitude and period of the rocking force.

Alejandro V. Arzola; Karen Volke-Sepúlveda; José L. Mateos

2011-04-27T23:59:59.000Z

418

Hydrological and water quality characteristics of three rock glaciers: Blanca Massif, Colorado, USA  

E-Print Network [OSTI]

interstitially or as discrete lenses. The geometry of a rock glacier is conducive not only to the formation and growth of ice, but also to the entrapment of water in the fluid state. It is the ice and the trapped water that are important in providing a source... and the trapped water that are important in providing a source for maintaining flow of many alpine streams during the summer. In many alpine areas of the world, streams flow from the frontal slopes of rock glaciers. Although rock glaciers have been studied...

DeMorett, Joseph Lawrence

1989-01-01T23:59:59.000Z

419

Strontium-85 and plutonium-239 sorption in rock samples from the Semipalatinsk Test Site, Kazakhstan  

SciTech Connect (OSTI)

The adsorption and desorption of strontium and plutonium were studied as a function of rock type and simulated ground waters from the Semipalatinsk Test Site (STS). Seven different rock types were obtained from the Balapan Region of the STS and were subjected to x-ray diffraction analyses. Two different ground waters were simulated using data supplied by the National Nuclear Center. The results indicate the sorption of strontium is strongly dependent on the minerals present in the rock species and on the total ionic strength of the ground water whereas, in all cases, plutonium was strongly irreversibly sorbed.

Mason, C.F.V.; Lu, N.; Marusak, N.L.; Scheber, B.; Chipera, S. [Los Alamos National Lab., NM (United States); Daukeyev, D.; Khromushin, I. [National Nuclear Center of the Republic of Kazakhstan, Almaty (Kazakhstan)

1999-03-01T23:59:59.000Z

420

The Effect of Rock Phosphate Upon the Corn Possibility of Phosphoric Acid of the Soil  

E-Print Network [OSTI]

of Veterinary Medicine, A. and M. College of Texas. **In cooperation with United Statee Department of Agriculture. THE EFFECT OF ROCK PHOSPHATE UPON THE CORN POS- SIBILITY OF PHOSPHORIC ACID OF THE SOIL. In connection vith oil-fertilit~ stuclies..., it is important to lcnow the relation between the effect of the phosphoric acid of the rock phosphate on crops and the phosphoric acid that can be withdrawn from the soil by crops. The phosphoric acid of rock phosphate is readily soluble in K/5 nitric acid...

Fraps, G. S. (George Stronach)

1922-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rock lithology geochemistry" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Environmental assessment of remedial action at the Slick Rock uranium mill tailings sites, Slick Rock, Colorado. Revision 1  

SciTech Connect (OSTI)

The Uranium Mill Tailings Radiation Control Act of 1978 (42 USC {section}7901 et seq.), hereafter referred to as the UMTRCA, authorized the US Department of Energy (DOE) to clean up two uranium mill tailings processing sites near Slick Rock, Colorado, in San Miquel County. Contaminated materials cover an estimated 63 acres of the Union Carbide (UC) processing site and 15 ac of the North Continent (NC) processing site. The sites are within 1 mile of each other and are adjacent to the Dolores River. The sites contain concrete foundations of mill buildings, tailings piles, and areas contaminated by windblown and waterborne radioactive tailings materials. The total estimated volume of contaminated materials is approximately 621,300 cubic yards (yd{sup 3}). In addition to the contamination in the two processing site areas, four VPs were found to contain contamination. As a result of the tailings being exposed to the environment, contamination associated with the UC and NC sites has leached into shallow ground water. Surface water has not been affected. The closest residence is approximately 0.3 air mi from either site. The proposed action is to remediate the UC and NC sites by removing all contaminated materials within the designing site boundaries or otherwise associated with the sites, and relocating them to, and stabilizing them at, a location approximately 5 road mi northeast of the sites on land administered by the Bureau of Land Management (BLM).

Not Available

1994-09-01T23:59:59.000Z

422

Geochemistry of V and NI in bitumen and the depositional environment of the Meade Peak phosphatic shale member of the Phosphoria formation in SE Idaho  

SciTech Connect (OSTI)

Stratigraphic and geographic variation in V and Ni abundances and the (V/Ni + V) ration in bitumens from phosphorite and shale of the Meade Peak Member of SE Idaho reflect systematic vertical and lateral changes in environmental conditions during deposition of these rocks. These variations may have been preserved during generation, migration and accumulation of the Phosphoria oil. Thus, V/(Ni + V) ratios are useful geochemical parameters in reconstruction of the depositional environment, discrimination of genetic oil-types, and correlation of oil-source rock of the Phosphoria in the northern Rocky Mountains region.

Sharata, S.M. (Univ. of Idaho, Moscow (USA)); Filby, R.H. (Washington State Univ., Pullman (USA))

1989-03-01T23:59:59.000Z

423

The nature of fire-cracked rock: new insights from ethnoarchaeological and laboratory experiments  

E-Print Network [OSTI]

thermal weathering better than metamorphic or sedimentary rock types. Ethnoarchaeological results are applied to six archaeological FCR features, and provide new insights on the use-history of five of the features. Microscopic observations...

Jackson, Michael A

1998-01-01T23:59:59.000Z

424

Rock Physics Characterization of Organic-Rich Shale Formations to Predict Organic Properties  

E-Print Network [OSTI]

rely on to assess the economic potential of these formations are: total organic carbon (TOC), thermal maturity, hydrocarbon saturation, porosity, mineralogy and brittleness. In this thesis, I investigate rock physics models and methods for the possible...

Bush, Brandon

2013-07-29T23:59:59.000Z

425

GEOTECHNICAL ASSESSMENT AND INSTRUMENTATION NEEDS FOR NUCLEAR WASTE ISOLATION IN CRYSTALLINE AND ARGILLACEOUS ROCKS SYMPOSIUM  

E-Print Network [OSTI]

Rock Mechanics University of Lulea S-95187 Lu1ea SWEDEN Dr.University Q of Lund and Lulea Institute of Technology,bentonite/quartz buffer mass, Lulea Institute of Technology,

Authors, Various

2011-01-01T23:59:59.000Z

426

Experimental Validation of Pore-Level Calculations of Static and Dynamic Petrophysical Properties of Clastic Rocks  

E-Print Network [OSTI]

. The calculations are based on high-resolution three-dimensional (3D) digital images of actual clastic rocks of Petroleum Engineers is prohibited. Permission to reproduce in print is restricted to an ab- stract

Torres-Verdín, Carlos

427

Effects of tunneling on groundwater flow and swelling of clay-sulfate rocks  

E-Print Network [OSTI]

[1] Swelling of clay-sulfate rocks is a major threat in tunneling. It is triggered by the transformation of the sulfate mineral anhydrite into gypsum as a result of water inflow in anhydrite-containing layers after tunnel ...

Butscher, Christoph

428

A STATISTICAL FRACTURE MECHANICS APPROACH TO THE STRENGTH OF BRITTLE ROCK  

E-Print Network [OSTI]

strength-size relation of granite", International Journal ofsample size for Bohus granite", Rock Mechanics, 10, pp201·Point Bending-Sierra White Granite 6.3 Four Point Bending-

Ratigan, J.L.

2010-01-01T23:59:59.000Z

429

Probabilistic Seismic Demand Model and Fragility Estimates for Symmetric Rigid Blocks Subject to Rocking Motions  

E-Print Network [OSTI]

This thesis presents a probability model to predict the maximum rotation of rocking bodies exposed to seismic excitations given specific earthquake intensity measures. After obtaining the nonlinear equations of motion and clarification...

Bakhtiary, Esmaeel

2013-01-15T23:59:59.000Z

430

Properties of CO2-Rich Pore Fluids and Their Effect on Porosity Evolution in EGS Rocks  

Broader source: Energy.gov [DOE]

Project objective: Quantify key parameters critically needed for developing and validating numerical modeling of chemical interactions between EGS reservoir rocks and supercritical CO2and CO2-rich aqueous fluids.

431

Subsurface Geology of the Fenton Hill Hot Dry Rock Geothermal Energy Site  

SciTech Connect (OSTI)

The Precambrian rock penetrated by wells EE-2A and -3A belongs to one or more granitic to granodioritic plutons. The plutonic rock contains two major xenolith zones of amphibolite, locally surrounded by fine-grained mafic rock of hybrid igneous origin. The granodiorite is cut by numerous leucogranite dikes that diminish in abundance with depth. The most prominent structural feature is the main breccia zone, in which the rock is highly fractured and moderately altered. This zone is at least 75 m thick and is of uncertain but near-horizontal orientation. Fracture abundance decreases with increasing depth below the main breccia zone, and fractures tend to be associated with leucogranite dikes. This association suggests that at least some of the fractures making up the geothermal reservoir are of Precambrian age or have long-range orientations controlled by the presence of Precambrian-age granitic dikes.

Levey, Schon S.

2010-12-01T23:59:59.000Z

432

A pore-scale model of two-phase flow in water-wet rock  

E-Print Network [OSTI]

705–708. DMITRIY SILIN AND TAD PATZEK 4. F. G. Avkhadiev andWET ROCK DMITRIY SILIN AND TAD PATZEK Lawrence Berkeleypermeability. DMITRIY SILIN AND TAD PATZEK a generic network

Silin, Dmitriy

2009-01-01T23:59:59.000Z

433

Direct Prediction of the Absolute Permeability of Unconsolidated and Consolidated Reservoir Rock  

E-Print Network [OSTI]

SPE 90084 Direct Prediction of the Absolute Permeability of Unconsolidated and Consolidated unconsolidated rocks whose micro-tomographic images cannot be obtained. The lattice-Boltzmann method is used

Patzek, Tadeusz W.

434

Documenting Visual Quality Controls on the Evaluation of Petroleum Reservoir-rocks through  

E-Print Network [OSTI]

) processes control the distribution of porosity and permeability within petroleum reservoir rocks and prediction of the quality (porosity, permeability) of petroleum reservoirs during their exploration and production. The description and documentation of key petrographic features is an important tool

Oliveira, Manuel M.

435

Synchrotron X-ray Studies of Super-critical Carbon Dioxide / Reservoir Rock Interfaces  

Broader source: Energy.gov [DOE]

Project obectives: Utilize synchrotron X-ray measurements, to monitor all aspects of atomic to nanoscale structural changes resulting from chemical interactions of scCO2-H2O binary fluids with rocks under environments directly relevant to EGS.

436

E-Print Network 3.0 - aggregates rock and stone Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

12;15 Figure A. 10: Picture BB07C1B... Beam Mark: BB07 Cut Location and View: Concrete Type: Self consolidating Aggregate: River Rock Cut ID... : Self consolidating...

437

Influence of Rock Types on Seismic Monitoring of CO2 Sequestration in Carbonate Reservoirs  

E-Print Network [OSTI]

) techniques such as high pressure CO2 injection may normally be required to recover oil in place in carbonate reservoirs. This study addresses how different rock types can influence the seismic monitoring of CO2 sequestration in carbonates. This research...

Mammadova, Elnara

2012-10-19T23:59:59.000Z

438

ForPeerReview Interpretation of hydraulic rock types with resistivity logs in  

E-Print Network [OSTI]

Subject Areas: Borehole and log interpretation, Integrated workflows and best practices (with broad hydraulic rock types. Core data and well logs acquired from a deep-drilling exploration well penetrating

Torres-Verdín, Carlos

439

Numerical and analytical modeling of heat transfer between fluid and fractured rocks  

E-Print Network [OSTI]

Modeling of heat transfer between fluid and fractured rocks is of particular importance for energy extraction analysis in EGS, and therefore represents a critical component of EGS design and performance evaluation. In ...

Li, Wei, S.M. Massachusetts Institute of Technology

2014-01-01T23:59:59.000Z

440

Uranium mineralization in fluorine-enriched volcanic rocks  

SciTech Connect (OSTI)

Several uranium and other lithophile element deposits are located within or adjacent to small middle to late Cenozoic, fluorine-rich rhyolitic dome complexes. Examples studied include Spor Mountain, Utah (Be-U-F), the Honeycomb Hills, Utah (Be-U), the Wah Wah Mountains, Utah (U-F), and the Black Range-Sierra Cuchillo, New Mexico (Sn-Be-W-F). The formation of these and similar deposits begins with the emplacement of a rhyolitic magma, enriched in lithophile metals and complexing fluorine, that rises to a shallow crustal level, where its roof zone may become further enriched in volatiles and the ore elements. During initial explosive volcanic activity, aprons of lithicrich tuffs are erupted around the vents. These early pyroclastic deposits commonly host the mineralization, due to their initial enrichment in the lithophile elements, their permeability, and the reactivity of their foreign lithic inclusions (particularly carbonate rocks). The pyroclastics are capped and preserved by thick topaz rhyolite domes and flows that can serve as a source of heat and of additional quantities of ore elements. Devitrification, vapor-phase crystallization, or fumarolic alteration may free the ore elements from the glassy matrix and place them in a form readily leached by percolating meteoric waters. Heat from the rhyolitic sheets drives such waters through the system, generally into and up the vents and out through the early tuffs. Secondary alteration zones (K-feldspar, sericite, silica, clays, fluorite, carbonate, and zeolites) and economic mineral concentrations may form in response to this low temperature (less than 200 C) circulation. After cooling, meteoric water continues to migrate through the system, modifying the distribution and concentration of the ore elements (especially uranium).

Burt, D.M.; Sheridan, M.F.; Bikun, J.; Christiansen, E.; Correa, B.; Murphy, B.; Self, S.

1980-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "rock lithology geochemistry" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

The development and utilization of a high-speed laboratory rock drilling apparatus  

E-Print Network [OSTI]

THE DEVELOPMENT AND UTILIZATION OF A HIGH-SPEED LABORATORY ROCK DRILLING APPARATUS A Thesis by JEFFREY DALE DAY Submitted to the Graduate College of Texas AGM University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE May 1988 Major Subject: Petroleum Engineering THE DEVELOPMENT AND UTILIZATION OF A HIGH-SPEED LABORATORY ROCK DRILLING APPARATUS A Thesis by JEFFREY DALE DAY Approved as to style and content by: Hans C. Juvkam-Wold (Chair of Committee...

Day, Jeffrey Dale

1988-01-01T23:59:59.000Z

442

Depositional and diagenetic history of some Jurassic carbonates, Indian Rock-Gilmer Field, Upshur County, Texas  

E-Print Network [OSTI]

that the origin of the paleostructure which pro- duced the shallow marine environments during Cotton Valley/Haynesvi lie deposition was a Paleozoic high. The Indian Rock-Gilmer Field was a shallow area in the Jurassic Cotton Valley/Haynesville sea situated...~ ~ ~ 0 '''j DEPOSITIONAL AND DIAGENETIC HISTORY OF SOME JURASSIC CARBONATES, INDIAN ROCK-GILMER FIELD, UPSHUR COUNTY, TEXAS A Thesis by STEVEN ANTHONY FALL Submitted to the Graduate College of Texas ASM University in partial fulfillment...

Fall, Steven Anthony

1974-01-01T23:59:59.000Z

443

Hydrogeologic and topographic factors influencing well yields in fractured crystalline rocks - Seoul, Republic of Korea  

E-Print Network [OSTI]

, it is necessary to evaluate the factors affecting specific capacity. Siddiqui and Parizek (1971) state that the specific capacity of' a well may be affected by the well radiils, srdilrated thickness of rock penetrated by the well and several other factors.... (Siegel, 1956). In the present study, it was applied to evaluate the significance of differences in the effects of topographic setting, rock type, and distance from the Han River on the productivity of wells (Table 2). The statistic, V, used...

Kim, Sang-Il

1990-01-01T23:59:59.000Z

444

Relationship between meteorological variables and total suspended and heavy metal particulates in Little Rock, Arkansas  

E-Print Network [OSTI]

RELATIONSHIP BETWEEN METEOROLOGICAL VARIABLES AND TOTAL SUSPENDED AND HEAVY NFXAL PARTICULATES IN LITTLE ROCK, ARKANSAS A Thesis MARY GWENDOLl'N AVERY Submitted to the Graduate College of Texas ALM University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE May 1985 Major Subject: Meteorology RELATIONSHIP BETWEEN METEOROLOGICAL VARIABLES AND TOTAL SUSPENDED AND HEAVY METAL PARTICULATES IN LITTLE ROCK, ARKANSAS A Thesis MARY GWENDOLYN AVERY Approved...

Avery, Mary Gwendolyn

1985-01-01T23:59:59.000Z

445

Proceedings of the International Symposium on Dynamics of Fluids in Fractured Rocks: Concepts and Recent Advances  

SciTech Connect (OSTI)

This publication contains extended abstracts of papers presented at the International Symposium ''Dynamics of Fluids in Fractured Rocks: Concepts and Recent Advances'' held at Ernest Orlando Lawrence Berkeley National Laboratory on February 10-12, 1999. This Symposium is organized in Honor of the 80th Birthday of Paul A. Witherspoon, who initiated some of the early investigations on flow and transport in fractured rocks at the University of California, Berkeley, and at Lawrence Berkeley National Laboratory. He is a key figure in the development of basic concepts, modeling, and field measurements of fluid flow and contaminant transport in fractured rock systems. The technical problems of assessing fluid flow, radionuclide transport, site characterization, modeling, and performance assessment in fractured rocks remain the most challenging aspects of subsurface flow and transport investigations. An understanding of these important aspects of hydrogeology is needed to assess disposal of nu clear wastes, development of geothermal resources, production of oil and gas resources, and remediation of contaminated sites. These Proceedings of more than 100 papers from 12 countries discuss recent scientific and practical developments and the status of our understanding of fluid flow and radionuclide transport in fractured rocks. The main topics of the papers are: Theoretical studies of fluid flow in fractured rocks; Multi-phase flow and reactive chemical transport in fractured rocks; Fracture/matrix interactions; Hydrogeological and transport testing; Fracture flow models; Vadose zone studies; Isotopic studies of flow in fractured systems; Fractures in geothermal systems; Remediation and colloid transport in fractured systems; and Nuclear waste disposal in fractured rocks.

Faybishenko, B. (ed.)

1999-02-01T23:59:59.000Z

446

On grouting using a suspension of ultrafine clay on artificially cracked rock samples  

SciTech Connect (OSTI)

Recently there has been increasing social interest in the effective disposal of low-level radioactive wastes. The use of underground rock caverns is considered as a possible repository space. This paper presents a new grouting method which uses a suspension of liquefied ultrafine clay in fractured rock masses. In order to demonstrate the effect to block open cracks, two experiments were carried out on large-sized granite samples with open cracks. The experiments proved the method to be highly effective.

Ito, Y.; Sakaguchi, T.; Nishiyama, K. [Kumagai Gumi Co., Ltd., Tokyo (Japan). Nuclear and Energy Dept.; Fujiwara, A. [Radioactive Waste Management Center, Tokyo (Japan). Second Research Div.

1993-12-31T23:59:59.000Z

447

Uranium occurrence in igneous rocks of the central Davis Mountains, west Texas  

E-Print Network [OSTI]

in granite after control- led leaching, and the same phenomenon was observed as a result of in situ weathering and initial erosion of granitic rocks by Tieh and oth- ers (1980) . There is evidence that uranium loss can occur in certain acces- sory... URANIUM OCCURRENCE IN IGNEOUS ROCKS OF THE' CENTRAL DAVIS MOUNTAINS, WEST TEXAS A Thesis by WENDY ELIZABETH SCHAFTENAAR Submitted to the Graduate college of Texas ASM University in partial fulfillment of the requirement for the degree...

Schaftenaar, Wendy Elizabeth

1982-01-01T23:59:59.000Z

448

E-Print Network 3.0 - ages constrain gabbroic Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

The carbon geochemistry of serpentinized peridotites and gabbroic rocks recovered... fracture-controlled seawater circulation deep into the gabbroic core of the massif. Thus,...

449

A study of the source materials, depositional environments, mechanisms of generation and migration of oils in the Anadarko and Cherokee Basins, Oklahoma. Quarterly technical progress report, September 15, 1989--September 14, 1990  

SciTech Connect (OSTI)

The geochemical characterization of petroleum and source rocks from the Anadarko Basin, Oklahoma, has continued. Major emphasis has seen on geochemistry of the Woodford shale.

Philp, R.P.

1996-01-01T23:59:59.000Z

450

USING RECENT ADVANCES IN 2D SEISMIC TECHNOLOGY AND SURFACE GEOCHEMISTRY TO ECONOMICALLY REDEVELOP A SHALLOW SHELF CARBONATE RESERVOIR: VERNON FIELD, ISABELLA COUNTY, MI  

SciTech Connect (OSTI)

Presented in this quarterly report is the Case History and Well Summary for the Vernon Field demonstration project in Isabella County, Michigan. This new case history and well summary format organizes and presents the technical and historical details of the Vernon Field demonstration, as well as the field demonstration results and the applicability of these results to other demonstration projects. This format could be duplicated for other demonstration projects and will be used on all subsequent field demonstrations as they near completion. Planning for the annual project meeting in Tampa, Florida has begun. This meeting will be held March 7-9, 2003 at the same site as the last three meetings. The goals of this project were to: (1) test the use of multi-lateral wells to recover bypassed hydrocarbons and (2) to access the potential of using surface geochemistry to reduce drilling risk. Two new demonstration wells, the State-Smock and the Bowers 4-25, were drilled to test the Dundee Formation at Vernon Field for bypassed oil. Neither well was commercial, although both produced hydrocarbon shows. An extensive geochemical survey in the vicinity of Vernon Field, covering much of Isabella County, has produced a base map for interpretation of anomalies in Michigan. Several potential new anomalies were discovered that could be further investigated.

James R. Wood; W. Quinlan

2003-01-01T23:59:59.000Z

451

USING RECENT ADVANCES IN 2D SEISMIC TECHNOLOGY AND SURFACE GEOCHEMISTRY TO ECONOMICALLY REDEVELOP A SHALLOW SHELF CARBONATE RESERVOIR: VERNON FIELD, ISABELLA COUNTY, MI.  

SciTech Connect (OSTI)

The fault study continues to find more faults and develop new techniques to visualize them. Data from the Dundee Formation has been used to document 11 major faults in the Michigan Basin which have now been verified using data from other horizons. These faults control the locations of many of the large anticlinal structures in the Michigan Basin and likely controlled fluid movements as well. The surface geochemistry program is also moving along well with emphasis on measuring samples collected last sampling season. The new GC laboratory is now functional and has been fully staffed as of December. The annual project review was held March 7-9 in Tampa, Florida. Contracts are being prepared for drilling the Bower's prospects in Isabella County, Michigan, this spring or summer. A request was made to extend the scope of the project to include the Willison Basin. A demonstration well has been suggested in Burke County, N. Dakota, following a review of 2D seismic and surface geochem. A 3D seismic survey is scheduled for the prospect.

James R. Wood; T.J. Bornhorst; William B. Harrison; W. Quinlan

2002-04-01T23:59:59.000Z

452

USING RECENT ADVANCES IN 2D SEISMIC TECHNOLOGY AND SURFACE GEOCHEMISTRY TO ECONOMICALLY REDEVELOP A SHALLOW SHELF CARBONATE RESERVOIR: VERNON FIELD, ISABELLA COUNTY, MI  

SciTech Connect (OSTI)

The principal objective of the study was to test a new analytical technique, Solid-Phase Microextraction (SPME), for detecting trace amounts of light hydrocarbons in pore gases as a means of reducing risk in hydrocarbon exploration and production. This involved measuring the effectiveness of SPME to extract hydrocarbons under controlled conditions in the laboratory. As part of the study, a field demonstration was undertaken to assess the validity and usefulness of the laboratory results. Presented in this quarterly report is the condensed version of the Case History and Well Summary for the Bear Lake area in Manistee County, Michigan. The full version will be in the annual report. The condensed case history presents the important technical details regarding the geochemistry and horizontal lateral for Bear Lake, as well as the field demonstration results and the applicability of these results to other demonstration projects. This format could be duplicated for other demonstration projects and will be used on all subsequent field demonstrations as they near completion.

James R. Wood; W. Quinlan

2003-04-01T23:59:59.000Z

453

Porosity and surface area evolution during weathering of two igneous rocks  

SciTech Connect (OSTI)

During weathering, rocks release nutrients and storewater vital for growth ofmicrobial and plant life. Thus, the growth of porosity as weathering advances into bedrock is a life-sustaining process for terrestrial ecosystems. Here, we use small-angle and ultra small-angle neutron scattering to show how porosity develops during initial weathering under tropical conditions of two igneous rock compositions, basaltic andesite and quartz diorite. The quartz diorite weathers spheroidally while the basaltic andesite does not. The weathering advance rates of the two systems also differ, perhaps due to this difference in mechanism, from 0.24 to 100 mm kyr1, respectively. The scattering data document how surfaces inside the feldspar-dominated rocks change as weathering advances into the protolith. In the unaltered rocks, neutrons scatter fromtwo types of featureswhose dimensions vary from6 nmto 40 lm: pores and bumps on pore grain surfaces. These features result in scattering data for both unaltered rocks that document multi-fractal behavior: scattering is best described by amass fractal dimension (Dm) and a surface fractal dimension (Ds) for features of length scales greater than and less than 1 lm, respectively. In the basaltic andesite, Dm is approximately 2.9 and Ds is approximately 2.7. The mechanism of solute transport during weathering of this rock is diffusion. Porosity and surface area increase from 1.5%to 8.5%and 3 to 23 m2 g1 respectively in a relatively consistent trend across themm-thick plagioclase reaction front. Across this front, both fractal dimensions decrease, consistentwith development of amoremonodisperse pore networkwith smoother pore surfaces. Both changes are consistent largely with increasing connectivity of pores without significant surface roughening, as expected for transport-limited weathering. In contrast, porosity and surface area increase from 1.3% to 9.5% and 1.5 to 13 m2 g1 respectively across a many cm-thick reaction front in the spheroidally weathering quartz diorite. In that rock, Dm is approximately 2.8 andDs is approximately 2.5 prior to weathering. These two fractals transform during weathering to multiple surface fractals as micro-cracking reduces the size of diffusion-limited subzones of thematrix.Across the reaction front of plagioclase in the quartz diorite, the specific surface area and porosity change very little until the pointwhere the rock disaggregates into saprolite. The different patterns in porosity development of the two rocks are attributed to advective infiltration plus diffusion in the rock that spheroidally fractures versus diffusion-only in the rock that does not. Fracturing apparently diminishes the size of the diffusion-limited parts of the spheroidally weathering rock system to promote infiltration of meteoric fluids, thereforeexplaining the faster weathering advance rate into that rock.

Navarre-Sitchler, Alexis [Colorado School of Mines, Golden; Cole, David [Ohio State University; Rother, Gernot [ORNL; Jin, Lixin [University of Texas, El Paso; Buss, Heather [University of Bristol, UK; Brantley, S. L. [Pennsylvania State University, University Park, PA

2013-01-01T23:59:59.000Z

454

Mechanical defradation of Emplacement Drifts at Yucca Mountain- A Modeling Case Study. Part I: Nonlithophysal Rock  

SciTech Connect (OSTI)

This paper outlines rock mechanics investigations associated with mechanical degradation of planned emplacement drifts at Yucca Mountain, which is the designated site for the proposed U.S. high-level nuclear waste repository. The factors leading to drift degradation include stresses from the overburden, stresses induced by the heat released from the emplaced waste, stresses due to seismically related ground motions, and time-dependent strength degradation. The welded tuff emplacement horizon consists of two groups of rock with distinct engineering properties: nonlithophysal units and lithophysal units, based on the relative proportion of lithophysal cavities. The term 'lithophysal' refers to hollow, bubble like cavities in volcanic rock that are surrounded by a porous rim formed by fine-grained alkali feldspar, quartz, and other minerals. Lithophysae are typically a few centimeters to a few decimeters in diameter. Part I of the paper concentrates on the generally hard, strong, and fractured nonlithophysal rock. The degradation behavior of the tunnels in the nonlithophysal rock is controlled by the occurrence of keyblocks. A statistically equivalent fracture model was generated based on extensive underground fracture mapping data from the Exploratory Studies Facility at Yucca Mountain. Three-dimensional distinct block analyses, generated with the fracture patterns randomly selected from the fracture model, were developed with the consideration of in situ, thermal, and seismic loads. In this study, field data, laboratory data, and numerical analyses are well integrated to provide a solution for the unique problem of modeling drift degradation.

M. Lin; D. Kicker; B. Damjanac; M. Board; M. Karakouzian

2006-07-05T23:59:59.000Z

455

Compressed air energy storage monitoring to support refrigerated mined rock cavern technology.  

SciTech Connect (OSTI)

This document is the final report for the Compressed Air Energy Storage Monitoring to Support Refrigerated-Mined Rock Cavern Technology (CAES Monitoring to Support RMRCT) (DE-FC26-01NT40868) project to have been conducted by CAES Development Co., along with Sandia National Laboratories. This document provides a final report covering tasks 1.0 and subtasks 2.1, 2.2, and 2.5 of task 2.0 of the Statement of Project Objectives and constitutes the final project deliverable. The proposed work was to have provided physical measurements and analyses of large-scale rock mass response to pressure cycling. The goal was to develop proof-of-concept data for a previously developed and DOE sponsored technology (RMRCT or Refrigerated-Mined Rock Cavern Technology). In the RMRCT concept, a room and pillar mine developed in rock serves as a pressure vessel. That vessel will need to contain pressure of about 1370 psi (and cycle down to 300 psi). The measurements gathered in this study would have provided a means to determine directly rock mass response during cyclic loading on the same scale, under similar pressure conditions. The CAES project has been delayed due to national economic unrest in the energy sector.

Lee, Moo Yul; Bauer, Stephen J.

2004-06-01T23:59:59.000Z

456

Modeling of Damage, Permeability Changes and Pressure Responses during Excavation of the TSX Tunnel in Granitic Rock at URL, Canada  

E-Print Network [OSTI]

in Granitic Rock at URL, Canada Jonny Rutqvist 1* , LennartSafety Commission, Ottawa, Canada * Corresponding author.laboratory (URL) in Canada. Four different numerical models

Rutqvist, Jonny

2009-01-01T23:59:59.000Z

457

Uranium and its relationship to host rock mineralogy in an unoxidized roll front in the Jackson group, South Texas  

E-Print Network [OSTI]

environment produced in the over- lying rocks by the sulfate caprock of the dome. ~at ati r h Stratigraphy was a major control of uranium mineralization in south Texas. The area has a combination of uranium rich source rocks, permeable host rocks... m1d-Tertiary volcanic activ1ty in northern Mexico. This mater1al is generally thought to nave been the source of uranium for the ore deposits in the area . Source Rocks. Tuff is a good source of uranium because 1t has a h1gh original uranium...

Prasse, Eric Martin

1978-01-01T23:59:59.000Z

458

Numerical studies of fluid-rock interactions in Enhanced Geothermal Systems (EGS) with CO2 as working fluid  

E-Print Network [OSTI]

2006), “The Future of Geothermal Energy Impact of Enhanced2000), “A Hot Dry Rock Geothermal Energy Concept UtilizingEnergy has broadly defined Enhanced (or Engineered) Geothermal

Xu, Tianfu; Pruess, Karsten; Apps, John

2008-01-01T23:59:59.000Z

459

Mobility promotes and jeopardizes biodiversity in rock-paper-scissors games  

E-Print Network [OSTI]

Biodiversity is essential to the viability of ecological systems. Species diversity in ecosystems is promoted by cyclic, non-hierarchical interactions among competing populations. Such non-transitive relations lead to an evolution with central features represented by the `rock-paper-scissors' game, where rock crushes scissors, scissors cut paper, and paper wraps rock. In combination with spatial dispersal of static populations, this type of competition results in the stable coexistence of all species and the long-term maintenance of biodiversity. However, population mobility is a central feature of real ecosystems: animals migrate, bacteria run and tumble. Here, we observe a critical influence of mobility on species diversity. When mobility exceeds a certain value, biodiversity is jeopardized and lost. In contrast, below this critical threshold all subpopulations coexist and an entanglement of travelling spiral waves forms in the course of temporal evolution. We establish that this phenomenon is robust, it do...

Reichenbach, Tobias; Frey, Erwin

2008-01-01T23:59:59.000Z

460

Petroleum potential of lower and middle Paleozoic rocks in Nebraska portion of Mid-Continent  

SciTech Connect (OSTI)

Central North America during the Paleozoic was characterized by northern (Williston) and southern (Anadarko) depositional regimes separated by a stable Transcontinental arch. Nebraska lies on the southern flank of this arch and contains the northern zero edges of the lower and middle Paleozoic rocks of the southern regime. Most of these rocks are secondary dolomites with zones of excellent intercrystalline porosity. The Reagan-LaMotte Sandstones and the overlying Arbuckle dolomites are overlapped by Middle Ordovician rocks toward the Transcontinental arch. Rocks equivalent to the Simpson consist of a basal sand (St. Peter) and overlying interbedded gray-green shales and dolomitic limestones. An uppermost shale facies is present in the Upper Ordovician (Viola-Maquoketa) eastward and southward across Nebraska. The dolomite facies extends northward into the Williston basin. The Silurian dolomites, originally more widely deposited, are overlapped by Devonian dolomites in southeastern Nebraska. Upper Devonian rocks exhibit a regional facies change from carbonate to green-gray shale to black shale southeastward across the Mid-Continent. Mississippian carbonates overlap the Devonian westward and northward across the Transcontinental arch. Pennsylvanian uplift and erosion were widespread, producing numerous stratigraphic traps. Sands related to the basal Pennsylvanian unconformity produce along the Cambridge arch. Arbuckle, Simpson, Viola, and Hunton production is present in the Forest City basin and along the Central Kansas uplift. Although source rocks are scarce and the maturation is marginal, current theories of long-distance oil migration encourage exploration in the extensive lower and middle Paleozoic reservoirs in this portion of the Mid-Continent.

Carlson, M.P. (Univ. of Nebraska, Lincoln (USA))

1989-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "rock lithology geochemistry" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Ordovician petroleum source rocks and aspects of hydrocarbon generation in Canadian portion of Williston basin  

SciTech Connect (OSTI)

Accumulation of rich petroleum source rocks - starved bituminous mudrocks in both the Winnipeg Formation (Middle Ordovician) and Bighorn Group (Upper Ordovician) - is controlled by cyclical deepening events with a frequency of approximately 2 m.y. Tectonics control both this frequency and the location of starved subbasins of source rock accumulation. Deepening cycles initiated starvation of offshore portions of the inner detrital and medial carbonate facies belts. Persistence of starved offshore settings was aided by marginal onlap and strandline migration in the inner detrital facies belt, and by low carbonate productivity in the medial carbonate facies belt. Low carbonate productivity was accompanied by high rates of planktonic productivity. Periodic anoxia, as a consequence of high rates of planktonic organic productivity accompanying wind-driven equatorial upwellings, is the preferred mechanism for suppressing carbonate productivity within the epeiric sea. The planktonic, although problematic, form Gloecapsamorpha prisca Zalesskey 1917 is the main contributing organism to source rock alginites. A long-ranging alga (Cambrian to Silurian), it forms kukersites in Middle and Upper Ordovician rocks of the Williston basin as a consequence of environmental controls - starvation and periodic anoxia. Source rocks composed of this organic matter type generate oils of distinctive composition at relatively high levels of thermal maturity (transformation ratio = 10% at 0.78% R/sub o/). In the Canadian portion of the Williston basin, such levels of thermal maturity occur at present depths greater than 2950 m within a region of geothermal gradient anomalies associated with the Nesson anticline. Approximately 193 million bbl (30.7 x 10/sup 6/ m/sup 3/) of oil has been expelled into secondary migration pathways from thermally mature source rocks in the Canadian portion of the basin.

Osadetz, K.G.; Snowdon, L.R.

1988-07-01T23:59:59.000Z

462

Petroleum source rock richness, type and maturity for four rock units on the Alaskan North Slope: are they sources for the two oil types  

SciTech Connect (OSTI)

A comprehensive petroleum geochemical study assessed the petroleum resources on the Alaskan North Slope. The collection and interpretation of geochemical data not only from exploratory wells drilled in the National Petroleum Reserve in Alaska (NPRA) but also from wells drilled to the east in the Prudhoe Bay area and from rocks exposed in the Arctic National Wildlife Refuge and in the Brooks Range from Cape Lisburne to the United States/Canadian border were studied. More than 17 different kinds of rock analyses, eight different oil analyses, and three gas analyses are being used to evaluate rock (outcrop samples, core, drill cuttings), oil (seeps, drill stem test, oil-stained core, producing well), and gas (drill stem test, producing well) samples on the North Slope. To date, the more than 60,000 analyses completed on these samples were placed into a computer-based file for storage and retrieval in tabular, graphical, or map form numerous graphical software programs were written to facilitate interpretation.

Magoon, L.B.; Claypool, G.E.

1983-01-01T23:59:59.000Z

463

Sizing of a hot dry rock reservoir from a hydraulic fracturing experiment  

SciTech Connect (OSTI)

Hot dry rock (HDR) reservoirs do not lend themselves to the standard methods of reservoir sizing developed in the petroleum industry such as the buildup/drawdown test. In a HDR reservoir the reservoir is created by the injection of fluid. This process of hydraulic fracturing of the reservoir rock usually involves injection of a large volume (5 million gallons) at high rates (40BPM). A methodology is presented for sizing the HDR reservoir created during the hydraulic fracturing process. The reservoir created during a recent fracturing experiment is sized using the techniques presented. This reservoir is then investigated for commercial potential by simulation of long term power production. 5 refs., 7 figs.

Zyvoloski, G.

1985-01-01T23:59:59.000Z

464

The effects of acid contact time and rock surfaces on acid fracture conductivity  

E-Print Network [OSTI]

-in), ? c is closure stress (psi), and S RE is rock embedment strength (psi). In equation 1.3, the constant 13.9 is the corrected value from the original equation which presents a typographical error 3 as 19.9. Equation 1.2 presents the Dissolved Rock... ? = (1.1) 822.0 1 )(265.0 DRECC = (1.2) psiSforSxC RERE 000,200:),ln(3.19.1310 3 2 <

Melendez Castillo, Maria Georgina

2009-06-02T23:59:59.000Z

465

Micromechanics and homogenization techniques for analyzing the continuum damage of rock salt  

SciTech Connect (OSTI)

This paper presents a model for evaluating microcrack development and dilatant behavior of crystalline rocks. The model is developed within the concepts of continuum mechanics, with special emphasis on the development of internal boundaries in the continuum by utilizing fracture mechanics based cohesive zone models. The model is capable of describing the evolution from initial debonding through complete separation and subsequent void growth of an interface. An example problem of a rock salt specimen subjected to a high deviatoric load and low confinement is presented that predicts preferential opening of fractures oriented parallel with the maximum compressive stress axis.

DeVries, K.L. [RE/SPEC Inc., Rapid City, SD (United States); Allen, D.H. [Texas A and M Univ., College Station, TX (United States). Dept. of Aerospace Engineering; Hurtado, L.D. [Sandia National Labs., Albuquerque, NM (United States)

1998-03-01T23:59:59.000Z

466

Variation in physical rock properties determined from sonic logs at a South Texas lignite mine  

E-Print Network [OSTI]

or underburden units which were identified as potential problem units. S1gn1ficance of Study In the planning and design of a Gulf Coast lignite mi ne, a need exists to deter nine the variability of phys1cal rock properties within strati graphic units...VARIATION IN PHVSICAL ROCK PROPERTIES DETERMINED FROM SONIC LOGS AT A SOUTH TEXAS LIGNITE MINE A Thesis by KERRV OON CATO Submitted to the Graduate College of Texas A&M University in Partial fulfillment of the requirements for the degree...

Cato, Kerry Don

1985-01-01T23:59:59.000Z

467

USING RECENT ADVANCES IN 2D SEISMIC TECHNOLOGY AND SURFACE GEOCHEMISTRY TO ECONOMICALLY REDEVELOP A SHALLOW SHELF CARBONATE RESERVOIR: VERNON FIELD, ISABELLA COUNTRY, MI  

SciTech Connect (OSTI)

The principal objective of this demonstration project is to test surface geochemical techniques for detecting trace amounts of light hydrocarbons in pore gases as a means of reducing risk in hydrocarbon exploration and production. A major part of the remaining project will focus on using surface geochemistry to delineate prospects. A Niagaran reef field geochemical survey, the Bagley Prospect area in Otsego County, Michigan is scheduled to take place this summer. Previous wells drilled in Bagley Prospect area in the early 1970's and in place in late 2002 and early 2003 resulted in discoveries and numerous hydrocarbon shows in the Brown Niagaran reservoir interval. The Bagley region is still considered an area of interest by the industry and appears ripe for a geochemical survey. Our industry partner is interested in a possible test in the Bagley prospect because subsurface geophysical and geological interpretation indicates the presence of structures. Anomalous production and pressure data further suggest the region is not yet well understood and should not be considered mature. The most recent well, the Bagley 1-22A sidetrack, was unsuccessful at locating a new reef culmination to the south of the original vertical well and did not encounter hydrocarbon shows. The sidetrack and well were plugged and abandoned. The proposed geochemical survey will concentrate on areas away from the Bagley 1-22A to the north and west but will include the entire prospect so that the existing data can be used in interpretations. Bagley appears to offer a unique combination of potential and data for a geochemical study that focuses on looking for new oil in an area that has exhausted traditional geologic and geophysical methods. The Bear Lake pinnacle reef trend in Manistee County, Michigan, is also scheduled for further geochemical work this summer. Industry interest, mostly by small companies, is picking up in this area and it is also ripe for targeted geochemical surveys for the same reasons cited above.

James R. Wood; A. Wylie; W. Quinlan

2004-04-01T23:59:59.000Z

468

Remedial Action Plan and Site Design for stabilization of the inactive Uranium Mill Tailings sites at Slick Rock, Colorado: Appendix C to Attachment 3, Calculations. Final  

SciTech Connect (OSTI)

This volume contains calculations for: Slick Rock processing sites background ground water quality; Slick Rock processing sites lysimeter water quality; Slick Rock processing sites on-site and downgradient ground water quality; Slick Rock disposal site background water quality; Burro Canyon disposal site, Slick Rock, Colorado, average hydraulic gradients and average liner ground water velocities in the upper, middle, and lower sandstone units of the Burro Canyon formation; Slick Rock--Burro Canyon disposal site, Burro Canyon pumping and slug tests--analyses; water balance and surface contours--Burro Canyon disposal cell; and analytical calculation of drawdown in a hypothetical well completed in the upper sandstone unit of the Burro Canyon formation.

NONE

1995-09-01T23:59:59.000Z

469

USING RECENT ADVANCES IN 2D SEISMIC TECHNOLOGY AND SURFACE GEOCHEMISTRY TO ECONOMICALLY REDEVELOP A SHALLOW SHELF CARBONATE RESERVOIR: VERNON FIELD, ISABELLA COUNTY, MI.  

SciTech Connect (OSTI)

The geochemical sampling team collected additional 148 samples at Vernon Field along 5 new traverses. Most of the locations were sampled for three types of analyses: microbial, iodine and enzyme leach; no results from the second batch of samples were available in time for this report. In addition to the sampling, a study was begun on the feasibility of collecting and analyzing hydrocarbon gases (C1-C8) directly. Although several companies offer these services, the cost ($200-300/sample w/o sampling fee) is high, on par with the cost of a 3D seismic survey, and may not include the raw data. However direct sampling of reservoir gases collecting in the soil appear to offer the best approach and should be included in this study. It would probably work well at Vernon Field. It may be possible to lower costs considerably; initial estimates of $20/sample for GCMS (Gas Chromatography--mass spectrometry) analysis are attractive and might induce to Michigan producers to include soil surveys in their routine field work-ups. A complete set of digital data was assembled for Vernon Field and nearby locations. The set consists of well locations, formation top picks, lithologies and scanned images of driller's reports and scout tickets. Well logs are still being located. The annual meeting for the Class Revisit work group is tentatively scheduled for the week of March 1-7 in Tampa, Fl. By that time all of the geochemical data will be available and final decisions regarding drilling can be made.

James R. Wood; T.J. Bornhorst; S.D. Chittichk; William B. Harrison; W. Quinlan

2001-01-01T23:59:59.000Z

470

Revisiting Alexander von Humboldt's Initiation of Rock Coating Research Author(s): Ronald I. Dorn, David H. Krinsley, Jeffrey Ditto  

E-Print Network [OSTI]

Revisiting Alexander von Humboldt's Initiation of Rock Coating Research Author(s): Ronald I. Dorn, David H. Krinsley, Jeffrey Ditto Reviewed work(s): Source: The Journal of Geology, Vol. 120, No. 1 Revisiting Alexander von Humboldt's Initiation of Rock Coating Research Ronald I. Dorn,1, * David H. Krinsley

Dorn, Ron

471

Physics of the Earth and Planetary Interiors 126 (2001) 93108 Rock-magnetic properties of TRM carrying baked and  

E-Print Network [OSTI]

Physics of the Earth and Planetary Interiors 126 (2001) 93­108 Rock-magnetic properties of TRM produced large areas of thermally altered sedimentary rocks with large magnetic moments. The natural remanent magnetization (NRM) and thermoremanent magnetization (TRM) intensities and low

Utrecht, Universiteit

2001-01-01T23:59:59.000Z

472

Experimental and theoretical studies of spectral alteration in ultrasonic waves resulting from nonlinear elastic response in rock  

SciTech Connect (OSTI)

Experiments in rock show a large nonlinear elastic wave response, far greater than that of gases, liquids and most other solids. The large response is attributed to structural defects in rock including microcracks and grain boundaries. In the earth, a large nonlinear response may be responsible for significant spectral alteration at amplitudes and distances currently considered to be well within the linear elastic regime.

Johnson, P.A.; McCall, K.R.; Meegan, G.D. Jr. [Los Alamos National Lab., NM (United States)

1993-11-01T23:59:59.000Z

473

SEISMIC MONITORING APPLIED TO MINES SAFETY AND OPTIMAL DESIGN OF MINE LAYOUTS IN HARD ROCK MASS SITATIONS  

E-Print Network [OSTI]

SEISMIC MONITORING APPLIED TO MINES SAFETY AND OPTIMAL DESIGN OF MINE LAYOUTS IN HARD ROCK MASSRockMechanics, School of Mines ofNancy, France. ABSTRACT : The paper intends to show how seismic data can be usefülly rock, tabular situations are usually associated with induced, seismic activity, i.e. the occurrence

Boyer, Edmond

474

Specific Methods for the Evaluation of Hydraulic Properties in Fractured Hard-rock J.C. Marchala,*  

E-Print Network [OSTI]

1 Specific Methods for the Evaluation of Hydraulic Properties in Fractured Hard-rock Aquifers J, marechal@ngri.res.in Abstract: Blocs underlined by fractures networks mainly compose hard-rock aquifers. The complexity of flows through fractures makes inadequate the use of classical techniques for the interpretation

Paris-Sud XI, Université de

475

2. INVESTIGATION OF CRUDE OIL/BRINE/ROCK INTERACTION 2.1 STUDY OF WATERFLOODING PROCESS IN NATURALLY FRACTURED  

E-Print Network [OSTI]

, followed by waterflooding, were performed at reservoir conditions to investigate rock wettability. A two Berea and Spraberry cores at reservoir conditions to illustrate the actual process of waterflooding- 31 - 2. INVESTIGATION OF CRUDE OIL/BRINE/ROCK INTERACTION 2.1 STUDY OF WATERFLOODING PROCESS

Schechter, David S.

476

Seasonal melting and the formation of sedimentary rocks on Mars, with predictions for the Gale Crater mound  

E-Print Network [OSTI]

Street, Suite 205, Boulder, CO 80301, USA e Department of Earth and Planetary Science, University distribution of sedimentary rocks. The global distribution of snowmelt has maxima in Valles Marineris. The pattern of sedimentary rocks on Mars is most consistent with a model Mars paleoclimate that only rarely

Kite, Edwin

477

FRAMEWORK GEOLOGY OF FORT UNION COAL IN THE EASTERN ROCK SPRINGS UPLIFT,  

E-Print Network [OSTI]

Chapter GF FRAMEWORK GEOLOGY OF FORT UNION COAL IN THE EASTERN ROCK SPRINGS UPLIFT, GREATER GREEN RIVER BASIN, WYOMING By R.M. Flores,1 A.M. Ochs,2 and L.R. Bader1 in U.S. Geological Survey Professional Paper 1625-A 1 U.S. Geological Survey 2 Consultant, U.S. Geological Survey, Denver, Colorado 1999

478

EXPERIMENTAL VERIFICATION OF THE LOAD-FOLLOWING POTENTIAL OF A HOT DRY ROCK GEOTHERMAL RESERVOIR  

E-Print Network [OSTI]

EXPERIMENTAL VERIFICATION OF THE LOAD-FOLLOWING POTENTIAL OF A HOT DRY ROCK GEOTHERMAL RESERVOIR. The objective of this cyclic load-following experiment was to investigate the performance of the reservoir, this series of cyclic flow tests is referred to as the Load-Following Experiment, with the objective

479

Sorptivity of rocks and soils of the van Genuchten-Mualem type  

SciTech Connect (OSTI)

One hydrological process that will have great relevance to the performance of the proposed underground radioactive waste repository at Yucca Mountain, Nevada, is that of the absorption of water from a water-filled fracture into the adjacent unsaturated rock formation. The rate at which water is imbibed by a rock depends on the hydrological properties of the rock and on the initial saturation (or initial capillary suction) of the formation. The hydrological properties that affect imbibition are the relative permeability function and the capillary pressure function. These functions are often collectively referred to as the `characteristic functions` of the porous medium. For one-dimensional absorption, it can be shown that, regardless of the details of the characteristic functions, the total amount of water imbibed by the formation, per unit surface area, will be proportional to the square root of the elapsed time. Hence the ability of a rock or soil to imbibe water can be quantified by a parameter known as the sorptivity S, which is defined such that the cumulative volumetric liquid influx per unit area is given by Q = S{radical}t. The paper discusses the simplification of these characteristic functions of porous medium.

Zimmerman, R.W.; Bodvarsson, G.S. [Lawrence Berkeley Lab., CA (United States)

1991-06-01T23:59:59.000Z

480

Brazilian uranium mine decommissioning-chemical and radiological study of waste rock piles  

SciTech Connect (OSTI)

The Pocos de Caldas plateau is a high-natural-radioactivity area in the state of Minas Gerais, southeast Brazil. Uranium occurrence in the plateau was first observed in 1948. Mining started in 1977 with mine scouring, and the first ore pile was constructed in 1981. Waste rocks are derived from the mine material. The analysis of core samples is discussed.

Wiikmann, L. O. [Industrias Nucleares do Brasil, Pocos de Caldas (Brazil)

1996-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "rock lithology geochemistry" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

THE CONVERSION OF BIOMASS TO ETHANOL USING GEOTHERMAL ENERGY DERIVED FROM HOT DRY ROCK  

E-Print Network [OSTI]

97505 THE CONVERSION OF BIOMASS TO ETHANOL USING GEOTHERMAL ENERGY DERIVED FROM HOT DRY ROCK of biomass to fuel ethanol is considerable. In addition, combining these two renewable energy resources of wedding an HDR geothermal power source to a biomass conversion process is flexibility, both in plant

482

Oldest rocks, earliest life, heaviest impacts, and the HadeanArchaean transition  

E-Print Network [OSTI]

, of these rocks were deposited in water. There was clearly no shortage of water on the EarthÕs surface at around 3, the sta- bilisation of liquid water, and the decreasing impact rate, made for an increasingly predictable.8 Ga. Maybe planet Mars was still flowing with surface water then, or it might already have par- tially

Reiners, Peter W.

483

Interaction between CO2-rich solutions and reservoir-seal rocks. Experimentation  

E-Print Network [OSTI]

coal systems 5.Use of CO2 in enhanced coal bed methane recovery 6.Other suggested options (basalts, oilInteraction between CO2-rich solutions and reservoir-seal rocks. Experimentation María García formations (after Cook, 1999). Geological Storage Options for CO2 1.Depleted oil and gas reservoirs 2.Use

Politècnica de Catalunya, Universitat

484

EA-1987: Parker-Headgate Rock and Parker-Bouse Rebuild Project, Arizona and California  

Broader source: Energy.gov [DOE]

DOE’s Western Area Power Administration is preparing an EA that will assess the potential environmental impacts of a proposal to rebuild the existing Parker Dam-Headgate Rock and Parker Dam-Bouse 161-kilovolt transmission lines along the Colorado River in western Arizona and eastern California.

485

Production of 239 Pu from a natural Uranium disk and "hot" rock using a neutron howitzer  

E-Print Network [OSTI]

A neutron howitzer was used to produce 239Np from the targets of natural U and a hot rock. An intrinsic Germanium detector enabled the observations of the gamma rays in the decay of 239Np and a determination of its half life of 2.3 days. This shows that 239Pu had been produced in both targets

Joseph Steiner; Aaron Anderson; Michael De Marco

2008-05-23T23:59:59.000Z

486

Safety First Safety Last Safety Always Three soil types, plus rock, determine the slope or  

E-Print Network [OSTI]

Safety First Safety Last Safety Always · Three soil types, plus rock, determine the slope or safety to be at least 2 feet from the edge. Excavation Requirements Safety Tip #10 If you see a mistake and don't fix it on the reverse side of this safety tip sheet. Please refrain from reading the information verbatim

Minnesota, University of

487

Parameter estimation from flowing fluid temperature logging data in unsaturated fractured rock using multiphase inverse modeling  

SciTech Connect (OSTI)

A simple conceptual model has been recently developed for analyzing pressure and temperature data from flowing fluid temperature logging (FFTL) in unsaturated fractured rock. Using this conceptual model, we developed an analytical solution for FFTL pressure response, and a semianalytical solution for FFTL temperature response. We also proposed a method for estimating fracture permeability from FFTL temperature data. The conceptual model was based on some simplifying assumptions, particularly that a single-phase airflow model was used. In this paper, we develop a more comprehensive numerical model of multiphase flow and heat transfer associated with FFTL. Using this numerical model, we perform a number of forward simulations to determine the parameters that have the strongest influence on the pressure and temperature response from FFTL. We then use the iTOUGH2 optimization code to estimate these most sensitive parameters through inverse modeling and to quantify the uncertainties associated with these estimated parameters. We conclude that FFTL can be utilized to determine permeability, porosity, and thermal conductivity of the fracture rock. Two other parameters, which are not properties of the fractured rock, have strong influence on FFTL response. These are pressure and temperature in the borehole that were at equilibrium with the fractured rock formation at the beginning of FFTL. We illustrate how these parameters can also be estimated from FFTL data.

Mukhopadhyay, S.; Tsang, Y.; Finsterle, S.

2009-01-15T23:59:59.000Z

488

Technical Note Improved Optimization and Visualization of Drilling Directions for Rock  

E-Print Network [OSTI]

INTRODUCTION Characterization of planar discontinuities such as bedding, joints, and faults is an essential control in situ block sizes that can be important when assessing the adequacy of potential riprap or armor-stone sources, the susceptibility of bridge foundations to scour during floods, and the sizes of rock blocks

Haneberg, William C.

489

Solidification pipes: from solder pots to igneous rocks M. Stewart Siua  

E-Print Network [OSTI]

Solidification pipes: from solder pots to igneous rocks M. Stewart Siua and Dmitry Budkerb resolidification. We use a simple model to describe the shape of the pipe and compare it with experimental results in volume of thallium during solidification. Such formation is sometimes known as "pipe" in metallurgy [2

Pines, Alexander

490

Explosion in the Granite Field: Hardening and Softening Behavior in Rocks  

SciTech Connect (OSTI)

Properties of rock materials under quasistatic conditions are well characterized in laboratory experiments. Unfortunately, quasistatic data alone are not sufficient to calibrate models for use to describe inelastic wave propagation associated with conventional and nuclear explosions, or with impact. First, rock properties are size-dependent. properties measured using laboratory samples on the order of a few centimeters in size need to be modified to adequately describe wave propagation in a problem on the order of a few hundred meters in size. Second, there is lack of data about the damage (softening) behavior of rock because most laboratory tests focus on the pre-peak hardening region with very little emphasis on the post-peak softening region. This paper presents a model for granite that accounts for both the hardening and softening of geologic materials, and also provides a simple description of rubblized rock. The model is shown to reproduce results of quasistatic triaxial experiments as well as peak velocity and peak displacement attenuation from a compendium of dynamic wave propagation experiments that includes US and French nuclear tests in granite.

Lomov, I N; Antoun, T H; Glenn, L A

2001-07-12T23:59:59.000Z

491

Explosion in the Granite Field: Hardening and Softening Behavior in Rocks  

SciTech Connect (OSTI)

Properties of rock materials under quasistatic conditions are well characterized in laboratory experiments. Unfortunately, quasistatic data alone are not sufficient to calibrate models for use to describe inelastic wave propagation associated with conventional and nuclear explosions, or with impact. First, rock properties are size-dependent. properties measured using laboratory samples on the order of a few centimeters in size need to be modified to adequately describe wave propagation in a problem on the order of a few hundred meters in size. Second, there is lack of data about the damage (softening) behavior of rock because most laboratory tests focus on the pre-peak hardening region with very little emphasis on the post-peak softening region. This paper presents a model for granite that accounts for both the hardening and softening of geologic materials, and also provides a simple description of rubblized rock. The model is shown to reproduce results of quasistatic triaxial experiments as well as peak velocity and peak displacement attenuation from a compendium of dynamic wave propagation experiments that includes US and French nuclear tests in granite.

Lomov, I N; Antoun, T H; Glenn, L A

2001-06-25T23:59:59.000Z

492

ORNITHOCOPROPHILOUS PLANTS OF MOUNT DESERT ROCK, A REMOTE BIRD-NESTING ISLAND IN THE  

E-Print Network [OSTI]

ORNITHOCOPROPHILOUS PLANTS OF MOUNT DESERT ROCK, A REMOTE BIRD-NESTING ISLAND IN THE GULF OF MAINE for the maintenance of plant communities (Cruden 1966; Gillham 1970; Howe and Smallwood 1982; Mulder and Keall 2001 to botanists as they often determine which plant species are dispersed and become established in such remote

Rajakaruna, Nishanta

493

Rock County Region (March 16, 2009) Washtenaw County (February 6, 2008)  

E-Print Network [OSTI]

Region (March 26, 2008) Tri-County Region (August 12, 2008) Lenawee County (August 20, 2008) GeneseeWisconsin Rock County Region (March 16, 2009) Michigan Washtenaw County (February 6, 2008) Grayling County (August 27, 2008) Wixom (December 4, 2008) Pontiac (December 19, 2008) West Michigan Region (March

494

Hot Dry Rock Geothermal Energy Development in the USA David Duchane and Donald Brown  

E-Print Network [OSTI]

1 Hot Dry Rock Geothermal Energy Development in the USA by David Duchane and Donald Brown Los of the world's store of geothermal energy. The real potential for growth in the use of geothermal energy lies system. Water is circulated around a closed loop to extract thermal energy from an engineered geothermal

495

Development of hot dry rock geothermal resources; technical and economic issues  

SciTech Connect (OSTI)

Technical and economic issues related to the commercial feasibility of hot dry rock geothermal energy for producing electricity and heat are discussed. Topics covered include resource characteristics, reservoir thermal capacity and lifetime, drilling and surface plant costs, financial risk and anticipated rate of return. The current status of research and deveopment efforts in the US are also summarized.

Tester, J.W.

1980-01-01T23:59:59.000Z

496

Hydrochemical Impacts of Limestone Rock Mining Ghinwa M. Naja & Rosanna Rivero &  

E-Print Network [OSTI]

. 2002). Even though the environmental impacts of ore and coal mining have been adequately investigated, the impact of limestone rock mining has not been well studied. Water Air Soil Pollut DOI 10.1007/s11270-mail: mnaja@evergladesfoundation.org #12;Quarrying of limestone aggregate currently repre- sents in the USA

Demers, Nora Egan

497

AN ATLAS OF MARS SEDIMENTARY ROCKS AS SEEN BY HIRISE ROSS A. BEYER  

E-Print Network [OSTI]

AN ATLAS OF MARS SEDIMENTARY ROCKS AS SEEN BY HIRISE ROSS A. BEYER Sagan Center at the SETI. The atlas of photographs collected during the Hayden (1872) expedition to the Yellowstone region earlier epochs of Mars, we should not expect any trace of them to be visible on the Mariner IV photographs

Byrne, Shane

498

Electrical conductivity of minerals and rocks Shun-ichiro Karato1  

E-Print Network [OSTI]

1 Electrical conductivity of minerals and rocks Shun-ichiro Karato1 and Duojun Wang1,2 1 : Yale-Blackwell #12;2 SUMMARY Electrical conductivity of most minerals is sensitive to hydrogen (water) content, temperature, major element chemistry and oxygen fugacity. The influence of these parameters on electrical

499

Micro-meter Crack Response to Rock Blast Vibrations, Wind Gusts & Weather Effects  

E-Print Network [OSTI]

Micro-meter Crack Response to Rock Blast Vibrations, Wind Gusts & Weather Effects C. H. Dowding,1 effects. These measurements substantiate the conservancy of the 12.5 mm/s (0.5 in./s) blasting vibration blasting. Measurements in this case study now extend weather effects to include wind. While it has been

500

A pore-scale model of two-phase flow in water-wet rock  

SciTech Connect (OSTI)

A finite-difference discretization of Stokes equations is used to simulate flow in the pore space of natural rocks. Numerical solutions are obtained using the method of artificial compressibility. In conjunction with Maximal Inscribed Spheres method, these computations produce relative permeability curves. The results of computations are in agreement with laboratory measurements.

Silin, Dmitriy; Patzek, Tad

2009-02-01T23:59:59.000Z