Sample records for uravan mineral belt

  1. Geology of eastern Smith Lake ore trend, Grants mineral belt

    SciTech Connect (OSTI)

    Ristorcelli, S.J.

    1980-01-01T23:59:59.000Z

    The sandstones in the Brushy Basin Member of the Morrison Formation (Jurassic) are the ore-bearing horizons of the eastern Smith Lake area. The Brushy Basin Member in this district consists of three sandstones with interbedded mudstones. Only the lower two sandstones contain ore. The sandstones are fine to coarse grained, well rounded, and arkosic, representing continental stream sediments. The lower sandstone contains rollfront ore. The redox interface is laterally extensive and well defined, extending at least 7 mi (11 km) west of the Bluewater fault zone. The ore generally occurs at the redox boundary but occasionally will be up to 1500 ft (450 m) updip. Limonitic alteration, where present, is downdip from the hematitic zone and is 100-1,500 ft (30 to 450 m) wide. The middle sandstone contains both trend ore and roll-front ore. The trend ore occurs downdip from the redox front in unoxidized ground. The redox front in the middle sand is also laterally extensive but displays a wedge shape, rather than a C shape. The clay assemblages of the two types of ore are different: the trend ore occurs in sands with the pore spaces filled with kaolinite; the roll-front ore is associated with altered illite-montmorillonite as grain coatings. Hematitic alteration is asociated with the latter. A second stage of kaolinite coats the illite-montmorillonite. Two periods of mineralization are suggested, but no absolute dates are known. The trend ore is the oldest (Jurassic) and is similar to the ore found in unoxidized ground elsewhere in the Grants region. The rollfront ore could be Laramide or post-Laramide because of its association with local Laramide structures.

  2. Laterally bendable belt conveyor

    DOE Patents [OSTI]

    Peterson, William J. (Coraopolis, PA)

    1985-01-01T23:59:59.000Z

    An endless, laterally flexible and bendable belt conveyor particularly adapted for coal mining applications in facilitating the transport of the extracted coal up- or downslope and around corners in a continuous manner is disclosed. The conveying means includes a flat rubber belt reinforced along the middle portion thereof along which the major portion of the belt tension is directed so as to cause rotation of the tubular shaped belt when trammed around lateral turns thus preventing excessive belt bulging distortion between adjacent belt supports which would inhibit belt transport. Pretension induced into the fabric reinforced flat rubber belt by conventional belt take-up means supports the load conveyed when the belt conveyor is making lateral turns. The carrying and return portions of the belt are supported and formed into a tubular shape by a plurality of shapers positioned along its length. Each shaper is supported from above by a monorail and includes clusters of idler rollers which support the belt. Additional cluster rollers in each shaper permit the belt supporting roller clusters to rotate in response to the belt's operating tension imposed upon the cluster rollers by induced lateral belt friction forces. The freely rotating roller clusters thus permit the belt to twist on lateral curves without damage to itself while precluding escape of the conveyed material by effectively enclosing it in the tube-shaped, inner belt transport length.

  3. SLH Timing Belt Powertrain

    SciTech Connect (OSTI)

    Schneider, Abe

    2014-04-09T23:59:59.000Z

    The main goal of this proposal was to develop and test a novel powertrain solution for the SLH hydroEngine?, a low-cost, efficient low-head hydropower technology. Nearly two-thirds of U.S. renewable electricity is produced by hydropower (EIA 2010). According to the U.S. Department of Energy; this amount could be increased by 50% with small hydropower plants, often using already-existing dams (Hall 2004). There are more than 80,000 existing dams, and of these, less than 4% generate power (Blankinship 2009). In addition, there are over 800 irrigation districts in the U.S., many with multiple, non-power, low-head drops. These existing, non-power dams and irrigation drops could be retrofitted to produce distributed, baseload, renewable energy with appropriate technology. The problem is that most existing dams are low-head, or less than 30 feet in height (Ragon 2009). Only about 2% of the available low-head hydropower resource in the U.S. has been developed, leaving more than 70 GW of annual mean potential low-head capacity untapped (Hall 2004). Natel Energy, Inc. is developing a low-head hydropower turbine that operates efficiently at heads less than 6 meters and is cost-effective for deployment across multiple low-head structures. Because of the unique racetrack-like path taken by the prime-movers in the SLH, a flexible powertrain is required. Historically, the only viable technological solution was roller chain. Despite the having the ability to easily attach blades, roller chain is characterized by significant drawbacks, including high cost, wear, and vibration from chordal action. Advanced carbon-#12;fiber-reinforced timing belts have been recently developed which, coupled with a novel belt attachment system developed by Natel Energy, result in a large reduction in moving parts, reduced mass and cost, and elimination of chordal action for increased fatigue life. The work done in this project affirmatively addressed each of the following 3 major uncertainties concerning a timing-belt based hydroEngine ?powertrain: 1. Can a belt handle the high torques and power loads demanded by the SLH? (Yes.) 2. Can the SLH blades be mounted to belt with a connection that can withstand the loads encountered in operation? (Yes.) 3. Can the belt, with blade attachments, live through the required cyclic loading? (Yes.) The research adds to the general understanding of sustainable small hydropower systems by using innovative system testing to develop and demonstrate performance of a novel powertrain solution, enabling a new type of hydroelectric turbine to be commercially developed. The technical effectiveness of the methods investigated has been shown to be positive through an extensive design and testing process accommodating many constraints and goals, with a major emphasis on high cycle fatigue life. Economic feasibility of the innovations has been demonstrated through many iterations of design for manufacturability and cost reduction. The project is of benefit to the public because it has helped to develop a solution to a major problem -- despite the large available potential for new low-head hydropower, high capital costs and high levelized cost of electricity (LCOE) continue to be major barriers to project development. The hydroEngine? represents a significant innovation, leveraging novel fluid mechanics and mechanical configuration to allow lower-cost turbine manufacture and development of low head hydropower resources.

  4. IR Kuiper Belt Constraints

    E-Print Network [OSTI]

    Teplitz, V L; Anderson, J D; Rosenbaum, D C; Scalise, R J; Wentzler, P; Teplitz, Vigdor L.; Anderson, John D.; Rosenbaum, Doris; Scalise, Randall J.; Wentzler, Paul

    1999-01-01T23:59:59.000Z

    We compute the temperature and IR signal of particles of radius $a$ and albedo $\\alpha$ at heliocentric distance $R$, taking into account the emissivity effect, and give an interpolating formula for the result. We compare with analyses of COBE DIRBE data by others (including recent detection of the cosmic IR background) for various values of heliocentric distance, $R$, particle radius, $a$, and particle albedo, $\\alpha$. We then apply these results to a recently-developed picture of the Kuiper belt as a two-sector disk with a nearby, low-density sector (40belt IR spectra for various parameter v...

  5. Clay Minerals

    SciTech Connect (OSTI)

    Mueller, Karl T.; Sanders, Rebecca L.; Washton, Nancy M.

    2014-03-14T23:59:59.000Z

    Clay minerals are important components of the environment and are involved or implicated in processes such as the uptake of pollutants and the release of nutrients and as potential platforms for a number of chemical reactions. Owing to their small particle sizes (typically, on the order of microns or smaller) and mixing with a variety of other minerals and soil components, advanced characterization methods are needed to study their structures, dynamics, and reactivities. In this article, we describe the use of solid-state NMR methods to characterize the structures and chemistries of clay minerals. Early one-pulse magic-angle spinning (MAS) NMR studies of 27Al and 29Si have now been enhanced and extended with new studies utilizing advanced methodologies (such as Multiple Quantum MAS) as well as studies of less-sensitive nuclei. In additional work, the issue of reactivity of clay minerals has been addressed, including studies of reactive surface area in the environment. Utilizations of NMR-sensitive nuclides within the clay minerals themselves, and in molecules that react with speci?c sites on the clay mineral surfaces, have aided in understanding the reactivity of these complex aluminosilicate systems.

  6. Synchronous and Cogged Fan Belt Performance Assessment

    SciTech Connect (OSTI)

    Cutler, D.; Dean, J.; Acosta, J.

    2014-02-01T23:59:59.000Z

    The GSA Regional GPG Team commissioned the National Renewable Energy Laboratory (NREL) to perform monitoring of cogged V-belts and synchronous belts on both a constant volume and a variable air volume fan at the Byron G. Rodgers Federal Building and U.S. Courthouse in Denver, Colorado. These motor/fan combinations were tested with their original, standard V-belts (appropriately tensioned by an operation and maintenance professional) to obtain a baseline for standard operation. They were then switched to the cogged V-belts, and finally to synchronous belts. The power consumption by the motor was normalized for both fan speed and air density changes. This was necessary to ensure that the power readings were not influenced by a change in rotational fan speed or by the power required to push denser air. Finally, energy savings and operation and maintenance savings were compiled into an economic life-cycle cost analysis of the different belt options.

  7. 1. THE RADIATION BELTS The outer zone radiation belts consist of energetic elec-

    E-Print Network [OSTI]

    Elkington, Scot R.

    1. THE RADIATION BELTS The outer zone radiation belts consist of energetic elec- trons trapped in the geomagnetic field. The dynamics of the belts are dictated by the global and local electric and mag- netic electrons in the outer zone and electric and magnetic field variations occurring on ULF time scales

  8. Middle Paleozoic convergent orogenic belts in western Inner Mongolia (China)

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Middle Paleozoic convergent orogenic belts in western Inner Mongolia (China): framework, kinematics recognized in western Inner Mongolia (China), including, from south to north: North China Craton (NCC), Southern Orogenic Belt (SOB), Hunshandake Block (HB), Northern Orogenic Belt (NOB), South Mongolia

  9. Creating Artificial Radiation Belts in the Lab

    E-Print Network [OSTI]

    Mauel, Michael E.

    Current: Trapped, High- Protons (15-250 keV) · Greatly intensified during geomagnetic storms · Ti ~ 7Te Jeff #12;Outline · The Earth's radiation belts and ring current · Fast-electron interchange instability to measure the artificial radiation belt produced by the Argus explosions (1958). (Explosions continued

  10. Electric filter with movable belt electrode

    DOE Patents [OSTI]

    Bergman, W.

    1983-09-20T23:59:59.000Z

    A method and apparatus for removing airborne contaminants entrained in a gas or airstream includes an electric filter characterized by a movable endless belt electrode, a grounded electrode, and a filter medium sandwiched there between. Inclusion of the movable, endless belt electrode provides the driving force for advancing the filter medium through the filter, and reduces frictional drag on the filter medium, thereby permitting a wide choice of filter medium materials. Additionally, the belt electrode includes a plurality of pleats in order to provide maximum surface area on which to collect airborne contaminants. 4 figs.

  11. Seat Belt Use Policy Outline the policy regarding use of seat belt in University of Michigan (U-M) vehicles.

    E-Print Network [OSTI]

    Kirschner, Denise

    Seat Belt Use Policy Objective Outline the policy regarding use of seat belt in University of Michigan (U-M) vehicles. Vehicle Use Policy 1. Staff members are responsible to operate U-M vehicles are adhering to the seat belt use laws when operating a U-M vehicle. 3. State of Michigan seat belt laws

  12. A study of binary Kuiper Belt objects

    E-Print Network [OSTI]

    Kern, Susan Diane

    2006-01-01T23:59:59.000Z

    About 105 bodies larger than 100km in diameter (Jewitt 1998) reside in the Kuiper Belt, beyond the orbit of Neptune. Since 1992 observational surveys have discovered over one thousand of these objects, believed to be fossil ...

  13. MINERAL COMMODITY SUMMARIES 2002

    E-Print Network [OSTI]

    Torgersen, Christian

    MINERAL COMMODITY SUMMARIES 2002 MINERAL COMMODITY SUMMARIES 2002 U.S. Department of the Interior U for Mineral Products . . . . . . . . . . . . . . . . . . . . . . . . . 3 The Role of Nonfuel Minerals in the U.S. Economy . . . 4 2001 U.S. Net Import Reliance for Selected Nonfuel Mineral Materials

  14. MINERAL FACILITIES MAPPING PROJECT

    E-Print Network [OSTI]

    Gilbes, Fernando

    MINERAL FACILITIES MAPPING PROJECT Yadira Soto-Viruet Supervisor: David Menzie, Yolanda Fong-Sam Minerals Information Team (MIT) USGS Summer Internship 2009 U.S. Department of the Interior U.S. Geological Minerals Information Team (MIT): Annually reports on the minerals facilities of more than 180 countries

  15. MINERAL COMMODITY SUMMARIES 2014

    E-Print Network [OSTI]

    Torgersen, Christian

    MINERAL COMMODITY SUMMARIES 2014 #12;U.S. Department of the Interior U.S. Geological Survey MINERAL contained within this report. Suggested citation: U.S. Geological Survey, 2014, Mineral commodity summaries and Coincident Indexes for Mineral Products......................................................... 4 The Role

  16. MINERAL COMMODITY SUMMARIES 2012

    E-Print Network [OSTI]

    Fleskes, Joe

    MINERAL COMMODITY SUMMARIES 2012 #12;U.S. Department of the Interior U.S. Geological Survey MINERAL contained within this report. Suggested citation: U.S. Geological Survey, 2012, Mineral commodity summaries and Coincident Indexes for Mineral Products......................................................... 4 The Role

  17. MINERAL COMMODITY SUMMARIES 2003

    E-Print Network [OSTI]

    Torgersen, Christian

    MINERAL COMMODITY SUMMARIES 2003 MINERAL COMMODITY SUMMARIES 20 U.S. Department of the Interior U MINERAL COMMODITY SUMMARIES 2003 #12;U.S. DEPARTMENT OF THE INTERIOR GALE A. NORTON, Secretary For sale;CONTENTS Page General: Growth Rates of Leading and Coincident Indexes for Mineral Products

  18. Earth's Mineral Evolution

    E-Print Network [OSTI]

    Downs, Robert T.

    Earth's Mineral Evolution :: Astrobiology Magazine - earth science - evol...rth science evolution Extreme Life Mars Life Outer Planets Earth's Mineral Evolution Summary (Nov 14, 2008): New research. Display Options: Earth's Mineral Evolution Based on a CIW news release Mineral Kingdom Has Co

  19. Six Sigma Black Belts Fight For Quality

    E-Print Network [OSTI]

    Vardeman, Stephen B.

    Six Sigma Black Belts Fight For Quality Ron Scott Ross Finnestad Rodney Kalsow IE 361 mini-paper 9/22/00 #12;Six Sigma is a breakthrough management strategy that is revolutionizing the world's top corporations. So what is Six Sigma? "It is a business process that allows companies to drastically improve

  20. Impacts of Minnesota's Primary Seat Belt Law

    E-Print Network [OSTI]

    Minnesota, University of

    for Excellence in Rural Safety Humphrey School of Public Affairs #12;CERS's "Safe Six Regardless of Residence Urban/Small City Suburban Rural/Small Town Primary Seat; . . AND IN MINNESOTA #12;Predicted Impact 2009 and 2010 CERS Reports: · Primary Seat Belt Laws

  1. Population of the Scattered Kuiper Belt

    E-Print Network [OSTI]

    C. A. Trujillo; D. C. Jewitt; J. X. Luu

    1999-12-20T23:59:59.000Z

    We present the discovery of three new Scattered Kuiper Belt Objects (SKBOs) from a wide-field survey of the ecliptic. This continuing survey has to date covered 20.2 square degrees to a limiting red magnitude of 23.6. We combine the data from this new survey with an existing survey conducted at the University of Hawaii 2.2m telescope to constrain the number and mass of the SKBOs. The SKBOs are characterized by large eccentricities, perihelia near 35 AU, and semi-major axes > 50 AU. Using a maximum-likelihood model, we estimate the total number of SKBOs larger than 100 km in diameter to be N = 3.1 (+1.9/-1.3) x 10^4 (1 sigma) and the total mass of SKBOs to be about 0.05 Earth masses, demonstrating that the SKBOs are similar in number and mass to the Kuiper Belt inside 50 AU.

  2. DOE - Office of Legacy Management -- Uravan Mill Site - CO 02

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA group currentBradleyTableSelling Corp -K LeDowntownUnitedCenter - UTUravan Mill

  3. Replace V-Belts with Notched or Synchronous Belt Drives | Department of

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

    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 Home Page onYouTube YouTube Note: Since the.pdfBreakingMay 2015 < prevQuickEnergy V-Belts with Notched or Synchronous Belt

  4. Analysis of stream sediment reconnaissance data for mineral resources from the Montrose NTMS Quadrangle, Colorado

    SciTech Connect (OSTI)

    Beyth, M.; Broxton, D.; McInteer, C.; Averett, W.R.; Stablein, N.K.

    1980-06-01T23:59:59.000Z

    Multivariate statistical analysis to support the National Uranium Resource Evaluation and to evaluate strategic and other commercially important mineral resources was carried out on Hydrogeochemical and Stream Sediment Reconnaissance data from the Montrose quadrangle, Colorado. The analysis suggests that: (1) the southern Colorado Mineral Belt is an area favorable for uranium mineral occurrences; (2) carnotite-type occurrences are likely in the nose of the Gunnison Uplift; (3) uranium mineral occurrences may be present along the western and northern margins of the West Elk crater; (4) a base-metal mineralized area is associated with the Uncompahgre Uplift; and (5) uranium and base metals are associated in some areas, and both are often controlled by faults trending west-northwest and north.

  5. Corn Belt Energy Corporation- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Corn Belt Energy Corporation (CBEC), in association with the Wabash Valley Power Association, provides its customers with the "Power Moves" energy efficiency rebate program. Through this program,...

  6. Geologic Setting of the Central Alaskan Hot Springs Belt: Implications...

    Open Energy Info (EERE)

    Sustainable Energy Production Jump to: navigation, search OpenEI Reference LibraryAdd to library Thesis: Geologic Setting of the Central Alaskan Hot Springs Belt: Implications for...

  7. Magnetic refrigeration apparatus with belt of ferro or paramagnetic material

    DOE Patents [OSTI]

    Barclay, John A. (Madison, WI); Stewart, Walter F. (Marshall, WI); Henke, Michael D. (Los Alamos, NM); Kalash, Kenneth E. (Los Alamos, NM)

    1987-01-01T23:59:59.000Z

    A magnetic refrigerator operating in the 12 to 77K range utilizes a belt which carries ferromagnetic or paramagnetic material and which is disposed in a loop which passes through the center of a solenoidal magnet to achieve cooling. The magnetic material carried by the belt, which can be blocks in frames of a linked belt, can be a mixture of substances with different Curie temperatures arranged such that the Curie temperatures progressively increase from one edge of the belt to the other. This magnetic refrigerator can be used to cool and liquefy hydrogen or other fluids.

  8. Magnetic refrigeration apparatus with belt of ferro or paramagnetic material

    DOE Patents [OSTI]

    Barclay, J.A.; Stewart, W.F.; Henke, M.D.; Kalash, K.E.

    1986-04-03T23:59:59.000Z

    A magnetic refrigerator operating in the 12 to 77 K range utilizes a belt which carries ferromagnetic or paramagnetic material and which is disposed in a loop which passes through the center of a solenoidal magnet to achieve cooling. The magnetic material carried by the belt, which can be blocks in frames of a linked belt, can be a mixture of substances with different Curie temperatures arranged such that the Curie temperatures progressively increase from one edge of the belt to the other. This magnetic refrigerator can be used to cool and liquefy hydrogen or other fluids.

  9. Corn Belt Power Coop | 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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model, clickInformationNew|Core Analysis At Geysers| Open EnergyAl.,A,CorixBelt

  10. WATER ICE IN THE KUIPER BELT

    SciTech Connect (OSTI)

    Brown, M. E.; Fraser, W. C. [Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125 (United States); Schaller, E. L., E-mail: mbrown@caltech.edu [NASA Dryden Aircraft Operations Facility, Palmdale, CA 93550 (United States)

    2012-06-15T23:59:59.000Z

    We examine a large collection of low-resolution near-infrared spectra of Kuiper Belt objects (KBOs) and centaurs in an attempt to understand the presence of water ice in the Kuiper Belt. We find that water ice on the surface of these objects occurs in three separate manners: (1) Haumea family members uniquely show surfaces of nearly pure water ice, presumably a consequence of the fragmentation of the icy mantle of a larger differentiated proto-Haumea; (2) large objects with absolute magnitudes of H < 3 (and a limited number to H = 4.5) have surface coverings of water ice-perhaps mixed with ammonia-that appears to be related to possibly ancient cryovolcanism on these large objects; and (3) smaller KBOs and centaurs which are neither Haumea family members nor cold-classical KBOs appear to divide into two families (which we refer to as 'neutral' and 'red'), each of which is a mixture of a common nearly neutral component and either a slightly red or very red component that also includes water ice. A model suggesting that the difference between neutral and red objects due to formation in an early compact solar system either inside or outside, respectively, of the {approx}20 AU methanol evaporation line is supported by the observation that methanol is only detected on the reddest objects, which are those which would be expected to have the most of the methanol containing mixture.

  11. Large Bodies in the Kuiper Belt

    E-Print Network [OSTI]

    Chadwick A. Trujillo; Jane X. Luu; Amanda S. Bosh; James L. Elliot

    2001-08-27T23:59:59.000Z

    We present a survey for bright Kuiper Belt Objects (KBOs) and Centaurs, conducted at the Kitt Peak National Observatory (KPNO) 0.9 m telescope with the KPNO 8k Mosaic CCD. The survey imaged 164 sq deg near opposition to a limiting red magnitude of 21.1. Three bright KBOs and one Centaur were found, the brightest KBO having red magnitude 19.7, about 700 km in diameter assuming a dark Centaur-like 4% albedo. We estimate the power-law differential size distribution of the Classical KBOs to have index q = 4.2 (+0.4)(-0.3), with the total number of Classical KBOs with diameters larger than 100 km equal to 4.7 (+1.6)(-1.0) x 10^4. Additionally, we find that if there is a maximum object size in the Kuiper Belt, it must be larger than 1000 km in diameter. By extending our model to larger size bodies, we estimate that 30 (+16)(-12) Charon-sized and 3.2 (+2.8)(-1.7) Pluto-sized Classical KBOs remain undiscovered.

  12. HIGH-ALBEDO C-COMPLEX ASTEROIDS IN THE OUTER MAIN BELT: THE NEAR-INFRARED SPECTRA

    SciTech Connect (OSTI)

    Kasuga, Toshihiro [Public Relations Center, National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588 (Japan); Usui, Fumihiko; Hasegawa, Sunao [Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Chuo-ku, Sagamihara 252-5210 (Japan); Ootsubo, Takafumi [Astronomical Institute, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai 980-8578 (Japan); Kuroda, Daisuke, E-mail: toshi.kasuga@nao.ac.jp [Okayama Astrophysical Observatory, National Astronomical Observatory of Japan, 3037-5 Honjo, Kamogata, Asakuchi, Okayama 719-0232 (Japan)

    2013-07-01T23:59:59.000Z

    Primitive, outer-belt asteroids are generally of low albedo, reflecting carbonaceous compositions like those of CI and CM meteorites. However, a few outer-belt asteroids having high albedos are known, suggesting the presence of unusually reflective surface minerals or, conceivably, even exposed water ice. Here, we present near-infrared (1.1-2.5 {mu}m) spectra of four outer-belt C-complex asteroids with albedos {>=}0.1. We find no absorption features characteristic of water ice (near 1.5 and 2.0 {mu}m) in the objects. Intimate mixture models set limits to the water ice by weight {<=}2%. Asteroids (723) Hammonia and (936) Kunigunde are featureless and have (60%-95%) amorphous Mg pyroxenes that might explain the high albedos. Asteroid (1276) Ucclia also shows a featureless reflection spectrum with (50%-60%) amorphous Mg pyroxenes. Asteroid (1576) Fabiola shows a possible weak, broad absorption band (1.5-2.1 {mu}m). The feature can be reproduced by (80%) amorphous Mg pyroxenes or orthopyroxene (crystalline silicate), either of which is likely to cause its high albedo. We discuss the origin of high-albedo components in primitive asteroids.

  13. ON-BELT ANALYSIS OF MINERALS USING NATURALLY OCCURRING GAMMA RADIATION

    E-Print Network [OSTI]

    Huynh, Du

    of coal. Gamma ray spectra are collected every 900 seconds from a BGO detector with 1024 channels linearly collected with a BGO (Bis- muth Germanate) gamma ray detector, which collects emis- sions from Potassium (K is used to estimate linear drift in the detector. Index Terms-- Gamma ray detector, Poisson process

  14. Minerals Yearbook 1989: Lithium

    SciTech Connect (OSTI)

    Ober, J.A.

    1989-01-01T23:59:59.000Z

    The United States led the world in lithium mineral and compound production and consumption. Estimated consumption increased slightly, and world production also grew. Sales increased for domestic producers, who announced price increases for the third consecutive year. Because lithium is electrochemically reactive and has other unique properties, there are many commercial lithium products. Producers sold lithium as mineral concentrate, brine, compound, or metal, depending upon the end use. Most lithium compounds were consumed in the production of ceramics, glass, and primary aluminum.

  15. abitibi greenstone belt: Topics by E-print Network

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

    belt object satellites, again pointing to possible differences in their origin. M. E. Brown; M. A. van Dam; A. H. Bouchez; D. Le Mignant; R. D. Campbell; J. C. Y. Chin; A....

  16. altai metallogenic belt: Topics by E-print Network

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

    belt object satellites, again pointing to possible differences in their origin. M. E. Brown; M. A. van Dam; A. H. Bouchez; D. Le Mignant; R. D. Campbell; J. C. Y. Chin; A....

  17. Corn Belt Energy Coop- Commercial Energy Efficiency Rebate Program (Illinois)

    Broader source: Energy.gov [DOE]

    Corn Belt Energy, through the Wabash Valley Power Association, offers business, school, and farm customers a variety of energy efficient rebates and incentives through its "Power Moves" program....

  18. VP 100: Brevini Wind Factory Helps Rust Belt Town's Economy ...

    Energy Savers [EERE]

    450 jobs in next two years Faced with a recession and an auto industry that ran out gas, many manufacturing towns in the Rust Belt have reinvented themselves. Some found...

  19. Nanomaterial modifications on conductivity of coal conveyer belt

    SciTech Connect (OSTI)

    Zhang, J.C.; Zhang, Y.G.; Wang, T.T.; Yang, L.F.; Liu, S.M.; Yang, D.H.; Zhang, M.; Gao, X. [Zhongyuan University of Technology, Zhengzhou (China)

    2008-08-15T23:59:59.000Z

    By analyzing the macro electrical properties and the microscopic structure from SEM of nanomaterials modified mine transmission belt samples. The influences of the filling process of inorganic nano particle-filled rubber and PVC polymer on the physical properties of coal transmission belt is reviewed, as well as PTC and NTC effect on the stability of the physical properties and stability of materials. Influence of nano-materials and polymer materials for rubber and temperature changes in the plastic filled refining process. Crosslinker and major filler changes in the amount and filled plastic chain time on the conductivity of coal conveyer belt is studied. Influence of cure temperature. Cure time on the mechanical performance is studied. The microscopic mechanism of macro conductivity change of conveyer belt is discussed.

  20. automatic seat belts: Topics by E-print Network

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

    There is no agreement on the expansion time, which varies from 30 - 100 Myr. The inclination of the Gould belt is not explained by the above models of expansion. An oblique...

  1. allen radiation belt: Topics by E-print Network

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

    particles. Hudson, H S; Frewen, S F N; DeRosa, M L 2009-01-01 7 Drivers, Detection, and Impacts of Precipitation from the Radiation Belts C. J. Rodger1 Physics Websites Summary:...

  2. abakaliki fold belt: Topics by E-print Network

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

    Cenozoic partitioning of oblique plate convergence in the Zagros fold-and-thrust belt (Iran) Physics Websites Summary: of oblique plate convergence in the Zagros fold-and-thrust...

  3. Engineering and Mineral Resources

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    News ????????????????? ® College of Engineering and Mineral Resources Winter 2008 table of contents. . . . . . . . . . . . . . . . . . . . 7 wvCROSSROADS DepartmentofCivilandEnvironmentalEngineering Civil engineering exchange program and environmental engineering with a focus in transportation will have the opportunity to study abroad as part

  4. Biomimetic Mineralization: Mesoporous Biological mineral synthesis, in contrast to conven-

    E-Print Network [OSTI]

    Biomimetic Mineralization: Mesoporous Structures Biological mineral synthesis, in contrast of mineral crystals. Mesophases are materials which have domain length scales of the order of a few as a molecular blueprint for the site- directed formation of the inorganic phase, by providing an interface

  5. JOVIAN EARLY BOMBARDMENT: PLANETESIMAL EROSION IN THE INNER ASTEROID BELT

    SciTech Connect (OSTI)

    Turrini, D.; Coradini, A.; Magni, G., E-mail: diego.turrini@ifsi-roma.inaf.it [Istituto di Astrofisica e Planetologia Spaziali, INAF-IAPS, Via Fosso del Cavaliere 100, 00133, Rome (Italy)

    2012-05-01T23:59:59.000Z

    The asteroid belt is an open window on the history of the solar system, as it preserves records of both its formation process and its secular evolution. The progenitors of the present-day asteroids formed in the Solar Nebula almost contemporary to the giant planets. The actual process producing the first generation of asteroids is uncertain, strongly depending on the physical characteristics of the Solar Nebula, and the different scenarios produce very diverse initial size-frequency distributions (SFDs). In this work, we investigate the implications of the formation of Jupiter, plausibly the first giant planet to form, on the evolution of the primordial asteroid belt. The formation of Jupiter triggered a short but intense period of primordial bombardment, previously unaccounted for, which caused an early phase of enhanced collisional evolution in the asteroid belt. Our results indicate that this Jovian Early Bombardment caused the erosion or the disruption of bodies smaller than a threshold size, which strongly depends on the SFD of the primordial planetesimals. If the asteroid belt was dominated by planetesimals less than 100 km in diameter, the primordial bombardment would have caused the erosion of bodies smaller than 200 km in diameter. If the asteroid belt was instead dominated by larger planetesimals, the bombardment would have resulted in the destruction of bodies as big as 500 km.

  6. Angle stations in or for endless conveyor belts

    DOE Patents [OSTI]

    Steel, Alan (Glasgow, GB6)

    1987-04-07T23:59:59.000Z

    In an angle station for an endless conveyor belt, there are presented to each incoming run of the belt stationary curved guide members (18, 19) of the shape of a major segment of a right-circular cylinder and having in the part-cylindrical portion (16 or 17) thereof rectangular openings (15) arranged in parallel and helical paths and through which project small freely-rotatable rollers (14), the continuously-changing segments of the curved surfaces of which projecting through said openings (15) are in attitude to change the direction of travel of the belt (13) through 90.degree. during passage of the belt about the part-cylindrical portion (16 or 17) of the guide member (18 or 19). The rectangular openings (15) are arranged with their longer edges lengthwise of the diagonals representing the mean of the helix but with those of a plurality of the rows nearest to each end of the part-cylindrical portion (16 or 17) slightly out of axial symmetry with said diagonals, being slightly inclined in a direction about the intersections (40) of the diagonals of the main portion of the openings, to provide a "toe-in" attitude in relation to the line of run of the endless conveyor belt.

  7. Mineral Rights and Proceeds (Nebraska)

    Broader source: Energy.gov [DOE]

    This section contains provisions which determine when mineral rights are presumed to be abandoned by property owners.

  8. Multiphase Sequestration Geochemistry: Model for Mineral Carbonation...

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

    Multiphase Sequestration Geochemistry: Model for Mineral Carbonation. Multiphase Sequestration Geochemistry: Model for Mineral Carbonation. Abstract: Carbonation of formation...

  9. Mineral Requirements of Sheep.

    E-Print Network [OSTI]

    Fraps, G. S. (George Stronach)

    1918-01-01T23:59:59.000Z

    constituents in feed, residues, and excrements were estimated. In connection with other digestion experiments, estimates were made of certain ash constituents in feeds, excrements and urine. The results of this work throw light upon the mineral requirements...,11 grams phosphoric acid. The ratio of lime to phosphoric acid in tri- calcium phosphate is 1 :0.80. Table 7.-Average magnesia eaten and digested. BALANCE EXPEBIMENTS In twenty tests with ten rations, the urine was analyzed in addition to the feeds...

  10. Modeling the radiation belt electrons with radial diffusion driven by the solar wind

    E-Print Network [OSTI]

    Li, Xinlin

    in the enhancement of radiation belt electrons yet leaves a significant portion of the variance unaccounted for. We

  11. Are energetic electrons in the solar wind the source of the outer radiation belt?

    E-Print Network [OSTI]

    Li, Xinlin

    Are energetic electrons in the solar wind the source of the outer radiation belt? Xinlin Li,1 D. N in the solar wind are the source of the outer rela- tivistic electron radiation belt. Though there is some radiation belt, the phase space density of 20-200 keV electrons in the solar wind is not adequate to supply

  12. Radiation Belt Activity Indices and Solar Proton Event Alarm on the CRATERRE Project Web Site

    E-Print Network [OSTI]

    Radiation Belt Activity Indices and Solar Proton Event Alarm on the CRATERRE Project Web Site D--Two Radiation Belt Activity Indices, based on electron flux measurement >300 keV and >1.6 MeV, and one Solar updated. Index Terms- CRATERRE project, Radiation belts activity, Space environment I. INTRODUCTION

  13. Effective Conveyor Belt Inspection for Improved Mining Productivity

    SciTech Connect (OSTI)

    Chris Fromme

    2006-06-01T23:59:59.000Z

    This document details progress on the project entitled ''Effective Conveyor Belt Inspection for Improved Mining Productivity'' during the period from November 15, 2004 to May 14, 2004. Highlights include fabrication of low-cost prototype hardware, acquisition of infrared thermal data, and initial design of a Smart-Camera based system.

  14. Effective Conveyor Belt Inspection for Improved Mining Productivity

    SciTech Connect (OSTI)

    Chris Fromme

    2006-06-01T23:59:59.000Z

    This document details progress on the project entitled ''Effective Conveyor Belt Inspection for Improved Mining Productivity'' during the period from November 15, 2004 to May 14, 2004. Highlights include fabrication of an improved LED lightbar, fabrication of a line-scan sensor head for the Smart-Camera based prototype, and development of prototype vulcanized splice detection algorithms.

  15. Institute for Mineral and Energy

    E-Print Network [OSTI]

    for energy. Mining and processing are vulnerable to energy price increases. Power is the largest contributingInstitute for Mineral and Energy Resources Answering Global Resource and Energy Challenges #12;Answering Global Resource and Energy Challenges 2 Vision The vision of the Institute for Mineral and Energy

  16. Mineral dissolution kinetics at the pore scale

    E-Print Network [OSTI]

    Li, L.; Steefel, C.I.; Yang, L.

    2008-01-01T23:59:59.000Z

    Weathering Rates of Silicate Minerals , Vol. 31 (ed. A. F.as a result of secondary mineral precipitation and approachWeathering Rates of Silicate Minerals , Vol. 31, pp. 565-

  17. Migrating Contaminant Sticks To Minerals | EMSL

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

    Migrating Contaminant Sticks To Minerals Aluminum oxide in common soil minerals captures uranium Using computational chemistry models, scientists at Pacific Northwest National...

  18. Investigation of Mineral Transformations in Wet Supercritical...

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

    Mineral Transformations in Wet Supercritical CO2 by Electron Microscopy. Investigation of Mineral Transformations in Wet Supercritical CO2 by Electron Microscopy. Abstract: The...

  19. Universal ripper miner

    DOE Patents [OSTI]

    Morrell, Roger J. (Bloomington, MN); Larson, David A. (Minneapolis, MN)

    1991-01-01T23:59:59.000Z

    A universal ripper miner used to cut, collect and transfer material from an underground mine working face includes a cutter head that is vertically movable in an arcuate cutting cycle by means of drive members, such as hydraulically actuated pistons. The cutter head may support a circular cutter bit having a circular cutting edge that may be indexed to incrementally expose a fresh cutting edge. An automatic indexing system is disclosed wherein indexing occurs by means of a worm gear and indexing lever mechanism. The invention also contemplates a bi-directional bit holder enabling cutting to occur in both the upstroke and the downstroke cutting cycle. Another feature of the invention discloses multiple bits arranged in an in-line, radially staggered pattern, or a side-by-side pattern to increase the mining capacity in each cutting cycle. An on-board resharpening system is also disclosed for resharpening the cutting edge at the end of cutting stroke position. The aforementioned improvement features may be used either singly, or in any proposed combination with each other.

  20. RON MINER MEMORIAL BIOENGINEERING SCHOLARSHIP The Ron Miner Memorial Scholarship honors the memory of J. Ronald Miner, an

    E-Print Network [OSTI]

    Tullos, Desiree

    RON MINER MEMORIAL BIOENGINEERING SCHOLARSHIP The Ron Miner Memorial Scholarship honors the memory of J. Ronald Miner, an Agricultural Engineering professor at OSU for over thirty years. Ron came to OSU from the Ron Miner Memorial Scholarship which resides with the OSU Foundation. The name

  1. J Bone Miner Metab . Author manuscript Mineral maturity and crystallinity index are distinct characteristics of bone

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    J Bone Miner Metab . Author manuscript Page /1 13 Mineral maturity and crystallinity index are distinct characteristics of bone mineral Delphine Farlay 1 * , G rard Panczeré 2 , Christian Rey 3 , Pierre the hypothesis that mineral maturity and crystallinity index are two different characteristics of bone mineral

  2. Tolerance of combined salinity and O2 deficiency in Hordeum marinum accessions from the grain-belt of Western Australia

    E-Print Network [OSTI]

    Malik1,2,3, AI; English1,2, JP; Shepherd1,4, KA; Islam2,5, AKMR; Colmer1,2, TD

    2009-01-01T23:59:59.000Z

    from the grain-belt of Western Australia for tolerance toin the accessions from Western Australia, as well as K +from the grain-belt of Western Australia. Single heads were

  3. A parametric study of the source rate for outer radiation belt electrons using a Kalman filter

    E-Print Network [OSTI]

    Li, Xinlin

    A parametric study of the source rate for outer radiation belt electrons using a Kalman filter Q increasingly popular to describe the outer radiation belt energetic electron environment. We use a Kalman included. We augment the Kalman filter to include the intensity of local acceleration in the state vector

  4. Structure and evolution of the active fold and thrust belt of southwestern Taiwan using GPS geodesy

    E-Print Network [OSTI]

    Hickman, John Bibb

    1999-01-01T23:59:59.000Z

    ) from north to south, a dramatic change in the width of the deformation front of the fold and thrust belt which is accentuated across the Michih fault, and 4) the Tulungwan fault, a bounding fault between the Western Foothills and the Slate Belt, appears...

  5. Precambrian Research 136 (2005) 2750 The Wadi Mubarak belt, Eastern Desert of Egypt

    E-Print Network [OSTI]

    Fritz, Harald

    Precambrian Research 136 (2005) 27­50 The Wadi Mubarak belt, Eastern Desert of Egypt, Graz, Austria b Mansoura University, Faculty of Science, Geology Department, El Mansoura, Egypt c February 2003; accepted 3 September 2004 Abstract The Wadi Mubarak belt in Egypt strikes west­east (and

  6. Thermo-mechanical structure beneath the young orogenic belt of Taiwan

    E-Print Network [OSTI]

    Ma, Kuo-Fong

    Thermo-mechanical structure beneath the young orogenic belt of Taiwan Kuo-Fong Ma*, Teh-Ru Alex Abstract We investigate the thermo-mechanical properties beneath the young orogenic belt of Taiwan.V. All rights reserved. Keywords: Thermo-mechanical; Rheology; Seismicity; Strength profile; Composition

  7. Comparison of two approaches to automated PI controller tuning for an industrial weigh belt feeder

    E-Print Network [OSTI]

    Collins, Emmanuel

    Comparison of two approaches to automated PI controller tuning for an industrial weigh belt feeder, are applied to an industrial weigh belt feeder that has significant nonlinearities. Both methods do--The Instrumentation, Systems, and Automation Society. Keywords: Fuzzy logic control; Unfalsified control; PI control

  8. Minerals handbook 1984/1985

    SciTech Connect (OSTI)

    Crowson, P.

    1985-01-01T23:59:59.000Z

    This handbook consists of statistical tables giving a profile of almost 50 strategic minerals. A compendium of statistics on reserves, production, and trade, the book provides a view of international supply and demand. Information is complied here which is otherwise available only through scattered sources. The 1984/1985 edition has been updated and expanded. Reserves have been recalculated on the new basis instituted by the United States. Seven new minerals have been added: arsenic, berrylium, bismuth, boron, gallium, rare earths, and tellurium. Growth rates of consumption have been extended and the section on end use of patterns for each mineral now shows the percentage for Europe and Japan as well as the U.S.

  9. Green belts in the hands and minds of farmers: A socio-agronomical approach to farmers' practices

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 Green belts in the hands and minds of farmers: A socio-agronomical approach to farmers' practices.alavoine-mornas@irstea.fr ; sabine.girard@irstea.fr Keywords: green belts - biodiversity ­ farmers practices ­ French Alps Abstract of intensive agriculture. In France, this topic is addressed by the "blue and green belts" measure, which

  10. U.S. Department of Energy Office of Legacy Management Legacy Uranium Mine Site Reclamation - Lessons Learned - 12384

    SciTech Connect (OSTI)

    Kilpatrick, Laura E. [U.S. Department of Energy Office of Legacy Management, Westminster, Colorado 80021 (United States); Cotter, Ed [S.M. Stoller Corporation, Grand Junction, Colorado 81503 (United States)

    2012-07-01T23:59:59.000Z

    The U.S. Department of Energy (DOE) Office of Legacy Management is responsible for administering the DOE Uranium Leasing Program (ULP) and its 31 uranium lease tracts located in the Uravan Mineral Belt of southwestern Colorado (see Figure 1). In addition to administering the ULP for the last six decades, DOE has also undertaken the significant task of reclaiming a large number of abandoned uranium (legacy) mine sites and associated features located throughout the Uravan Mineral Belt. In 1995, DOE initiated a 3-year reconnaissance program to locate and delineate (through extensive on-the-ground mapping) the legacy mine sites and associated features contained within the historically defined boundaries of its uranium lease tracts. During that same time frame, DOE recognized the lack of regulations pertaining to the reclamation of legacy mine sites and contacted the U.S. Bureau of Land Management (BLM) concerning the reclamation of legacy mine sites. In November 1995, The BLM Colorado State Office formally issued the United States Department of the Interior, Colorado Bureau of Land Management, Closure/Reclamation Guidelines, Abandoned Uranium Mine Sites as a supplement to its Solid Minerals Reclamation Handbook (H-3042-1). Over the next five-and-one-half years, DOE reclaimed the 161 legacy mine sites that had been identified on DOE withdrawn lands. By the late 1990's, the various BLM field offices in southwestern Colorado began to recognize DOE's experience and expertise in reclaiming legacy mine sites. During the ensuing 8 years, BLM funded DOE (through a series of task orders) to perform reclamation activities at 182 BLM mine sites. To date, DOE has reclaimed 372 separate and distinct legacy mine sites. During this process, DOE has learned many lessons and is willing to share those lessons with others in the reclamation industry because there are still many legacy mine sites not yet reclaimed. DOE currently administers 31 lease tracts (11,017 ha) that collectively contain over 220 legacy (abandoned) uranium mine sites. This contrasts to the millions of hectares administered by the BLM, the U.S. Forest Service, and other federal, tribal, and state agencies that contain thousands of such sites. DOE believes that the processes it has used provide a practical and cost-effective approach to abandoned uranium mine-site reclamation. Although the Federal Acquisition Regulations preclude DOE from competing with private industry, DOE is available to assist other governmental and tribal agencies in their reclamation efforts. (authors)

  11. Eastern Overthrust Belt. Signs of a hoped-for awakening

    SciTech Connect (OSTI)

    Bartlett, C.S. Jr.; Biggs, T.H.

    1982-06-01T23:59:59.000Z

    Exploration for oil and gas is on the upswing in the SW Virginia sector of the Eastern Overthrust Belt in the 200-mile long portion between Lee and Montgomery Counties. In the past several months one new oil field has been opened and the area's only gas field has been revived after lying idle for 23 yr. These signs of a hoped-for awakening have been accompanied by an intense leasing program by many oil companies. This review is confined to the geology of the strongly folded and faulted area of SW Virginia. In the Overthrust area, early studies indicated that oil would be found only in portions of Lee and Scott Counties, and that other areas would contain only natural gas because of the greater intensity of regional metamorphism. Drilling so far has confirmed these forecasts. This study will be divided in a similar manner.

  12. King Fahd University of Petroleum and Minerals

    E-Print Network [OSTI]

    Al-Ghadhban, Samir

    King Fahd University of Petroleum and Minerals Summer Training Report 2010 Abdul-Aziz Al ...........................................................................................13 #12;2 1. Introduction King Fahd University of Petroleum and Minerals (KFUPM) give an opportunity

  13. Mineral Supplementation of Beef Cows in Texas

    E-Print Network [OSTI]

    Herd, Dennis B.

    1997-06-04T23:59:59.000Z

    Nutrient balance is the key to any effective nutrition program, especially where trace minerals are concerned. Many factors cannot be optimized when mineral intake is not properly balanced. Recommendations are given for the producer....

  14. Mineral Selection for Multicomponent Equilibrium Geothermometry

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

    Plamer, C. D.; Ohly, S. R.; Smith, R. W.; Neupane, G.; McLing, T.; Mattson, E.

    2015-04-01T23:59:59.000Z

    Muliticomponent geothermometry requires knowledge of the mineral phases in the reservoir with which the geothermal fluids may be equilibrated.

  15. Mineral Supplementation of Beef Cows in Texas 

    E-Print Network [OSTI]

    Herd, Dennis B.

    1997-06-04T23:59:59.000Z

    in these problem herds returned to acceptable levels with mineral supplementation practices described in this publication. Need for Minerals Maintenance, growth, lactation, reproduction and animal health cannot be optimized where mineral intake is not properly... than during lactation. Since milk is low in copper, the cow must build the fetal liver concentration of copper 4 Table 1. Diet Formulation Guidelines 1996 Beef NRC Common Requirements Formulation Lactating Lactating Maximum Mineral Dry Cow Cow Dry Cow...

  16. Mineral minimization in nature's alternative teeth

    E-Print Network [OSTI]

    Zok, Frank

    REVIEW Mineral minimization in nature's alternative teeth Christopher C. Broomell1, , Rashda K, University of California, Santa Barbara, CA 93106, USA Contrary to conventional wisdom, mineralization, with little to no help from mineralization. Based on biochemical analyses, three of these mouthparts, the jaws

  17. PROGRAM AND ABSTRACTS FOR CLAY MINERALS SOCIETY

    E-Print Network [OSTI]

    Rathbun, Julie A.

    r PROGRAM AND ABSTRACTS FOR CLAY MINERALS SOCIETY 28th ANNUAL MEETING NI\\SI\\National Aeronautit &II LPI #12;PROGRAM AND ABSTRACTS FOR CLAY MINERALS SOCIETY 28th ANNUAL MEETING Houston, Texas October contains abstracts that have been accepted for presentation at the Clay Minerals Society 28th Annual

  18. 2.20 Properties of Rocks and Minerals -Magnetic Properties of Rocks and Minerals

    E-Print Network [OSTI]

    Dunin-Borkowski, Rafal E.

    2.20 Properties of Rocks and Minerals - Magnetic Properties of Rocks and Minerals R. J. Harrison, R 621 622 623 623 579 #12;580 Magnetic Properties of Rocks and Minerals 2.20.5.3 2.20.5.4 2, and are present in all types of rocks, sediments, and soils. These minerals retain a memory of the geomagnetic

  19. Implications of thermal events on thrust emplacement sequence in the Appalachian fold and thrust belt: Some new vitrinite reflectance data

    SciTech Connect (OSTI)

    Lewis, S.E.; Hower, J.C. (Montana Tech, Butte (USA))

    1990-11-01T23:59:59.000Z

    Interpretation of existing geothermometry data combined with new vitrinite reflectance data, within the framework of a detailed composite tectonic setting, elucidates the evolution of structural sequencing of thrust sheets during the Alleghanian event in the Valley and Ridge Province in Virginia. That the Pulaski thrust sheet preceded the Saltville thrust sheet in the emplacement sequence, and that both reached thermal maxima prior to, or during, respective emplacement may be inferred from vitrinite and other geothermometry data. In contrast, the Narrows and St. Clair thrust sheets probably each attained their thermal maximum after emplacement. New vitrinite reflectance data are consistent with CAI and other temperature-sensitive information heretofore ascertained in the Valley and Ridge Province and support previously established maximum temperatures of ca. 200C for strata of the Saltville thrust sheet as young as Mississippian. R{sub max} values from Mississippian coals in the Price Formation of the Saltville sheet, beneath but near the Pulaski thrust, range from 1.61% to 2.60%. At the structural front of the fold and thrust belt, a single Mississippian coal sample from the Bluefield Formation yields an R{sub max} value of 1.35%. Those coals showing highest R{sub max} values are more intensely fractured with secondary minerals filling the fractures. Warm fluids introduced during tectonic events may have played at least as important a role as that of combined stratigraphic and tectonic burial.

  20. A List of Kansas Minerals

    E-Print Network [OSTI]

    Grover, Charles H.

    1895-01-01T23:59:59.000Z

    Master Th e s i s Geology Grov e r , C h a r l e s H. 1895 L i s t of Kansas m i n e r a l s * A l i s t of Kansas Minerals with "brief notes on the^cr^stjalogr&phio (form, chemical composition, and the p r i n c i p a l l o c a l i t i e s f...£om which £hey have been reported* ^S/V-y The f o l l o w i n g l i s t , i t i s believed, embraces a l l the minerals of the state that have been so f a r discovered and reported. Two s i m i l a r i i s t s have been heretofore published i n...

  1. Mineral bridges in nacre revisited

    E-Print Network [OSTI]

    Antonio G. Checa; Julyan H. E. Cartwright; Marc-Georg Willinger

    2012-07-20T23:59:59.000Z

    We confirm with high-resolution techniques the existence of mineral bridges between superposed nacre tablets. In the towered nacre of both gastropods and the cephalopod Nautilus there are large bridges aligned along the tower axes, corresponding to gaps (150-200 nm) in the interlamellar membranes. Gaps are produced by the interaction of the nascent tablets with a surface membrane that covers the nacre compartment. In the terraced nacre of bivalves bridges associated with elongated gaps in the interlamellar membrane (> 100 nm) have mainly been found at or close to the edges of superposed parental tablets. To explain this placement, we hypothesize that the interlamellar membrane breaks due to differences in osmotic pressure across it when the interlamellar space below becomes reduced at an advanced stage of calcification. In no cases are the minor connections between superimposed tablets (mineral bridges, found to be such.

  2. Thrust belt architecture of the central and southern Western Foothills of Taiwan

    E-Print Network [OSTI]

    Rodriguez-Roa, Fernando Antonio

    2009-05-15T23:59:59.000Z

    segments. The restored position of the preexisting normal faults places the current trace of the Western Foothills-Slate Belt boundary beneath the Coastal Range. The restoration of WFFTB’s rocks to their depositional locations also supports the tectonic...

  3. Thermal and Structural Constraints on the Tectonic Evolution of the Idaho-Wyoming-Utah Thrust Belt

    E-Print Network [OSTI]

    Chapman, Shay Michael

    2013-08-09T23:59:59.000Z

    The timing of motion on thrust faults in the Idaho-Wyoming-Utah (IWU) thrust belt comes from synorogenic sediments, apatite thermochronology and direct dating of fault rocks coupled with good geometrical constraints of the subsurface structure...

  4. At several localities around the world, thrust belts have developed on both sides of

    E-Print Network [OSTI]

    ten Brink, Uri S.

    of the Eastern Greater Antilles arc (Hispaniola and Puerto Rico), whereas a south-verging thrust belt called; Fig. 2). The Eastern Greater Antilles arc (Hispaniola and Puerto Rico) of the northeastern Caribbean

  5. The Electric Field and Waves Instruments on the Radiation Belt Storm Probes Mission

    E-Print Network [OSTI]

    Wygant, J. R.

    The Electric Fields and Waves (EFW) Instruments on the two Radiation Belt Storm Probe (RBSP) spacecraft (recently renamed the Van Allen Probes) are designed to measure three dimensional quasi-static and low frequency ...

  6. Mineral Scavenger Hunt 1. CONTRIBUTOR'S NAME: Johnny MacLean

    E-Print Network [OSTI]

    Brewer, Carol

    Mineral Scavenger Hunt 1. CONTRIBUTOR'S NAME: Johnny MacLean 2. NAME OF INQUIRY: Mineral Scavenger from minerals? What are some objects in the classroom that come from minerals? What minerals did these objects come from? b. Ecological Theme(s): Minerals are the building blocks of rocks. Rocks

  7. Mineralization of Carbon Dioxide: Literature Review

    SciTech Connect (OSTI)

    Romanov, V; Soong, Y; Carney, C; Rush, G; Nielsen, B; O'Connor, W

    2015-01-01T23:59:59.000Z

    CCS research has been focused on CO2 storage in geologic formations, with many potential risks. An alternative to conventional geologic storage is carbon mineralization, where CO2 is reacted with metal cations to form carbonate minerals. Mineralization methods can be broadly divided into two categories: in situ and ex situ. In situ mineralization, or mineral trapping, is a component of underground geologic sequestration, in which a portion of the injected CO2 reacts with alkaline rock present in the target formation to form solid carbonate species. In ex situ mineralization, the carbonation reaction occurs above ground, within a separate reactor or industrial process. This literature review is meant to provide an update on the current status of research on CO2 mineralization. 2

  8. Water Ice on the Satellite of Kuiper Belt Object 2003 EL61

    E-Print Network [OSTI]

    K. M Barkume; M. E. Brown; E. L. Schaller

    2006-01-24T23:59:59.000Z

    We have obtained a near infrared spectrum of the brightest satellite of the large Kuiper Belt Object, 2003 EL61. The spectrum has absorption features at 1.5 and 2.0 microns, indicating that water ice is present on the surface. We find that the satellite's absorption lines are much deeper than water ice features typically found on Kuiper Belt Objects. We argue that the unusual spectrum indicates that the satellite was likely formed by impact and not by capture.

  9. An economic analysis of sprinkler irrigation technology in the Texas Rice Belt

    E-Print Network [OSTI]

    Parker, Michael R

    1985-01-01T23:59:59.000Z

    AN ECONOMIC ANALYSIS OF SPRINKLER IRRIGATION TECHNOLOGY IN THE TEXAS RICE BELT A Thesis MICHAEL RAY PARKER Submitted to the Graduate College of Texas ASM University in partial fulfillment of the requirements for the degree of MASTER OP... SCIENCE December 1985 Major Subject: Agricultural Economics AN ECONOMIC ANALYSIS OF SPRINKLER IRRIGATION TECHNOLOGY IN THE TEXAS RICE BELT A Thesis MICHAEL R. PARKER Approved as to style and content by: M. Edward Rister (Co-Chairman) Ronald C...

  10. Mineral Resource Information System for Field Lab in the Osage Mineral Reservation Estate

    SciTech Connect (OSTI)

    Carroll, H.B.; Johnson, William I.

    1999-04-27T23:59:59.000Z

    The Osage Mineral Reservation Estate is located in Osage County, Oklahoma. Minerals on the Estate are owned by members of the Osage Tribe who are shareholders in the Estate. The Estate is administered by the Osage Agency, Branch of Minerals, operated by the U.S. Bureau of Indian Affairs (BIA). Oil, natural gas, casinghead gas, and other minerals (sand, gravel, limestone, and dolomite) are exploited by lessors. Operators may obtain from the Branch of Minerals and the Osage Mineral Estate Tribal Council leases to explore and exploit oil, gas, oil and gas, and other minerals on the Estate. Operators pay a royalty on all minerals exploited and sold from the Estate. A mineral Resource Information system was developed for this project to evaluate the remaining hydrocarbon resources located on the Estate. Databases on Microsoft Excel spreadsheets of operators, leases, and production were designed for use in conjunction with an evaluation spreadsheet for estimating the remaining hydrocarbons on the Estate.

  11. Storm/substorm signatures in the outer belt

    SciTech Connect (OSTI)

    Korth, A.; Friedel, R.H.W.; Mouikis, C. [Max-Planck-Inst. fuer Aeronomie, Lindau (Germany); Fennell, J.F. [Aerospace Corp., El Segundo, CA (United States)

    1998-12-01T23:59:59.000Z

    The response of the ring current region is compared for periods of storm and substorm activity, with an attempt to isolate the contributions of both processes. The authors investigate CRRES particle data in an overview format that allows the display of long-term variations of the outer radiation belt. They compare the evolution of the ring current population to indicators of storm (Dst) and substorm (AE) activity and examine compositional changes. Substorm activity leads to the intensification of the ring current at higher L (L {approximately} 6) and lower ring current energies compared to storms (L {approximately} 4). The O{sup +}/H{sup +} ratio during substorms remains low, near 10%, but is much enhanced during storms (can exceed 100%). They conclude that repeated substorms with an AE {approximately} 900 nT lead to a {Delta}Dst of {approximately} 30 nT, but do not contribute to Dst during storm main phase as substorm injections do not form a symmetric ring current during such disturbed times.

  12. On the Plutinos and Twotinos of the Kuiper Belt

    E-Print Network [OSTI]

    E. I. Chiang; A. B. Jordan

    2002-10-18T23:59:59.000Z

    We illuminate dynamical properties of Kuiper Belt Objects (KBOs) in the 3:2 (``Plutino'') and 2:1 (``Twotino'') Neptunian resonances within the model of resonant capture and migration. We analyze a series of numerical integrations, each involving the 4 migratory giant planets and 400 test particles distributed throughout trans-Neptunian space, to measure efficiencies of capture as functions of migration speed. Snapshots of the spatial distribution of resonant KBOs reveal that Twotinos cluster +/- 75 degrees away from Neptune's longitude, while Plutinos cluster +/- 90 degrees away. Longitudinal clustering persists even for surveys that are not volume-limited in their ability to detect resonant KBOs. Remarkably, between -90 degrees and -60 degrees of Neptune's longitude, we find the sky density of Twotinos to nearly equal that of Plutinos, despite the greater average distance of Twotinos. We couple our findings to observations to crudely estimate that the intrinsic Twotino population is within a factor of 3 of the Plutino population. Most strikingly, the migration model predicts that more Twotinos may lie at longitudes behind that of Neptune than ahead of it. The magnitude of the asymmetry amplifies dramatically with faster rates of migration and can be as large as 300%. A differential measurement of the sky density of 2:1 resonant objects behind of and in front of Neptune's longitude would powerfully constrain the migration history of that planet.

  13. Initial highlights from the Herschel Gould Belt survey

    E-Print Network [OSTI]

    André, Ph; Bontemps, S; Könyves, V; Motte, F; Schneider, N; Didelon, P; Minier, V; Saraceno, P; Ward-Thompson, D; Di Francesco, J; White, G; Molinari, S; Testi, L; Abergel, A; Griffin, M; Henning, Th; Royer, P; Merín, B; Vavrek, R; Attard, M; Arzoumanian, D; Wilson, C D; Ade, P; Aussel, H; Baluteau, J -P; Benedettini, M; Bernard, J -Ph; Blommaert, J A D L; Cambrésy, L; Cox, P; Di Giorgio, A; Hargrave, P; Hennemann, M; Huang, M; Kirk, J; Krause, O; Launhardt, R; Leeks, S; Pennec, J Le; Li, J Z; Martin, P; Maury, A; Olofsson, G; Omont, A; Peretto, N; Pezzuto, S; Prusti, T; Roussel, H; Russeil, D; Sauvage, M; Sibthorpe, B; Sicilia-Aguilar, A; Spinoglio, L; Waelkens, C; Woodcraft, A; Zavagno, A

    2010-01-01T23:59:59.000Z

    We summarize the first results from the Gould Belt survey, obtained toward the Aquila Rift and Polaris Flare regions during the 'science demonstration phase' of Herschel. Our 70-500 micron images taken in parallel mode with the SPIRE and PACS cameras reveal a wealth of filamentary structure, as well as numerous dense cores embedded in the filaments. Between ~ 350 and 500 prestellar cores and ~ 45-60 Class 0 protostars can be identified in the Aquila field, while ~ unbound starless cores and no protostars are observed in the Polaris field. The prestellar core mass function (CMF) derived for the Aquila region bears a strong resemblance to the stellar initial mass function (IMF), already confirming the close connection between the CMF and the IMF with much better statistics than earlier studies. Comparing and contrasting our Herschel results in Aquila and Polaris, we propose an observationally-driven scenario for core formation according to which complex networks of long, thin filaments form first within molecul...

  14. Volatile Loss and Classification of Kuiper Belt Objects

    E-Print Network [OSTI]

    Johnson, R E; Young, L A; Volkov, A N; Schmidt, C

    2015-01-01T23:59:59.000Z

    Observations indicate that some of the largest Kuiper Belt Objects (KBOs) have retained volatiles in the gas phase, which implies the presence of an atmosphere that can affect their reflectance spectra and thermal balance. Volatile escape rates driven by solar heating of the surface were estimated by Schaller and Brown (2007) (SB) and Levi and Podolak (2009)(LP) using Jeans escape from the surface and a hydrodynamic model respectively. Based on recent molecular kinetic simulations these rates can be hugely in error (e.g., a factor of $\\sim 10^{16}$ for the SB estimate for Pluto). In this paper we estimate the loss of primordial N$_2$ for several large KBOs guided by recent molecular kinetic simulations of escape due to solar heating of the surface and due to UV/EUV heating of the upper atmosphere. For the latter we extrapolate simulations of escape from Pluto (Erwin et al. 2013) using the energy limited escape model recently validated for the KBOs of interest by molecular kinetic simulations (Johnson et al. 2...

  15. Planar resonant periodic orbits in Kuiper belt dynamics

    E-Print Network [OSTI]

    George Voyatzis; Thomas Kotoulas

    2005-02-28T23:59:59.000Z

    In the framework of the planar restricted three body problem we study a considerable number of resonances associated to the Kuiper Belt dynamics and located between 30 and 48 a.u. Our study is based on the computation of resonant periodic orbits and their stability. Stable periodic orbits are surrounded by regular librations in phase space and in such domains the capture of trans-Neptunian object is possible. All the periodic orbits found are symmetric and there is evidence for the existence of asymmetric ones only in few cases. In the present work first, second and third order resonances are under consideration. In the planar circular case we found that most of the periodic orbits are stable. The families of periodic orbits are temporarily interrupted by collisions but they continue up to relatively large values of the Jacobi constant and highly eccentric regular motion exists for all cases. In the elliptic problem and for a particular eccentricity value of the primary bodies the periodic orbits are isolated. The corresponding families, where they belong to, bifurcate from specific periodic orbits of the circular problem and seem to continue up to the rectilinear problem. Both stable and unstable orbits are obtained for each case. In the elliptic problem the unstable orbits found are associated with narrow chaotic domains in phase space. The evolution of the orbits, which are located in such chaotic domains, seems to be practically regular and bounded for long time intervals.

  16. Kuiper belt structure around nearby super-Earth host stars

    E-Print Network [OSTI]

    Kennedy, Grant M; Marmier, Maxime; Greaves, Jane S; Wyatt, Mark C; Bryden, Geoffrey; Holland, Wayne; Lovis, Christophe; Matthews, Brenda C; Pepe, Francesco; Sibthorpe, Bruce; Udry, Stéphane

    2015-01-01T23:59:59.000Z

    We present new observations of the Kuiper belt analogues around HD 38858 and HD 20794, hosts of super-Earth mass planets within 1 au. As two of the four nearby G-type stars (with HD 69830 and 61 Vir) that form the basis of a possible correlation between low-mass planets and debris disc brightness, these systems are of particular interest. The disc around HD 38858 is well resolved with Herschel and we constrain the disc geometry and radial structure. We also present a probable JCMT sub-mm continuum detection of the disc and a CO J=2-1 upper limit. The disc around HD 20794 is much fainter and appears marginally resolved with Herschel, and is constrained to be less extended than the discs around 61 Vir and HD 38858. We also set limits on the radial location of hot dust recently detected around HD 20794 with near-IR interferometry. We present HARPS upper limits on unseen planets in these four systems, ruling out additional super-Earths within a few au, and Saturn-mass planets within 10 au. We consider the disc st...

  17. Growth and erosion of fold-and-thrust belts with an application to the Aconcagua fold-and-thrust belt, Argentina

    E-Print Network [OSTI]

    Hilley, George

    -and-thrust belt, Argentina G. E. Hilley1 and M. R. Strecker Institut fu¨r Geowissenschaften, Universita¨t Potsdam, Potsdam, Germany V. A. Ramos Department de Geologia, Universidad de Buenos Aires, Buenos Aires, Argentina in the central Andes of Argentina where wedge development over time is well constrained. We solve

  18. The evolution and hydrocarbon habitat of the Papuan fold belt, PNG

    SciTech Connect (OSTI)

    Dalton, D.G.; Smith, R.I.; Cawley, S.J. (BP Australia Ltd., Melbourne, Victoria (Australia))

    1990-05-01T23:59:59.000Z

    After over 70 years of hydrocarbon exploration in the Papuan fold belt of PNG (Papua New Guinea) there have been a number of hydrocarbon discoveries over recent years that have confirmed its potential as a significant producing province. The Papuan basin developed during the early Mesozoic as part of the northeast corner of the Australian passive margin. The basin's tertiary evolution and the development of the Papuan fold belt within the Papuan basin has evolved in response to oblique convergence between the northerly moving Australian plate and westerly moving Pacific plate. Restacking of the Mesozoic passive margin sequence within the Papuan Basin was initiated in the early miocene by southward abduction of the Solomon Sea plate and the subsequent collision, in the late Miocene, of the Melanesian Island arc along the northeastern margin of PNG. This later collision provided the driving mechanism for the development of the papuan thrust belt. To date, all the significant hydrocarbon discoveries made within the Papuan fold belt have been located within the frontal zone of the fold belt, which is characterized by relatively simple ramp anticlines and thick-skinned inversion structures. The primary proven reservoir fairway is the Jurassic Toro formation, which is a sequence of stacked submarine bars prograding out across a shallow-marine low-gradient shelf. Geochemical analysis of produced hydrocarbons and samples collected from the many surface seeps found in the fold belt indicate two main families of oil. A model explains the distribution of hydrocarbons discovered to date, which involves Jurassic and Cretaceous source intervals and a complex history of secondary migration and entrapment. The unique technical problems associated with exploration of the Papuan fold belt leave many elements of the proven play systems uncertain, but in so doing, they present many challenges and opportunities for the future.

  19. Minerals and Mining Program (South Dakota)

    Broader source: Energy.gov [DOE]

    The Minerals and Mining Program has the authority to oversee mining activities in the state and issue regulations pertaining to the permitting and environmental impact mitigation of, and...

  20. Understanding microbe-mineral electron exchange | EMSL

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

    insight into how bacteria, such as S. oneidensis (above), exchange electrons with minerals in their surroundings as part of cellular respiration-a series of electron exchanges...

  1. Mineral Test Hole Regulatory Act (Tennessee)

    Broader source: Energy.gov [DOE]

    The Mineral Hole Regulatory Act is applicable to any person (individual, corporation, company, association, joint venture, partnership, receiver, trustee, guardian, executor, administrator,...

  2. Hydrothermal alteration mineral mapping using hyperspectral imagery...

    Open Energy Info (EERE)

    in Dixie Valley, Nevada Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Hydrothermal alteration mineral mapping using hyperspectral...

  3. Electrostatic Potential of Specific Mineral Faces. | EMSL

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

    interactions, and in testing surface complexation theories. Citation: Zarzycki PP, SME Chatman, T Preocanin, and KM Rosso.2011."Electrostatic Potential of Specific Mineral...

  4. The mission of the USGS National Minerals Information Center (formerly

    E-Print Network [OSTI]

    Torgersen, Christian

    The mission of the USGS National Minerals Information Center (formerly the Minerals Information of and demand for minerals and mineral materials essential to the U.S. economy and national security. Examples with the information required to ensure that the Nation has an adequate and dependable supply of minerals and materials

  5. Lipid Peroxidation Induced by Expandable Clay Minerals

    E-Print Network [OSTI]

    Ahmad, Sajjad

    Lipid Peroxidation Induced by Expandable Clay Minerals D A R I A K I B A N O V A , A N T O N I O N and toxicity. Herein, potential hazards of clay particle uptake areaddressed.Thispaperreportsthatthecontentanddistribution of structural Fe influence the ability of expandable clay minerals to induce lipid peroxidation (LP), a major

  6. Clay Minerals and Italy the Nannobacterial

    E-Print Network [OSTI]

    Yang, Zong-Liang

    Clay Minerals and Italy ­ the Nannobacterial Connection R. L. FOLK THE UNIVERSITY OF TEXAS AT AUSTIN This work is dedicated to F. Leo Lynch, a brilliant clay mineralogist who died in 2009. During Leo of nannobacterial precipitation of clay minerals were identified. (Lynch, 1994; Folk, Lynch & Rasbury, 1994). Leo

  7. Institute for Mineral and Energy Resources

    E-Print Network [OSTI]

    Institute for Mineral and Energy Resources #12;IMER VISION IMER's vision is to enable the efficient and sustainable use and development of the world's mineral and energy resources for the benefit of society resources. IMER OBJECTIVES · Advance the science and technology required to enhance the prospectivity

  8. Chapter 15 Mineral Resources and the Environment

    E-Print Network [OSTI]

    Pan, Feifei

    Materials produced from natural gas or crude oil, such as plastics Fertilizers for agriculture, phosphate tons per year. Gold and silver have annual consumption rates of 10,000 tons or less. Worldwide consumption of minerals #12; The fundamental problem associated with the availability of mineral resources

  9. Energy and Mineral Development in Indian Country

    Broader source: Energy.gov [DOE]

    The Rocky Mountain Mineral Law Foundation is hosting the Special Institute on Energy and Mineral Development in Indian Country. This two-day conference will cover laws, policies, and practices regarding natural resources development in Indian Country and how they've evolved in the recent years.

  10. New Mexico Bureau Mines and Mineral

    E-Print Network [OSTI]

    Dunbar, Nelia W.

    Number22 - 1999 New Mexico Bureau of Mines and Mineral Resources a division of Nei~, Mexico Tech forsandblasting five times! ThisIssue Earth Briefs-Better age estimates on some New Mexico volcanic rocks Have You) NewMexico's Most Wanted Minera Is (pageT) Magnification of microscopic miner- als and glass (page 8

  11. Growth of asteroids, planetary embryos and Kuiper belt objects by chondrule accretion

    E-Print Network [OSTI]

    Johansen, Anders; Lacerda, Pedro; Bizzarro, Martin

    2015-01-01T23:59:59.000Z

    Chondrules are millimeter-sized spherules that dominate primitive meteorites (chondrites) originating from the asteroid belt. The incorporation of chondrules into asteroidal bodies must be an important step in planet formation, but the mechanism is not understood. We show that the main growth of asteroids can result from gas-drag-assisted accretion of chondrules. The largest planetesimals of a population with a characteristic radius of 100 km undergo run-away accretion of chondrules within ~3 Myr, forming planetary embryos up to Mars sizes along with smaller asteroids whose size distribution matches that of main belt asteroids. The aerodynamical accretion leads to size-sorting of chondrules consistent with chondrites. Accretion of mm-sized chondrules and ice particles drives the growth of planetesimals beyond the ice line as well, but the growth time increases above the disk life time outside of 25 AU. The contribution of direct planetesimal accretion to the growth of both asteroids and Kuiper belt objects is...

  12. Minerals yearbook: Mineral industries of Europe and central Eurasia. Volume 3. 1992 international review

    SciTech Connect (OSTI)

    Not Available

    1992-01-01T23:59:59.000Z

    Volume III, Minerals Yearbook -- International Review contains the latest available mineral data on more than 175 foreign countries and discusses the importance of minerals to the economies of these nations. Since the 1989 International Review, the volume has been presented as six reports. The report presents the Mineral Industries of Europe and Central Eurasia. The report incorporates location maps, industry structure tables, and an outlook section previously incorporated in the authors' Minerals Perspectives Series quinquennial regional books, which are being discontinued. This section of the Minerals Yearbook reviews the minerals industries of 45 countries: the 12 nations of the European Community (EC); 6 of the 7 nations of the European Free Trade Association (EFTA); Malta; the 11 Eastern European economies in transition (Albania, Bosnia and Hercegovina, Bulgaria, Croatia, Czechoslovakia, Hungary, Macedonia, Poland, Romania, Serbia and Montenegro, and Slovenia); and the countries of Central Eurasia (Armenia, Azerbaijan, Belarus, Estonia, Georgia, Kazakhstan, Kyrgystan, Latvia, Lithuania, Moldova, Russia, Tajikistan, Turkmenistan, Ukraine, and Uzbekistan).

  13. A collaborative research venture between the minerals industry and

    E-Print Network [OSTI]

    Michelson, David G.

    A collaborative research venture between the minerals industry and The University of British Columbia MDRUMINERAL DEPOSIT RESEARCH UNIT To increase the understanding of mineral deposits and highly trained geologists for employment in the minerals industry. Mission Vision MDRU

  14. FORMATION OF SEPIOLITE-PALYGORSKITE AND RELATED MINERALS FROM SOLUTION

    E-Print Network [OSTI]

    Ahmad, Sajjad

    FORMATION OF SEPIOLITE-PALYGORSKITE AND RELATED MINERALS FROM SOLUTION REZAN BIRSOY* Dokuz Eylu's sepiolite-palygorskite precipitates in lacustrine and perimarine environments. Although these minerals can transform from precursor minerals, the most common formation mechanism involves crystallization from

  15. Senior Research Associate Taconite Industry Minerals Research Endowed Chair

    E-Print Network [OSTI]

    Netoff, Theoden

    Senior Research Associate Taconite Industry Minerals Research Endowed Chair Job Requisition 170892 Coleraine Minerals Research Laboratory Natural Resources Research Institute University of Minnesota Duluth (www.nrri.umn.edu) Position Description The Taconite Industry Minerals Research Endowed Chair

  16. Mineral Deposit Research Unit The University of British Columbia

    E-Print Network [OSTI]

    Ollivier-Gooch, Carl

    1 Mineral Deposit Research Unit The University of British Columbia Earth Sciences Building metallogenic constraints on mineralization in poorly understood or exposed portions of Yukon and Alaska. The mineral deposit studies, models, and metallogenic frameworks developed in this project

  17. The Antarctic Circumpolar Productivity Belt Joint Institute for the Study of the Atmosphere and Ocean, University of Washington, Seattle, Washington, USA

    E-Print Network [OSTI]

    Follows, Mick

    The Antarctic Circumpolar Productivity Belt T. Ito Joint Institute for the Study of the Atmosphere] We illustrate the mechanisms controlling the spatial patterns of biological productivity of enhanced export production, figuratively termed as the Antarctic Circumpolar Productivity Belt. As observed

  18. Timing of granite emplacement and cooling in the SongpanGarze^ Fold Belt (eastern Tibetan Plateau) with tectonic implications

    E-Print Network [OSTI]

    Timing of granite emplacement and cooling in the Songpan­Garze^ Fold Belt (eastern Tibetan Plateau Abstract New U­Pb and Rb­Sr geochronology on syn- and post-orogenic granites provide constraints on the timing of major tectonic events in the Songpan­Garze^ fold belt, west Sichuan, China. The Ma Nai granite

  19. Planck intermediate results. XII: Diffuse Galactic components in the Gould Belt System

    E-Print Network [OSTI]

    Ade, P A R; Alves, M I R; Arnaud, M; Ashdown, M; Atrio-Barandela, F; Aumont, J; Baccigalupi, C; Banday, A J; Barreiro, R B; Bartlett, J G; Battaner, E; Bedini, L; Benabed, K; Benoît, A; Bernard, J -P; Bersanelli, M; Bonaldi, A; Bond, J R; Borrill, J; Bouchet, F R; Boulanger, F; Burigana, C; Butler, R C; Chen, X; Chiang, L -Y; Christensen, P R; Clements, D L; Colombi, S; Colombo, L P L; Coulais, A; Cuttaia, F; Davies, R D; Davis, R J; de Bernardis, P; de Zotti, G; Delabrouille, J; Dickinson, C; Diego, J M; Dobler, G; Dole, H; Donzelli, S; Doré, O; Douspis, M; Dupac, X; Enßlin, T A; Finelli, F; Forni, O; Frailis, M; Franceschi, E; Galeotta, S; Ganga, K; Génova-Santos, R T; Ghosh, T; Giard, M; Giardino, G; Giraud-Héraud, Y; González-Nuevo, J; Górski, K M; Gregorio, A; Gruppuso, A; Hansen, F K; Harrison, D; Hernández-Monteagudo, C; Hildebrandt, S R; Hivon, E; Hobson, M; Holmes, W A; Hornstrup, A; Hovest, W; Huffenberger, K M; Jaffe, T R; Jaffe, A H; Juvela, M; Keihänen, E; Keskitalo, R; Kisner, T S; Knoche, J; Kunz, M; Kurki-Suonio, H; Lagache, G; Lähteenmäki, A; Lamarre, J -M; Lasenby, A; Lawrence, C R; Leach, S; Leonardi, R; Lilje, P B; Linden-Vørnle, M; Lubin, P M; Macías-Pérez, J F; Maffei, B; Maino, D; Mandolesi, N; Maris, M; Marshall, D J; Martin, P G; Martínez-González, E; Masi, S; Massardi, M; Matarrese, S; Mazzotta, P; Melchiorri, A; Mennella, A; Mitra, S; Miville-Deschênes, M -A; Moneti, A; Montier, L; Morgante, G; Mortlock, D; Munshi, D; Murphy, J A; Naselsky, P; Nati, F; Natoli, P; Nørgaard-Nielsen, H U; Noviello, F; Novikov, D; Novikov, I; Osborne, S; Oxborrow, C A; Pajot, F; Paladini, R; Paoletti, D; Peel, M; Perotto, L; Perrotta, F; Piacentini, F; Piat, M; Pierpaoli, E; Pietrobon, D; Plaszczynski, S; Pointecouteau, E; Polenta, G; Popa, L; Poutanen, T; Pratt, G W; Prunet, S; Puget, J -L; Rachen, J P; Reach, W T; Rebolo, R; Reinecke, M; Renault, C; Ricciardi, S; Ristorcelli, I; Rocha, G; Rosset, C; Rubiño-Martín, J A; Rusholme, B; Salerno, E; Sandri, M; Savini, G; Scott, D; Spencer, L; Stolyarov, V; Sudiwala, R; Suur-Uski, A -S; Sygnet, J -F; Tauber, J A; Terenzi, L; Tibbs, C T; Toffolatti, L; Tomasi, M; Tristram, M; Valenziano, L; Van Tent, B; Varis, J; Vielva, P; Villa, F; Vittorio, N; Wade, L A; Wandelt, B D; Ysard, N; Yvon, D; Zacchei, A; Zonca, A

    2013-01-01T23:59:59.000Z

    We perform an analysis of the diffuse low-frequency Galactic components in the Southern part of the Gould Belt system ($130^\\circ\\leq l\\leq 230^\\circ$ and $-50^\\circ\\leq b\\leq -10^\\circ$). Strong UV flux coming from the Gould Belt super-association is responsible for bright diffuse foregrounds that we observe from our position inside the system and that can help us improve our knowledge of the Galactic emission. Free-free emission and anomalous microwave emission (AME) are the dominant components at low frequencies ($\

  20. Synthesis of supported carbon nanotubes in mineralized silica...

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

    supported carbon nanotubes in mineralized silica-wood composites. Synthesis of supported carbon nanotubes in mineralized silica-wood composites. Abstract: Multiwall carbon...

  1. ITP Mining: Mining Industry of the Future Mineral Processing...

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

    of the Future Mineral Processing Technology Roadmap ITP Mining: Mining Industry of the Future Mineral Processing Technology Roadmap mptroadmap.pdf More Documents & Publications ITP...

  2. Determining Individual Mineral Contributions To U(VI) Adsorption...

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

    Individual Mineral Contributions To U(VI) Adsorption In A Contaminated Aquifer Sediment: A Fluorescence Spectroscopy Determining Individual Mineral Contributions To U(VI)...

  3. Linked Reactivity at Mineral-Water Interfaces Through Bulk Crystal...

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

    at mineral-water interfaces is of fundamental importance to geochemistry, but for minerals that are natural semiconductors the pursuit of mechanistic understanding is uniquely...

  4. DOE - Office of Legacy Management -- International Minerals and...

    Office of Legacy Management (LM)

    International Minerals and Chemical Corp - Pilot Plant - FL 02 FUSRAP Considered Sites Site: International Minerals and Chemical Corp - Pilot Plant (FL.02) Designated Name: Not...

  5. King Fahd University of Petroleum & Minerals Collage of Electrical Engineering

    E-Print Network [OSTI]

    Al-Ghadhban, Samir

    King Fahd University of Petroleum & Minerals Collage of Electrical Engineering Summer Training King Fahd university of Petroleum and Minerals OMVG Gambia River Basin Development Organization PLCs

  6. Biogeochemical Transformation of Fe Minerals in a Petroleum-Contaminat...

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

    Transformation of Fe Minerals in a Petroleum-Contaminated Aquifer. Biogeochemical Transformation of Fe Minerals in a Petroleum-Contaminated Aquifer. Abstract: Biogeochemical...

  7. Relations Of Ammonium Minerals At Several Hydrothermal Systems...

    Open Energy Info (EERE)

    Minerals At Several Hydrothermal Systems In The Western Us Abstract Ammonium bound to silicate and sulfate minerals has recently been located at several major hydrothermal systems...

  8. LOW TEMPERATURE GEOTHERMAL MINERAL RECOVERY PROGRAM 02/11/2014...

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

    mineral-webinar.pdf More Documents & Publications LOW TEMPERATURE GEOTHERMAL MINERAL RECOVERY PROGRAM Geothermal Play Fairway Analysis Geothermal Play Fairway Analysis...

  9. Climate VISION: PrivateSector Initiatives: Minerals - Industry...

    Office of Scientific and Technical Information (OSTI)

    Industry Associations Industrial Minerals Association - North America The International Minerals Association - North America (IMA-NA) was formed in early 2002 to tap the benefits...

  10. affecting bone mineral: Topics by E-print Network

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

    for Mineral and Energy Physics Websites Summary: Institute for Mineral and Energy Resources Answering Global Resource and Energy Challenges 12;Answering Global Resource and...

  11. alters bone mineral: Topics by E-print Network

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

    for Mineral and Energy Physics Websites Summary: Institute for Mineral and Energy Resources Answering Global Resource and Energy Challenges 12;Answering Global Resource and...

  12. absorptiometric bone mineral: Topics by E-print Network

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

    for Mineral and Energy Physics Websites Summary: Institute for Mineral and Energy Resources Answering Global Resource and Energy Challenges 12;Answering Global Resource and...

  13. avoiding mineral pretreatment: Topics by E-print Network

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

    for Mineral and Energy Physics Websites Summary: Institute for Mineral and Energy Resources Answering Global Resource and Energy Challenges 12;Answering Global Resource and...

  14. affecting born mineral: Topics by E-print Network

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

    for Mineral and Energy Physics Websites Summary: Institute for Mineral and Energy Resources Answering Global Resource and Energy Challenges 12;Answering Global Resource and...

  15. atrazine mineralization capacity: Topics by E-print Network

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

    for Mineral and Energy Physics Websites Summary: Institute for Mineral and Energy Resources Answering Global Resource and Energy Challenges 12;Answering Global Resource and...

  16. african mineral dust: Topics by E-print Network

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

    Laurent 19 Does the size distribution of mineral dust aerosols depend on the wind speed at emission? CERN Preprints Summary: The size distribution of mineral dust aerosols...

  17. artery calcium mineral: Topics by E-print Network

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

    between diatom aggregates, minerals, particulate organic carbon, and dissolved organic October 2008. 1 Correlations of particulate organic carbon (POC) and mineral fluxes into...

  18. Biotic and abiotic pathways of phosphorus cycling in minerals...

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

    and abiotic pathways of phosphorus cycling in minerals and sediments: insights from oxygen isotopes in phosphate. Biotic and abiotic pathways of phosphorus cycling in minerals...

  19. Process for the physical segregation of minerals

    DOE Patents [OSTI]

    Yingling, Jon C.; Ganguli, Rajive

    2004-01-06T23:59:59.000Z

    With highly heterogeneous groups or streams of minerals, physical segregation using online quality measurements is an economically important first stage of the mineral beneficiation process. Segregation enables high quality fractions of the stream to bypass processing, such as cleaning operations, thereby reducing the associated costs and avoiding the yield losses inherent in any downstream separation process. The present invention includes various methods for reliably segregating a mineral stream into at least one fraction meeting desired quality specifications while at the same time maximizing yield of that fraction.

  20. Precipitation of relativistic electrons of the Van Allen belts into the proton aurora

    SciTech Connect (OSTI)

    Jordanova, Vania K [Los Alamos National Laboratory; Miyoshi, Y [NAGOYA UNIV; Sakaguchi, K [NAGOYA UNIV; Shiokawa, K [NAGOYA UNIV; Evans, D S [SEC/NOAA; Albert, Jay [AFRL; Connors, M [UNIV OF ATHABASCA

    2008-01-01T23:59:59.000Z

    The Van Allen electron belts consist of two regions encircling the earth in which relativistic electrons are trapped in the earth's magnetic field. Populations of relativistic electrons in the Van Allen belts vary greatly with geomagnetic disturbance and they are a major source of damage to space vehicles. In order to know when and by how much these populations of relativistic electrons increase, it is important to elucidate not only the cause of acceleration of relativistic electrons but also the cause of their loss from the Van Allen belts. Here we show the first evidence that left-hand polarized electromagnetic ion cyclotron (EMIC) plasma waves can cause the loss of relativistic electrons into the atmosphere, on the basis of results of an excellent set of ground and satellite observations showing coincident precipitation of ions with energies of tens of keV and of relativistic electrons into an isolated proton aurora. The proton aurora was produced by precipitation of ions with energies of tens of keV due to EMIC waves near the plasma pause, which is a manifestation of wave-particle interactions. These observations clarify that ions with energies of tens of keV affect the evolution of relativistic electrons in the Van Allen belts via parasitic resonance with EMIC waves, an effect that was first theoretically predicted in the early 1970's.

  1. Modeling the deep penetration of outer belt electrons during the ``Halloween'' magnetic storm in 2003

    E-Print Network [OSTI]

    Li, Xinlin

    of this model is that the inputs are solely from measurements of current solar wind and energetic electrons. During the geomagnetic storm of October/November 2003, the intensity peak of the outer radiation belt model is developed, using the measurements of relativistic electrons at geosynchronous orbit

  2. Rayleigh-Taylor instability, lithospheric dynamics, surface topography at convergent mountain belts, and gravity anomalies

    E-Print Network [OSTI]

    Mojzsis, Stephen J.

    Rayleigh-Taylor instability, lithospheric dynamics, surface topography at convergent mountain belts; accepted 25 April 2013; published 24 May 2013. [1] Surface topography and associated gravity anomalies of surface topography, with negative (positive) free-air anomalies over regions of descent (ascent

  3. GEOSPATIAL DECISION SUPPORT FOR SEED COMPANIES IN THE CORN BELT Marcus E. Tooze1

    E-Print Network [OSTI]

    Reichenbach, Stephen E.

    GEOSPATIAL DECISION SUPPORT FOR SEED COMPANIES IN THE CORN BELT Marcus E. Tooze1 , S. Hatten2 , W in the seed industry, new applications emerge for mapping, analysis, and interpretation of cultivar. In addition, a geospatial framework was developed to identify the soil landscapes that had the best soil

  4. Incorporating spectral characteristics of Pc5 waves into three-dimensional radiation belt

    E-Print Network [OSTI]

    Elkington, Scot R.

    . This is the first analysis in three dimensions utilizing model ULF wave electric and magnetic fields on the guiding losses at MeV energies. This inner electron belt resides mainly below 2 RE geocen- tric distance center trajectories of relativistic electrons. A model is developed, describing magnetic and electric

  5. Energetic outer radiation-belt electron precipitation during recurrent solar activity

    E-Print Network [OSTI]

    Otago, University of

    on the atmosphere [Seppälä et al., 2004]. During some intense solar storms solar protons in the energy range 1Energetic outer radiation-belt electron precipitation during recurrent solar activity Mark A and Physical Sciences, University of Newcastle, Callaghan, Australia. Russell S. Grew School of Mathematical

  6. High-temperature deformation in the Neoproterozoic transpressional Ribeira belt, southeast Brazil

    E-Print Network [OSTI]

    Bascou, Jérôme

    High-temperature deformation in the Neoproterozoic transpressional Ribeira belt, southeast Brazil^ncias da Universidade de Sa~o Paulo, Rua do Lago 562, Cep: 05508-080, Sa~o Paulo, SP, Brazil b Laboratoire Geologia, Universidade Federal de Ouro Preto, 35400-000, Ouro Pre^to, MG, Brazil Received 5 April 2001

  7. Analysis of Heavy Oil Recovery by Thermal EOR in a Meander Belt: From Geological

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Analysis of Heavy Oil Recovery by Thermal EOR in a Meander Belt: From Geological to Reservoir Energies nouvelles2 INTRODUCTION SAGD will become increasingly important for heavy oil recovery because assessment, well placement and production performance prediction. One of the most famous heavy oil provinces

  8. Tuesday, 31 July, 2012 Rapid radiation belt losses occurring during high speed solar wind stream1

    E-Print Network [OSTI]

    Otago, University of

    Tuesday, 31 July, 2012 1 Rapid radiation belt losses occurring during high speed solar wind stream1 Raita11 Sodankylä Geophysical Observatory, University of Oulu, Sodankylä, Finland12 Abstract. Recent geomagnetic disturbances triggered by the arrival of a Solar14 Wind Stream Interface (SWSI). In the current

  9. Power Line Damage, Electrical Outages Reduced in the ''Sleet Belt'': NICE3 Steel Project Fact Sheet

    SciTech Connect (OSTI)

    NONE

    2000-04-25T23:59:59.000Z

    The AR Windamper System was developed through a grant from the Inventions and Innovation Program, to protect power transmission lines in sleet belt states and provinces by eliminating the ''galloping'' phenomenon. Wind damping products minimize power outages and reduce repair costs to transmission lines.

  10. A VR-BASED TRAINING PROGRAM FOR CONVEYOR BELT SAFETY SUBMITTED: June 2007

    E-Print Network [OSTI]

    which has forced its adoption of large and fast moving equipment for transporting bulk material. Belt as their economy of operation, reliability, versatility, and practically unlimited range of capabilities. With all of these factors comes an inherent danger. From 1995 to 2007 there have been a total of 534 equipment related fatal

  11. Seismological evidence for crustal-scale thrusting in the Zagros mountain belt (Iran)

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Seismological evidence for crustal-scale thrusting in the Zagros mountain belt (Iran) Anne Paul 1 Grenoble Cedex, France 2 International Institute of Earthquake Engineering and Seismology, Tehran, Iran 3 that the crust of Zagros underthrusts the crust of central Iran along the MZT considered as a crustal

  12. Seismic imaging of the lithospheric structure of the Zagros mountain belt (Iran)

    E-Print Network [OSTI]

    Hatzfeld, Denis

    Seismic imaging of the lithospheric structure of the Zagros mountain belt (Iran) ANNE PAUL1*, DENIS International Institute of Earthquake Engineering and Seismology, Tehran, Iran 3 Institute for Advanced Studies in Basic Sciences (IASBS), PO Box 45195-1159, Zanjan, Iran *Corresponding author (e-mail: Anne

  13. Holocene vegetation and fire dynamics in the supra-mediterranean belt of the Nebrodi Mountains

    E-Print Network [OSTI]

    Bern, Universität

    and the Mediterranean region. Copyright # 2012 John Wiley & Sons, Ltd. KEYWORDS: climate change; human impact; Ilex TINNER1 1 Institute of Plant Sciences and Oeschger Centre for Climate Change Research, University of BernHolocene vegetation and fire dynamics in the supra-mediterranean belt of the Nebrodi Mountains

  14. Method for determining molten metal pool level in twin-belt continuous casting machines

    DOE Patents [OSTI]

    Kaiser, Timothy D. (Colchester, VT); Daniel, Sabah S. (Pittsburgh, PA); Dykes, Charles D. (Milton, VT)

    1989-03-21T23:59:59.000Z

    A method for determining level of molten metal in the input of a continuous metal casting machine having at least one endless, flexible, revolving casting belt with a surface which engages the molten metal to be cast and a reverse, cooled surface along which is directed high velocity liquid coolant includes the steps of predetermining the desired range of positions of the molten metal pool and positioning at least seven heat-sensing transducers in bearing contact with the moving reverse belt surface and spaced in upstream-downstream relationship relative to belt travel spanning the desired pool levels. A predetermined temperature threshold is set, somewhat above coolant temperature and the output signals of the transducer sensors are scanned regarding their output signals indicative of temperatures of the moving reverse belt surface. Position of the molten pool is determined using temperature interpolation between any successive pair of upstream-downstream spaced sensors, which follows confirmation that two succeeding downstream sensors are at temperature levels exceeding threshold temperature. The method accordingly provides high resolution for determining pool position, and verifies the determined position by utilizing full-strength signals from two succeeding downstream sensors. In addition, dual sensors are used at each position spanning the desired range of molten metal pool levels to provide redundancy, wherein only the higher temperature of each pair of sensors at a station is utilized.

  15. The Role of Climate in the Deformation of a Fold and Thrust Belt

    E-Print Network [OSTI]

    Steen, Sean Kristian

    2012-02-14T23:59:59.000Z

    and uplifted in large folds. In order to test this and related ideas in a natural example, we have compared modeled rainfall to measured thrust sheet displacement, geometry, and internal deformation in the Appalachian fold and thrust belt. We use mean annual...

  16. Sustainable growth and valuation of mineral reserves

    E-Print Network [OSTI]

    Adelman, Morris Albert

    1994-01-01T23:59:59.000Z

    The annual change in the value of an in-ground mineral is equal to the increase or decrease of inventories ("reserves"), multiplied by the market value of a reserve unit. The limited shrinking resource base does not exist. ...

  17. Minerals on School and Public Lands

    Broader source: Energy.gov [DOE]

    The Commissioner of School and Public Lands is authorized to lease the mineral interests of such lands for development. Section 5-7 of the SD Codified Laws describes provisions for the leasing of...

  18. Mineral Leases by Political Subdivisions (Texas)

    Broader source: Energy.gov [DOE]

    This legislation authorizes local political subdivisions to lease lands they own for the development of mineral interests, including coal and lignite. A public hearing process is required prior to...

  19. Oil, Gas, and Metallic Minerals (Iowa)

    Broader source: Energy.gov [DOE]

    Operators of oil, gas, and metallic mineral exploration and production operations are required to obtain a drilling permit from the Iowa Department of Natural Resources and file specific forms with...

  20. An Outer Planet Beyond Pluto and Origin of the Trans-Neptunian Belt Architecture

    E-Print Network [OSTI]

    Patryk Sofia Lykawka; Tadashi Mukai

    2007-12-13T23:59:59.000Z

    Trans-Neptunian objects (TNOs) are remnants of a collisionally and dynamically evolved planetesimal disk in the outer solar system. This complex structure, known as the trans-Neptunian belt (or Edgeworth-Kuiper belt), can reveal important clues about disk properties, planet formation, and other evolutionary processes. In contrast to the predictions of accretion theory, TNOs exhibit surprisingly large eccentricities, e, and inclinations, i, which can be grouped into distinct dynamical classes. Several models have addressed the origin and orbital evolution of TNOs, but none have reproduced detailed observations, e.g., all dynamical classes and peculiar objects, or provided insightful predictions. Based on extensive simulations of planetesimal disks with the presence of the four giant planets and massive planetesimals, we propose that the orbital history of an outer planet with tenths of Earth's mass can explain the trans-Neptunian belt orbital structure. This massive body was likely scattered by one of the giant planets, which then stirred the primordial planetesimal disk to the levels observed at 40-50 AU and truncated it at about 48 AU before planet migration. The outer planet later acquired an inclined stable orbit (>100 AU; 20-40 deg) because of a resonant interaction with Neptune (an r:1 or r:2 resonance possibly coupled with the Kozai mechanism), guaranteeing the stability of the trans-Neptunian belt. Our model consistently reproduces the main features of each dynamical class with unprecedented detail; it also satisfies other constraints such as the current small total mass of the trans-Neptunian belt and Neptune's current orbit at 30.1 AU. We also provide observationally testable predictions.

  1. Magnetic minerals produced by magnetotactic bacteria Balzs Arat1

    E-Print Network [OSTI]

    Dunin-Borkowski, Rafal E.

    Magnetic minerals produced by magnetotactic bacteria Balázs Arató1 , Mihály Pósfai1 and Rafal E-controlled mineralization Abstract. Magnetotactic bacteria produce intracellular magnetic minerals that have distinct for studying the biological membrane around the mineral grains. Our goals were to deduce the possible growth

  2. 2011 Minerals Yearbook U.S. Department of the Interior

    E-Print Network [OSTI]

    2011 Minerals Yearbook U.S. Department of the Interior U.S. Geological Survey BORON [ADVANCE production table was prepared by Lisa D. Miller, international data coordinator. U.S. consumption of minerals of boron minerals (table 6). World production of boron minerals increased in 2011 to an estimated 4

  3. 2005 Minerals Yearbook ZirconiuM and HafniuM

    E-Print Network [OSTI]

    2005 Minerals Yearbook ZirconiuM and HafniuM U.S. Department of the Interior U.S. Geological Survey of the mining and processing of heavy-mineral sands containing the titanium minerals ilmenite and rutile.). duPont produced zircon from its heavy-mineral sands operation near Starke, fL. iluka produced zircon

  4. 2010 Minerals Yearbook U.S. Department of the Interior

    E-Print Network [OSTI]

    2010 Minerals Yearbook U.S. Department of the Interior U.S. Geological Survey BORON [ADVANCE of minerals and compounds reported in boron oxide continued to increase in 2010 but quantities are withheld's leading producers of boron minerals (table 6). World production of boron minerals increased in 2010

  5. Preventing oxidation of iron sulfide minerals by polyethylene polyamines

    E-Print Network [OSTI]

    Belzile, Nelson

    processes of sulfide minerals still remains an important issue for both mineral extraction and environmentalPreventing oxidation of iron sulfide minerals by polyethylene polyamines Yu-Wei Chen a,*, Yuerong on the passivation of pyrite and pyrrhotite minerals. Polyethylene polyamines, such as triethylenetetramine (TETA

  6. West Virginia University College of Engineering and Mineral Resources

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    , and extracted minerals. Mine Environment - Designing and operating ventilation systems and controlling methane

  7. One Weird Trick to Stop Selfish Miners: Fresh Bitcoins, A Solution for the Honest Miner.

    E-Print Network [OSTI]

    One Weird Trick to Stop Selfish Miners: Fresh Bitcoins, A Solution for the Honest Miner. Ethan Heilman Boston University heilman@bu.edu Abstract--A recent result in Bitcoin is the selfish mining incentive-compatible and harmful to Bitcoin. In this paper we introduce a new defense against selfish mining

  8. Factors determining the adoption or non-adoption of precision agriculture by producers across the cotton belt

    E-Print Network [OSTI]

    Lavergne, Christopher Bernard

    2006-04-12T23:59:59.000Z

    The purpose of this study was to determine factors influencing cotton producer adoption of Precision Agriculture in the cotton belt according to members of the American Cotton Producers of the National Cotton Council. The National Research Council...

  9. Factors determining the adoption or non-adoption of precision agriculture by producers across the cotton belt 

    E-Print Network [OSTI]

    Lavergne, Christopher Bernard

    2006-04-12T23:59:59.000Z

    The purpose of this study was to determine factors influencing cotton producer adoption of Precision Agriculture in the cotton belt according to members of the American Cotton Producers of the National Cotton Council. The ...

  10. Mechanical characteristics of folds in Upper Cretaceous strata in the Disturbed Belt of northwestern Montana

    E-Print Network [OSTI]

    Gilbert, Pat Kader

    1974-01-01T23:59:59.000Z

    controlled cross section through a wave trai. n of these folds, The citations on these pages follow the style of the U. S. Geological Survey Bulletin. other field observations, laboratory analysis of collected samples, and theoretical considerations...MECHANICAL CHARACTERISTICS OF FOLDS IN UPPER CRETACEOUS STRATA IN THE DISTURBED BELT OF NORTHWESTERN MONTANA A Thesis by PAT KADER GILBERT Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirements...

  11. A density-temperature description of the outer electron radiation belt during geomagnetic storms

    SciTech Connect (OSTI)

    Borovsky, Joseph E [Los Alamos National Laboratory; Cayton, Thomas E [Los Alamos National Laboratory; Denton, Michael H [LANCASTER UNIV

    2009-01-01T23:59:59.000Z

    Electron flux measurements from 7 satellites in geosynchronous orbit from 1990-2007 are fit with relativistic bi-Maxwellians, yielding a number density n and temperature T description of the outer electron radiation belt. For 54.5 spacecraft years of measurements the median value ofn is 3.7x10-4 cm-3 and the median value ofT is 142 keY. General statistical properties of n, T, and the 1.1-1.5 MeV flux J are investigated, including local-time and solar-cycle dependencies. Using superposed-epoch analysis triggered on storm onset, the evolution of the outer electron radiation belt through high-speed-steam-driven storms is investigated. The number density decay during the calm before the storm is seen, relativistic-electron dropouts and recoveries from dropout are investigated, and the heating of the outer electron radiation belt during storms is examined. Using four different triggers (SSCs, southward-IMF CME sheaths, southward-IMF magnetic clouds, and minimum Dst), CME-driven storms are analyzed with superposed-epoch techniques. For CME-driven storms an absence of a density decay prior to storm onset is found, the compression of the outer electron radiation belt at time of SSC is analyzed, the number-density increase and temperature decrease during storm main phase is seen, and the increase in density and temperature during storm recovery phase is observed. Differences are found between the density-temperature and the flux descriptions, with more information for analysis being available in the density-temperature description.

  12. Examining the specific entropy (density of adiabatic invariants) of the outer electron radiation belt

    SciTech Connect (OSTI)

    Borovsky, Joseph E [Los Alamos National Laboratory; Denton, Michael H [LANCASTER UNIV

    2008-01-01T23:59:59.000Z

    Using temperature and number-density measurements of the energetic-electron population from multiple spacecraft in geosynchronous orbit, the specific entropy S = T/n{sup 2/3} of the outer electron radiation belt is calculated. Then 955,527 half-hour-long data intervals are statistically analyzed. Local-time and solar-cycle variations in S are examined. The median value of the specific entropy (2.8 x 10{sup 7} eVcm{sup 2}) is much larger than the specific entropy of other particle populations in and around the magnetosphere. The evolution of the specific entropy through high-speed-stream-driven geomagnetic storms and through magnetic-cloud-driven geomagnetic storms is studied using superposed-epoch analysis. For high-speed-stream-driven storms, systematic variations in the entropy associated with electron loss and gain and with radiation-belt heating are observed in the various storm phases. For magnetic-cloud-driven storms, multiple trigger choices for the data superpositions reveal the effects of interplanetary shock arrival, sheath driving, cloud driving, and recovery phase. The specific entropy S = T/n{sup 2/3} is algebraically expressed in terms of the first and second adiabatic invariants of the electrons: this allows a relativistic expression for S in terms of T and n to be derived. For the outer electron radiation belt at geosynchronous orbit, the relativistic corrections to the specific entropy expression are -15%.

  13. A Correlation Between Inclination and Color in the Classical Kuiper Belt

    E-Print Network [OSTI]

    Chadwick A. Trujillo; Michael E. Brown

    2002-01-04T23:59:59.000Z

    We have measured broadband optical BVR photometry of 24 Classical and Scattered Kuiper belt objects (KBOs), approximately doubling the published sample of colors for these classes of objects. We find a statistically significant correlation between object color and inclination in the Classical Kuiper belt using our data. The color and inclination correlation increases in significance after the inclusion of additional data points culled from all published works. Apparently, this color and inclination correlation has not been more widely reported because the Plutinos show no such correlation, and thus have been a major contaminant in previous samples. The color and inclination correlation excludes simple origins of color diversity, such as the presence of a coloring agent without regard to dynamical effects. Unfortunately, our current knowledge of the Kuiper belt precludes us from understanding whether the color and inclination trend is due to environmental factors, such as collisional resurfacing, or primordial population effects. A perihelion and color correlation is also evident, although this appears to be a spurious correlation induced by sampling bias, as perihelion and inclination are correlated in the observed sample of KBOs.

  14. A Wide-Field CCD Survey for Centaurs and Kuiper Belt Objects

    E-Print Network [OSTI]

    S. Sheppard; D. Jewitt; C. Trujillo; M. Brown; M. Ashley

    2000-08-29T23:59:59.000Z

    A modified Baker-Nunn camera was used to conduct a wide-field survey of 1428 square degrees of sky near the ecliptic in search of bright Kuiper Belt objects and Centaurs. This area is an order of magnitude larger than any previously published CCD survey for Centaurs and Kuiper Belt Objects. No new objects brighter than red magnitude m=18.8 and moving at a rate 1"/hr to 20"/hr were discovered, although one previously discovered Centaur 1997 CU26 Chariklo was serendipitously detected. The parameters of the survey were characterized using both visual and automated techniques. From this survey the empirical projected surface density of Centaurs was found to be SigmaCentaur(m 1 km) assuming a geometric albedo of 0.04. About 100 Centaurs are larger than 50 km in radius, of which only 4 are presently known. The current total mass of the Centaurs is 10^-4 Earth Masses. No dust clouds were detected resulting from Kuiper Belt object collisions, placing a 3sigma upper limit <600 collisionally produced clouds of m<18.8 per year.

  15. THE COLOR DIFFERENCES OF KUIPER BELT OBJECTS IN RESONANCE WITH NEPTUNE

    SciTech Connect (OSTI)

    Sheppard, Scott S., E-mail: sheppard@dtm.ciw.edu [Department of Terrestrial Magnetism, Carnegie Institution of Washington, 5241 Broad Branch Road NW, Washington, DC 20015 (United States)

    2012-12-01T23:59:59.000Z

    The optical colors of 58 objects in mean motion resonance with Neptune were obtained. The various Neptune resonant populations were found to have significantly different surface color distributions. The 5:3 and 7:4 resonances have semimajor axes near the middle of the main Kuiper Belt and both are dominated by ultra-red material (spectral gradient: S {approx}> 25). The 5:3 and 7:4 resonances have statistically the same color distribution as the low-inclination 'cold' classical belt. The inner 4:3 and distant 5:2 resonances have objects with mostly moderately red colors (S {approx} 15), similar to the scattered and detached disk populations. The 2:1 resonance, which is near the outer edge of the main Kuiper Belt, has a large range of colors with similar numbers of moderately red and ultra-red objects at all inclinations. The 2:1 resonance was also found to have a very rare neutral colored object showing that the 2:1 resonance is really a mix of all object types. The inner 3:2 resonance, like the outer 2:1, has a large range of objects from neutral to ultra-red. The Neptune Trojans (1:1 resonance) are only slightly red (S {approx} 9), similar to the Jupiter Trojans. The inner 5:4 resonance only has four objects with measured colors but shows equal numbers of ultra-red and moderately red objects. The 9:5, 12:5, 7:3, 3:1, and 11:3 resonances do not have reliable color distribution statistics since few objects have been observed in these resonances, though it appears noteworthy that all three of the measured 3:1 objects have only moderately red colors, similar to the 4:3 and 5:2 resonances. The different color distributions of objects in mean motion resonance with Neptune are likely a result from the disruption of the primordial Kuiper Belt from the scattering and migration of the giant planets. The few low-inclination objects known in the outer 2:1 and 5:2 resonances are mostly only moderately red. This suggests if the 2:1 and 5:2 have a cold low-inclination component, the objects likely had a significantly different origin than the ultra-red-dominated cold components of the cold classical belt and 5:3 and 7:4 resonances.

  16. Geochemical and Petrological Investigations into Mantle Minerals from Experiments and Natural Samples

    E-Print Network [OSTI]

    Macris, Catherine Amy

    2012-01-01T23:59:59.000Z

    A. Schauble (2010) Inter-mineral Iron Isotope Fractionationand E. Tonui (2008) Inter-mineral Iron Isotope Fractionation+ (aq) with carbonate minerals. Geochimica et Cosmochimica

  17. Mineral transformation and biomass accumulation associated with uranium bioremediation at Rifle, Colorado

    E-Print Network [OSTI]

    Li, L.

    2009-01-01T23:59:59.000Z

    iron(III) oxyhydroxides: effects of mineral solubility andMineral Transformation and Biomass Accumulation Associatedthe accumulation of new mineral phases and biomass. Word

  18. Bone mineral density and fractures in older men with chronic obstructive pulmonary disease or asthma

    E-Print Network [OSTI]

    Dam, T.-T.; Harrison, S.; Fink, H. A.; Ramsdell, J.; Barrett-Connor, E.

    2010-01-01T23:59:59.000Z

    x ORIGINAL ARTICLE Bone mineral density and fractures inwas associated with lower bone mineral density (BMD) at theKeywords Bone loss . Bone mineral density . Elderly .

  19. Mineral balances, including in drinking water, estimated for Merced County dairy herds

    E-Print Network [OSTI]

    Castillo, Alejandro R Dr.; Santos, Jose Eduardo P.; Tabone, Tom J.

    2007-01-01T23:59:59.000Z

    et al. (1994). TABLE 3. Estimates of daily mineral intake,drinking-water mineral contributionand net mineral excretion in lactating cows on Merced County

  20. Earth Minerals Did you read chapter 29

    E-Print Network [OSTI]

    Hart, Gus

    1 Chapter 29 Earth Minerals Did you read chapter 29 before coming to class? A. Yes B. No Lets play that begins in Hawaii Other "Hot Spots" around the world The interior structure of Earth has been determined outer core #12;2 What is different on earth (as opposed to other planets)? Continents Why does

  1. Clay mineral reactions in clastic diagenesis

    SciTech Connect (OSTI)

    Hower, J.

    1983-03-01T23:59:59.000Z

    Studies of clastic sediments have documented the formation and transformation of clay mineral assemblages during burial diagensis. The transformation of smectite to illite in shale by its reaction with the decomposition products of detrital K-feldspar and mica results in the production of new pore water at depth. The overall reaction mobilizes all the major chemical components in the shale, most of which are consumed in the formation of the diagenetic assemblage illite/smectite + chlorite + quartz. However, part of all the components is undoubtedly transported from the shale to sandstone units and is involved in cementation, replacement, and diagenetic clay mineral formation in these reservoir rocks. In contrast to burial diagenetic reactions in shale, where the sequence is monotonic and reasonably predictable, diagenetic reactions in sandstone are frequently variable. This variability is probably attributable to the fact that sandstones are open systems in which the reactions that proceed are controlled in part by the influx of new pore water, the chemistry of which is determined by an outside source. The useful understanding role of clay minerals in hydrocarbon exploration will follow from a determination of the system shale/sandstone/organic material. We need to tie in the nature and timing of shale mineral reactions and their control on the fluid and mass transfer from shale to sandstone.

  2. USED MINERAL-BASED CRANKCASE OIL

    E-Print Network [OSTI]

    Used Mineral-Based Crankcase

    based crankcase oil vary depending on the brand and type of oil, whether gasoline or diesel fuel was used, the mechanical condition of the engine that the oil came from, and the amount of use between oil changes. Used oil is not naturally found in the environment. What happens to used mineral-based crankcase oil when it enters the environment? q Used mineral-based crankcase oil enters the air through the exhaust system during engine use. q It may enter water or soil when disposed of improperly. q The hydrocarbon components of the oil generally stick to the soil surface. q Some hydrocarbons evaporate into the air very quickly, and others evaporate more slowly. q Hydrocarbon components of the oil that enter surface water bind to small particles in the water and eventually settle to the bottom. q Hydrocarbons from used mineral-based crankcase oil may build up in shellfish or other organisms. q Some metals in used mineral-based crankcase oil dissolve in water and move through the s

  3. Iron oxyhydroxide mineralization on microbial extracellular polysaccharides

    SciTech Connect (OSTI)

    Chan, Clara S.; Fakra, Sirine C.; Edwards, David C.; Emerson, David; Banfield, Jillian F.

    2010-06-22T23:59:59.000Z

    Iron biominerals can form in neutral pH microaerophilic environments where microbes both catalyze iron oxidation and create polymers that localize mineral precipitation. In order to classify the microbial polymers that influence FeOOH mineralogy, we studied the organic and mineral components of biominerals using scanning transmission X-ray microscopy (STXM), micro X-ray fluorescence ({mu}XRF) microscopy, and high-resolution transmission electron microscopy (HRTEM). We focused on iron microbial mat samples from a creek and abandoned mine; these samples are dominated by iron oxyhydroxide-coated structures with sheath, stalk, and filament morphologies. In addition, we characterized the mineralized products of an iron-oxidizing, stalk-forming bacterial culture isolated from the mine. In both natural and cultured samples, microbial polymers were found to be acidic polysaccharides with carboxyl functional groups, strongly spatially correlated with iron oxyhydroxide distribution patterns. Organic fibrils collect FeOOH and control its recrystallization, in some cases resulting in oriented crystals with high aspect ratios. The impact of polymers is particularly pronounced as the materials age. Synthesis experiments designed to mimic the biomineralization processes show that the polysaccharide carboxyl groups bind dissolved iron strongly but release it as mineralization proceeds. Our results suggest that carboxyl groups of acidic polysaccharides are produced by different microorganisms to create a wide range of iron oxyhydroxide biomineral structures. The intimate and potentially long-term association controls the crystal growth, phase, and reactivity of iron oxyhydroxide nanoparticles in natural systems.

  4. 2006 Minerals Yearbook ZIRCONIUM AND HAFNIUM

    E-Print Network [OSTI]

    .S. Geological Survey from a voluntary survey of domestic operations. Of the 44 operations surveyed, 31 did concentrates are developed by a second voluntary survey of domestic mining operations. Of the two domestic2006 Minerals Yearbook ZIRCONIUM AND HAFNIUM U.S. Department of the Interior U.S. Geological Survey

  5. Department of Mining & Minerals Engineering Graduate Program of Study

    E-Print Network [OSTI]

    Buehrer, R. Michael

    Department of Mining & Minerals Engineering Graduate Program of Study Name: ID#: Advisor: Graduate Members, with not less than three from the Department of Mining and Minerals Engineering and not less than

  6. african gold miners: Topics by E-print Network

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

    the outline of the country's geology and its mineral deposits. Mali, its geology and mineral resources Country summary Mali, located in West Africa, has a land area of 24 000...

  7. V-215: NetworkMiner Directory Traversal and Insecure Library...

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

    Two vulnerabilities have been reported in NetworkMiner, which can be exploited by malicious people to compromise a user's system. PLATFORM: NetworkMiner 1.x ABSTRACT: The...

  8. aluminosilicate clay minerals: Topics by E-print Network

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

    used mineral-based crankcase oil may build up in shellfish or other organisms. q Some metals in used mineral-based crankcase oil dissolve in water and move through the s Used...

  9. anaerobic toluene mineralization: Topics by E-print Network

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

    and found in nature as the mineral tincal. Boric acid, also known as orthoboric acid boric acid. The most common minerals of commercial importance in the United States were...

  10. accompanying mineral crystal: Topics by E-print Network

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

    Foreign investment: Coal 45 1 Oil 4.7 6 Industrial minerals: Cement 42 1 Fluorspar 55 1 Rare earths 85 1 Metals: Aluminum 312 Mineral-filled polypropylene: Improvement of scratch...

  11. apatite structured minerals: Topics by E-print Network

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

    Foreign investment: Coal 45 1 Oil 4.7 6 Industrial minerals: Cement 42 1 Fluorspar 55 1 Rare earths 85 1 Metals: Aluminum 166 Mineral-filled polypropylene: Improvement of scratch...

  12. azoto mineral durante: Topics by E-print Network

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

    Foreign investment: Coal 45 1 Oil 4.7 6 Industrial minerals: Cement 42 1 Fluorspar 55 1 Rare earths 85 1 Metals: Aluminum 109 Mineral-filled polypropylene: Improvement of scratch...

  13. articular cartilage mineralization: Topics by E-print Network

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

    Foreign investment: Coal 45 1 Oil 4.7 6 Industrial minerals: Cement 42 1 Fluorspar 55 1 Rare earths 85 1 Metals: Aluminum 304 Mineral-filled polypropylene: Improvement of scratch...

  14. advanced mineral calciner: Topics by E-print Network

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

    Foreign investment: Coal 45 1 Oil 4.7 6 Industrial minerals: Cement 42 1 Fluorspar 55 1 Rare earths 85 1 Metals: Aluminum 174 Mineral-filled polypropylene: Improvement of scratch...

  15. anionic alkali mineral: Topics by E-print Network

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

    Foreign investment: Coal 45 1 Oil 4.7 6 Industrial minerals: Cement 42 1 Fluorspar 55 1 Rare earths 85 1 Metals: Aluminum 444 Mineral-filled polypropylene: Improvement of scratch...

  16. actinide pyrochlore minerals: Topics by E-print Network

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

    Foreign investment: Coal 45 1 Oil 4.7 6 Industrial minerals: Cement 42 1 Fluorspar 55 1 Rare earths 85 1 Metals: Aluminum 192 Mineral-filled polypropylene: Improvement of scratch...

  17. alkali mineral complex: Topics by E-print Network

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

    Foreign investment: Coal 45 1 Oil 4.7 6 Industrial minerals: Cement 42 1 Fluorspar 55 1 Rare earths 85 1 Metals: Aluminum 303 Mineral-filled polypropylene: Improvement of scratch...

  18. activity bone mineral: Topics by E-print Network

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

    Foreign investment: Coal 45 1 Oil 4.7 6 Industrial minerals: Cement 42 1 Fluorspar 55 1 Rare earths 85 1 Metals: Aluminum 325 Mineral-filled polypropylene: Improvement of scratch...

  19. amaro mineral sand: Topics by E-print Network

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

    Foreign investment: Coal 45 1 Oil 4.7 6 Industrial minerals: Cement 42 1 Fluorspar 55 1 Rare earths 85 1 Metals: Aluminum 452 Mineral-filled polypropylene: Improvement of scratch...

  20. aporte del mineral: Topics by E-print Network

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

    Foreign investment: Coal 45 1 Oil 4.7 6 Industrial minerals: Cement 42 1 Fluorspar 55 1 Rare earths 85 1 Metals: Aluminum 118 Mineral-filled polypropylene: Improvement of scratch...

  1. artisanal gold miners: Topics by E-print Network

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

    Foreign investment: Coal 45 1 Oil 4.7 6 Industrial minerals: Cement 42 1 Fluorspar 55 1 Rare earths 85 1 Metals: Aluminum 370 Mineral-filled polypropylene: Improvement of scratch...

  2. agua por mineral: Topics by E-print Network

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

    Foreign investment: Coal 45 1 Oil 4.7 6 Industrial minerals: Cement 42 1 Fluorspar 55 1 Rare earths 85 1 Metals: Aluminum 171 Mineral-filled polypropylene: Improvement of scratch...

  3. adhesionvia template-driven mineralization: Topics by E-print...

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

    Foreign investment: Coal 45 1 Oil 4.7 6 Industrial minerals: Cement 42 1 Fluorspar 55 1 Rare earths 85 1 Metals: Aluminum 90 Mineral-filled polypropylene: Improvement of scratch...

  4. austrian mineral water: Topics by E-print Network

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

    Foreign investment: Coal 45 1 Oil 4.7 6 Industrial minerals: Cement 42 1 Fluorspar 55 1 Rare earths 85 1 Metals: Aluminum 223 Mineral-filled polypropylene: Improvement of scratch...

  5. antimony minerals part: Topics by E-print Network

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

    Foreign investment: Coal 45 1 Oil 4.7 6 Industrial minerals: Cement 42 1 Fluorspar 55 1 Rare earths 85 1 Metals: Aluminum 151 Mineral-filled polypropylene: Improvement of scratch...

  6. The Link between Clay Mineral Weathering and the Stabilization of

    E-Print Network [OSTI]

    Sparks, Donald L.

    The Link between Clay Mineral Weathering and the Stabilization of Ni Surface Precipitates R O B E R 19717 The formation of transition-metal surface precipitates may occur during sorption to clay minerals formation are poorly understood. We monitored changes in the reversibility of Ni sorbed to a clay mineral

  7. 2008 Minerals Yearbook U.S. Department of the Interior

    E-Print Network [OSTI]

    2008 Minerals Yearbook U.S. Department of the Interior U.S. Geological Survey TITANIUM October 2010, international data coordinator. World production of titanium dioxide (TiO2 ) contained in titanium mineral to be heavily reliant on imports of titanium mineral concentrates from Australia, Canada, and South Africa

  8. Mineralization of Pentachlorophenol With Enhanced Degradation and Power Generation From

    E-Print Network [OSTI]

    ARTICLE Mineralization of Pentachlorophenol With Enhanced Degradation and Power Generation From Air to completely mineralize pentachlorophenol (PCP; 5 mg/L), in the pres- ence of acetate or glucose. Degradation; mineralization Introduction Pentachlorophenol (PCP) is one of many recalcitrant and toxic compounds found

  9. 2007 Minerals Yearbook U.S. Department of the Interior

    E-Print Network [OSTI]

    2007 Minerals Yearbook U.S. Department of the Interior U.S. Geological Survey BORON May 2010 #12, international data coordinator. U.S. consumption of minerals and compounds reported in boron oxide content (tables 1, 5). Turkey and the United States were the world's leading producers of boron minerals (table 6

  10. Mineral formation during simulated leaks of Hanford waste tanks

    E-Print Network [OSTI]

    Flury, Markus

    Mineral formation during simulated leaks of Hanford waste tanks Youjun Deng a , James B. Harsh a at the US DOE Hanford Site, Washington, caus- ing mineral dissolution and re-precipitation upon contact with subsurface sediments. The main mineral precipitation and transformation pathways were studied in solutions

  11. King Fahd University of Petroleum and Minerals Electrical Engineering Department

    E-Print Network [OSTI]

    Al-Ghadhban, Samir

    King Fahd University of Petroleum and Minerals Electrical Engineering Department EE399 Summer Tra Advisor Examiner King Fahd University of Petroleum and Minerals Electrical Engineering Department EE399-Shafie ID: 200669580 King Fahd University of Petroleum and Minerals #12;2 · TAPLE OF CONNTENT - Introduction

  12. 2011 Minerals Yearbook U.S. Department of the Interior

    E-Print Network [OSTI]

    2011 Minerals Yearbook U.S. Department of the Interior U.S. Geological Survey ZIRCONIUM AND HAFNIUM mineral concentrates in 2011, excluding U.S. production, was about 1.62 million metric tons (Mt) compared with 1.25 Mt in 2010. The primary source of zirconium was the mineral zircon (ZrSiO4 ), principally found

  13. 2008 Minerals Yearbook U.S. Department of the Interior

    E-Print Network [OSTI]

    2008 Minerals Yearbook U.S. Department of the Interior U.S. Geological Survey BORON October 2010, international data coordinator. U.S. consumption of minerals and compounds reported in boron oxide continued and the United States were the world's leading producers of boron minerals (table 6). World production of boron

  14. LUNAR MINERALS James Papike, Lawrence Taylor, and Steven Simon

    E-Print Network [OSTI]

    Rathbun, Julie A.

    LUNAR MINERALS James Papike, Lawrence Taylor, and Steven Simon The lunar rocks described--make it easy to distinguish them from terrestrial rocks. However, the minerals that make up lunar rocks are (with a few notable exceptions) minerals that are also found on Earth. Both lunar and terrestrial rocks

  15. MIXTURES OF FINE-GRAINED MINERALS KAOLINITE AND CARBONATE GRAINS

    E-Print Network [OSTI]

    Palomino, Angelica M.

    MIXTURES OF FINE-GRAINED MINERALS À KAOLINITE AND CARBONATE GRAINS ANGELICA M. PALOMINO 1, *, SUSAN, Georgia 30332-0355, USA Abstract--The behavior of mineral mixtures can be significantly different from properties of the individual minerals, and their ensuing effects on interparticle interactions and fabric

  16. Ab initio theory of phase transitions and thermoelasticity of minerals

    E-Print Network [OSTI]

    Oganov, Artem R.

    Ab initio theory of phase transitions and thermoelasticity of minerals ARTEM R. OGANOV* , JOHN P transitions, equations of state, elasticity and thermoelastic properties of the Earth-forming minerals minerals at the extreme conditions of the Earth's interior. One can accurately predict the structures

  17. 2006 Minerals Yearbook U.S. Department of the Interior

    E-Print Network [OSTI]

    2006 Minerals Yearbook BORON U.S. Department of the Interior U.S. Geological Survey October 2007 tetraborate decahydrate and found in nature as the mineral tincal. Boric acid, also known as orthoboric acid boric acid. The most common minerals of commercial importance in the United States were colemanite

  18. Mineralization by Inhibitor Exclusion THE CALCIFICATION OF COLLAGEN WITH FETUINS

    E-Print Network [OSTI]

    Price, Paul A.

    Mineralization by Inhibitor Exclusion THE CALCIFICATION OF COLLAGEN WITH FETUINS Received is to understand the mechanisms that deposit mineral within collagen fibrils, and as a first step we recentlyDa protein are excluded. Based on these observations, we proposed a novel mechanism for fibril mineralization

  19. COLLECTIONS POLICY MANUAL Earth and Mineral Sciences Museum

    E-Print Network [OSTI]

    Maroncelli, Mark

    COLLECTIONS POLICY MANUAL Earth and Mineral Sciences Museum College of Earth and Mineral Sciences Manual for the Earth and Mineral Sciences Museum has been developed to standardize procedures and provide guidelines for handling collections. The policies outlined here were established by the EMS Museum Director

  20. Carbon Sequestration via Mineral Carbonation: Overview and Assessment

    E-Print Network [OSTI]

    1 Carbon Sequestration via Mineral Carbonation: Overview and Assessment 14 March 2002 Howard Herzog overview and assessment of carbon sequestration by mineral carbonation (referred to as "mineral sequestration R&D. The first is that carbonates have a lower energy state than CO2. Therefore, at least

  1. 2009 Minerals Yearbook U.S. Department of the Interior

    E-Print Network [OSTI]

    2009 Minerals Yearbook U.S. Department of the Interior U.S. Geological Survey BORON [ADVANCE, and Blacksburg, SC, through Industrial Minerals Inc. (American Borate Co., 2005; Industrial Minerals Inc., 2007 extracted from three salt layers, up to 100 meters (m) deep, in Searles Lake, located near Trona in San

  2. Molecular Characterization of Bacterial Respiration on Minerals

    SciTech Connect (OSTI)

    Blake, Robert C.

    2013-04-26T23:59:59.000Z

    The overall aim of this project was to contribute to our fundamental understanding of proteins and biological processes under extreme environmental conditions. We sought to define the biochemical and physiological mechanisms that underlie biodegradative and other cellular processes in normal, extreme, and engineered environments. Toward that end, we sought to understand the substrate oxidation pathways, the electron transport mechanisms, and the modes of energy conservation employed during respiration by bacteria on soluble iron and insoluble sulfide minerals. In accordance with these general aims, the specific aims were two-fold: To identify, separate, and characterize the extracellular biomolecules necessary for aerobic respiration on iron under strongly acidic conditions; and to elucidate the molecular principles whereby these bacteria recognize and adhere to their insoluble mineral substrates under harsh environmental conditions. The results of these studies were described in a total of nineteen manuscripts. Highlights include the following: 1. The complete genome of Acidithiobacillus ferrooxidans ATCC 23270 (type strain) was sequenced in collaboration with the DOE Joint Genome Institute; 2. Genomic and mass spectrometry-based proteomic methods were used to evaluate gene expression and in situ microbial activity in a low-complexity natural acid mine drainage microbial biofilm community. This was the first effort to successfully analyze a natural community using these techniques; 3. Detailed functional and structural studies were conducted on rusticyanin, an acid-stable electron transfer protein purified from cell-free extracts of At. ferrooxidans. The three-dimensional structure of reduced rusticyanin was determined from a combination of homonuclear proton and heteronuclear 15N- and 13C-edited NMR spectra. Concomitantly, the three-dimensional structure of oxidized rusticyanin was determined by X-ray crystallography to a resolution of 1.9 A by multiwavelength anomalous dispersion (MAD) phasing; 4. An acid-stable red cytochrome with a novel absorbance peak at 579 nm was purified from cell-free extracts of L. ferriphilum. Functional studies demonstrated that this cytochrome was an important component of the aerobic iron respiratory chain in this organism; 5. The specific adhesion of At. ferrooxidans to pyrite is mediated by an extracellular protein that was identified as aporusticyanin. The adhesion of At. ferrooxidans to minerals was characterized by high affinity binding that exhibited a high specificity for pyrite over other sulfide minerals. The principal biopolymer involved in this high-affinity adhesion to pyrite was isolated by mineral affinity chromatography and identified as aporusticyanin. The adhesion of purified aporusticyanin to minerals was observed to adhere to different mineral with a pattern of reactivity identical to that observed with the intact bacterium. Further, preincubation of pyrite with excess exogenous aporusticyanin served to inhibit the adherence of intact cells to the surface of the mineral, indicating that the protein and the cells adhered to the pyrite in a mutually exclusive manner. Taken together, these observations support a model where aporusticyanin located on the surface of the bacterial cell acts as a mineral-specific receptor for the initial adherence of At. ferrooxidans to solid pyrite; 6. The specific adhesion of L. ferriphilum to pyrite was mediated by a different acid-stable extracellular protein than aporusticyanin; and 7. A prototype integrating cavity absorption meter (ICAM) was assembled to determine whether this novel spectrophotometer could be used to study cellular respiration in situ.

  3. Mineral content analysis of atmospheric dust using hyperspectral information from space

    E-Print Network [OSTI]

    Kostinski, Alex

    Mineral content analysis of atmospheric dust using hyperspectral information from space A one of the world's largest sources of atmospheric mineral dust. Mineral composition optical properties, and mineral deposition to Amazon forests. In this study we examine hyperspectral

  4. The production of consumption: addressing the impact of mineral mining on tuberculosis in southern Africa

    E-Print Network [OSTI]

    Basu, Sanjay; Stuckler, David; Gonsalves, Gregg; Lurie, Mark

    2009-01-01T23:59:59.000Z

    of South Africa: Department of Minerals and Energy; SouthSouth Africa, various departments, ranging from the Minerals and Energyof Minerals and Energy: Mining and minerals in South Africa:

  5. Clay minerals in the Meuse -Haute Marne underground laboratory (France): Possible influence of organic matter on clay mineral evolution

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Clay minerals in the Meuse - Haute Marne underground laboratory (France): Possible influence of organic matter on clay mineral evolution Francis Claret1,2,* , Boris A. Sakharov3 , Victor A. Drits3 words: Callovo-Oxfordian, Clay minerals, Clay diagenesis, Illite-smectite, Mixed- layering

  6. The impact of main belt asteroids on infrared--submillimetre photometry and source counts

    E-Print Network [OSTI]

    Cs. Kiss; A. Pal; Th. G. Mueller; P. Abraham

    2007-11-28T23:59:59.000Z

    > Among the components of the infrared and submillimetre sky background, the closest layer is the thermal emission of dust particles and minor bodies in the Solar System. This contribution is especially important for current and future infrared and submillimetre space instruments --like those of Spitzer, Akari and Herschel -- and must be characterised by a reliable statistical model. > We describe the impact of the thermal emission of main belt asteroids on the 5...1000um photometry and source counts, for the current and future spaceborne and ground-based instruments, in general, as well as for specific dates and sky positions. > We used the statistical asteroid model (SAM) to calculate the positions of main belt asteroids down to a size of 1km, and calculated their infrared and submillimetre brightness using the standard thermal model. Fluctuation powers, confusion noise values and number counts were derived from the fluxes of individual asteroids. > We have constructed a large database of infrared and submillimetre fluxes for SAM asteroids with a temporal resolution of 5 days, covering the time span January 1, 2000 -- December 31, 2012. Asteroid fluctuation powers and number counts derived from this database can be obtained for a specific observation setup via our public web-interface. > Current space instruments working in the mid-infrared regime (Akari and Spitzer Space Telescopes) are affected by asteroid confusion noise in some specific areas of the sky, while the photometry of space infrared and submillimetre instruments in the near future (e.g. Herschel and Planck Space Observatories) will not be affected by asteroids. Faint main belt asteroids might also be responsible for most of the zodiacal emission fluctuations near the ecliptic.

  7. Minerals Management Service perspective of platform reassessment

    SciTech Connect (OSTI)

    Dyhrkopp, F.G. [Minerals Management Service, New Orleans, LA (United States). Office of Structural and Technical Support

    1995-10-01T23:59:59.000Z

    As a result of the destruction caused by the Loma Prieta Earthquake, which occurred in the San Francisco Bay Area in 1989, and the passage of Hurricane Andrew through the Central Gulf of Mexico (GOM) oil and gas fields in August 1002, the Minerals Management Service (MMS) has been actively developing a policy over the past few years that will comprehensively address the reassessment of existing Outer Continental Shelf (OCS) oil and gas structures. Central to the development of such policy has been the need to develop a procedure by which reassessment can be carried out. This paper discusses the history of MMS involvement in the area of reassessment, their concerns, and how they view the reassessment procedures found in the Draft Section 17, Assessment of Existing Platforms, proposed for inclusion in future API RP 2A Editions. Minerals Management Service procedures for review and approval of proposals to remove and reuse existing structures in OCS waters are also discussed.

  8. New Horizons Science Photos from NASA's Pluto-Kuiper Belt Mission

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

    DOE provided the power supply for NASA's New Horizons Mission, a mission to the Pluto and Charon, a double-planet system, and the Kuiper Belt. There are 61 science photos posted on the New Horizons website, along with mission photos, spacecraft images, launch photos, posters and renderings that are both scientific and artistic. Dates range from June of 2006 to February of 2008. The images can be searched by keywords, by date, or by subject topic. They can also be browsed as an entire list. Each image has a detailed description.

  9. Water Ice in 2060 Chiron and its Implications for Centaurs and Kuiper Belt Objects

    E-Print Network [OSTI]

    J. X. Luu; D. C. Jewitt; C. Trujillo

    2000-02-04T23:59:59.000Z

    We report the detection of water ice in the Centaur 2060 Chiron, based on near-infrared spectra (1.0 - 2.5 micron) taken with the 3.8-meter United Kingdom Infrared Telescope (UKIRT) and the 10-meter Keck Telescope. The appearance of this ice is correlated with the recent decline in Chiron's cometary activity: the decrease in the coma cross-section allows previously hidden solid-state surface features to be seen. We predict that water ice is ubiquitous among Centaurs and Kuiper Belt objects, but its surface coverage varies from object to object, and thus determines its detectability and the occurrence of cometary activity.

  10. Emplacement of the Moxa Arch and interaction with the Western Overthrust Belt, Wyoming

    E-Print Network [OSTI]

    Kraig, David Harry

    1986-01-01T23:59:59.000Z

    of MASTER OF SCIENCE May 1986 Major Subject: Geology EMPLACEMENT OF THE MOXA ARCH AND INTERACTION WITH THE WESTERN OVERTHRUST BELT, WYOMING A Thesis by DAVID HARRY KRAIG Approved as to style and content by: David V. Wiltschko (Chairman of Committee... College B. S. The University of New Mexico Chairman of Advisory Committee: Dr. David V. Wiltschko The northern segment of the Moxa Arch is modeled as uplifted along a low-angle thrust (Moxa thrust, MT). The west-verging MT cuts up section from...

  11. Energy and mineral resource systems: An introduction

    SciTech Connect (OSTI)

    Tapp, B.A.; Watkins, J.R.

    1990-01-01T23:59:59.000Z

    This book provides a welcome approach to understanding the fundamental role that energy and mineral resources play in the affairs of nations and individuals. Chapter 1 presents background material on energy in the human environment. Chapter 2 deals with historical changes in predominant energy sources, energy efficiencies based on the first and second laws of thermodynamics, potential utility of secondary energy sources, and the distribution of energy reserves among political and economic units. Chapter 3 discusses the methods and pitfalls of projecting future energy demand and technologies of alternative energy sources. Chapter 4 analyzes the projected growth-decline patterns in world oil and coal production, viability of alternative sources, and three possible future energy scenarios. Chapter 5 concludes with methods of energy flow analysis and further discussion on future energy scenarios. Chapter 6 begins by establishing several basic points about mineral resource systems then proceeds with a discussion of consumption-production patterns of metals. Chapter 7 presents estimates of global metal stocks, outlines factors determining metal demand, and examines metal import-export balances and resource potential for Australia and the Pacific Basin region. Chapter 8 highlights current issues that affect the mineral resource industry. Chapter 9 recounts the historical changes in exploration approaches, from prospecting to the utilization of genetic models, specialist teams, and regional geochemical and geophysical surveys. Chapter 10 assesses the implications of the previously noted trends in metal consumption and new technologies and concludes that future energy and mineral resource system evaluations will be according to new strategems and economic criteria.

  12. IEED Energy and Mineral Development Grants

    Broader source: Energy.gov [DOE]

    The Secretary of the Interior, through the Office of lndian Energy and Economic Development (IEED), is soliciting grant proposals from federally recognized Indian tribes and tribal energy resource development organizations for projects that assess, evaluate, or otherwise promote the processing, use, or development of energy and mineral resources on Indian lands. Grant awards are subject to the availability of funds as appropriated by Congress and allotted to IEED.

  13. Inward shift of outer radiation belt electrons as a function of Dst index and the influence of the solar wind on electron injections

    E-Print Network [OSTI]

    Li, Xinlin

    Inward shift of outer radiation belt electrons as a function of Dst index and the influence of the solar wind on electron injections into the slot region H. Zhao1 and X. Li1 Received 30 July 2012; revised 11 November 2012; accepted 13 November 2012. [1] The radial positioning of radiation belt

  14. The Ratio of Retrograde to Prograde Orbits: A Test for Kuiper Belt Binary Formation Theories

    E-Print Network [OSTI]

    Hilke E. Schlichting; Re'em Sari

    2008-07-03T23:59:59.000Z

    With the discovery of Kuiper Belt binaries that have wide separations and roughly equal masses new theories were proposed to explain their formation. Two formation scenarios were suggested by Goldreich and collaborators: In the first, dynamical friction that is generated by a sea of small bodies enables a transient binary to become bound ($L^2s$ mechanism); in the second, a transient binary gets bound by an encounter with a third body ($L^3$ mechanism). We show that these different binary formation scenarios leave their own unique signatures in the relative abundance of prograde to retrograde binary orbits. This signature is due to stable retrograde orbits that exist much further out in the Hill sphere than prograde orbits. It provides an excellent opportunity to distinguish between the different binary formation scenarios observationally. We predict that if binary formation proceeded while sub-Hill velocities prevailed, the vast majority of all comparable mass ratio binaries have retrograde orbits. This dominance of retrograde binary orbits is a result of binary formation via the $L^2s$ mechanism, or any other mechanism that dissipates energy in a smooth and gradual manner. For super-Hill velocities binary formation proceeds via the $L^3$ mechanism which produces a roughly equal number of prograde and retrograde binaries. These predictions assume that subsequent orbital evolution due to dynamical friction and dynamical stirring of the Kuiper belt did not alter the sense of the binary orbit after formation.

  15. Main-Belt Asteroids in the K2 Engineering Field of View

    E-Print Network [OSTI]

    Szabó, R; Szabó, Gy M; Pál, A; Kiss, Cs P; Csák, B; Illés, L; Rácz, G; Kiss, L L

    2015-01-01T23:59:59.000Z

    Unlike NASA's original Kepler Discovery Mission, the renewed K2 Mission will stare at the plane of the Ecliptic, observing each field for approximately 75 days. This will bring new opportunities and challenges, in particular the presence of a large number of main-belt asteroids that will contaminate the photometry. The large pixel size makes K2 data susceptible to the effect of apparent minor planet encounters. Here we investigate the effects of asteroid encounters on photometric precision using a sub-sample of the K2 Engineering data taken in February, 2014. We show examples of asteroid contamination to facilitate their recognition and distinguish these events from other error sources. We conclude that main-belt asteroids will have considerable effects on K2 photometry of a large number of photometric targets during the Mission, that will have to be taken into account. These results will be readily applicable for future space photometric missions applying large-format CCDs, such as TESS and PLATO.

  16. Discovery of a planetary-sized object in the scattered Kuiper belt

    E-Print Network [OSTI]

    M. E. Brown; C. A. Trujillo; D. L. Rabinowitz

    2005-08-30T23:59:59.000Z

    We present the discovery and initial physical and dynamical characterization of the object 2003 UB313. The object is sufficiently bright that for all reasonable values of the albedo it is certain to be larger than Pluto. Pre-discovery observations back to 1989 are used to obtain an orbit with extremely small errors. The object is currently at aphelion in what appears to be a typical orbit for a scattered Kuiper belt object except that it is inclined by about 44 degrees from the ecliptic. The presence of such a large object at this extreme inclination suggests that high inclination Kuiper belt objects formed preferentially closer to the sun. Observations from Gemini Observatory show that the infrared spectrum is, like that of Pluto, dominated by the presence of frozen methane, though visible photometry shows that the object is almost neutral in color compared to Pluto's extremely red color. 2003 UB313 is likely to undergo substantial seasonal change over the large range of heliocentric distances that it travels; Pluto at its current distance is likely to prove a useful analog for better understanding the range of seasonal changes on this body.

  17. Minerals yearbook: Mineral industries of Europe and the USSR. Volume 3. 1990 international review

    SciTech Connect (OSTI)

    Not Available

    1990-01-01T23:59:59.000Z

    The section of the Minerals Yearbook reviews the minerals industries of 29 countries: the 12 nations of the European Community (Belgium, France, the Federal Republic of Germany (FRG), Italy, Greece, the Netherlands, Denmark/Greenland, Spain, Portugal, Luxembourg, The United Kingdom, and Ireland); 6 of the 7 nations of the European Free Trade Association (Sweden, Norway, Finland, Iceland, Austria, and Switzerland); Malta; the 8 Centrally Planned Economies of Eastern Europe (the German Democratic Republic (GDR), Poland, Yugoslavia, Albania, Hungary, Czechoslovakia, Romania, and Bulgaria); and the USSR.

  18. Nevada Division of Minerals | 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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to: navigation, searchOfRoseConcerns Jump to:Neppel Wind Power ProjectNeutron LogWildlifeMinerals

  19. Mineral Springs of Alaska | 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 onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant JumpMarysville, Ohio:Menomonee|MililaniMindanao GEPP Jump to:WestReport: Mineral

  20. Selective flotation of phosphate minerals with hydroxamate collectors

    DOE Patents [OSTI]

    Miller, Jan D. (Salt Lake City, UT); Wang, Xuming (Salt Lake City, UT); Li, Minhua (Salt Lake City, UT)

    2002-01-01T23:59:59.000Z

    A method is disclosed for separating phosphate minerals from a mineral mixture, particularly from high-dolomite containing phosphate ores. The method involves conditioning the mineral mixture by contacting in an aqueous in environment with a collector in an amount sufficient for promoting flotation of phosphate minerals. The collector is a hydroxamate compound of the formula; ##STR1## wherein R is generally hydrophobic and chosen such that the collector has solubility or dispersion properties it can be distributed in the mineral mixture, typically an alkyl, aryl, or alkylaryl group having 6 to 18 carbon atoms. M is a cation, typically hydrogen, an alkali metal or an alkaline earth metal. Preferably, the collector also comprises an alcohol of the formula, R'--OH wherein R' is generally hydrophobic and chosen such that the collector has solubility or dispersion properties so that it can be distributed in the mineral mixture, typically an alkyl, aryl, or alkylaryl group having 6 to 18 carbon atoms.

  1. Sustainable Water Management in the Minerals Industry 1 SUSTAINABLE WATER MANAGEMENT IN THE MINERALS

    E-Print Network [OSTI]

    McGuinness, Mark

    Sustainable Water Management in the Minerals Industry 1 SUSTAINABLE WATER MANAGEMENT interest. It arises in the provision of water for Queensland coal mines, where additional water is available via a pipeline from a public supply, and also in cases where recycled or more expensive water

  2. INITIAL PLANETESIMAL SIZES AND THE SIZE DISTRIBUTION OF SMALL KUIPER BELT OBJECTS

    SciTech Connect (OSTI)

    Schlichting, Hilke E. [UCLA, Department of Earth and Space Science, 595 Charles E. Young Drive East, Los Angeles, CA 90095 (United States); Fuentes, Cesar I.; Trilling, David E., E-mail: hilke@ucla.edu [Department of Physics and Astronomy, Northern Arizona University, P.O. Box 6010, Flagstaff, AZ 86011 (United States)

    2013-08-01T23:59:59.000Z

    The Kuiper Belt is a remnant from the early solar system and its size distribution contains many important constraints that can be used to test models of planet formation and collisional evolution. We show, by comparing observations with theoretical models, that the observed Kuiper Belt size distribution is well matched by coagulation models, which start with an initial planetesimal population with radii of about 1 km, and subsequent collisional evolution. We find that the observed size distribution above R {approx} 30 km is primordial, i.e., it has not been modified by collisional evolution over the age of the solar system, and that the size distribution below R {approx} 30 km has been modified by collisions and that its slope is well matched by collisional evolution models that use published strength laws. We investigate in detail the resulting size distribution of bodies ranging from 0.01 km to 30 km and find that its slope changes several times as a function of radius before approaching the expected value for an equilibrium collisional cascade of material strength dominated bodies for R {approx}< 0.1 km. Compared to a single power-law size distribution that would span the whole range from 0.01 km to 30 km, we find in general a strong deficit of bodies around R {approx} 10 km and a strong excess of bodies around 2 km in radius. This deficit and excess of bodies are caused by the planetesimal size distribution left over from the runaway growth phase, which left most of the initial mass in small planetesimals while only a small fraction of the total mass is converted into large protoplanets. This excess mass in small planetesimals leaves a permanent signature in the size distribution of small bodies that is not erased after 4.5 Gyr of collisional evolution. Observations of the small Kuiper Belt Object (KBO) size distribution can therefore test if large KBOs grew as a result of runaway growth and constrained the initial planetesimal sizes. We find that results from recent KBO occultation surveys and the observed KBO size distribution can be best matched by an initial planetesimal population that contained about equal mass per logarithmic mass bin in bodies ranging from 0.4 km to 4 km in radius. We further find that we cannot match the observed KBO size distribution if most of the planetesimal mass was contained in bodies that were 10 km in radius or larger simply because their resulting size distribution cannot be sufficiently depleted over 4.5 Gyr to match observations.

  3. Title: Prompt Creation of New Radiation Belts Cluster: Cross-Theme Theory and Data Analysis/SECTP

    E-Print Network [OSTI]

    Lotko, William

    energization rates that are orders of magnitude too slow for such events; and they only describe-pushing code for radiation belt particles in a global MHD simulation of the solar wind energy (>20 MeV), trapping and transporting inward the extreme solar energetic protons produced

  4. Magnetic storm acceleration of radiation belt electrons observed by the Scintillating Fibre Detector (SFD) onboard EQUATOR-S

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    on the 500±67300 km, 4° inclination EQUATOR-S orbit show that the increase of the energetic electron ¯ux of electrons in the outer radiation belt has been attributed to Pc 5 band ULF waves excited by high speed solar wind ¯ow associated with magnetic storms (Rostoker et al., 1998). The main features

  5. Mass movement-induced fold-and-thrust belt structures in unconsolidated sediments in Lake Lucerne (Switzerland)

    E-Print Network [OSTI]

    Gilli, Adrian

    Mass movement-induced fold-and-thrust belt structures in unconsolidated sediments in Lake Lucerne coring in Lake Lucerne, Switzerland, have revealed surprising deformation structures in flat in Lake Lucerne affecting four sections of the lake floor with areas ranging from 0Æ25 to 6Æ5 km2 in area

  6. The vertical separation of mainshock rupture and microseismicity at Qeshm island in the Zagros fold-and-thrust belt, Iran

    E-Print Network [OSTI]

    Elliott, John

    -and-thrust belt, Iran E. Nissen a, , F. Yamini-Fard b , M. Tatar b , A. Gholamzadeh b,1 , E. Bergman c , J Engineering and Seismology, PO Box 19395-3913, Tehran, Iran c Department of Physics, University of Colorado rights reserved. 1. Introduction The Zagros mountains in south-western Iran are one of the most rapidly

  7. Reclamation of Land Used for Mineral Mining (Virginia)

    Broader source: Energy.gov [DOE]

    This legislation aims to provide for the rehabilitation and conservation of land affected by the mining of minerals through proper planning, proper use of appropriate methods of mining,...

  8. Australasian Code for Reporting of Exploration Results, Mineral...

    Open Energy Info (EERE)

    (JORC) Published The Joint Ore Reserves Committee of The Australasian Institute of Mining and Metallurgy, Australian Institute of Geoscientists, and Minerals Council of...

  9. Epithermal Gold Mineralization and a Geothermal Resource at Blue...

    Open Energy Info (EERE)

    Epithermal Gold Mineralization and a Geothermal Resource at Blue Mountain, Humboldt County, Nevada Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal...

  10. Climate VISION: Private Sector Initiatives: Minerals: GHG Inventory...

    Office of Scientific and Technical Information (OSTI)

    GHG Inventory Protocols Read the Industrial Minerals Association - North America (IMA-NA) Borates and Soda Ash Sections Greenhouse Gas Inventory Protocol (PDF 75 KB) Download...

  11. Understanding Mineral Transport in Switchgrass | U.S. DOE Office...

    Office of Science (SC) Website

    minerals influence the platform (e.g., pyrolysis, thermochemistry) used to produce biofuels from plant feedstocks. For example, high levels of silicon in ash decrease conversion...

  12. DOE - Office of Legacy Management -- International Minerals and...

    Office of Legacy Management (LM)

    Corp - Bonnie Mill Plant - FL 03 FUSRAP Considered Sites Site: International Minerals and Chemicals Corp., Bonnie Mill Plant (FL.03) Eliminated from consideration under...

  13. archaeology mineral exploration: Topics by E-print Network

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

    of Archaeology Press emphasizes primary research data and its 172 Oil and Gas Exploration Geosciences Websites Summary: Metals Industrial Minerals Oil and Gas Geothermal...

  14. Earth's most abundant mineral finally has a name | Argonne National...

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

    clarified the definition of Bridgmanite, a high-density form of magnesium iron silicate and the Earth's most abundant mineral - using Argonne National Laboratory's Advanced...

  15. SpectraMiner, an Interactive Data Mining and Visualization Software...

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

    we call SpectraMiner that makes it possible to handle hundreds of clusters without loss of information and thus overcome the limits set by traditional statistical data...

  16. Oxygen And Carbon Isotope Ratios Of Hydrothermal Minerals From...

    Open Energy Info (EERE)

    Oxygen And Carbon Isotope Ratios Of Hydrothermal Minerals From Yellowstone Drill Cores Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Oxygen...

  17. atomic minerals exploration: Topics by E-print Network

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

    method for delineating covered mineralization. Plants are capable of accumulating rare earth elements (REEs) in their tissue, and (more) Bluemel, Britt 2014-01-01 35...

  18. arable mineral soils: Topics by E-print Network

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

    year (tyr) of magnesium ferrosilicon, and 8,500 tyr of ferrosilicon (Globe Specialty Metals, inc 320 Placement of Mineral Trioxide Aggregate Using Two Different Techniques....

  19. Mineral Association Changes the Secondary Structure and Dynamics...

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

    Dynamics of Murine Amelogenin. Mineral Association Changes the Secondary Structure and Dynamics of Murine Amelogenin. Abstract: Biomineralization proteins, present during the...

  20. A Film Depositional Model of Permeability for Mineral Reactions...

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

    to solid-aqueous phase reactions. Citation: Freedman VL, P Saripalli, DH Bacon, and PD Meyer.2004."A Film Depositional Model of Permeability for Mineral Reactions in Unsaturated...

  1. SkyMine Carbon Mineralization Pilot Project

    SciTech Connect (OSTI)

    Christenson, Norm; Walters, Jerel

    2014-12-31T23:59:59.000Z

    This Topical Report addresses accomplishments achieved during Phase 2b of the SkyMine® Carbon Mineralization Pilot Project. The primary objectives of this project are to design, construct, and operate a system to capture CO2 from a slipstream of flue gas from a commercial coal-fired cement kiln, convert that CO2 to products having commercial value (i.e., beneficial use), show the economic viability of the CO2 capture and conversion process, and thereby advance the technology to the point of readiness for commercial scale demonstration and deployment. The overall process is carbon negative, resulting in mineralization of CO2 that would otherwise be released into the atmosphere. The project will also substantiate market opportunities for the technology by sales of chemicals into existing markets, and identify opportunities to improve technology performance and reduce costs at the commercial scale. The project is being conducted in two phases. The primary objectives of Phase 1 were to evaluate proven SkyMine® process chemistry for commercial pilot-scale operation and complete the preliminary design for the pilot plant to be built and operated in Phase 2, complete a NEPA evaluation, and develop a comprehensive carbon life cycle analysis. The objective of Phase 2b was to build the pilot plant to be operated and tested in Phase 2c.

  2. Mineral dissolution kinetics at the pore scale

    SciTech Connect (OSTI)

    Li, L.; Steefel, C.I.; Yang, L.

    2007-05-24T23:59:59.000Z

    Mineral dissolution rates in the field have been reported to be orders of magnitude slower than those measured in the laboratory, an unresolved discrepancy that severely limits our ability to develop scientifically defensible predictive or even interpretive models for many geochemical processes in the earth and environmental sciences. One suggestion links this discrepancy to the role of physical and chemical heterogeneities typically found in subsurface soils and aquifers in producing scale-dependent rates where concentration gradients develop. In this paper, we examine the possibility that scale-dependent mineral dissolution rates can develop even at the single pore and fracture scale, the smallest and most fundamental building block of porous media. To do so, we develop two models to analyze mineral dissolution kinetics at the single pore scale: (1) a Poiseuille Flow model that applies laboratory-measured dissolution kinetics at the pore or fracture wall and couples this to a rigorous treatment of both advective and diffusive transport, and (2) a Well-Mixed Reactor model that assumes complete mixing within the pore, while maintaining the same reactive surface area, average flow rate, and geometry as the Poiseuille Flow model. For a fracture, a 1D Plug Flow Reactor model is considered in addition to quantify the effects of longitudinal versus transverse mixing. The comparison of averaged dissolution rates under various conditions of flow, pore size, and fracture length from the three models is used as a means to quantify the extent to which concentration gradients at the single pore and fracture scale can develop and render rates scale-dependent. Three important minerals that dissolve at widely different rates, calcite, plagioclase, and iron hydroxide, are considered. The modeling indicates that rate discrepancies arise primarily where concentration gradients develop due to comparable rates of reaction and advective transport, and incomplete mixing via molecular diffusion. The magnitude of the reaction rate is important, since it is found that scaling effects (and thus rate discrepancies) are negligible at the single pore and fracture scale for plagioclase and iron hydroxide because of the slow rate at which they dissolve. In the case of calcite, where dissolution rates are rapid, scaling effects can develop at high flow rates from 0.1 cm/s to 1000 cm/s and for fracture lengths less than 1 cm. At more normal flow rates, however, mixing via molecular diffusion is effective in homogenizing the concentration field, thus eliminating any discrepancies between the Poiseuille Flow and the Well-Mixed Reactor model. This suggests that a scale dependence to mineral dissolution rates is unlikely at the single pore or fracture scale under normal geological/hydrologic conditions, implying that the discrepancy between laboratory and field rates must be attributed to other factors.

  3. Precipitation of radiation belt electrons by EMIC waves, observed from ground and space

    SciTech Connect (OSTI)

    Jordanova, Vania K [Los Alamos National Laboratory; Miyoski, Y [NAGOYA UNIV; Sakaguchi, K [NAGOYA UNIV; Shiokawa, K [NAGOYA UNIV; Evans, D S [NOAA, BOULDER; Albert, Jay [AFRL; Connors, M [UNIV OF ATHABASCA

    2008-01-01T23:59:59.000Z

    We show evidence that left-hand polarised electromagnetic ion cyclotron (EMIC) plasma waves can cause the loss of relativistic electrons into the atmosphere. Our unique set of ground and satellite observations shows coincident precipitation of ions with energies of tens of keY and of relativistic electrons into an isolated proton aurora. The coincident precipitation was produced by wave-particle interactions with EMIC waves near the plasmapause. The estimation of pitch angle diffusion coefficients supports that the observed EMIC waves caused coincident precipitation ofboth ions and relativistic electrons. This study clarifies that ions with energies of tens of ke V affect the evolution of relativistic electrons in the radiation belts via cyclotron resonance with EMIC waves, an effect that was first theoretically predicted in the early 1970's.

  4. Geological evaluation of San Diego Norte Pilot Project, Zuata area, Orinoco Oil Belt, Venezuela

    SciTech Connect (OSTI)

    De Rojas, I.

    1987-10-01T23:59:59.000Z

    The San Diego Norte Pilot Project consists of twelve inclined wells (7 producing wells 300 m (984 ft) apart, plus 5 observation wells) drilled from a cluster, to study the production and compaction behavior under steam soak (huff and puff) of the Tertiary heavy crude oil reservoirs of the Zuata area. This area is located within the Orinoco Heavy Oil belt of Venezuela. A geological model was needed as a base for the reservoir studies and to understand the geological setting. This model was constructed from extensive log information, seismic lines, well samples, and cores. The reservoir sands are friable with an average porosity of 34% and permeabilities ranging from 1 to 7 ..mu..m/sup 2/ (1 to 7 darcys). The sands were deposited in meander belts that stacked up forming multistory bodies. Point bars and channel fills account for 80-90% of the total sand. These sands are internally heterogeneous, sinuous and elongated, and larger than the 1 km/sup 2/ area covered by the project. The topmost two productive sands, which together average 22 m (72 ft), show the best porosities and permeabilities and are isolated by thick clays that make them suitable for selective steam injection. In the project, the oil has a density of about 1.0 g/cm/sup 3/ (10/sup 0/ API) and fills all the sands down to the oil-water contact. The depth of this contact is controlled by regional faults. Based on core compressibility tests, compaction is expected to be the principal production mechanism that could increase the expected primary recovery of 4 to 12% by huff and puff steam injection, leading to a possible recovery of 0.64 x 10/sup 6/ m/sup 3/ (4 million bbl) in six years with four cycles of steam injection. 16 figures, 2 tables.

  5. Oak Ridge fault, Ventura fold belt, and the Sisar decollement, Ventura basin, California

    SciTech Connect (OSTI)

    Yeats, R.S.; Huftile, G.J.; Grigsby, F.B. (Oregon State Univ. Corvallis (USA))

    1988-12-01T23:59:59.000Z

    The rootless Ventura Avenue, San Miguelito, and Rincon anticlines (Ventura fold belt) in Pliocene -Pleistocene turbidites are fault-propagation folds related to south-dipping reverse faults rising from a decollement in Miocene shale. To the east, the Sulfur Mountain anticlinorium overlies and is cut by the Sisar, Big Canyon, and Lion south-dipping thrusts that merge downward into the Sisar decollement in lower Miocene shale. Shortening of the Miocene and younger sequence is {approximately} 3 km greater than that of underlying competent Paleogens strata in the Ventura fold belt and {approximately} 7 km greater farther east at Sulfur Mountain. Cross-section balancing requires that this difference be taken up by the Paleogene sequence at the Oak Ridge fault to the south. Convergence is northeast to north-northeast on the base of earthquake focal mechanisms, borehole breakouts, and piercing-point offest of the South Mountain seaknoll by the Oak Ridge fault. A northeast-trending line connecting the west end of Oak Ridge and the east end of Sisar fault separates an eastern domain where late Quaternary displacement is taken up entirely on the Oak Ridge fault and a western domain where displacement is transferred to the Sisar decollement and its overlying rootless folds. This implies that (1) the Oak Ridge fault near the coast presents as much seismic risk as it does farther east, despite negligible near-surface late Quaternary movement; (2) ground-rupture hazard is high for the Sisar fault set in the upper Ojai Valley; and (3) the decollement itself could produce an earthquake analogous to the 1987 Whittier Narrows event in Low Angeles.

  6. Respiratory disease in Utah coal miners

    SciTech Connect (OSTI)

    Rom, W.N.; Kanner, R.E.; Renzetti, A.D. Jr.; Shigeoka, J.W.; Barkman, H.W.; Nichols, M.; Turner, W.A.; Coleman, M.; Wright, W.E.

    1981-04-01T23:59:59.000Z

    Two hundred forty-two Utah underground coal miners volunteered to participate in a respiratory disease study. They were an older group (mean, 56 years of age) and had spent a mean of 29 years in the coal-mining industry. The prevalence of chronic bronchitis was 57%, and that of coal worker's pneumoconiosis, 25%; only one worker had progressive massive fibrosis. Significant impairment of pulmonary function was found among those with a history of cigarette smoking. Chronic bronchitis or coal worker's penumoconiosis among nonsmokers did not impair pulmonary function. There was a significant association among the nonsmokers between increasing exposure to coal dust and coal worker's pneumoconiosis, but not for changes in pulmonary function. Coal mine dust had a significant influence in causing the symptom complex of chronic cough and sputum production, and coal worker's pneumoconiosis.

  7. Respiratory disease in Utah coal miners

    SciTech Connect (OSTI)

    Rom, W.N.; Kanner, R.E.; Renzetti, A.D. Jr.; Shigeoka, J.W.; Barkman, H.W.; Nichols, M.; Turner, W.A.; Coleman, M.; Wright, W.E.

    1981-04-01T23:59:59.000Z

    Two hundred forty-two Utah underground coal miners volunteered to participate in a respiratory disease study. They were an older group (mean, 56 years of age) and had spent a mean of 29 years in the coal-mining industry. The prevalence of chronic bronchitis was 57%, and that of coal worker's pneumoconiosis, 25%; only one worker had progressive massive fibrosis. Significant impairment of pulmonary function was found among those with a history of cigarette smoking. Chronic bronchitis or coal worker's pneumoconiosis among nonsmokers did not impair pulmonary function. There was a significant association among the nonsmokers between increasing exposure to coal dust and coal worker's pneumoconiosis, but not for changes in pulmonary function. Coal mine dust had a significant influence in causing the symptom complex of chronic cough and sputum production, and coal worker's pneumoconiosis.

  8. Trichloroethylene Mineralization in a Fixed-Film Bioreactor Using a

    E-Print Network [OSTI]

    Wood, Thomas K.

    Trichloroethylene Mineralization in a Fixed-Film Bioreactor Using a Pure Culture Expressing: An aerobic, single-pass, fixed-film bioreactor become an important compound for hazardous waste was designed). Although M. trichosporium OB3b has the highestindicator of TCE mineralization, the bioreactor with acti

  9. ORIGINAL ARTICLE FGF and ERK signaling coordinately regulate mineralization-

    E-Print Network [OSTI]

    ORIGINAL ARTICLE FGF and ERK signaling coordinately regulate mineralization- related genes and play for Bone and Mineral Research and Springer 2011 Abstract To examine the roles of FGF and ERK MAPK signaling in an ERK MAPK-dependent manner. Real-time PCR analysis indicated that FGF2 upregulates Ank, Enpp1, Mgp, Slc

  10. Calcite Mineral Scaling Potentials of High-Temperature Geothermal Wells

    E-Print Network [OSTI]

    Karlsson, Brynjar

    #12;i Calcite Mineral Scaling Potentials of High-Temperature Geothermal Wells Alvin I. Remoroza-Temperature Geothermal Wells Alvin I. Remoroza 60 ECTS thesis submitted in partial fulfillment of a Magister Scientiarum #12;iv Calcite Mineral Scaling Potentials of High-Temperature Geothermal Wells 60 ECTS thesis

  11. Nanoparticulate bioavailable iron minerals in icebergs and glaciers R. RAISWELL

    E-Print Network [OSTI]

    Benning, Liane G.

    Nanoparticulate bioavailable iron minerals in icebergs and glaciers R. RAISWELL 1 , L. G. BENNING 1+ Raiswell et al. (2006, 2008) used high- resolution microscopy, combined with chemical extraction methods an important mineral signature for the chemistry of the subglacial environment, and that they are significant

  12. 2010 Minerals Yearbook U.S. Department of the Interior

    E-Print Network [OSTI]

    subsidiary of Australian company Iluka Resources Ltd.). DuPont produced zircon from its heavy-mineral sands2010 Minerals Yearbook U.S. Department of the Interior U.S. Geological Survey ZIRCONIUM AND HAFNIUM. In 2010, the global economy began to recover, and consumption of zirconium ores and concentrates increased

  13. ORIGINAL PAPER Comparison of manure compost and mineral fertilizer

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ORIGINAL PAPER Comparison of manure compost and mineral fertilizer for hybrid poplar plantation and methods Composted sheep manure (10 and 20 kg/tree) at planting was compared to N and P mineral Contrary to what we expected, compost treatments neither increased root development nor tree water status

  14. The solubility and kinetics of minerals under CO2-EGS geothermal conditions: Comparison of experimental and modeling results

    E-Print Network [OSTI]

    Xu, T.

    2014-01-01T23:59:59.000Z

    of rate parameters of water-mineral interaction kinetics forKinetic rate law for mineral dissolution and precipitationwhere n denotes kinetic mineral index, positive values of r

  15. The role of reaction affinity and secondary minerals in regulating chemical weathering rates at the Santa Cruz Soil Chronosequence, California

    E-Print Network [OSTI]

    Maher, K.

    2009-01-01T23:59:59.000Z

    on Reaction- Rates among Minerals and Aqueous-Solutions .1.as a result of secondary mineral precipitation and approachterm and Contemporary Mineral Weathering rates. Geochim.

  16. Log of Changes to IMA Mineral List This log file was begun in June 2010 to keep track of changes to the IMA list of minerals

    E-Print Network [OSTI]

    Downs, Robert T.

    1 Log of Changes to IMA Mineral List This log file was begun in June 2010 to keep track of changes to the IMA list of minerals at http://rruff.info/IMA. 2 August 2013: Eltyubyuite: New mineral descriptions of wadalite: a new mineral from the Northern Caucasus, Kabardino-Balkaria, Russia. European Journal

  17. Lab 2: Mineral Lab notes. Minerals are inorganic, solid, naturally occurring substances that have a characteristic chemical compositions,

    E-Print Network [OSTI]

    Li, X. Rong

    a characteristic chemical compositions, distinctive physical properties, and crystalline structures. Chemical is silicon dioxide SiO2; the mineral galena is an ore of lead, and its chemical formula is PbS, a lead sulfide; and the mineral calcite, which is used as an antacid and in fertilizers, is calcium carbonate Ca

  18. Bone Mineral Density, Bone Turnover, and Systemic Inflammation in Non-cirrhotics with Chronic Hepatitis C

    E-Print Network [OSTI]

    Lai, J; Shoback, DMA; Zipperstein, J; Lizaola, B; Tseng, S; Terrault, NA

    2015-01-01T23:59:59.000Z

    Mun˜oz-Torres M, et al. Bone mineral density, serum insulin-et al. Osteoporosis and bone mineral metabolism disorders in1069-9. 11. George J. Bone mineral density and disorders of

  19. Chemically Accelerated Carbon Mineralization: Chemical and Biological Catalytic Enhancement of Weathering of Silicate Minerals as Novel Carbon Capture and Storage

    SciTech Connect (OSTI)

    None

    2010-07-01T23:59:59.000Z

    IMPACCT Project: Columbia University is developing a process to pull CO2 out of the exhaust gas of coal-fired power plants and turn it into a solid that can be easily and safely transported, stored above ground, or integrated into value-added products (e.g. paper filler, plastic filler, construction materials, etc.). In nature, the reaction of CO2 with various minerals over long periods of time will yield a solid carbonate—this process is known as carbon mineralization. The use of carbon mineralization as a CO2 capture and storage method is limited by the speeds at which these minerals can be dissolved and CO2 can be hydrated. To facilitate this, Columbia University is using a unique process and a combination of chemical catalysts which increase the mineral dissolution rate, and the enzymatic catalyst carbonic anhydrase which speeds up the hydration of CO2.

  20. au ag-polymetallic mineralization: Topics by E-print Network

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

    for Mineral and Energy Physics Websites Summary: Institute for Mineral and Energy Resources Answering Global Resource and Energy Challenges 12;Answering Global Resource and...

  1. The production of consumption: addressing the impact of mineral mining on tuberculosis in southern Africa

    E-Print Network [OSTI]

    Basu, Sanjay; Stuckler, David; Gonsalves, Gregg; Lurie, Mark

    2009-01-01T23:59:59.000Z

    and Rights Alliance: The Mining Sector, Tuberculosis andthe impact of mineral mining on tuberculosis in southernbetween mineral mining activities and tuberculosis incidence

  2. Assessment of industrial minerals and rocks in the controlled area

    SciTech Connect (OSTI)

    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

    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.

  3. Twin-belt continuous caster with containment and cooling of the exiting cast product for enabling high-speed casting of molten-center product

    DOE Patents [OSTI]

    Dykes, Charles D. (303 Shore Rd., Milton, VT); Daniel, Sabah S. (303 Shore Rd., Pittsburgh, PA); Wood, J. F. Barry (303 Shore Rd., Burlington, VT 05401)

    1990-02-20T23:59:59.000Z

    In continuously casting molten metal into cast product by a twin-belt machine, it is desirable to achieve dramatic increases in speed (linear feet per minute) at which cast product exits the machine, particularly in installations where steel cast product is intended to feed a downstream regular rolling mill (as distinct from a planetary mill) operating in tandem with the twin-belt caster. Such high-speed casting produces product with a relatively thin shell and molten interior, and the shell tends to bulge outwardly due to metallostatic head pressure of the molten center. A number of cooperative features enable high-speed, twin-belt casting: (1) Each casting belt is slidably supported adjacent to the caster exit pulley for bulge control and enhanced cooling of cast product. (2) Lateral skew steering of each belt provides an effective increase in moving mold length plus a continuity of heat transfer not obtained with prior art belt steering apparatus. (3) The exiting slab is contained and supported downstream from the casting machine to prevent bulging of the shell of the cast product, and (4) spray cooling is incorporated in the exit containment apparatus for secondary cooling of cast product.

  4. Warm exo-Zodi from cool exo-Kuiper belts: the significance of P-R drag and the inference of intervening planets

    E-Print Network [OSTI]

    Kennedy, Grant M

    2015-01-01T23:59:59.000Z

    Poynting-Robertson drag has been considered an ineffective mechanism for delivering dust to regions interior to the cool Kuiper belt analogues seen around other Sun-like stars. This conclusion is however based on the very large contrast in dust optical depth between the parent belt and the interior regions that results from the dominance of collisions over drag in systems with detectable cool belts. Here, we show that the levels of habitable zone dust arising from detectable Kuiper belt analogues can be tens to a few hundreds of times greater than the optical depth in the Solar Zodiacal cloud. Dust enhancements of more than a few tens of `zodi' are expected to hinder future Earth-imaging missions, but relatively few undetectable Kuiper belts result in such levels, particularly around stars older than a few Gyr. Thus, current mid to far-IR photometric surveys have already identified most of the 20-25% of nearby stars where P-R drag from outer belts could seriously impact Earth-imaging. The LBTI should easily d...

  5. Applications of mineral carbonation to geological sequestration of CO2

    SciTech Connect (OSTI)

    O'Connor, William K.; Rush, G.E.

    2005-01-01T23:59:59.000Z

    Geological sequestration of CO2 is a promising near-term sequestration methodology. However, migration of the CO2 beyond the natural reservoir seals could become problematic, thus the identification of means to enhance the natural seals could prove beneficial. Injection of a mineral reactant slurry could provide a means to enhance the natural reservoir seals by supplying the necessary cations for precipitation of mineral carbonates. The subject study evaluates the merit of several mineral slurry injection strategies by conduct of a series of laboratory-scale CO2 flood tests on whole core samples of the Mt. Simon sandstone from the Illinois Basin.

  6. A CHANGE IN THE LIGHT CURVE OF KUIPER BELT CONTACT BINARY (139775) 2001 QG{sub 298}

    SciTech Connect (OSTI)

    Lacerda, Pedro, E-mail: p.lacerda@qub.ac.uk [Astrophysics Research Centre, Queen's University Belfast, Belfast BT7 1NN (United Kingdom)

    2011-09-15T23:59:59.000Z

    New observations show that the light curve of Kuiper Belt contact binary (139775) 2001 QG{sub 298} has changed substantially since the first observations in 2003. The 2010 light curve has a peak-to-peak photometric range of {Delta}m{sub 2010} = 0.7 {+-} 0.1 mag, significantly lower than in 2003, {Delta}m{sub 2003} = 1.14 {+-} 0.04 mag. This change is most simply interpreted if 2001 QG{sub 298} has an obliquity near 90{sup 0}. The observed decrease in {Delta}m is caused by a change in viewing geometry, from equator-on in 2003 to nearly 16{sup 0} (the orbital angular distance covered by the object between the observations) off the equator in 2010. The 2003 and 2010 light curves have the same rotation period and appear in phase when shifted by an integer number of full rotations, also consistent with high obliquity. Based on the new 2010 light curve data, we find that 2001 QG{sub 298} has an obliquity of {epsilon} = 90{sup 0} {+-} 30{sup 0}. Current estimates of the intrinsic fraction of contact binaries in the Kuiper Belt are debiased assuming that these objects have randomly oriented spins. If, as 2001 QG2{sub 98}, Kuiper Belt Object contact binaries tend to have large obliquities, a larger correction is required. As a result, the abundance of contact binaries may be larger than previously believed.

  7. SkyMine Carbon Mineralization Pilot Project

    SciTech Connect (OSTI)

    Joe Jones; Clive Barton; Mark Clayton; Al Yablonsky; David Legere

    2010-09-30T23:59:59.000Z

    This Topical Report addresses accomplishments achieved during Phase 1 of the SkyMine{reg_sign} Carbon Mineralization Pilot Project. The primary objectives of this project are to design, construct, and operate a system to capture CO{sub 2} from a slipstream of flue gas from a commercial coal-fired cement kiln, convert that CO{sub 2} to products having commercial value (i.e., beneficial use), show the economic viability of the CO{sub 2} capture and conversion process, and thereby advance the technology to a point of readiness for commercial scale demonstration and proliferation. The project will also substantiate market opportunities for the technology by sales of chemicals into existing markets, and identify opportunities to improve technology performance and reduce costs at commercial scale. The primary objectives of Phase 1 of the project were to elaborate proven SkyMine{reg_sign} process chemistry to commercial pilot-scale operation and complete the preliminary design ('Reference Plant Design') for the pilot plant to be built and operated in Phase 2. Additionally, during Phase 1, information necessary to inform a DOE determination regarding NEPA requirements for the project was developed, and a comprehensive carbon lifecycle analysis was completed. These items were included in the formal application for funding under Phase 2. All Phase 1 objectives were successfully met on schedule and within budget.

  8. Integrating Steel Production with Mineral Carbon Sequestration

    SciTech Connect (OSTI)

    Klaus Lackner; Paul Doby; Tuncel Yegulalp; Samuel Krevor; Christopher Graves

    2008-05-01T23:59:59.000Z

    The objectives of the project were (i) to develop a combination iron oxide production and carbon sequestration plant that will use serpentine ores as the source of iron and the extraction tailings as the storage element for CO2 disposal, (ii) the identification of locations within the US where this process may be implemented and (iii) to create a standardized process to characterize the serpentine deposits in terms of carbon disposal capacity and iron and steel production capacity. The first objective was not accomplished. The research failed to identify a technique to accelerate direct aqueous mineral carbonation, the limiting step in the integration of steel production and carbon sequestration. Objective (ii) was accomplished. It was found that the sequestration potential of the ultramafic resource surfaces in the US and Puerto Rico is approximately 4,647 Gt of CO2 or over 500 years of current US production of CO2. Lastly, a computer model was developed to investigate the impact of various system parameters (recoveries and efficiencies and capacities of different system components) and serpentinite quality as well as incorporation of CO2 from sources outside the steel industry.

  9. A Search for Subkilometer-sized Ordinary Chondrite Like Asteroids in the Main-Belt

    E-Print Network [OSTI]

    Lin, H W; Chen, Y T; Ip, W H; Chang, C K

    2015-01-01T23:59:59.000Z

    The size-dependent effects of asteroids on surface regolith and collisional lifetimes suggest that small asteroids are younger than large asteroids. In this study, we performed multicolor main-belt asteroid (MBA) survey by Subaru telescope/Suprime-Cam to search for subkilometer-sized ordinary chondrite (Q-type) like MBAs. The total survey area was 1.5 deg^2 near ecliptic plane and close to the opposition. We detected 150 MBAs with 4 bands (B, V , R, I) in this survey. The range of absolute magnitude of detected asteroids was between 13 and 22 magnitude, which is equivalent to the size range of kilometer to sub-kilometer diameter in MBAs. From this observation, 75 of 150 MBAs with color uncertainty less than 0.1 were used in the spectral type analysis, and two possible Q-type aster- oids were detected. This mean that the Q-type to S-type ratio in MBAs is 0.5 to 2 (Binzel et al., 2004; Dandy et al., 2003). Therefore, Q-t...

  10. The JCMT Gould Belt Survey: SCUBA-2 observations of circumstellar disks in L 1495

    E-Print Network [OSTI]

    Buckle, J V; Greaves, J; Richer, J S; Matthews, B C; Johnstone, D; Kirk, H; Beaulieu, S F; Berry, D S; Broekhoven-Fiene, H; Currie, M J; Fich, M; Hatchell, J; Jenness, T; Mottram, J C; Nutter, D; Pattle, K; Pineda, J E; Salji, C; Tisi, S; Di Francesco, J; Hogerheijde, M R; Ward-Thompson, D; Bastien, P; Butner, H; Chen, M; Chrysostomou, A; Coude, S; Davis, C J; Duarte-Cabral, A; Friberg, P; Friesen, R; Fuller, G A; Graves, S; Gregson, J; Holland, W; Joncas, G; Kirk, J M; Knee, L B G; Mairs, S; Marsh, K; Moriarty-Schieven, G; Rawlings, J; Rosolowsky, E; Rumble, D; Sadavoy, S; Thomas, H; Tothill, N; Viti, S; White, G J; Wilson, C D; Wouterloot, J; Yates, J; Zhu, M

    2015-01-01T23:59:59.000Z

    We present 850$\\mu$m and 450$\\mu$m data from the JCMT Gould Belt Survey obtained with SCUBA-2 and characterise the dust attributes of Class I, Class II and Class III disk sources in L1495. We detect 23% of the sample at both wavelengths, with the detection rate decreasing through the Classes from I--III. The median disk mask is 1.6$\\times 10^{-3}$M$_{\\odot}$, and only 7% of Class II sources have disk masses larger than 20 Jupiter masses. We detect a higher proportion of disks towards sources with stellar hosts of spectral type K than spectral type M. Class II disks with single stellar hosts of spectral type K have higher masses than those of spectral type M, supporting the hypothesis that higher mass stars have more massive disks. Variations in disk masses calculated at the two wavelengths suggests there may be differences in dust opacity and/or dust temperature between disks with hosts of spectral types K to those with spectral type M.

  11. ON A POSSIBLE SIZE/COLOR RELATIONSHIP IN THE KUIPER BELT

    SciTech Connect (OSTI)

    Pike, R. E.; Kavelaars, J. J., E-mail: repike@uvic.ca [Department of Physics and Astronomy, University of Victoria, Victoria, BC V8W 3P6 (Canada)

    2013-10-01T23:59:59.000Z

    Color measurements and albedo distributions introduce non-intuitive observational biases in size-color relationships among Kuiper Belt Objects (KBOs) that cannot be disentangled without a well characterized sample population with systematic photometry. Peixinho et al. report that the form of the KBO color distribution varies with absolute magnitude, H. However, Tegler et al. find that KBO color distributions are a property of object classification. We construct synthetic models of observed KBO colors based on two B-R color distribution scenarios: color distribution dependent on H magnitude (H-Model) and color distribution based on object classification (Class-Model). These synthetic B-R color distributions were modified to account for observational flux biases. We compare our synthetic B-R distributions to the observed ''Hot'' and ''Cold'' detected objects from the Canada-France Ecliptic Plane Survey and the Meudon Multicolor Survey. For both surveys, the Hot population color distribution rejects the H-Model, but is well described by the Class-Model. The Cold objects reject the H-Model, but the Class-Model (while not statistically rejected) also does not provide a compelling match for data. Although we formally reject models where the structure of the color distribution is a strong function of H magnitude, we also do not find that a simple dependence of color distribution on orbit classification is sufficient to describe the color distribution of classical KBOs.

  12. Properties of the Trans-Neptunian Belt: Statistics From the CFHT Survey

    E-Print Network [OSTI]

    Chadwick A. Trujillo; David C. Jewitt; Jane X. Luu

    2001-05-07T23:59:59.000Z

    We present the results of a wide-field survey designed to measure the size, inclination, and radial distributions of Kuiper Belt Objects (KBOs). The survey found 86 KBOs in 73 square degrees observed to limiting red magnitude 23.7 using the Canada-France-Hawaii Telescope and the 12k x 8k CCD Mosaic camera. For the first time, both ecliptic and off-ecliptic fields were examined to more accurately constrain the inclination distribution of the KBOs. The survey data were processed using an automatic moving object detection algorithm, allowing a careful characterization of the biases involved. In this work, we quantify fundamental parameters of the Classical KBOs (CKBOs), the most numerous objects found in our sample, using the new data and a maximum likelihood simulation. Deriving results from our best-fit model, we find that the size distribution follows a differential power law with exponent q = 4.0 (+0.6)(-0.5) (1 sigma, or 68.27% confidence). In addition, the CKBOs inhabit a very thick disk consistent with a Gaussian distribution of inclinations with a Half-Width of i(1/2) = 20 (+6)(-4) deg (1 sigma). We estimate that there are N = 3.8 (+2.0)(-1.5) x 10^4 (1 sigma) CKBOs larger than 100 km in diameter. We also find compelling evidence for an outer edge to the CKBOs at heliocentric distance R = 50 AU.

  13. Simulating the Heterogeneity in Braided Channel Belt Deposits: 2. Examples of Results and Comparison to Natural Deposits

    SciTech Connect (OSTI)

    Guin, Arijit; Ramanathan, Ramya; Ritzi, Robert W.; Dominic, David F.; Lunt, Ian A.; Scheibe, Timothy D.; Freedman, Vicky L.

    2010-04-29T23:59:59.000Z

    In Part 1 of this series we presented a methodology and a code for modeling the hierarchical sedimentary architecture in braided channel belt deposits. Here, in Part 2, the code was used to create a digital model of this architecture, and the corresponding spatial distribution of permeability. The simulated architecture was compared to the real stratal architecture observed in an abandoned channel belt of the Sagavanirktok River, Alaska by Lunt et al. (2004). The comparisons included assessments of similarity which were both qualitative and quantitative. From the qualitative comparisons we conclude that a synthetic deposit created by the code has unit types, at each level, with a geometry which is generally consistent with the geometry of unit types observed in the field. The digital unit types would generally be recognized as representing their counterparts in nature, including cross stratasets, lobate and scroll bar deposits, channel fills, etc. Furthermore, the synthetic deposit has a hierarchical spatial relationship among these units which represents how the unit types are observed in field exposures and in geophysical images. In quantitative comparisons the proportions and the length, width, and height of unit types at different scales, across all levels of the stratal hierarchy compare well between the digital and the natural deposits. A number of important attributes of the channel belt model were shown to be influenced by more than one level within the hierarchy of stratal architecture. First, the high-permeability open-framework gravels percolated at all levels and thus formed preferential flow pathways. Open framework gravels are indeed known to form preferential flow pathways in natural channel belt deposits. The nature of a percolating cluster changed across different levels of the hierarchy of stratal architecture. As a result of this geologic structure, the percolation occurs at proportions of open-framework gravels below the theoretical percolation threshold for random infinite media. Second, when the channel belt model was populated with permeability distributions by lowest-level unit type, the composite permeability semivariogram contained structures that were identifiable at more than one scale, and each of these structures could be directly linked to unit types of different scales existing at different levels within the hierarchy of strata. These collective results are encouraging with respect to our goal that this model be relevant as a base case in future studies for testing ideas in research addressing the upscaling problem in aquifers and reservoirs with multi-scale heterogeneity.

  14. aqueous mineral carbonation: Topics by E-print Network

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

    of1 coal combustion fly-ash2 3 G. Montes that could possibly4 contribute to reducing carbon dioxide emissions is the in-situ mineral sequestration (long term5 geological...

  15. Select Minerals and Potable Use of Reclaimed Wastewaters

    E-Print Network [OSTI]

    Wolf, H.

    The long-observed relationships of an influence of drinking water mineral content on heart-circulatory deaths are developed to indicate that sodium -- when present in sufficiently high concentrations -- may be detrimental to human health...

  16. Immersion freezing of clay minerals and bacterial ice nuclei

    E-Print Network [OSTI]

    Hiranuma, Naruki

    2013-01-01T23:59:59.000Z

    The immersion mode ice nucleation efficiency of clay minerals and biological aerosols has been investigated using the AIDA (Aerosol Interaction and Dynamics in the Atmosphere) cloud chamber. Both monodisperse and polydisperse ...

  17. An Overview of Hydrothermal Alteration and Vein Mineralization...

    Open Energy Info (EERE)

    Vein Mineralization in Continental Scientific Drilling Program Core Hole VC-2B, Valles Caldera, New Mexico Jump to: navigation, search OpenEI Reference LibraryAdd to library...

  18. LipidMiner: A Software for Automated Identification and Quantification...

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

    LipidMiner also only processes file formats generated from mass spectrometers from Thermo, i.e. the .RAW format. In the future, we are planning to accommodate file formats...

  19. Climate VISION: Private Sector Initiatives: Minerals: GHG Information

    Office of Scientific and Technical Information (OSTI)

    GHG Information Read the Industrial Minerals Association - North America (IMA-NA) 2011 Greenhouse Gas and Energy Survey Industry Summary for the period from 2000 to 2010 (PDF 16...

  20. and J. Selverstone, Contrib. Mineral. Petrol. 83, 348 (1982); (19)].

    E-Print Network [OSTI]

    Bermingham, Eldredge

    1982-01-01T23:59:59.000Z

    and J. Selverstone, Contrib. Mineral. Petrol. 83, 348 (1982); (19)]. 16. C. R. Vyhnal and C. P. Petrol. 132, 371 (1998); J. L. M. van Haren, J. J. Ague, D. M. Rye, Geochim. Cosmochim. Acta 60, 3487

  1. A Review Of Water Contents Of Nominally Anhydrous Natural Minerals...

    Open Energy Info (EERE)

    navigation, search OpenEI Reference LibraryAdd to library Journal Article: A Review Of Water Contents Of Nominally Anhydrous Natural Minerals In The Mantles Of Earth, Mars And The...

  2. Net receipts sharing and transfer of federal mineral responsibilities

    SciTech Connect (OSTI)

    McCannon, S. (Colorado Dept. of Natural Resources, Denver, CO (United States))

    1992-12-01T23:59:59.000Z

    Two interrelated issues - the policy of net receipt sharing and the [open quotes]Mineral Royalty Transfer Study[close quotes] that was submitted to Congress in June of this year by the Minerals Management Service of the Department of Interior are discussed. The 1993 Interior Appropriations Act, P.L. 102-381, which was signed by the president on October 5, 1992, includes a provision that, in addition to costing states $37.5 million has a few other problems: It may be illegal, it flies in the face of the Mineral Leasing Act, it sets a frightening precedent, it is bad public policy and it ignores the substantial contribution of states to federal mineral development. This provision is known as net receipt sharing. The advantages and disadvantages of this Act are discussed.

  3. A NOVEL APPROACH TO MINERAL CARBONATION: ENHANCING CARBONATION WHILE AVOIDING MINERAL PRETREATMENT PROCESS COST

    SciTech Connect (OSTI)

    Michael J. McKelvy; Andrew V.G. Chizmeshya; Kyle Squires; Ray W. Carpenter; Hamadallah Bearat

    2005-10-01T23:59:59.000Z

    Known fossil fuel reserves, especially coal, can support global energy demands for centuries to come, if the environmental problems associated with CO{sub 2} emissions can be overcome. Unlike other CO{sub 2} sequestration candidate technologies that propose long-term storage, mineral sequestration provides permanent disposal by forming geologically stable mineral carbonates. Carbonation of the widely occurring mineral olivine (e.g., forsterite, Mg{sub 2}SiO{sub 4}) is a large-scale sequestration process candidate for regional implementation, which converts CO{sub 2} into the environmentally benign mineral magnesite (MgCO{sub 3}). The primary goal is cost-competitive process development. As the process is exothermic, it inherently offers low-cost potential. Enhancing carbonation reactivity is key to economic viability. Recent studies at the U.S. DOE Albany Research Center have established that aqueous-solution carbonation using supercritical CO{sub 2} is a promising process; even without olivine activation, 30-50% carbonation has been achieved in an hour. Mechanical activation (e.g., attrition) has accelerated the carbonation process to an industrial timescale (i.e., near completion in less than an hour), at reduced pressure and temperature. However, the activation cost is too high to be economical and lower cost pretreatment options are needed. Herein, we report our first year progress in exploring a novel approach that offers the potential to substantially enhance carbonation reactivity while bypassing pretreatment activation. We have discovered that robust silica-rich passivating layers form on the olivine surface during carbonation. As carbonation proceeds, these passivating layers thicken, fracture and eventually exfoliate, exposing fresh olivine surfaces during rapidly-stirred/circulating carbonation. We are exploring the mechanisms that govern carbonation reactivity and the impact that (1) modeling/controlling the slurry fluid-flow conditions, (2) varying the aqueous ion species/size and concentration (e.g., Li{sup +}, Na{sup +}, K{sup +}, Rb{sup +}, Cl{sup -}, HCO{sub 3}{sup -}), and (3) incorporating select sonication offer to enhance exfoliation and carbonation. Thus far, we have succeeded in nearly doubling the extent of carbonation observed compared with the optimum procedure previously developed by the Albany Research Center. Aqueous carbonation reactivity was found to be a strong function of the ionic species present and their aqueous activities, as well as the slurry fluid flow conditions incorporated. Synergistic control of these parameters offers the potential for further improvements in carbonation reactivity. A new sonication exfoliation system incorporating a novel sealing system was developed to carry out the sonication studies. Our initial studies that incorporate controlled sonication have not yet lead to a significant improvement in the extent of carbonation observed. Year 2 studies will emphasize those approaches that offer the greatest potential to cost effectively enhance carbonation, as well as combined approaches that may further enhance carbonation. Mechanistic investigations indicate incongruent dissolution results in the observed silica-rich passivating layer formation. Observations of magnesite nanocrystals within the passivating layers that form indicate the layers can exhibit significant permeability to the key reactants present (e.g., Mg{sup 2+}, H{sup +}, H{sub 2}O, CO{sub 2}, and HCO{sub 3} -). Atomistic modeling supports the observation of robust passivating layers that retain significant permeability to the key reaction species involved. Studies in Year 2 will emphasize the impact that controlled aqueous speciation and activity and slurry-flow dynamics have on the mechanisms that control carbonation reactivity and the potential they offer to substantially reduce olivine mineral sequestration process cost.

  4. Hydrothermal Phase Relations Among Uranyl Minerals at the Nopal I Analog Site

    SciTech Connect (OSTI)

    Murphy, William M. [Geological and Environmental Sciences, California State University, Chico, CA, 95929 (United States)

    2007-07-01T23:59:59.000Z

    Uranyl mineral paragenesis at Nopal I is an analog of spent fuel alteration at Yucca Mountain. Petrographic studies suggest a variety of possible hydrothermal conditions for uranium mineralization at Nopal I. Calculated equilibrium phase relations among uranyl minerals show uranophane stability over a broad range of realistic conditions and indicate that uranyl mineral variety reflects persistent chemical potential heterogeneity. (author)

  5. U.S. GEOLOGICAL SURVEY--MINERALS INFORMATION 1 ZIRCONIUM AND HAFNIUM

    E-Print Network [OSTI]

    U.S. GEOLOGICAL SURVEY--MINERALS INFORMATION 1 ZIRCONIUM AND HAFNIUM By Joseph Gambogi Zirconium at crust; however, zircon is the primary naturally occurring mineral the Old Hickory deposit south of the mining and processing zircon (Mineral Sands Report, 1997b). of heavy-mineral sands for the titanium

  6. The mineral nature of asbestos Malcolm Ross a,*, Arthur M. Langer a

    E-Print Network [OSTI]

    Ahmad, Sajjad

    The mineral nature of asbestos Malcolm Ross a,*, Arthur M. Langer a , Gordon L. Nord a , Robert P Received 13 September 2007 Available online 1 October 2007 Abstract Fibrous minerals are common in nature but asbestiform minerals are rare. The unique mineralogical characteristic common to all the asbestos minerals

  7. cAnt-Miner: An Ant Colony Classification Algorithm to Cope with Continuous Attributes

    E-Print Network [OSTI]

    Heinke, Dietmar

    cAnt-Miner: An Ant Colony Classification Algorithm to Cope with Continuous Attributes Fernando E. B {febo2,A.A.Freitas,C.G.Johnson}@kent.ac.uk Abstract. This paper presents an extension to Ant-Miner, named cAnt- Miner (Ant-Miner coping with continuous attributes), which incorpo- rates an entropy

  8. V-Miner: Using Enhanced Parallel Coordinates to Mine Product Design and Test Data 1

    E-Print Network [OSTI]

    Liu, Bing

    V-Miner: Using Enhanced Parallel Coordinates to Mine Product Design and Test Data 1 Kaidi Zhao patterns can be easily detected visually. The Visual Miner (V-Miner) software includes both automated or data mining. This paper begins with an introduction to the proposed techniques and the V-Miner system

  9. GEOL 103 Writing Assignment 1. Minerals Key 1. What's a cation? Anion?

    E-Print Network [OSTI]

    Kirby, Carl S.

    GEOL 103 Writing Assignment 1. Minerals Key 1. What's a cation? Anion? A cation is a charged atom material. 5. What kinds of evidence tell us about the internal structure of minerals? How does the cleavage. Cleavage planes in minerals are planes of relatively weaker bonds that allow minerals to preferentially

  10. PTYS 109 LAB EXPLORATION AND DISCOVERY IN PLANETARY SCIENCE ROCKS AND MINERALS 133

    E-Print Network [OSTI]

    Cohen, Barbara Anne

    PTYS 109 LAB EXPLORATION AND DISCOVERY IN PLANETARY SCIENCE ROCKS AND MINERALS 133 Rocks and Minerals I. OBJECTIVES One of the many ways to study Earth is by examining the rocks that make up its types of rocks and minerals; · determine the formation and the history of each rock and mineral; · infer

  11. ORIGINAL RESEARCH Minerals Form a Continuum Phase in Mature Cancellous Bone

    E-Print Network [OSTI]

    Price, Paul A.

    ORIGINAL RESEARCH Minerals Form a Continuum Phase in Mature Cancellous Bone Po-Yu Chen · Damon the hierarchical structure of mineral in mature bone. A method to completely deproteinize bone without altering of mineral and protein constituents. SEM revealed that bone minerals are fused together and form a sheet

  12. Soil Interfaces in a Changing World International Symposium of Interactions of Soil Minerals with

    E-Print Network [OSTI]

    Sparks, Donald L.

    Minerals with Organic Components and Microorganisms 3rd InterCongress of Commission 2.5 IUSS Soil chemical at Carbon/Mineral and Metal(loid)/Mineral Interfaces Donald L. Sparks, Chunmei Chen, Peter Leinweber, Matt to investigate biogeochemical processes at mineral/microbe interfaces that involve nutrients such as C, N, and P

  13. INFLUENCE OF TEMPERATURE ON NICKEL SORPTION ON CLAY MINERAL AND OXIDE SURFACES. K. G. Scheckel1

    E-Print Network [OSTI]

    Sparks, Donald L.

    INFLUENCE OF TEMPERATURE ON NICKEL SORPTION ON CLAY MINERAL AND OXIDE SURFACES. K. G. Scheckel1- ues are within the range of mineral formation which sup- ports previous findings of nickel precipitation on these mineral and oxide surfaces. Conclusions: Sorption of nickel on the mineral phases results

  14. Running Head: Correlation of Microbial Communities with Caclium Carbonate1 (Travertine) Mineral Precipitation2

    E-Print Network [OSTI]

    Goldenfeld, Nigel

    Precipitation2 3 4 Correlation of Microbial Communities with Calcium Carbonate (Travertine)5 Mineral of changing environmental conditions and associated calcium carbonate mineral18 precipitation along the spring and morphology of calcium carbonate mineral precipitation.3 Carbonate minerals are ideal for this type of study

  15. A Novel Approach to Mineral Carbonation: Enhancing Carbonation While Avoiding Mineral Pretreatment Process Cost

    SciTech Connect (OSTI)

    Andrew V. G. Chizmeshya; Michael J. McKelvy; Kyle Squires; Ray W. Carpenter; Hamdallah Bearat

    2007-06-21T23:59:59.000Z

    Known fossil fuel reserves, especially coal, can support global energy demands for centuries to come, if the environmental problems associated with CO{sub 2} emissions can be overcome. Unlike other CO{sub 2} sequestration candidate technologies that propose long-term storage, mineral sequestration provides permanent disposal by forming geologically stable mineral carbonates. Carbonation of the widely occurring mineral olivine (e.g., forsterite, Mg{sub 2}SiO{sub 4}) is a large-scale sequestration process candidate for regional implementation, which converts CO{sub 2} into the environmentally benign mineral magnesite (MgCO{sub 3}). The primary goal is cost-competitive process development. As the process is exothermic, it inherently offers low-cost potential. Enhancing carbonation reactivity is key to economic viability. Recent studies at the U.S. DOE Albany Research Center have established that aqueous-solution carbonation using supercritical CO{sub 2} is a promising process; even without olivine activation, 30-50% carbonation has been achieved in an hour. Mechanical activation (e.g., attrition) has accelerated the carbonation process to an industrial timescale (i.e., near completion in less than an hour), at reduced pressure and temperature. However, the activation cost is too high to be economical and lower cost pretreatment options are needed. We have discovered that robust silica-rich passivating layers form on the olivine surface during carbonation. As carbonation proceeds, these passivating layers thicken, fracture and eventually exfoliate, exposing fresh olivine surfaces during rapidly-stirred/circulating carbonation. We are exploring the mechanisms that govern carbonation reactivity and the impact that (1) modeling/controlling the slurry fluid-flow conditions, (2) varying the aqueous ion species/size and concentration (e.g., Li+, Na+, K+, Rb+, Cl-, HCO{sub 3}{sup -}), and (3) incorporating select sonication offer to enhance exfoliation and carbonation. Thus far, we have succeeded in nearly doubling the extent of carbonation observed compared with the optimum procedure previously developed by the Albany Research Center. Aqueous carbonation reactivity was found to be a strong function of the ionic species present and their aqueous activities, as well as the slurry fluid flow conditions incorporated. High concentration sodium, potassium, and sodium/potassium bicarbonate aqueous solutions have been found to be the most effective solutions for enhancing aqueous olivine carbonation to date. Slurry-flow modeling using Fluent indicates that the slurry-flow dynamics are a strong function of particle size and mass, suggesting that controlling these parameters may offer substantial potential to enhance carbonation. During the first project year we developed a new sonication exfoliation apparatus with a novel sealing system to carry out the sonication studies. We also initiated investigations to explore the potential that sonication may offer to enhance carbonation reactivity. During the second project year, we extended our investigations of the effects of sonication on the extent of carbonation as a function of the following parameters: particle size distribution, the mass of solid reactant, volume fraction of aqueous solution present, sonication power, time, temperature, and CO{sub 2} pressure. To date, none of the conditions investigated have significantly enhanced carbonation. Mechanistic investigations of the stirred ({approx}1,500 rpm) aqueous olivine carbonation process indicate the carbonation process involves both incongruent magnesium dissolution and silica precipitation, which results in robust silica-rich passivating layer formation. Secondary ion mass spectrometry observation of H within the passivating layer that forms during static carbonation suggests 2H{sup +}/Mg{sup 2+} ion exchange is associated with incongruent dissolution. Apparently, H{sub 2}O forms at or near the olivine/passivating-layer interface during the process and diffuses out through the passivating layers during the carbonation reaction. This is

  16. A Novel Approach To Mineral Carbonation: Enhancing Carbonation While Avoiding Mineral Pretreatment Process Cost

    SciTech Connect (OSTI)

    Michael J. McKelvy; Andrew V. G. Chizmeshya; Kyle Squires; Ray W. Carpenter; Hamdallah Bearat

    2006-06-21T23:59:59.000Z

    Known fossil fuel reserves, especially coal, can support global energy demands for centuries to come, if the environmental problems associated with CO{sub 2} emissions can be overcome. Unlike other CO{sub 2} sequestration candidate technologies that propose long-term storage, mineral sequestration provides permanent disposal by forming geologically stable mineral carbonates. Carbonation of the widely occurring mineral olivine (e.g., forsterite, Mg{sub 2}SiO{sub 4}) is a large-scale sequestration process candidate for regional implementation, which converts CO{sub 2} into the environmentally benign mineral magnesite (MgCO{sub 3}). The primary goal is cost-competitive process development. As the process is exothermic, it inherently offers low-cost potential. Enhancing carbonation reactivity is key to economic viability. Recent studies at the U.S. DOE Albany Research Center have established that aqueous-solution carbonation using supercritical CO{sub 2} is a promising process; even without olivine activation, 30-50% carbonation has been achieved in an hour. Mechanical activation (e.g., attrition) has accelerated the carbonation process to an industrial timescale (i.e., near completion in less than an hour), at reduced pressure and temperature. However, the activation cost is too high to be economical and lower cost pretreatment options are needed. Herein, we report our second year progress in exploring a novel approach that offers the potential to substantially enhance carbonation reactivity while bypassing pretreatment activation. As our second year progress is intimately related to our earlier work, the report is presented in that context to provide better overall understanding of the progress made. We have discovered that robust silica-rich passivating layers form on the olivine surface during carbonation. As carbonation proceeds, these passivating layers thicken, fracture and eventually exfoliate, exposing fresh olivine surfaces during rapidly-stirred/circulating carbonation. We are exploring the mechanisms that govern carbonation reactivity and the impact that (i) modeling/controlling the slurry fluid-flow conditions, (ii) varying the aqueous ion species/size and concentration (e.g., Li{sup +}, Na{sup +}, K{sup +}, Rb{sup +}, Cl{sup -}, HCO{sub 3}{sup -}), and (iii) incorporating select sonication offer to enhance exfoliation and carbonation. We have succeeded in nearly doubling the extent of carbonation observed compared with the optimum procedure previously developed by the Albany Research Center. Aqueous carbonation reactivity was found to be a strong function of the ionic species present and their aqueous activities, as well as the slurry fluid flow conditions incorporated. High concentration sodium, potassium, and sodium/potassium bicarbonate aqueous solutions have been found to be the most effective solutions for enhancing aqueous olivine carbonation to date. Slurry-flow modeling using Fluent indicates that the slurry-flow dynamics are a strong function of particle size and mass, suggesting that controlling these parameters may offer substantial potential to enhance carbonation. Synergistic control of the slurry-flow and aqueous chemistry parameters offers further potential to improve carbonation reactivity, which is being investigated during the no-cost extension period. During the first project year we developed a new sonication exfoliation system with a novel sealing system to carry out the sonication studies. We also initiated(Abstract truncated).

  17. Lung cancer mortality among U. S. uranium miners: a reappraisal

    SciTech Connect (OSTI)

    Whittemore, A.S.; McMillan, A.

    1983-09-01T23:59:59.000Z

    This report examines lung cancer mortality among a cohort of white underground uranium miners in the Colorado plateau and is based on mortality follow-up through December 31, 1977. The analytic methods represent a miner's annual age-specific lung cancer mortality rate as the (unspecified) rate among nonsmoking men born at the same time and with no mining history, multiplied by the relative risk factor R. This factor depends on the miner's total exposures to radon daughters (in working level months (WLM) and to cigarettes (in packs), accumulated from start of exposure until 10 years before his current age. Among those examined, the relative risk function giving the highest likelihood of the data was R . (1 + 0.31 X 10(-/sup 2/) WLM)(1 + 0.51 X 10(-/sup 3/) packs). This multiplicative function specifies that ratios of mortality rates for miners versus nonminers with similar age and smoking characteristics do not depend on smoking status. By contrast, differences between miners' and nonminers' mortality rates are substantially higher for smokers than for nonsmokers. The data rejected (P . .01) several additive functions for R that specify relative risk as a sum of components due to radiation and to cigarette smoking. Cumulative exposures to both radiation and cigarettes gave better fits to the data than did average annual exposure rates. Age at start of underground mining had no effect on risk, after controlling for age at lung cancer death, year of birth, and cumulative radiation and smoking exposures.

  18. Evaluation of SRAT Sampling Data in Support of a Six Sigma Yellow Belt Process Improvement Project

    SciTech Connect (OSTI)

    Edwards, Thomas B.

    2005-06-01T23:59:59.000Z

    As part of the Six Sigma continuous improvement initiatives at the Defense Waste Processing Facility (DWPF), a Yellow Belt team was formed to evaluate the frequency and types of samples required for the Sludge Receipt and Adjustment Tank (SRAT) receipt in the DWPF. The team asked, via a technical task request, that the Statistical Consulting Section (SCS), in concert with the Immobilization Technology Section (ITS) (both groups within the Savannah River National Laboratory (SRNL)), conduct a statistical review of recent SRAT receipt results to determine if there is enough consistency in these measurements to allow for less frequent sampling. As part of this review process, key decisions made by DWPF Process Engineering that are based upon the SRAT sample measurements are outlined in this report. For a reduction in SRAT sampling to be viable, these decisions must not be overly sensitive to the additional variation that will be introduced as a result of such a reduction. Measurements from samples of SRAT receipt batches 314 through 323 were reviewed as part of this investigation into the frequency of SRAT sampling. The associated acid calculations for these batches were also studied as part of this effort. The results from this investigation showed no indication of a statistically significant relationship between the tank solids and the acid additions for these batches. One would expect that as the tank solids increase there would be a corresponding increase in acid requirements. There was, however, an indication that the predicted reduction/oxidation (REDOX) ratio (the ratio of Fe{sup 2+} to the total Fe in the glass product) that was targeted by the acid calculations based on the SRAT receipt samples for these batches was on average 0.0253 larger than the predicted REDOX based upon Slurry Mix Evaporator (SME) measurements. This is a statistically significant difference (at the 5% significance level), and the study also suggested that the difference was due to predictions of the formate and Mn concentrations in the SME product that were made at the time of the acid addition in the SRAT. For each of these analytes, the SRAT version was statistically different from the SME version (units are moles/kg SME product slurry): the SRAT values were, on average, 0.0914 larger than the SME values for formate and 0.0089 smaller than the SME values for Mn. A look at the signs of the terms corresponding to these two analytes in equation (2) indicates that both of these differences contribute to the calculated REDOX differences between the SRAT and SME product.

  19. Air Dispersion Modeling of Mine Waste in the Southeast Missouri Old Lead Belt

    SciTech Connect (OSTI)

    Abbott, Michael Lehman

    1999-10-01T23:59:59.000Z

    Past lead ore processing conducted in the Southeast Missouri Old Lead Belt since the 1700s has left numerous large areas of lead contamination in elevated piles of fine gravel waste called “chat” and dried-out tailings ponds. Wind suspension and atmospheric dispersion are known to transport these materials to the surrounding communities where the lead could pose a human health threat through inhalation or ingestion of the deposited contamination. The purpose of this study was to estimate potential wind suspension rates, perform dispersion modeling of the tailings and chat sources, and determine ground surface deposition rates and potential soil concentrations of lead in the surrounding areas. The results can be used to prioritize soil sampling locations, site air monitors, help identify the source of soil lead contamination, and to help develop remediation plans. Numerous, large complex sources in the region were parameterized into 33 area sources with the aid of digital aerial photos, digitized typographic maps, Geographic Information Systems (GIS) software, and site inspections. An AP-42 particulate emission model was used to estimate lower- and upper-bound hourly emission rates using six years of hourly wind speed data obtained from the St. Louis Airport. The emissions model accounted for wind speed, precipitation, source-specific aggregate size, fraction of vegetation cover, and site-specific lead concentrations. An alternative simplified method to calculate emissions from elevated chat piles was developed. The Fugitive Dust Model (FDM) was then used to calculate long-term average and maximum 24-hour deposition rates of lead over a 200 km2 region. Soil concentrations were estimated from modeled deposition rates, time of deposition (80 y) and an assumed surface (0-5.08 cm) mixing depth. Model performance was evaluated by comparing lower- and upper- bound modeled predictions to both air and soil sampling data obtained at two sites. The predicted-to-observed (P/O) ratios calculated using the geometric mean of the lower- and upper-bound modeled concentrations ranged from a low of 0.84 at 300 m to a high of 1.4 at 1800 m, with an average of 1.1. The P/O ratios tended to increase slightly at distances beyond about 1 km. These P/O ratios demonstrate exceptional model performance for the particular sampling transect (location and direction) investigated.

  20. Uranium Sequestration by Aluminum Phosphate Minerals in Unsaturated Soils

    SciTech Connect (OSTI)

    Jerden, James L. Jr. [Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL, 60439 (United States)

    2007-07-01T23:59:59.000Z

    A mineralogical and geochemical study of soils developed from the unmined Coles Hill uranium deposit (Virginia) was undertaken to determine how phosphorous influences the speciation of uranium in an oxidizing soil/saprolite system typical of the eastern United States. This paper presents mineralogical and geochemical results that identify and quantify the processes by which uranium has been sequestered in these soils. It was found that uranium is not leached from the saturated soil zone (saprolites) overlying the deposit due to the formation of a sparingly soluble uranyl phosphate mineral of the meta-autunite group. The concentration of uranium in the saprolites is approximately 1000 mg uranium per kg of saprolite. It was also found that a significant amount of uranium was retained in the unsaturated soil zone overlying uranium-rich saprolites. The uranium concentration in the unsaturated soils is approximately 200 mg uranium per kg of soil (20 times higher than uranium concentrations in similar soils adjacent to the deposit). Mineralogical evidence indicates that uranium in this zone is sequestered by a barium-strontium-calcium aluminum phosphate mineral of the crandallite group (gorceixite). This mineral is intimately inter-grown with iron and manganese oxides that also contain uranium. The amount of uranium associated with both the aluminum phosphates (as much as 1.4 weight percent) has been measured by electron microprobe micro-analyses and the geochemical conditions under which these minerals formed has been studied using thermodynamic reaction path modeling. The geochemical data and modeling results suggest the meta-autunite group minerals present in the saprolites overlying the deposit are unstable in the unsaturated zone soils overlying the deposit due to a decrease in soil pH (down to a pH of 4.5) at depths less than 5 meters below the surface. Mineralogical observations suggest that, once exposed to the unsaturated environment, the meta-autunite group minerals react to form U(VI)- bearing aluminum phosphates. (author)

  1. Iowa State Mining and Mineral Resources Research Institute

    SciTech Connect (OSTI)

    Not Available

    1990-08-01T23:59:59.000Z

    This final report describes the activities of the Iowa State Mining and Mineral Resources Research Institute (ISMMRRI) at Iowa State University for the period July 1, 1989, to June 30, 1990. Activities include research in mining- and mineral-related areas, education and training of scientists and engineers in these fields, administration of the Institute, and cooperative interactions with industry, government agencies, and other research centers. During this period, ISMMRRI has supported research efforts to: (1) Investigate methods of leaching zinc from sphalerite-containing ores. (2) Study the geochemistry and geology of an Archean gold deposit and of a gold-telluride deposit. (3) Enchance how-quality aggregates for use in construction. (4) Pre-clean coal by triboelectric charging in a fluidized-bed. (5) Characterize the crystal/grain alignment during processing of yttrium-barium-copper-perovskite (1-2-3) superconductors. (5) Study the fluid inclusion properties of a fluorite district. (6) Study the impacts of surface mining on community planning. (7) Assess the hydrophobicity of coal and pyrite for beneficiation. (8) Investigate the use of photoacoustic absorption spectroscopy for monitoring unburnt carbon in the exhaust gas from coal-fired boilers. The education and training program continued within the interdepartmental graduate minor in mineral resources includes courses in such areas as mining methods, mineral processing, industrial minerals, extractive metallurgy, coal science and technology, and reclamation of mined land. In addition, ISMMRRI hosted the 3rd International Conference on Processing and Utilization of High-Sulfur Coals in Ames, Iowa. The Institute continues to interact with industry in order to foster increased cooperation between academia and the mining and mineral community.

  2. Electron loss rates from the outer radiation belt caused by the filling of the outer plasmasphere: the calm before the storm

    SciTech Connect (OSTI)

    Borovsky, Joseph E [Los Alamos National Laboratory; Denton, Michael H [LANCASTER UNIV

    2009-01-01T23:59:59.000Z

    Measurements from 7 spacecraft in geosynchronous orbit are analyzed to determine the decay rate of the number density of the outer electron radiation belt prior to the onset of high-speed-stream-driven geomagnetic storms. Superposed-data analysis is used wan(?) a collection of 124 storms. When there is a calm before the storm, the electron number density decays exponentially before the storm with a 3.4-day e-folding time: beginning about 4 days before storm onset, the density decreases from {approx}4x10{sup -4} cm{sup -3} to {approx}1X 10{sup -4} cm{sup -3}. When there is not a calm before the storm, the number-density decay is very smalL The decay in the number density of radiation-belt electrons is believed to be caused by pitch-angle scattering of electrons into the atmospheric loss cone as the outer plasmasphere fills during the calms. While the radiation-belt electron density decreases, the temperature of the electron radiation belt holds approximately constant, indicating that the electron precipitation occurs equally at all energies. Along with the number density decay, the pressure of the outer electron radiation belt decays and the specific entropy increases. From the measured decay rates, the electron flux to the atmosphere is calculated and that flux is 3 orders of magnitude less than thermal fluxes in the magnetosphere, indicating that the radiation-belt pitch-angle scattering is 3 orders weaker than strong diffusion. Energy fluxes into the atmosphere are calculated and found to be insufficient to produce visible airglow.

  3. Mineral Deformation at Earth's Core-Mantle Boundary

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHighandSWPA / SPRA / USACE625Data ShowCDevelopment33.0 8.0MineralMineral

  4. Mineral Deformation at Earth's Core-Mantle Boundary

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated Codes |IsLove Your1 SECTION A. Revised:7, atMineral Deformation atMineral

  5. The dynamical evolution of dwarf planet (136108) Haumea's collisional family: General properties and implications for the trans-Neptunian belt

    E-Print Network [OSTI]

    Lykawka, Patryk Sofia; Mukai, Tadashi; Nakamura, Akiko M

    2011-01-01T23:59:59.000Z

    Recently, the first collisional family was identified in the trans-Neptunian belt. The family consists of Haumea and at least ten other ~100km-sized trans-Neptunian objects (TNOs) located in the region a = 42 - 44.5 AU. In this work, we model the long-term orbital evolution of an ensemble of fragments representing hypothetical post-collision distributions at the time of the family's birth. We consider three distinct scenarios, in which the kinetic energy of dispersed particles were varied such that their mean ejection velocities (veje) were of order 200 m/s, 300 m/s and 400 m/s, respectively. Each simulation considered resulted in collisional families that reproduced that currently observed. The results suggest that 60-75% of the fragments created in the collision will remain in the trans-Neptunian belt, even after 4 Gyr of dynamical evolution. The surviving particles were typically concentrated in wide regions of orbital element space centred on the initial impact location, with their orbits spread across a ...

  6. Heavy mineral distribution in stream sediment of Tapah area, Perak, Malaysia

    SciTech Connect (OSTI)

    Sibon, Mahat Hj [Jabatan Mineral dan Geosains Malaysia, 40000 Shah Alam, Selangor, Malaysia and Program Geologi, Pusat Pengajian Sains Sekitaran dan Sumber Alam, Fakulti Sains dan Teknologi, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor (Malaysia); Jamil, Habibah; Umor, Mohd Rozi [Program Geologi, Pusat Pengajian Sains Sekitaran dan Sumber Alam, Fakulti Sains dan Teknologi, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor (Malaysia); Hassan, Wan Fuad Wan [Jabatan Geologi, Fakulti Sains Universiti Malaya, 50603 Kuala Lumpur (Malaysia)

    2013-11-27T23:59:59.000Z

    This paper aims to provide the overview of occurrence, distribution and origin of the heavy minerals in the study area. A total of 45 selected stream sediment heavy mineral concentrate samples were panned using standard dulangs, dried and separated from other light minerals using bromoform. The heavy minerals were separated into different fractions at different amperes using Frantz Isodynamic magnetic separator. Mineral identification was done using binocular microscope augmented by X-ray diffraction analyses. Mineral abundance data were analysed graphically using triangular diagrams to show their origin. Dominant minerals present in the heavy mineral samples collected are ilmenite, cassiterite, tourmaline, zircon, topaz, and magnetite. The less common minerals, present in trace amounts are hematite, xenotime, allanite, monazite, rutile, anatase, leucoxene, chromite, garnet and olivine. Examination of the heavy mineral assemblage shows that they originated from granite batholiths of the Main Range, Changkat Rembian as well as from the metasedimentary rock in the area. The gold flakes present are found together with cassiterite and topaz indicating that gold originates from the mineralized veins contact-metamorphosed metasedimentary rocks. Almost all samples collected contain cassiterite grains in various amounts. From the mineral assemblage, the source of cassiterite originates from the mineralized quartz veins that cut granitic rocks of Main Range, Changkat Rembian as well as the metasedimentary rock in the area. Greisenized veins containing quartz, mica and tourmaline with the presence of wolframite and arsenopyrite also contribute to the presence of cassiterite in this study area.

  7. 2005 Minerals Yearbook U.S. Department of the Interior

    E-Print Network [OSTI]

    Sector Initiatives: Opportunities Now), a presidential public-private partnership established in 2003 produced by surface and underground mining and from brine. U.S. consumption of minerals and compounds and installing energy efficient burners in the driers has rewarded SVM by increased efficiency and energy savings

  8. 2007 Minerals Yearbook U.S. Department of the Interior

    E-Print Network [OSTI]

    Titanium Initiative whose objective is to develop revolutionary processes for the low-cost extraction of titanium metal from oxide ores. DARPA efforts were aimed at producing high-quality titanium at target costs, and titaniferous slag. Mining of titanium minerals is usually performed using surface methods. Dredging and dry

  9. The semismooth Newton method for multicomponent reactive transport with minerals

    E-Print Network [OSTI]

    Kraeutle, Serge

    is that problems containing CCs (so-called complementarity problems, CPs) are well known in the field of optimization theory. In this field, it is a well known strategy to solve CPs with the semismooth Newton method essential. The article is structured as follows. In Sec. 2.1 we introduce the mineral precipitation

  10. Preliminary conceptual model for mineral evolution in Yucca Mountain

    SciTech Connect (OSTI)

    Duffy, C.J.

    1993-12-01T23:59:59.000Z

    A model is presented for mineral alteration in Yucca Mountain, Nevada, that suggests that the mineral transformations observed there are primarily controlled by the activity of aqueous silica. The rate of these reactions is related to the rate of evolution of the metastable silica polymorphs opal-CT and cristobalite assuming that a{sub SiO{sub 2(aq)}} is fixed at the equilibrium solubility of the most soluble silica polymorph present. The rate equations accurately predict the present depths of disappearance of opal-CT and cristobalite. The rate equations have also been used to predict the extent of future mineral alteration that may result from emplacement of a high-level nuclear waste repository in Yucca Mountain. Relatively small changes in mineralogy are predicted, but these predictions are based on the assumption that emplacement of a repository would not increase the pH of water in Yucca Mountain nor increase its carbonate content. Such changes may significantly increase mineral alteration. Some of the reactions currently occurring in Yucca Mountain consume H{sup +} and CO{sub 3}{sup 2{minus}}. Combining reaction rate models for these reactions with water chemistry data may make it possible to estimate water flux through the basal vitrophyre of the Topopah Spring Member and to help confirm the direction and rate of flow of groundwater in Yucca Mountain.

  11. 2008 Minerals Yearbook U.S. Department of the Interior

    E-Print Network [OSTI]

    ), were 4% higher than those at yearend 2007. Combined inventories of aluminum metal and alloys held2008 Minerals Yearbook U.S. Department of the Interior U.S. Geological Survey ALUMINUM October 2010 #12;Aluminum--2008 5.1 Aluminum By E. lee Bray Domestic survey data and tables were prepared by Paula

  12. 2007 Minerals Yearbook U.S. Department of the Interior

    E-Print Network [OSTI]

    of aluminum metal and alloys held by the London Metal Exchange Ltd. (LME), however, increased by 16%. Primary2007 Minerals Yearbook U.S. Department of the Interior U.S. Geological Survey ALUMINUM May 2010 #12;ALUMINUM--2007 5.1 ALUMINUM By E. Lee Bray Domestic survey data and tables were prepared by Paula R. Neely

  13. CITBA & SAS SAS Enterprise Miner Training-Oct 18 & 19

    E-Print Network [OSTI]

    de Lijser, Peter

    , easy-to-use set of integrated capabilities for creating and sharing insights that can be used to drive for Technometrics, American Statistician, and Journal of the American Statistical Society. He has also served exhaust emission data. André de Waal, PhD, Instructor SAS Enterprise Miner: André was born in South Africa

  14. Mineral balance in juvenile horses in race training

    E-Print Network [OSTI]

    Stephens, Tonya Leigh

    2002-01-01T23:59:59.000Z

    . Total collections of feces and urine were performed on days 0, 64 and 128 of the trial, and mineral absorption and retention were determined. The horses were maintained in a typical race training protocol to mimic the nutritional stresses placed on long...

  15. Contrib Mineral Petrol (2991) 109:10-18 Contributions to

    E-Print Network [OSTI]

    2991-01-01T23:59:59.000Z

    , which is now separated into the Liberian Craton in Africa and the Guyana Shieldofnorthern South America tholeiitic intrusions, including the dyke swarms in Africa, eastern North America and northern SouthCentre, Department of Geology, University of Ottawa, Ottawa, Canada, K1N 6N5 z Canada Centre for Mineral and Energy

  16. Lidar fluorosensing of mineral oil spills on the sea surface

    E-Print Network [OSTI]

    Oldenburg, Carl von Ossietzky Universität

    be discriminated from heavy fuel, and from less harmful substances like fish oil or vegetable oil, Fig. 3, whichLidar fluorosensing of mineral oil spills on the sea surface Theo Hengstermann and Rainer Reuter Airborne .fluorosensor measurements over maritime oil spills show that this method enables a sensitive

  17. Cost Assessment of CO2 Sequestration by Mineral Carbonation 

    E-Print Network [OSTI]

    Yeboah, F. E.; Yegulalp, T. M.; Singh, H.

    2006-01-01T23:59:59.000Z

    Cost Assessment of CO2 Sequestration by Mineral Carbonation Frank E. Yeboah Tuncel M. Yegulalp Harmohindar Singh Research Associate Professor Professor Center for Energy Research... them carbon dioxide (CO 2 ). This paper assesses the cost of sequestering CO 2 produced by a ZEC power plant using solid sequestration process. INTRODUCTION CO 2 is produced when electrical energy is generated using conventional fossil...

  18. 2006 Minerals Yearbook ClaY and Shale

    E-Print Network [OSTI]

    2006 Minerals Yearbook ClaY and Shale U.S. Department of the Interior U.S. Geological Survey January 2008 #12;Clay and Shale--2006 18.1 The amount of clay sold or used by domestic producers in 2006 in 2005 (table 1). Common clay and shale accounted for 59% of the tonnage, and kaolin accounted for 55

  19. Cost Assessment of CO2 Sequestration by Mineral Carbonation

    E-Print Network [OSTI]

    Yeboah, F. E.; Yegulalp, T. M.; Singh, H.

    2006-01-01T23:59:59.000Z

    Cost Assessment of CO2 Sequestration by Mineral Carbonation Frank E. Yeboah Tuncel M. Yegulalp Harmohindar Singh Research Associate Professor Professor Center for Energy Research... them carbon dioxide (CO 2 ). This paper assesses the cost of sequestering CO 2 produced by a ZEC power plant using solid sequestration process. INTRODUCTION CO 2 is produced when electrical energy is generated using conventional fossil...

  20. July 1, 2009 College of Engineering and Mineral Resources

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    in Chemical Engineering Bachelor of Science in Civil Engineering Bachelor of Science in Computer Engineering: chemical engineering; civil and environmental engineering; computer science and electrical engineering102 July 1, 2009 College of Engineering and Mineral Resources Eugene V. Cilento, Ph.D., Dean Warren

  1. January 1, 2007 College of Engineering and Mineral Resources

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    in Chemical Engineering Bachelor of Science in Civil Engineering Bachelor of Science in Computer Engineering programs are administered through seven academic departments: chemical engineering; civil and environmentalJanuary 1, 2007 College of Engineering and Mineral Resources Eugene V. Cilento, Ph.D., Dean Warren

  2. July 1, 2006 College of Engineering and Mineral Resources

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    in Chemical Engineering Bachelor of Science in Civil Engineering Bachelor of Science in Computer Engineering programs are administered through seven academic departments: chemical engineering; civil and environmentalJuly 1, 2006 College of Engineering and Mineral Resources Eugene V. Cilento, Ph.D., Dean Warren R

  3. July 1, 2008 College of Engineering and Mineral Resources

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    in Chemical Engineering Bachelor of Science in Civil Engineering Bachelor of Science in Computer Engineering programs are administered through seven academic departments: chemical engineering; civil and environmental102 July 1, 2008 College of Engineering and Mineral Resources Eugene V. Cilento, Ph.D., Dean Warren

  4. July 1, 2005 College of Engineering and Mineral Resources

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    in Chemical Engineering Bachelor of Science in Civil Engineering Bachelor of Science in Computer Engineering102 July 1, 2005 College of Engineering and Mineral Resources Eugene V. Cilento, Ph.D., Dean Warren for Administration www.cemr.wvu.edu Degrees Offered Bachelor of Science in Aerospace Engineering Bachelor of Science

  5. July 1, 2007 College of Engineering and Mineral Resources

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    in Chemical Engineering Bachelor of Science in Civil Engineering Bachelor of Science in Computer Engineering programs are administered through seven academic departments: chemical engineering; civil and environmentalJuly 1, 2007 College of Engineering and Mineral Resources Eugene V. Cilento, Ph.D., Dean Warren R

  6. Mineral mesopore effects on nitrogenous organic matter Andrew R. Zimmermana,

    E-Print Network [OSTI]

    Chorover, Jon

    as sequestration of pollutants in soils and sediments (Luthy et al., 1997), turnover of natural soil organic carbon that organic matter (OM) may be protected from enzymatic degradation by sequestration within mineral mesopores observations. These results provide a potential mechanism for the selective sequestration and preservation

  7. 2010 Minerals Yearbook U.S. Department of the Interior

    E-Print Network [OSTI]

    of Energy by UT-Battelle, LLC, was developing methods to consolidate new and conventional titanium powders2010 Minerals Yearbook U.S. Department of the Interior U.S. Geological Survey TITANIUM [ADVANCE RELEASE] June 2012 #12;TITANIUM--2010 [ADVANCE RELEASE] 78.1 TITANIUM By Joseph Gambogi Domestic survey

  8. mineral grains pore spaces Subsurface Geology and Resource Exploration

    E-Print Network [OSTI]

    Li, X. Rong

    mineral grains pore spaces Subsurface Geology and Resource Exploration Locating earth resources deals with the exploration for oil, which is important to Louisiana, the Gulf of Mexico area oil (petroleum) and natural gas, that are refined for use as fuels. When sediments are deposited

  9. KING FAHD UNIVERSITY OF PETROLEUM & MINERALS Dhahran, Saudi Arabia

    E-Print Network [OSTI]

    Abu-Khamsin, Sidqi

    Rocks By Dr. Sidqi A. Abu-Khamsin Professor, Department of Petroleum Engineering © Copyright by Dr;1. INTRODUCTION 1.1: The nature of petroleum All chemical compounds found in nature are classified as eitherKING FAHD UNIVERSITY OF PETROLEUM & MINERALS Dhahran, Saudi Arabia Basic Properties of Reservoir

  10. REE MINERALS IN CATALO II, GOIAS, BRASIL Essaid BILAL1

    E-Print Network [OSTI]

    Boyer, Edmond

    , these minerals interact with the fluid surface and lose some of their REE and Ba. The exchange reactions between (cerrado). The most comprehensive study concerned drill-hole C3B1, located at about 175m north of the pipe). The drill first intersected several tens of meters of reddish-yellow clay soil,

  11. 2008 Minerals Yearbook U.S. Department of the Interior

    E-Print Network [OSTI]

    statistics and world tungsten concentrate production for 2008 and the previous 4 years are listed in table 1 for lead in bullets, shot, and other products. Tungsten chemicals are used to make catalysts, corrosion2008 Minerals Yearbook U.S. Department of the Interior U.S. Geological Survey TUNGSTEN October 2010

  12. U.S. Geological Survey China's Growing Appetite for Minerals

    E-Print Network [OSTI]

    , crude 23 1 Tin 32 1 Tungsten 83 1 Zinc 22 1 #12;Infrastructure Cement #12;Production of Hydraulic Cement's exportation of some metals is declining (rare-earth elements, tin, and tungsten) Foreign investment is increasing (minerals, infrastructure, aid) Environmental residuals from production could rise #12;Background

  13. 2007 Minerals Yearbook U.S. Department of the Interior

    E-Print Network [OSTI]

    statistics and world tungsten concentrate production for 2007 and the previous 4 years are listed in table 12007 Minerals Yearbook U.S. Department of the Interior U.S. Geological Survey TUNGSTEN May 2010 #12;TUNGSTEN--2007 79.1 TUNGSTEN By Kim B. Shedd Domestic survey data and tables were prepared by Danielle L

  14. 2005 Minerals Yearbook U.S. Department of the Interior

    E-Print Network [OSTI]

    2005 Minerals Yearbook TungsTen U.S. Department of the Interior U.S. Geological Survey #12;TungsTen--2005 79.1 TungsTen ByKimB.shedd Domestic survey data and tables were prepared by Amy C. Tolcin, statistical assistant, and the world production table was prepared by Glenn J. Wallace, international data

  15. 2006 Minerals Yearbook U.S. Department of the Interior

    E-Print Network [OSTI]

    , international data coordinator. No U.S. tungsten mine production was reported in 2006. U.S. supply of tungsten Service (FWS) granted final approval to four new tungsten shot products for hunting waterfowl and coots--iron-tungsten2006 Minerals Yearbook TUNGSTEN U.S. Department of the Interior U.S. Geological Survey April 2008

  16. 2010 Minerals Yearbook U.S. Department of the Interior

    E-Print Network [OSTI]

    with that of 2009. Salient U.S. tungsten statistics and world tungsten concentrate production for 20102010 Minerals Yearbook U.S. Department of the Interior U.S. Geological Survey TUNGSTEN [ADVANCE RELEASE] February 2012 #12;TUNGSTEN--2010 [ADVANCE RELEASE] 79.1 TUNGSTEN By Kim B. Shedd Domestic survey

  17. 2011 Minerals Yearbook U.S. Department of the Interior

    E-Print Network [OSTI]

    consumption increased significantly in 2011, as compared with that of 2010. World tungsten mine production. salient u.s. tungsten statistics and world tungsten concentrate production for 2007­11 are listed in table2011 Minerals Yearbook U.S. Department of the Interior U.S. Geological Survey TUNGSTEN [ADVANCE

  18. 2011 Minerals Yearbook U.S. Department of the Interior

    E-Print Network [OSTI]

    ); Oil-dri Corp. of america (fuller's earth); Texas Industries, Inc. (common clay and shale); Thiele2011 Minerals Yearbook U.S. Department of the Interior U.S. Geological Survey CLAY AND SHALE [ADVANCE RELEASE] May 2013 #12;Clay and Shale--2011 [adVanCe ReleaSe] 18.1 Clay and Shale By Robert l

  19. Prospects for Rare Earth Elements From Marine Minerals

    E-Print Network [OSTI]

    Prospects for Rare Earth Elements From Marine Minerals Rare earth elements (REEs) compose in the earth's crust. However, because of their geochemical proper es, rare earth elements are typically. Briefing Paper 02/12 Jim Hein | May 2012 www.isa.org.jm Table 1: Rare Earth Elements This paper

  20. 2007 Minerals Yearbook U.S. Department of the Interior

    E-Print Network [OSTI]

    .S. Geological Survey from a voluntary survey of domestic operations. Of the 44 operations surveyed, 32 did concentrates are developed by a second voluntary survey of domestic mining operations. Of the two domestic2007 Minerals Yearbook U.S. Department of the Interior U.S. Geological Survey ZIRCONIUM AND HAFNIUM

  1. 2008 Minerals Yearbook U.S. Department of the Interior

    E-Print Network [OSTI]

    of domestic operations. of the 46 operations surveyed, 21 responded. data for nonrespondents were estimated concentrates were developed from a second voluntary survey of domestic mining operations. The two domestic2008 Minerals Yearbook U.S. Department of the Interior U.S. Geological Survey ZIRCONIUM AND HAFNIUM

  2. 2009 Minerals Yearbook U.S. Department of the Interior

    E-Print Network [OSTI]

    a voluntary survey of domestic operations. of the 41 operations surveyed, 20 responded. data concentrates were developed from a second voluntary survey of domestic mining operations. The two domestic2009 Minerals Yearbook U.S. Department of the Interior U.S. Geological Survey ZIRCONIUM AND HAFNIUM

  3. Review of Distribution Coefficients for Radionuclides in Carbonate Minerals

    SciTech Connect (OSTI)

    Sutton, M

    2009-08-14T23:59:59.000Z

    An understanding of the transport of radionuclides in carbonate minerals is necessary to be able to predict the fate of (and potentially remediate) radionuclides in the environment. In some environments, carbonate minerals such as calciate, aragonite, dolomite and limestone are present and an understanding of the sorption of radionuclides in these carbonate minerals is therefore advantageous. A list of the radionuclides of interest is given in Table 1. The distribution coefficient, K{sub d} is defined as the ratio of the contaminant concentration bound on the solid phase to the contaminant concentration remaining in the liquid phase at equilibrium. Some authors report distribution coefficients and other report partition coefficients, the data presented in this work assumes equality between these two terms, and data are presented and summarized in this work as logarithmic distribution coefficient (log K{sub D}). Published literature was searched using two methods. Firstly, the JNC Sorption Database, namely Shubutani et al (1999), and Suyama and Sasamoto (2004) was used to select elements of interest and a number of carbonate minerals. Secondly, on-line literature search tools were used to locate relevant published articles from 1900 to 2009. Over 300 data points covering 16 elements (hydrogen, carbon, calcium, nickel, strontium, technetium, palladium, iodine, cesium, samarium, europium, holmium, uranium, neptunium, plutonium and americium) were used to calculate an average and range of log K{sub d} values for each element. Unfortunately, no data could be found for chlorine, argon, krypton, zirconium, niobium, tin, thorium and curium. A description of the data is given below, together with the average, standard deviation, minimum, maximum and number of inputs for radionuclide K{sub d} values for calcite, aragonate, limestone, dolomite and unidentified carbonate rocks in Table 2. Finally, the data are condensed into one group (carbonate minerals) of data for each element of interest in Table 3.

  4. Detection and Quantification of Expansive Clay Minerals in Geologically-Diverse Texas Aggregate Fines

    E-Print Network [OSTI]

    Russell, George 1983-

    2012-11-28T23:59:59.000Z

    Expansive clay mineral contamination of road aggregate materials in Texas is a persistent problem. Hydrous layer silicate minerals - particularly smectites - in concretes are associated with decreased strength and durability in Portland cement...

  5. Investigation of U(VI) Adsorption in Quartz-Chlorite Mineral...

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

    U(VI) Adsorption in Quartz-Chlorite Mineral Mixtures. Investigation of U(VI) Adsorption in Quartz-Chlorite Mineral Mixtures. Abstract: A batch and cryogenic laser-induced...

  6. Incorporation of Np(V) and U(VI) in Carbonate and Sulfate Minerals...

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

    Np(V) and U(VI) in Carbonate and Sulfate Minerals Crystallized from Aqueous Solution. Incorporation of Np(V) and U(VI) in Carbonate and Sulfate Minerals Crystallized from Aqueous...

  7. Geophysical technique for mineral exploration and discrimination based on electromagnetic methods and associated systems

    DOE Patents [OSTI]

    Zhdanov; Michael S. (Salt Lake City, UT)

    2008-01-29T23:59:59.000Z

    Mineral exploration needs a reliable method to distinguish between uneconomic mineral deposits and economic mineralization. A method and system includes a geophysical technique for subsurface material characterization, mineral exploration and mineral discrimination. The technique introduced in this invention detects induced polarization effects in electromagnetic data and uses remote geophysical observations to determine the parameters of an effective conductivity relaxation model using a composite analytical multi-phase model of the rock formations. The conductivity relaxation model and analytical model can be used to determine parameters related by analytical expressions to the physical characteristics of the microstructure of the rocks and minerals. These parameters are ultimately used for the discrimination of different components in underground formations, and in this way provide an ability to distinguish between uneconomic mineral deposits and zones of economic mineralization using geophysical remote sensing technology.

  8. Competitive sorption of pyrene and pyridine to natural clay minerals and reference clay standards

    E-Print Network [OSTI]

    Lee, Lai Man

    2001-01-01T23:59:59.000Z

    -organic interactions were thought to be negligible or nonexistent. Recent studies have shown that the mineral contribution in sorption of Polycyclic Aromatic Hydrocarbons (PAH) has been underestimated. Sorption mechanisms between minerals and PAH are poorly...

  9. Abiotic/Biotic Degradation and Mineralization of N-Nitrosodimethylamine in Aquifer Sediments

    SciTech Connect (OSTI)

    Szecsody, James E.; McKinley, James P.; Breshears, Andrew T.; Crocker, Fiona H.

    2008-10-14T23:59:59.000Z

    The N-nitrosodimethylamine (NDMA) degradation rate and mineralization rate were measured in two aquifer sediments that received treatments to create oxic, reducing, and sequential reducing/oxic environments. Chemically reduced sediments rapidly abiotically degraded NDMA to nontoxic dimethylamine (DMA) to parts per trillion levels, then degraded to further products. NDMA was partially mineralized in reduced sediments (6 to 28 percent) at a slow rate (half-life 3,460 h) by an unknown abiotic/biotic pathway. In contrast, NDMA was mineralized more rapidly (half-life 342 h) and to a greater extent (30 to 81 percent) in oxic sediments with propane addition, likely by a propane monooxygenase pathway. NDMA mineralization in sequential reduced sediment followed by oxic sediment treatment did result in slightly more rapid mineralization and a greater mineralization extent relative to reduced systems. These increases were minor, so aerobic NDMA mineralization with oxygen and propane addition was the most viable in situ NDMA mineralization strategy.

  10. Societal demand for increasing mineral resources continue to affect societythrough aspects as varied as

    E-Print Network [OSTI]

    Handy, Todd C.

    Societal demand for increasing mineral resources continue to affect societythrough aspects in investment. The discovery of new mineral resources requires increasing risk, increasing costs, and to provide trained individuals to industry. Vancouver has long been a global leader in exploration

  11. 41. M. N. Ducea and J. B. Saleeby, Contrib. Mineral. Petrol. 133, 169 (1998).

    E-Print Network [OSTI]

    Howat, Ian M.

    1998-01-01T23:59:59.000Z

    41. M. N. Ducea and J. B. Saleeby, Contrib. Mineral. Petrol. 133, 169 (1998). 42. S. B. Shirey. C. Ballhaus, R. F. Berry, D. H. Green, Contrib. Mineral. Petrol. 107, 27 (1991). 47. J. T. Chesley

  12. Effects of Additives and Templates on Calcium Carbonate Mineralization in vitro

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Accepted M anuscript Effects of Additives and Templates on Calcium Carbonate Mineralization controlling the calcium carbonate crystals formation and the complexity of the crystal morphologies in vitro organic matrices mediate calcium carbonate mineralization. Keywords: additive; template; in vitro

  13. Pyridine sorption to mineral surfaces: a fourier transform infrared spectroscopy study

    E-Print Network [OSTI]

    Graham, Robert Edward

    1999-01-01T23:59:59.000Z

    for the sorption of pyridine to the various mineral surfaces. Results indicated that hydrogen bonding and bonding to Lewis acid sites are responsible for the sorption of gaseous phase pyridine which sorbed to all mineral surfaces. FTIR spectra provided evidence...

  14. RIETVELD REFINEMENT OF REAL STRUCTURE PARAMETERS OF DISORDERED CLAY MINERALS IN

    E-Print Network [OSTI]

    Magee, Joseph W.

    -conventional hydrocarbons in Germany) Germany's potential for shale oil and shale gas NIKO seal gas-rich shale shale: sedimentary rock which contains quartz, carbonates and clay minerals #12;clay minerals in shales quartz

  15. actinide-bearing mineral waste: Topics by E-print Network

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

    Foreign investment: Coal 45 1 Oil 4.7 6 Industrial minerals: Cement 42 1 Fluorspar 55 1 Rare earths 85 1 Metals: Aluminum 162 Mineral-filled polypropylene: Improvement of scratch...

  16. alpha-recoil damaged minerals: Topics by E-print Network

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

    Foreign investment: Coal 45 1 Oil 4.7 6 Industrial minerals: Cement 42 1 Fluorspar 55 1 Rare earths 85 1 Metals: Aluminum 156 Mineral-filled polypropylene: Improvement of scratch...

  17. Rend Lake College celebrates the opening of a new coal miner training facility

    SciTech Connect (OSTI)

    Buchsbaum, L.

    2009-09-15T23:59:59.000Z

    The Coal Miner Training Center at Rend Lake College recently hosted the Illinois Mining Institute's annual conference and a regional mine rescue competition. The article gives an outline of the coal miner training and refresher course offered. 3 photos.

  18. Measurement of accessible reactive surface area in a sandstone, with application to CO2 mineralization

    E-Print Network [OSTI]

    Landrot, G.

    2013-01-01T23:59:59.000Z

    characterization approach employed in this study is suitable for mapping the mineral distribution and pore structure found in a reservoir

  19. Flexible Statistical Models for Growth Fragments: a Study of Bone Mineral Acquisition

    E-Print Network [OSTI]

    Hastie, Trevor

    mineral called dual energy x-ray absorptiom- 2 #12; etry (DXA). To date, most of these investigations have

  20. Hunchback Shelter: A Fremont Lithic Production Site in the Mineral Mountains of Eastern Utah

    E-Print Network [OSTI]

    Greubel, Rand A.; Andrews, Bradford W.

    2008-01-01T23:59:59.000Z

    Mineral Mountains or Black Rock sources (Talbot et al. 2000:Canyon, and Black Rock obsidian source areas. occupations

  1. Generated using version 3.2 of the official AMS LATEX template Distinguishing the cold conveyor belt and sting jet air streams in1

    E-Print Network [OSTI]

    Plant, Robert

    structure of a Shapiro­Keyser cyclone during development stage III.38 There are two separate regions usually belt and sting jet air streams in1 an intense extratropical cyclone2 Oscar Mart´inez-Alvarado, Laura H.martinezalvarado@reading.ac.uk 1 #12;ABSTRACT4 Strong winds equatorwards and rearwards of a cyclone core have often been associated

  2. Reproducing MEES Is Strictly Prohibited MEES 47:11 15 March 2004 The Value Of Extra-Heavy Crude Oil From The Orinoco Belt

    E-Print Network [OSTI]

    O'Donnell, Tom

    Petrolífera del Orinoco) began in 1920 but with disappointing re- sults: the oil discovered was too heavy was made in 1956-57, which led to up to 20,000 b/d of heavy oil put into production, and at this point conjectures, explorations revealed that the Belt mainly contained `heavy' oil ­ according to the present day

  3. Regional-Scale Assessment of Nitrous Oxide Emissions within the US Corn Belt: The Impact of Precipitation and Agricultural Drainage on Indirect Emissions

    E-Print Network [OSTI]

    Minnesota, University of

    Regional-Scale Assessment of Nitrous Oxide Emissions within the US Corn Belt: The Impact of Precipitation and Agricultural Drainage on Indirect Emissions Tim Griffis1, Xuhui Lee2, John Baker3, Peter, but mitigation strategies have been limited by the large uncertainties in both direct and indirect emission

  4. Structural and kinematic analysis of the Early Paleozoic Ondor Sum-Hongqi mlange belt, eastern part of the Altaids (CAOB) in Inner Mongolia, China

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    part of the Altaids (CAOB) in Inner Mongolia, China Guanzhong Shi a,b Michel Faureb , Bei Xua,* , Pan mélange and a magmatic arc that form the main elements of the Southern Orogen Belt of Inner Mongolia of the mélange conducted in the Hongqi and Ondor Sum areas (western Inner Mongolia) shows two phrases of ductile

  5. Clay minerals and their beneficial effects upon human health. M. Isabel Carretero*

    E-Print Network [OSTI]

    Ahmad, Sajjad

    Clay minerals and their beneficial effects upon human health. A review M. Isabel Carretero* Dpto examines the beneficial effects for human health of clay minerals, describing their use in pharmaceutical process and in its possible degradation effect. Among their uses in spas, clay minerals therapeutic

  6. Clay minerals in late glacial and Holocene sediments of the northern and southern Aegean Sea

    E-Print Network [OSTI]

    Siebel, Wolfgang

    Clay minerals in late glacial and Holocene sediments of the northern and southern Aegean Sea Werner Different source areas, oceanography and climate regimes influenced the clay mineral assemblages and grain and the Holocene. In the North Aegean Sea, clay mineral composition is mainly controlled by sea level evolution

  7. West Virginia University Benjamin M. Statler College of Engineering and Mineral Resources

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    West Virginia University Benjamin M. Statler College of Engineering and Mineral Resources Out.cemr.wvu.edu/freshman. #12;West Virginia University Benjamin M. Statler College of Engineering and Mineral Resources Study College of Engineering and Mineral Resources (CEMR) and the Freshman Engineering Program (FEP

  8. Isotopic fractionations associated with phosphoric acid digestion of carbonate minerals: Insights from first-principles theoretical

    E-Print Network [OSTI]

    Goddard III, William A.

    Isotopic fractionations associated with phosphoric acid digestion of carbonate minerals: Insights for oxygen- and carbon-isotope analysis of carbonate minerals since 1950, and was recently established of oxygen isotope acid digestion fractionations among different carbonate minerals. We suggest these results

  9. Copyright: King Fahd University of Petroleum & Minerals; http://www.kfupm.edu.sa

    E-Print Network [OSTI]

    El-Alfy, El-Sayed

    © Copyright: King Fahd University of Petroleum & Minerals; http://www.kfupm.edu.sa A Heuristic. of Pet. & Miner., Dhahran; Advanced Communication Technology, The 9th International conference of Petroleum & Minerals http://www.kfupm.edu.sa Summary A primary goal of this paper is to develop a heuristic

  10. Predicted Effect of Minerals on Pretreatment 1013 Applied Biochemistry and Biotechnology Vol. 113116, 2004

    E-Print Network [OSTI]

    California at Riverside, University of

    Predicted Effect of Minerals on Pretreatment 1013 Applied Biochemistry and Biotechnology Vol. 113 of Mineral Neutralization and Bisulfate Formation on Hydrogen Ion Concentration for Dilute Sulfuric Acid, such as agricultural residues and forest wastes, can have a significant mineral content. It has been shown

  11. Mineral replacement rate of olivine by chrysotile and brucite under high alkaline conditions

    E-Print Network [OSTI]

    Montes-Hernandez, German

    Mineral replacement rate of olivine by chrysotile and brucite under high alkaline conditions Romain Available online 8 March 2012 Keywords: A1. Mineral replacement rate A1. Serpentinization A1. TG analyses B1. Alkaline medium B2. Chrysotile nanotubes a b s t r a c t Olivine mineral replacement by serpentine is one

  12. Mineralization pathways in lake sediments with different oxygen and organic carbon supply

    E-Print Network [OSTI]

    Wehrli, Bernhard

    Mineralization pathways in lake sediments with different oxygen and organic carbon supply Martin Abstract The intensity and pathways of mineralization of sedimentary organic matter were investigated equipped with both oxygen and ion-selective electrodes. Anaerobic sedimentary mineralization ranged from 13

  13. Hyperspectral laboratory and remote sensing applied to clay minerals identification and mapping

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Hyperspectral laboratory and remote sensing applied to clay minerals identification and mapping contain clay minerals that change volume with water content and cause extensive and expensive damage susceptibility. At local scale, characterization of soil properties and identification of clay minerals using

  14. Clay and non-clay minerals in the pharmaceutical industry Part I. Excipients and medical applications

    E-Print Network [OSTI]

    Ahmad, Sajjad

    Clay and non-clay minerals in the pharmaceutical industry Part I. Excipients and medical form 17 July 2009 Accepted 22 July 2009 Available online 29 July 2009 Keywords: Minerals Pharmaceutical industry Excipients Medical applications Physical and physico-chemical properties Minerals are widely used

  15. U.S. GEOLOGICAL SURVEY--MINERALS INFORMATION--1997 1 By James B. Hedrick

    E-Print Network [OSTI]

    U.S. GEOLOGICAL SURVEY--MINERALS INFORMATION--1997 1 ZIRCONIUM By James B. Hedrick Zirconium production and consumption of zircon concentrates were mineral and gemstone had been known since ancient oxides. The zirconium silicate mineral, zircon (ZrSiO ), is the primary4 naturally occurring material

  16. The University of Arizona College of Agriculture and Life Sciences12 Trace Minerals for Cattle

    E-Print Network [OSTI]

    Guerriero, Vince

    The University of Arizona College of Agriculture and Life Sciences12 Trace Minerals for Cattle deficiency of range forage as a potential culprit, zeroing in on its lack of the trace minerals selenium lacks these critical minerals, but also figured out a more efficient way to get cattle to consume them

  17. Impact of nano-size weathering products on the dissolution rates of primary minerals

    E-Print Network [OSTI]

    Simon, Emmanuel

    Impact of nano-size weathering products on the dissolution rates of primary minerals Simon.O. Box 208109, New Haven, CT 06520-8109 USA Abstract The natural weathering rates of primary minerals are often orders of mag- nitude lower than the rates of mineral dissolution measured in laboratory

  18. ILLITE-SMECTITE MIXED-LAYER MINERALS IN HYDROTHERMAL ALTERATION OF VOLCANIC ROCKS

    E-Print Network [OSTI]

    Boyer, Edmond

    1 ILLITE-SMECTITE MIXED-LAYER MINERALS IN HYDROTHERMAL ALTERATION OF VOLCANIC ROCKS: I. ONE-layer minerals The person to whom correspondence and page proofs should be sent: Atsuyuki Inoue Department-00107011,version1-5Dec2007 Author manuscript, published in "Clays and Clay Minerals 53 (2005) 423-439" DOI

  19. MinErAl prEpArAtion EnginEEring

    E-Print Network [OSTI]

    Hartman, Chris

    MinErAl prEpArAtion EnginEEring College of Engineering and Mines Department of Mining ­ 36 credits The mineral preparation engineering program offers specialization in the processes used to concentrate target minerals and remove undesir- able material from mined ore. Interdisciplinary study

  20. U.S. GEOLOGICAL SURVEY CIRCULAR 930-A International Strategic Minerals Inventory

    E-Print Network [OSTI]

    Torgersen, Christian

    U.S. GEOLOGICAL SURVEY CIRCULAR 930-A International Strategic Minerals Inventory Summary Report~P_ro_t_e_r__ozo_i_c____-j~~--,_ 25oo z Minerals Inventory Summary Report as a cooperative effort among earth- science and mineral-resource agencies of Australia, Canada, the Federal

  1. Elasticity measurements on minerals: a review ROSS J. ANGEL1,*, JENNIFER M. JACKSON2

    E-Print Network [OSTI]

    Jackson, Jennifer M.

    Elasticity measurements on minerals: a review ROSS J. ANGEL1,*, JENNIFER M. JACKSON2 , HANS J 91125, USA 3 Deutsches Geoforschungszentrum, 14473 Potsdam, Germany Abstract: The elasticity of minerals in the experimental methods used to determine the elastic properties of minerals. Not only have new techniques become

  2. ILLITE-SMECTITE MIXED-LAYER MINERALS IN HYDROTHERMAL ALTERATION OF VOLCANIC ROCKS

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 ILLITE-SMECTITE MIXED-LAYER MINERALS IN HYDROTHERMAL ALTERATION OF VOLCANIC ROCKS: II. ONE-D HRTEM structure images of hydrothermal I-S mixed-layer minerals The person to whom correspondence manuscript, published in "Clays and Clay Minerals 53 (2005) 440-451" DOI : 10.1346/CCMN.2005.0530502 hal

  3. Mineral ID Self-Instruction Lab Name _________________________ Geology 100 Harbor Section

    E-Print Network [OSTI]

    Harbor, David

    Mineral ID Self-Instruction Lab Name _________________________ Geology 100 ­ Harbor Section Your goal for this lab is to become familiar with the physical properties used to identify minerals. Physical properties are determined by the chemical and crystalline properties of the given mineral. However

  4. Copyright: King Fahd University of Petroleum & Minerals; http://www.kfupm.edu.sa

    E-Print Network [OSTI]

    El-Alfy, El-Sayed

    © Copyright: King Fahd University of Petroleum & Minerals; http://www.kfupm.edu.sa A Learning-Dong Yao Heffes, H.;Dept. of Comput. Sci., King Fahd Univ. of Pet. & Miner., Dhahran; Wireless & Minerals http://www.kfupm.edu.sa Summary An efficient channel allocation policy that prioritizes handoffs

  5. Review Article Clay and non-clay minerals in the pharmaceutical and cosmetic industries

    E-Print Network [OSTI]

    Ahmad, Sajjad

    Review Article Clay and non-clay minerals in the pharmaceutical and cosmetic industries Part II in revised form 15 October 2009 Accepted 22 October 2009 Available online 31 October 2009 Keywords: Minerals range and variety of minerals are used in the pharmaceutical industry as active ingredients

  6. Mineralization of Decalcified Bone Occurs Under Cell Culture Conditions and Requires Bovine Serum But Not Cells

    E-Print Network [OSTI]

    Price, Paul A.

    Mineralization of Decalcified Bone Occurs Under Cell Culture Conditions and Requires Bovine Serum mineralization in the absence of cells. For this model, we utilized EDTA- decalcified new-born rat tibias with the cartilaginous ends intact, allowing us to visually determine the spec- ificity of mineralization within the bone

  7. Mineral paragenesis and textures associated with sandstone-hosted roll-front uranium deposits, NW China

    E-Print Network [OSTI]

    Fayek, Mostafa

    Mineral paragenesis and textures associated with sandstone-hosted roll-front uranium deposits, NW Sciences, State Key Laboratory of Mineral Deposit Research, Nanjing University, Nanjing 210093, People, Wuyiyi and Shihongtan sandstone-hosted roll-front uranium deposits, northwest China. The mineralization

  8. Mineral-specific chemical weathering rates over millennial timescales: Measurements at Rio Icacos, Puerto Rico

    E-Print Network [OSTI]

    Kirchner, James W.

    Mineral-specific chemical weathering rates over millennial timescales: Measurements at Rio Icacos 2010 Accepted 26 July 2010 Editor: J.D. Blum Keywords: Chemical weathering Mineral weathering Cosmogenic nuclides Rio Icacos Puerto Rico Mineral weathering plays a prominent role in many biogeochemical

  9. What is the Role of Arsenite-Oxidising Bacteria in Dissolving Arsenic Minerals?

    E-Print Network [OSTI]

    Crawford, Ian

    What is the Role of Arsenite-Oxidising Bacteria in Dissolving Arsenic Minerals? Supervisors: Dr through dissolution of arsenic-bearing minerals. This process is mediated by bacteria, which can break down the mineral lattice by extracting nutrient elements such as potassium, or by causing redox changes

  10. Interactions between diatom aggregates, minerals, particulate organic carbon, and dissolved organic matter: Further

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Interactions between diatom aggregates, minerals, particulate organic carbon, and dissolved organic October 2008. [1] Correlations of particulate organic carbon (POC) and mineral fluxes into sediment traps in the deep sea have previously suggested that interactions between organic matter and minerals play a key

  11. Mineral resource assessment: Compliance between Emergy1 and Exergy respecting Odum's hierarchy concept2

    E-Print Network [OSTI]

    Boyer, Edmond

    Mineral resource assessment: Compliance between Emergy1 and Exergy respecting Odum's hierarchy mineral resources, taking into account their abundance, their8 chemical and physical properties of mineral, dispersed in the Earth's10 crust, is a co-product of the latter. The specic emergies of dispersed

  12. Role of microbial iron reduction in the dissolution of iron hydroxysulfate minerals

    E-Print Network [OSTI]

    and for radionuclides such as 226 Ra. These mineral-bound contaminants are considered immobilized under oxic conditions in mineral dissolution, releasing these bound contaminants. Reduction of structural sulfate in the ironRole of microbial iron reduction in the dissolution of iron hydroxysulfate minerals Elizabeth J. P

  13. Mineral sequestration of CO2 by aqueous carbonation of1 coal combustion fly-ash2

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 Mineral sequestration of CO2 by aqueous carbonation of1 coal combustion fly-ash2 3 G. Montes that could possibly4 contribute to reducing carbon dioxide emissions is the in-situ mineral sequestration (long term5 geological storage) or the ex-situ mineral sequestration (controlled industrial reactors

  14. PR-Miner: Automatically Extracting Implicit Programming Rules and Detecting Violations in Large Software Code

    E-Print Network [OSTI]

    Zhang, Xiangyu

    PR-Miner: Automatically Extracting Implicit Programming Rules and Detecting Violations in Large. Benefiting from frequent itemset mining, PR-Miner can extract pro- gramming rules in general forms (withoutK­3M lines of code each, shows that PR-Miner can efficiently extract thousands of general

  15. 150 Years of Boom and Bust: What Drives Mineral Commodity Prices?

    E-Print Network [OSTI]

    Nesterov, Yurii

    33, N50 Keywords: Mineral Commodity Markets, Prices, Non-renewable resources, Structural VAR that, while global output and inflation have some effects on the prices of agricultural and mineral150 Years of Boom and Bust: What Drives Mineral Commodity Prices? Martin Stuermer Job Market Paper

  16. Report TKK-ENY-9 Mineral carbonation for long-term storage of CO2

    E-Print Network [OSTI]

    Zevenhoven, Ron

    ://www.entek.chalmers.se/~anly/symp/symp2001.html) "CO2 sequestration by magnesium silicate mineral carbonation in Finland" Ron Zevenhoven of magnesium oxide-based mineral carbonation for CO2 sequestration" Ron Zevenhoven, Jens Kohlmann. underReport TKK-ENY-9 Mineral carbonation for long-term storage of CO2 from flue gases Jens Kohlmann 1

  17. Change in atmospheric mineral aerosols in response to climate: Last glacial period, preindustrial, modern, and doubled carbon dioxide climates

    E-Print Network [OSTI]

    2006-01-01T23:59:59.000Z

    parameters on mineral aerosol mobilization, transport, andand L. Kiehl (2003), Mineral aerosol and cloud interactions,for paleoclimate, in Dust Aerosols, Loess Soils and Global

  18. THE EFFECT OF IN SITU ALTERATION ON GOLD COMPOSITION AT NYARKAGWE, SUKUMALAND GREENSTONE BELT, NW-TANZANIA

    E-Print Network [OSTI]

    to mineraiogical reactions and a change of temperature (initially high and later continuously de creasing of water incorporated In hydrous minerals due to the reaction of hot saline brines with country rock of deposition). Shear zones and quartz veins acted as chimneys for heat release due to hot fluid transfer

  19. Scanning probe microscopy: Sulfate minerals in scales and cements

    SciTech Connect (OSTI)

    Hall, C. [Schlumberger Cambridge Research (United Kingdom)

    1995-11-01T23:59:59.000Z

    The principles of scanning probe microscopy (SPM) are illustrated with examples from oilfield mineralogy, particularly emphasizing sulfate minerals involved in scale formation and cement hydration chemistry. The topography of the (010) cleavage surface of gypsum observed by atomic force microscopy shows atomically flat terraces separated by shallow steps often only one unit cell high. SPM allows direct observation of processes on mineral surfaces while they are in contact with solutions. The dissolution etching and crystal growth of gypsum and barite are discussed and rates of step migration estimated. The orientation of steps is related to the crystallographic axes. The action of phosphonate crystal growth inhibitor on gypsum and of a chelating scale solvent on barite are also shown. The multiphase microstructure of an oilwell cement clinker is described in relation to its hydration chemistry in contact with water and its reaction with sulfate ions.

  20. Method of analysis of asbestiform minerals by thermoluminescence

    DOE Patents [OSTI]

    Fisher, Gerald L. (Davis, CA); Bradley, Edward W. (Davis, CA)

    1980-01-01T23:59:59.000Z

    A method for the qualitative and quantitative analysis of asbestiform minerals, including the steps of subjecting a sample to be analyzed to the thermoluminescent analysis, annealing the sample, subjecting the sample to ionizing radiation, and subjecting the sample to a second thermoluminescent analysis. Glow curves are derived from the two thermoluminescent analyses and their shapes then compared to established glow curves of known asbestiform minerals to identify the type of asbestiform in the sample. Also, during at least one of the analyses, the thermoluminescent response for each sample is integrated during a linear heating period of the analysis in order to derive the total thermoluminescence per milligram of sample. This total is a measure of the quantity of asbestiform in the sample and may also be used to identify the source of the sample.

  1. Spatially resolved mineral deposition on patterned self-assembled monolayers

    SciTech Connect (OSTI)

    Rieke, P.C.; Tarasevich, B.J.; Wood, L.L.; Engelhard, M.H.; Baer, D.R.; Fryxell, G.E. (Pacific Northwest Lab., Richland, WA (United States)); John, C.M. (Charles Evans Associates, Redwood City, CA (United States)); Laken, D.A.; Jaehnig, M.C. (FEI Corp., Beaverton, OR (United States))

    1994-03-01T23:59:59.000Z

    Electron and ion beam lithographic techniques were used to pattern self-assembled monolayers with organic functional groups. Nucleation and growth of minerals from aqueous solution were confined to the patterned regions. A vinyl-terminated self-assembled monolayer (SAM) was selectively deposited in ion and electron beam etched regions of a methyl-terminated SAM. Sulfonation of the vinyl groups produced a surface patterned in either hydrophobic methyl groups or hydrophilic sulfonate groups. Subsequent growth of FeOOH films was confined to the sulfonated regions. Condensation images were used to image each step in the lithographic scheme. Resolution of the SAM patterning step was 1-3 [mu]m, while resolution of the mineral deposition step was 10-15 [mu]m. 15 refs., 3 figs.

  2. Hydrodesulfurization and hydrodenitrogenation catalysts obtained from coal mineral matter

    DOE Patents [OSTI]

    Liu, Kindtoken H. D. (Newark, DE); Hamrin, Jr., Charles E. (Lexington, KY)

    1982-01-01T23:59:59.000Z

    A hydrotreating catalyst is prepared from coal mineral matter obtained by low temperature ashing coals of relatively low bassanite content by the steps of: (a) depositing on the low temperature ash 0.25-3 grams of an iron or nickel salt in water per gram of ash and drying a resulting slurry; (b) crushing and sizing a resulting solid; and (c) heating the thus-sized solid powder in hydrogen.

  3. Effects of mineral fillers in slurry seal mixtures

    E-Print Network [OSTI]

    Harper, William Joe

    1964-01-01T23:59:59.000Z

    rather than a desi~. The current practice among engineers and contractors is to prepare a mixture in ac- cordance with these specifications using local materials. In many cases a mineral filler, usually portland cement, is added to "improve... applied to portland cement concrete pavements to improve the skid resistance and riding qualities of tbe surface. A slurry seal cost does not increase or improve the strength of the pavement structure . The City of Las Vagas, New Mexico, used slurry...

  4. Long-Term Surveillance Plan for the Upper Burbank Disposal Cell, Uravan, Colorado, DOE/AL/62350-250, Revision 1, July 1999

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA groupTuba City, Arizona, DisposalFourthNrr-osams ADMIN551 - g 7635U: .'j', J

  5. Electronic Surface Structures of Coal and Mineral Particles

    SciTech Connect (OSTI)

    M.K. Mazumder; D.A. Lindquist; K.B. Tennal; Steve Trigwell; Steve Farmer; Albert Nutsukpul; Alex Biris

    2001-04-01T23:59:59.000Z

    Surface science studies related to tribocharging and charge separation studies were performed on electrostatic beneficiation of coal. In contrast to other cleaning methods, electrostatic beneficiation is a dry cleaning process requiring no water or subsequent drying. Despite these advantages, there is still uncertainty in implementing large scale commercial electrostatic beneficiation of coal. The electronic surface states of coal macerals and minerals are difficult to describe due to their chemical complexity and variability [1]. The efficiency in separation of mineral particles from organic macerals depends upon these surface states. Therefore, to further understand and determine a reason for the bipolar charging observed in coal separation, surface analysis studies using Ultra-violet Photoelectron Spectroscopy (UPS) and X-ray Photoelectron Spectroscopy (XPS) were performed on coal samples and several materials that are used or considered for use in tribocharging. Electrostatic charging is a surface phenomenon, so the electronic surface states of the particles, which are influenced by the environmental conditions, determine both polarity and magnitude of tribocharging. UPS was used to measure the work function of the materials as typically used in ambient air. XPS was used to determine the surface chemistry in the form of contamination and degree of oxidation under the same environmental conditions. Mineral bearing coals are those amenable to electrostatic beneficiation. Three types of coal, Illinois No. 6, Pittsburgh No. 8, and Kentucky No. 9 were investigated in this study. Pulverized coal powder was tribocharged against copper. Pyritic and other ashes forming minerals in coal powders should charge with a negative polarity from triboelectrification, and organic macerals should acquire positive charge, according to the relative differences in the surface work functions between the material being charged and the charging medium. Different types of minerals exhibit different magnitudes of negative charge and some may also charge positively against copper [2]. Only the mineral sulfur fraction of the total sulfur content is accessible by the electrostatic method since organic sulfur is covalently bound with carbon in macerals. The sizes of mineral constituents in coal range from about 0.1 to 100 {micro}m, but pyrites in many coals are on the lower end of this scale necessitating fine grinding for their liberation and separation. A ready explanation for coal powder macerals to charge positively by triboelectrification is found in the large numbers of surface carbon free radicals available to release electrons to form aromatic carbocations. There is evidence that these cationic charges are delocalized over several atoms [3]. Only perhaps one in one hundred thousand of the surface atoms is charged during triboelectrification [4], making it difficult to predict charging levels since the data depends upon the surface chemical species involved in charging. Based on the high electron affinity of oxygen atoms, oxidation is expected to decrease the extent of a coal particle to charge positively. Also, ion transfer may contribute to the increasingly negative charging character of oxidized coal carbons. A variety of oxidized surface functional groups may influence charge properties. For example, carboxylic acid functions can lose protons to form carboxylate anions. The samples of coal investigated in this study showed differing degrees of beneficiation, consistent with a more extensively oxidized Illinois No. 6 coal sample relative to that of Pittsburgh No. 8. Even though oxygen in air is deleterious to coal stored prior to beneficiation, other gases might favorably influence charge properties. To this end, coal exposed to vapors of acetone, ammonia, and sulfur dioxide also were beneficiated and analyzed in this study.

  6. Mineral Maturity and Crystallinity Index Are Distinct Characteristics of Bone D. Farlay, G. Panczer, C. Rey, P. D. Delmas

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Mineral Maturity and Crystallinity Index Are Distinct Characteristics of Bone Mineral D. Farlay, G in "Journal of Bone and Mineral Metabolism 2010;28(4):433-45" DOI : 10.1007/s00774-009-0146-7 #12;Abstract The purpose of this study was to test the hypothesis that mineral maturity and crystallinity index are two

  7. TITANIUM MINERAL CONCENTRATES1 (Data in thousand metric tons of TiO2 content, unless otherwise noted)

    E-Print Network [OSTI]

    174 TITANIUM MINERAL CONCENTRATES1 (Data in thousand metric tons of TiO2 content, unless otherwise-mineral sands operations in Florida and Virginia. The value of titanium mineral concentrates consumed deposits was zircon. About 95% of titanium mineral concentrates was consumed by TiO2 pigment producers

  8. TITANIUM MINERAL CONCENTRATES1 (Data in thousand metric tons of contained TiO2, unless otherwise noted)

    E-Print Network [OSTI]

    176 TITANIUM MINERAL CONCENTRATES1 (Data in thousand metric tons of contained TiO2, unless-mineral sands operations in Florida and Virginia. The value of titanium mineral concentrates consumed deposits was zircon. About 95% of titanium mineral concentrates was consumed by TiO2 pigment producers

  9. MINERAL PROCESSING BY SHORT CIRCUITS IN PROTOPLANETARY DISKS

    SciTech Connect (OSTI)

    McNally, Colin P. [Niels Bohr International Academy, Niels Bohr Institute, DK-2100 Copenhagen (Denmark); Hubbard, Alexander; Mac Low, Mordecai-Mark [Department of Astrophysics, American Museum of Natural History, New York, NY 10024-5192 (United States); Ebel, Denton S. [Department of Earth and Planetary Sciences, American Museum of Natural History, New York, NY 10024-5192 (United States); D'Alessio, Paola, E-mail: cmcnally@nbi.dk, E-mail: ahubbard@amnh.org, E-mail: mordecai@amnh.org, E-mail: debel@amnh.org, E-mail: p.dalessio@crya.unam.mx [Centro de Radioastronomia y Astrofisica, Universidad Nacional Autonoma de Mexico, 58089 Morelia, MICH (Mexico)

    2013-04-10T23:59:59.000Z

    Meteoritic chondrules were formed in the early solar system by brief heating of silicate dust to melting temperatures. Some highly refractory grains (Type B calcium-aluminum-rich inclusions, CAIs) also show signs of transient heating. A similar process may occur in other protoplanetary disks, as evidenced by observations of spectra characteristic of crystalline silicates. One possible environment for this process is the turbulent magnetohydrodynamic flow thought to drive accretion in these disks. Such flows generally form thin current sheets, which are sites of magnetic reconnection, and dissipate the magnetic fields amplified by a disk dynamo. We suggest that it is possible to heat precursor grains for chondrules and other high-temperature minerals in current sheets that have been concentrated by our recently described short-circuit instability. We extend our work on this process by including the effects of radiative cooling, taking into account the temperature dependence of the opacity; and by examining current sheet geometry in three-dimensional, global models of magnetorotational instability. We find that temperatures above 1600 K can be reached for favorable parameters that match the ideal global models. This mechanism could provide an efficient means of tapping the gravitational potential energy of the protoplanetary disk to heat grains strongly enough to form high-temperature minerals. The volume-filling nature of turbulent magnetic reconnection is compatible with constraints from chondrule-matrix complementarity, chondrule-chondrule complementarity, the occurrence of igneous rims, and compound chondrules. The same short-circuit mechanism may perform other high-temperature mineral processing in protoplanetary disks such as the production of crystalline silicates and CAIs.

  10. First Results of a Full Scaled Passive Treatment System for High Metal Concentration AMD at the Iberian Pyrite Belt, SW Spain

    E-Print Network [OSTI]

    Politècnica de Catalunya, Universitat

    at the Iberian Pyrite Belt, SW Spain M. A. Caraballo a), F. Macías a), T. S. Rötting b), J. M. Nieto a), C. Ayora c) a) Department of Geology, University of Huelva. Avda. Fuerzas Armadas s/n, 21071 Huelva, Spain "Jaume Almera" CSIC, Lluís Solé y Sabarís, s/n. Barcelona 08028, Spain. Abstract Acidity load

  11. Potassium Fixation and Supply by Soils with Mixed Clay Minerals.

    E-Print Network [OSTI]

    Hipp, Billy W.

    1969-01-01T23:59:59.000Z

    B-1090 December 1969 1 potassium Fixation and Supply By Soils With Misd Clay Minerals I KUS A&M UNIVERSITY Tcrv Agricultural Experiment Station r i 0. Kunkel, Acting Director, College Station, Texas Summary to the plants while Cameron clay... of the soils n-j Laredo si 1 supplied 3.29 me K/me of exchangeable K increased by the addition of K fertilizer after nme ;- Yotassium Pixation and 3upgly By Soils Witb Mixed Clay Ad111t1;: Bill] " ' " HE POTASSIUM STATUS OF SOILS of the Midwest, North...

  12. NOVEL IN-SITU METAL AND MINERAL EXTRACTION TECHNOLOGY

    SciTech Connect (OSTI)

    Glenn O'Gorman; Hans von Michaelis; Gregory J. Olson

    2004-09-22T23:59:59.000Z

    This white paper summarizes the state of art of in-situ leaching of metals and minerals, and describes a new technology concept employing improved fragmentation of ores underground in order to prepare the ore for more efficient in-situ leaching, combined with technology to continuously improve solution flow patterns through the ore during the leaching process. The process parameters and economic benefits of combining the new concept with chemical and biological leaching are described. A summary is provided of the next steps required to demonstrate the technology with the goal of enabling more widespread use of in-situ leaching.

  13. Measurement of bone mineral content in caged and active cats 

    E-Print Network [OSTI]

    Tveter, Diane Ellen

    1988-01-01T23:59:59.000Z

    errors but these can be reduced by using two different x-ray energies. Dual energy CT operates on a basis similar to dual photon absorptiometry (explained below). The difference in attenuation between tissue and bone is greater for a lower energy... to act as a soft tissue equivalent (35). Effects of fat and soft tissue are decreased when dual energy CT is used (33). Data from each of the two different photon energies are combined and result in images of soft tissue and bone mineral regions. Beam...

  14. The morphological and chemical characteristics of respirable mineral wool fibers

    E-Print Network [OSTI]

    Butler, Donnie Ray

    1976-01-01T23:59:59.000Z

    in these are rockwool, slagwool and fibrous glass, any one of wh1ch may be processed from a molten state into a fluffy, lightweight mass of fine, intermingled mineral fibers composed of complex sil1cates. Each of these f1bers may have quite different physical... the United States, I In the early product1on of man-made slag fibers a stream of high pressure steam was aimed at molten slag flowing from a blast furnace, The wool produced was used ma1nly in the makinq of mortar as its value as an insulat1on material...

  15. Mineral Deformation at Earth's Core-Mantle Boundary

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHighandSWPA / SPRA / USACE625Data ShowCDevelopment33.0 8.0 3.4iMineral

  16. Mineral Deformation at Earth's Core-Mantle Boundary

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHighandSWPA / SPRA / USACE625Data ShowCDevelopment33.0 8.0Mineral

  17. National Mineral Development Corporation Ltd NMDC | 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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluatingGroup |JilinLuOpen Energy Information NationalNational GridMineral

  18. Miner County, South Dakota: 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 onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant JumpMarysville, Ohio:Menomonee|MililaniMindanao GEPP Jump to: navigation,Miner County,

  19. Mineral County, 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 onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant JumpMarysville, Ohio:Menomonee|MililaniMindanao GEPP Jump to: navigation,Miner

  20. Mineral County, Montana: 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 onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant JumpMarysville, Ohio:Menomonee|MililaniMindanao GEPP Jump to: navigation,MinerMontana:

  1. Mineral Wells, Texas: 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 onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant JumpMarysville, Ohio:Menomonee|MililaniMindanao GEPP Jump to:WestReport: MineralWells,

  2. DOE - Office of Legacy Management -- Heavy Minerals Inc - IL 14

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA group currentBradleyTable ofArizonaBuffalo -ElkGuterl SpecialtyHeavy Minerals Inc

  3. Radioactive Mineral Occurences in Nevada | 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 onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I GeothermalPotentialBiopowerSolidGenerationMethodInformationeNevadaRadioactive Mineral Occurences in

  4. Mineral Deformation at Earth's Core-Mantle Boundary

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated Codes |IsLove Your1 SECTION A. Revised:7, atMineral Deformation at Earth's

  5. Mineral Deformation at Earth's Core-Mantle Boundary

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated Codes |IsLove Your1 SECTION A. Revised:7, atMineral Deformation at

  6. DOI Bureau of Indian Affairs Mineral Development Grants to Help with Development of Tribal Energy

    Broader source: Energy.gov [DOE]

    The U.S. Department of the Interior, through the Bureau of Indian Affairs, Office of Indian Energy and Economic Development (IEED) is offering grants to federally-recognized Tribes and tribal energy resource development organizations for projects that help the development of a tribal energy and mineral resource inventory, a tribal energy and mineral resource on Indian land, or for the development of a report necessary to the development of energy and mineral resources on Indian lands.

  7. Quantitative determination of mineral composition by powder x-ray diffraction

    DOE Patents [OSTI]

    Pawloski, G.A.

    1984-08-10T23:59:59.000Z

    An external standard intensity ratio method is used for quantitatively determining mineralogic compositions of samples by x-ray diffraction. The method uses ratios of x-ray intensity peaks from a single run. Constants are previously determined for each mineral which is to be quantitatively measured. Ratios of the highest intensity peak of each mineral to be quantified in the sample and the highest intensity peak of a reference mineral contained in the sample are used to calculate sample composition.

  8. Texture and mineralogy of the Upper Gambrian Welge sandstone, Central Mineral region, Texas

    E-Print Network [OSTI]

    Hooks, James Edward

    1961-01-01T23:59:59.000Z

    -Clay Analysis Based on Settling Velocities. Mineralogical Analysis. Selection of Samples Sample Preparation . Mounting . Mineral Identification Page 2O 21 22 23 Roundness X-ray Diffraction of Glauconite . SPDIMrNTARY PARAMvTTG!S Median Diameter.... Variation in M&ineralogical Content. Mineralogy. Description oi' Heavy Minerals Description of Light M&inerals Thin Section Descri!tion, ~ ~ ~ ~ 53 CL NCLUSICNS, BIBLIOG''HY APPPNDIX A -; IZP ANALYSIS DATA. APF ~e, IX B ? SFDIN| START PARANFTPRS...

  9. The use and tenure of land in Oklahoma held primarily for its mineral potential

    E-Print Network [OSTI]

    Parcher, L. A.

    1955-01-01T23:59:59.000Z

    primarily for its mineral value was virtually the same in all counties visited in the Cross Timbers Area, an area of generally poor-quality land. The point was made frequently that speculative owners probably were able to buy the fee simple title almost... interest was non? mineral. In the cases found, such owners generally held tracts which local people believed were accumulated originally for mineral speculation* Another procedure might have been to choose tracts at random over the entire county or area...

  10. Health assessment for Oronogo-Duenweg Mining Belt, Jasper County, Missouri, Region 7. CERCLIS No. MDD980686281. Preliminary report

    SciTech Connect (OSTI)

    Not Available

    1990-06-18T23:59:59.000Z

    The Oronogo-Duenweg Mining Belt site, Jasper County, Missouri, has been proposed by the U.S. Environmental Protection Agency (EPA) for inclusion on the National Priorities List (NPL). Referred to as the Missouri portion of the Tri-State (Missouri, Kansas, and Oklahoma) Mining District, the site comprises approximately 20 square miles and was the location of the most concentrated mining effort in the Tri-State District. As a result of commercial zinc and lead mining operations that occurred from about 1850 until the late 1960s, shallow groundwater, surface water, sediment, and surface soil are contaminated with heavy metals (zinc, lead, cadmium, and nickel). Municipalities in the area use both surface water and a deep aquifer for water supplies; individual households outside these centers rely on a shallow aquifer for water. Based upon information reviewed, the Agency for Toxic Substances and Disease Registry (ATSDR) has concluded that this site is of public health concern because of the risk to human health resulting from probable exposure to hazardous substances at concentrations that may result in adverse human health effects.

  11. Stellar Parameters for HD 69830, a Nearby Star with Three Neptune Mass Planets and an Asteroid Belt

    E-Print Network [OSTI]

    Tanner, Angelle; von Braun, Kaspar; Kane, Stephen; Brewer, John M; Farrington, Chris; van Belle, Gerard T; Beichman, Charles A; Fischer, Debra; Brummelaar, Theo A ten; McAlister, Harold A; Schaefer, Gail

    2014-01-01T23:59:59.000Z

    We used the CHARA Array to directly measure the angular diameter of HD 69830, home to three Neptune mass planets and an asteroid belt. Our measurement of 0.674+/-0.014 milli-arcseconds for the limb-darkened angular diameter of this star leads to a physical radius of R$_*$ = 0.9058$\\pm$0.0190 R\\sun and luminosity of L* = 0.622+/-0.014 Lsun when combined with a fit to the spectral energy distribution of the star. Placing these observed values on an Hertzsprung-Russel (HR) diagram along with stellar evolution isochrones produces an age of 10.6+/-4 Gyr and mass of 0.863$\\pm$0.043 M\\sun. We use archival optical echelle spectra of HD 69830 along with an iterative spectral fitting technique to measure the iron abundance ([Fe/H]=-0.04+/-0.03), effective temperature (5385+/-44 K) and surface gravity (log g = 4.49+/-0.06). We use these new values for the temperature and luminosity to calculate a more precise age of 7.5+/-Gyr. Applying the values of stellar luminosity and radius to recent models on the optimistic locati...

  12. A Summary of Coupled, Uncoupled, and Hybrid Tectonic Models for the Yakima Fold Belt--Topical Report

    SciTech Connect (OSTI)

    Chamness, Michele A.; Winsor, Kelsey; Unwin, Stephen D.

    2012-08-01T23:59:59.000Z

    This document is one in a series of topical reports compiled by the Pacific Northwest National Laboratory to summarize technical information on selected topics important to the performance of a probabilistic seismic hazard analysis of the Hanford Site. The purpose of this report is to summarize the range of opinions and supporting information expressed by the expert community regarding whether a coupled or uncoupled model, or a combination of both, best represents structures in the Yakima Fold Belt. This issue was assessed to have a high level of contention with up to moderate potential for impact on the hazard estimate. This report defines the alternative conceptual models relevant to this technical issue and the arguments and data that support those models. It provides a brief description of the technical issue and principal uncertainties; a general overview on the nature of the technical issue, along with alternative conceptual models, supporting arguments and information, and uncertainties; and finally, suggests some possible approaches for reducing uncertainties regarding this issue.

  13. A Summary of Information on the Behavior of the Yakima Fold Belt as a Structural Entity -- Topical Report

    SciTech Connect (OSTI)

    Last, George V.; Winsor, Kelsey; Unwin, Stephen D.

    2012-08-01T23:59:59.000Z

    This document is one in a series of topical reports compiled by the Pacific Northwest National Laboratory to summarize technical information on selected topics important to the performance of a probabilistic seismic hazard analysis (PSHA) of the Hanford Site. The purpose of this report is to summarize available data and analyses relevant to the Yakima Fold Belt (YFB) that may bear on the question of whether or not the YFB behaves as a single seismotectonic province in which activity along one fold structure is representative of behavior along all other fold structures. This topic has met with a fairly high level of contention in the expert community and has the potential to result in significant impacts on an evaluation of seismic hazard at the Hanford Site. This report defines the relevant alternative conceptual models relevant to this technical issue and the arguments and data that support those models. It provides a brief description of the technical issue and principal uncertainties; a general overview on the nature of the technical issue, along with alternative conceptual models, supporting arguments and information, and uncertainties; and finally, it suggests some possible approaches for reducing uncertainties regarding this issue.

  14. Electron Transfer at the Microbe-Mineral Interface: A Grand Challenge...

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

    Challenge in Biogeochemistry. Abstract: The interplay between microorganisms and minerals is a complex and dynamic process that has sculpted the geosphere for nearly the...

  15. Title 43 CFR 3814 Disposal of Reserved Minerals Under the Stockraising...

    Open Energy Info (EERE)

    Reserved Minerals Under the Stockraising Homestead Act Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document- Federal RegulationFederal Regulation:...

  16. King Fahd University of Petroleum and Minerals Department of Computer Engineering

    E-Print Network [OSTI]

    Almulhem, Ahmad

    King Fahd University of Petroleum and Minerals Department of Computer Engineering the state of the system, and as such may contaminate the evidence ¤ The inves

  17. 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.

  18. Reactivity of iron-bearing minerals and CO2 sequestration: A...

    Office of Scientific and Technical Information (OSTI)

    Reactivity of iron-bearing minerals and CO2 sequestration: A multi-disciplinary experimental approach Re-direct Destination: The reactivity of sandstones was studied under...

  19. Society for Geology Applied to Ore Deposits GENEVA MINERALS: Industry and Academia

    E-Print Network [OSTI]

    Halazonetis, Thanos

    Society for Geology Applied to Ore Deposits GENEVA MINERALS: Industry and Academia Creating links Tripodi, Vanga Resources, Geneva · A student view of economic geology. Honza Catchpole, President

  20. Three Packets of Minerals of the Periodic Table of Chemical Elements and Chemical Compounds

    E-Print Network [OSTI]

    Labushev, Mikhail M

    2013-01-01T23:59:59.000Z

    The concepts of alpha- and beta-packets of the periodic table of chemical elements and chemical compounds are defined. The first of the 47 minerals alpha-packets is composed. In it all minerals are arranged in increasing Iav index of proportionality of atomic weights of composing chemical elements, the same way as chemical elements are located in increasing atomic weights in the Periodic table. The packet includes 93 known minerals and two compounds - N2O5 and CO2 - being actually minerals. Beta-packet of oxides and hydroxides minerals includes 88 known minerals and five chemical compounds - N2O5, CO2, CO, SO3 and SO2. Two minerals of the packet have not been determined yet. Besides, beta-packet of minerals with sulfur, selenium or arsenic is composed, with one mineral not defined yet. The results of the calculations can be used for further development of the Periodic Table of Chemical Elements and Chemical Compounds and their properties investigation.

  1. Three Packets of Minerals of the Periodic Table of Chemical Elements and Chemical Compounds

    E-Print Network [OSTI]

    Mikhail M. Labushev

    2013-03-20T23:59:59.000Z

    The concepts of alpha- and beta-packets of the periodic table of chemical elements and chemical compounds are defined. The first of the 47 minerals alpha-packets is composed. In it all minerals are arranged in increasing Iav index of proportionality of atomic weights of composing chemical elements, the same way as chemical elements are located in increasing atomic weights in the Periodic table. The packet includes 93 known minerals and two compounds - N2O5 and CO2 - being actually minerals. Beta-packet of oxides and hydroxides minerals includes 88 known minerals and five chemical compounds - N2O5, CO2, CO, SO3 and SO2. Two minerals of the packet have not been determined yet. Besides, beta-packet of minerals with sulfur, selenium or arsenic is composed, with one mineral not defined yet. The results of the calculations can be used for further development of the Periodic Table of Chemical Elements and Chemical Compounds and their properties investigation.

  2. Regulation of biological tissue mineralization through post-nucleation shielding

    E-Print Network [OSTI]

    Joshua C. Chang; Robert M. Miura

    2015-01-29T23:59:59.000Z

    In vertebrates, insufficient availability of calcium and phosphate ions in extracellular fluids leads to loss of bone density and neuronal hyper-excitability. To counteract this problem, calcium ions are present at high concentrations throughout body fluids -- at concentrations exceeding the saturation point. This condition leads to the opposite situation where unwanted mineral sedimentation may occur. Remarkably, ectopic or out-of-place sedimentation into soft tissues is rare, in spite of the thermodynamic driving factors. This fortunate fact is due to the presence of auto-regulatory proteins that are found in abundance in bodily fluids. Yet, many important inflammatory disorders such as atherosclerosis and osteoarthritis are associated with this undesired calcification. Hence, it is important to gain an understanding of the regulatory process and the conditions under which it can go awry. In this Letter, we use ideas from mean-field classical nucleation theory to study the regulation of sedimentation of calcium phosphate salts in biological tissues through the mechanism of post-nuclear shielding of nascent mineral particles by binding proteins. A critical concentration of regulatory protein is identified as a function of the physical parameters that describe the system.

  3. The effect of modifications of dietary fat, fiber and sodium with magnesium deficiency on serum lipids and minerals, tissue and femur minerals and femur load force 

    E-Print Network [OSTI]

    Howe, Cathlyn Ann

    1992-01-01T23:59:59.000Z

    THE EFFECT OF MODIFICATIONS OF DIETARY FAT, FIBER AND SODIUM WITH MAGNESIUM DEFICIENCY ON SERUM LIPIDS AND MINERALS, TISSUE AND FEMUR MINERALS AND FEMUR LOAD FORCE A Thesis by CATHLYN ANN HOWE "Submitted to the Office of Graduate Studies oz..." Texas A&M University partial fulfillment of the requirements for the degree of MASTER OF SCIENCE December 1992 Major Subject: Nutrition THE EFFECTS OF MODIFICATIONS OF DIETARY FAT, FIBER AND SODIUM WITH MAGNESIUM DEFICIENCY ON SERUM LIPIDS...

  4. Utilization of coal-associated minerals. Final report

    SciTech Connect (OSTI)

    Slonaker, J. F.; Akers, D. J.; Alderman, J. K.

    1980-01-01T23:59:59.000Z

    Under contract number DE-AS21-77ET10533 with the US-DOE several methods of utilizing coal associated by-products were examined for potential commercial use. Such use could transform a costly waste disposal situation into new materials for further use and could provide incentive for the adoption of new coal utilization processes. Several utilization processes appear to have merit and are recommended for further study. Each process is discussed separately in the text of this report. Common coal cleaning processes were also examined to determine the effect of such processes on the composition of by-products. Data obtained in this portion of the research effort are reported in the Appendix. Information of this type is required before utilization processes can be considered. A knowledge of the mineral composition of these materials is also required before even simple disposal methods can be considered.

  5. ATOMIC-LEVEL IMAGING OF CO2 DISPOSAL AS A CARBONATE MINERAL: OPTIMIZING REACTION PROCESS DESIGN

    SciTech Connect (OSTI)

    M.J. McKelvy; R. Sharma; A.V.G. Chizmeshya; H. Bearat; R.W. Carpenter

    2000-08-01T23:59:59.000Z

    Fossil fuels, especially coal, can support the energy demands of the world for centuries to come, if the environmental problems associated with CO{sub 2} emissions can be overcome. Permanent and safe methods for CO{sub 2} capture and disposal/storage need to be developed. Mineralization of stationary-source CO{sub 2} emissions as carbonates can provide such safe capture and long-term sequestration. Mg-rich lamellar-hydroxide based minerals (e.g., brucite and serpentine) offer a class of widely available, low-cost materials, with intriguing mineral carbonation potential. Carbonation of such materials inherently involves dehydroxylation, which can disrupt the material down to the atomic level. As such, controlled dehydroxylation before and/or during carbonation may provide an important parameter for enhancing carbonation reaction processes. Mg(OH){sub 2} was chosen as the model material for investigating lamellar hydroxide mineral dehydroxylation/carbonation mechanisms due to (i) its structural and chemical simplicity, (ii) interest in Mg(OH){sub 2} gas-solid carbonation as a potentially cost-effective CO{sub 2} mineral sequestration process component, and (iii) its structural and chemical similarity to other lamellar-hydroxide-based minerals (e.g., serpentine-based minerals) whose carbonation reaction processes are being explored due to their low-cost CO{sub 2} sequestration potential. Fundamental understanding of the mechanisms that govern dehydroxylation/carbonation processes is essential for cost optimization of any lamellar-hydroxide-based mineral carbonation sequestration process.

  6. Clay mineral variations in Holocene terrestrial sediments from the Indus Basin Anwar Alizai a,

    E-Print Network [OSTI]

    Clift, Peter

    Clay mineral variations in Holocene terrestrial sediments from the Indus Basin Anwar Alizai a 23 February 2012 Keywords: XRD Clay mineralogy Monsoon Himalaya Indus Delta Floodplain Fluvial processes Large rivers We employed X-ray diffraction methods to quantify clay mineral assemblages

  7. Distribution of Clay Minerals in Lower Cook Inlet and Kodiak Shelf Sediment, Alaska

    E-Print Network [OSTI]

    Distribution of Clay Minerals in Lower Cook Inlet and Kodiak Shelf Sediment, Alaska James R. llein-five surface samples from lower Cook Inlet and forty-three from Kodiak shelf, Alaska, were analyzed for clay percentages of clay minerals. This is because modern ocean currents vigorously rework surficial sediment

  8. THE LINK BETWEEN CLAY MINERAL WEATHERING AND THE FORMATION OF NI SURFACE PRECIPITATES

    E-Print Network [OSTI]

    Sparks, Donald L.

    THE LINK BETWEEN CLAY MINERAL WEATHERING AND THE FORMATION OF NI SURFACE PRECIPITATES Andreas C, Schlieren, Switzerland Spectroscopic and microscopic studies have shown that Ni and Co sorption by clay:1 or 2:1 phyllosilicates requires the release ofA1 and Si from clay minerals. Due to similar metal

  9. Minerals to Dairy Cows with Focus on Calcium and Magnesium Balance

    E-Print Network [OSTI]

    Minerals to Dairy Cows with Focus on Calcium and Magnesium Balance Cecilia Kronqvist Faculty;Minerals to Dairy Cows with Focus on Calcium and Magnesium Balance Abstract Both clinical and subclinical decreased plasma calcium levels and activated the calcium homeostatic mechanisms. However, there were

  10. International Workshop on ecological aspects on underground mining of usable minerals deposits,

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    International Workshop on ecological aspects on underground mining of usable minerals deposits, GIG Ecological aspects of underground mining of usable minerals deposits, Szczyrk : Poland (1993)" #12;2/12 I and exemplary programme for the reclamation of opencast mining sites at the Herault Operations Unit

  11. Reduced adsorption of caesium on clay minerals caused by various humic substances

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Reduced adsorption of caesium on clay minerals caused by various humic substances C. Dumat, S!ect of the addition of various humic substances on the adsorption of caesium on two mineral clays has been studied the amount of humic substance adsorbed and the decrease in Cs adsorption when all complexes were considered

  12. An epidemiological study of salt miners in diesel and nondiesel mines

    SciTech Connect (OSTI)

    Gamble, J.; Jones, W.; Hudak, J.

    1983-01-01T23:59:59.000Z

    A cross-sectional study of 5 NaCl mines and 259 miners addressed the following questions: 1) Is there an association of increased respiratory symptoms, radiographic findings, and reduced pulmonary function with exposure to nitrogen dioxide (NO2) and/or respirable particulate (RP) among these miners. 2) Is there increased morbidity of these miners compared to other working populations. Personal samples of NO2 and respirable particulate for jobs in each mine were used to estimate cumulative exposure. NO2 is used as a surrogate measure of diesel exposure. Cough was associated with age and smoking, dyspnea with age; neither symptom was associated with exposure (years worked, estimated cumulative NO2 or RP exposure). Phlegm was associated with age, smoking, and exposure. Reduced pulmonary function (FVC, FEV1, peak, flow, FEF50, FEF75) showed no association with exposure. There was one case of small rounded and one case of small irregular opacities; pneumoconiosis was not analyzed further. Compared to underground coal miners, above ground coal miners, potash miners, and nonmining workers, the study population after adjustment for age and smoking generally showed no increased prevalence of cough, phlegm, dyspnea, or obstruction (FEV1/FVC less than 0.7). Obstruction in younger salt miners and phlegm in older salt miners was elevated compared to nonmining workers. Mean predicted pulmonary function was reduced 2-4% for FEV1 and FVC, 7-13% for FEF50, and 18-22% for FEF75 below all comparison populations.

  13. U.S. GEOLOGICAL SURVEY--MINERALS INFORMATION 1 By Joyce A. Ober

    E-Print Network [OSTI]

    U.S. GEOLOGICAL SURVEY--MINERALS INFORMATION 1 LITHIUM By Joyce A. Ober The United States has been sell lithium as mineral concentrate, brine, compound, data for lithium from a voluntary survey of U of the material to determine if sales of the mercury-contaminated material presented a risk to environmental

  14. Local coordination of Zn in hydroxy-interlayered minerals and implications for Zn retention in soils

    E-Print Network [OSTI]

    -interlayered minerals (HIM) for Zn retention in contaminated soils. Published and newly collected extended XLocal coordination of Zn in hydroxy-interlayered minerals and implications for Zn retention. In a second part, we determined the spe- ciation of Zn in eight contaminated soils (251­1039 mg/kg Zn

  15. Geophysical inversion in an integrated mineral exploration program: examples from the San Nicolas deposit

    E-Print Network [OSTI]

    Oldenburg, Douglas W.

    Geophysical inversion in an integrated mineral exploration program: examples from the San Nicol´as deposit Nigel Phillips and Douglas W. Oldenburg, UBC-Geophysical Inversion Facility, University of British of the subsurface from surface geophysical data, coupled with an increasing need to explore for minerals

  16. U.S. Geological Survey Energy and Minerals Science Strategy--A Resource Lifecycle Approach

    E-Print Network [OSTI]

    Torgersen, Christian

    U.S. Geological Survey Energy and Minerals Science Strategy--A Resource Lifecycle Approach Circular, Tuktu Bluff, Alaska. Photograph by Dave Houseknecht, USGS. #12;U.S. Geological Survey Energy and Minerals Science Strategy--A Resource Lifecycle Approach By Richard C. Ferrero, Jonathan J. Kolak, Donald J

  17. Fibrous-clay mineral formation and soil evolution in Aridisols of northeastern Patagonia, Argentina

    E-Print Network [OSTI]

    Ahmad, Sajjad

    Fibrous-clay mineral formation and soil evolution in Aridisols of northeastern Patagonia, Argentina Patagónico, CONICET, Avd. Brown s/n, 9120, Puerto Madryn, Chubut, Argentina b Departamento de Edafología, EPS horizons; Chubut province of Argentina 1. Introduction Palygorskite and sepiolite are clay minerals

  18. Monthly variation in crude protein, fibre fractions and mineral composition of paragrass (Brachiaria mutica (Forsk)

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Monthly variation in crude protein, fibre fractions and mineral composition of paragrass variation in crude protein, fibre fractions and mineral composition of forages collected in the pastures. The samples were dried, ground and analysed for crude protein (CP), neutral detergent fibre (NDF), acid

  19. Long-term impact of a leaf miner outbreak on the performance of quaking aspen

    E-Print Network [OSTI]

    Ickert-Bond, Steffi

    ARTICLE Long-term impact of a leaf miner outbreak on the performance of quaking aspen Diane Wagner and Patricia Doak Abstract: The aspen leaf miner, Phyllocnistis populiella Cham., has caused widespread and severe damage to aspen in the boreal forests of western North America for over a decade. We suppressed P

  20. Societal demand for increasing mineral resources Canada has made significant contributions

    E-Print Network [OSTI]

    Michelson, David G.

    Societal demand for increasing mineral resources Canada has made significant contributions. The discovery of new mineral resources requires increasing risk, increasing costs, and increasingly effective Vancouver has long been a global leader continue to affect society through aspects as varied as high metal

  1. Global Mineral Resource Assessment Potash--A Global Overview of Evaporite-Related Potash

    E-Print Network [OSTI]

    Fleskes, Joe

    Global Mineral Resource Assessment Potash--A Global Overview of Evaporite-Related Potash Resources intentionally left blank. #12;Global Mineral Resource Assessment Michael L. Zientek, Jane M. Hammarstrom, and Kathleen M. Johnson, editors Potash--A Global Overview of Evaporite-Related Potash Resources, Including

  2. R E V I E W Mineral soil carbon fluxes in forests and implications for

    E-Print Network [OSTI]

    Vermont, University of

    not considered in accounting for global C fluxes because mineral soil C is commonly thought to be relativelyR E V I E W Mineral soil carbon fluxes in forests and implications for carbon balance assessments of Environment and Natural Resources, 209 Hills Building, University of Vermont, 81 Carrigan Drive, Burlington

  3. Dissolution Kinetics of Calcium Carbonate Minerals A.V. Subhas1

    E-Print Network [OSTI]

    Simon, Emmanuel

    Dissolution Kinetics of Calcium Carbonate Minerals A.V. Subhas1 *, N.E. Rollins2 , W. Berelson2 , J@gps.caltech.edu We present a novel measurement of the dissolution kinetics of calcium carbonate minerals in seawater. These experiments significantly impact our understanding of calcium carbonate response to ocean acidification, water

  4. Borehole Miner - Extendible Nozzle Development for Radioactive Waste Dislodging and Retrieval from Underground Storage Tanks

    SciTech Connect (OSTI)

    CW Enderlin; DG Alberts; JA Bamberger; M White

    1998-09-25T23:59:59.000Z

    This report summarizes development of borehole-miner extendible-nozzle water-jetting technology for dislodging and retrieving salt cake, sludge} and supernate to remediate underground storage tanks full of radioactive waste. The extendible-nozzle development was based on commercial borehole-miner technology.

  5. Structure and Dynamics of Monolayer Growth at Mineral-Water Interfaces

    E-Print Network [OSTI]

    Richmond, Geraldine L.

    Structure and Dynamics of Monolayer Growth at Mineral-Water Interfaces Geri Richmond Department insights into structure and dynamics of these interfaces. The driving forces behind adsorption at mineral an important role. In this presentation I will describe our recent studies measuring the structure and dynamics

  6. Thermodynamic stabilities of U(VI) minerals: Estimated and observed relationships

    SciTech Connect (OSTI)

    Finch, R.J. [Univ. of Manitoba, Winnipeg, Manitoba (Canada)

    1996-12-31T23:59:59.000Z

    Gibbs free energies of formation ({Delta}G{degree}{sub f}) for several structurally related U(VI) minerals are estimated by summing the Gibbs energy contributions from component oxides. The estimated {Delta}G{degree}{sub f} values are used to construct activity-activity (stability) diagrams, and the predicted stability fields are compared with observed mineral occurrences and reaction pathways. With some exceptions, natural occurrences agree well with the mineral stability fields estimated for the systems SiO{sub 2}-CaO-UO{sub 3}-H{sub 2}O and CO{sub 2}-CaO-UO{sub 3}H{sub 2}O, providing confidence in the estimated thermodynamic values. Activity-activity diagrams are sensitive to small differences in {Delta}G{degree}{sub f} values, and mineral compositions must be known accurately, including structurally bound H{sub 2}O. The estimated {Delta}G{degree}{sub f} values are not considered reliable for a few minerals for two major reasons: (1) the structures of the minerals in question are not closely similar to those used to estimate the {Delta}G{sub f}* values of the component oxides, and/or (2) the minerals in question are exceptionally fine grained, leading to large surface energies that increase the effective mineral solubilities. The thermodynamic stabilities of uranium(VI) minerals are of interest for understanding the role of these minerals in controlling uranium concentrations in oxidizing groundwaters associated with uranium ore bodies, uranium mining and mill tailings and geological repositories for nuclear waste.

  7. Spectroscopic and X-ray diffraction investigation of the behavior of hanksite and tychite at high pressures, and a model for the compressibility of sulfate minerals

    E-Print Network [OSTI]

    Palaich, SEM; Manning, CE; Schauble, E; Kavner, A

    2013-01-01T23:59:59.000Z

    Physics and Chemistry of Minerals, 37, 5, 265–282. Chen,and Smith, G.I. (1965) Mineral equilibria in the Searlesstudy of the behavior of mineral barite by X?ray dif-

  8. 069 MCNITORINGTHE GROWTH OF SEODNDARYPRECIPITATES UPON METALSORPTICN CM CLAY MINERALS AND ALUMINUM OXIDES USING X-RAY ABSORPTICN FINE STRUCIURE (XAFS)

    E-Print Network [OSTI]

    Sparks, Donald L.

    069 MCNITORINGTHE GROWTH OF SEODNDARYPRECIPITATES UPON METALSORPTICN CM CLAY MINERALS AND ALUMINUM and oxide minerals is typically fast initially, then the rates gradually diminish. In the literature on surfaces of clay minerals and aluminum oxides. #12;

  9. SECONDARY MINERALS FOUND IN CORES DC2 Al AND DC2 TAKEN FROM THE GRANDE RONDE BASALT FORMATION, PASCO BASIN, WASHINGTON

    E-Print Network [OSTI]

    Teague, L.S.

    2010-01-01T23:59:59.000Z

    of secondary and primary mineral phases in basalts of theB. , 1975. Perched silia minerals on mordenite fibers. Jour.lt;. UC—70 I SECONDARY MINERALS FOUND IN CORES DC2 AI AND

  10. Accessory mineral U–Th–Pb ages and 40Ar/39Ar eruption chronology, and their bearing on rhyolitic magma evolution in the Pleistocene Coso volcanic field, California

    E-Print Network [OSTI]

    Simon, Justin I.; Vazquez, Jorge A.; Renne, Paul R.; Schmitt, Axel K.; Bacon, Charles R.; Reid, Mary R.

    2009-01-01T23:59:59.000Z

    Contrib Mineral Petrol (2009) 158:421–446 DOIAZ, USA Contrib Mineral Petrol (2009) 158:421–446 magmabatholith. Contrib Mineral Petrol 133(1–2):169–185. doi:

  11. Communication : 9th CANMET [Canada Centre for Mineral and Energy Technology] /ACI [American Concrete Institute] (International Conference on Superplasticizers and other Chemical Admixtures in

    E-Print Network [OSTI]

    Boyer, Edmond

    Communication : 9th CANMET [Canada Centre for Mineral and Energy Technology] /ACI [American for Mineral and Energy Technology] /ACI [American Concrete Institute] (International Conference (Canada Centre for Mineral and Energy Technology) /ACI (American Concrete Institute) (International

  12. Nature Macmillan Publishers Ltd 1997 of composition, temperature, oxygen fugacity and pressure on their redox states. Contrib. Mineral.

    E-Print Network [OSTI]

    Dominey, Peter F.

    on their redox states. Contrib. Mineral. Petrol. 108, 82­92 (1991). 22. Eggler, D. H. & Lorand, J. P. Sulfides

  13. ENVR Dionysios Dionysiou Wednesday, August 22, 2012 261 -Arsenic mobilization in the critical zone: Oxidation by manganese oxide minerals

    E-Print Network [OSTI]

    Sparks, Donald L.

    : Oxidation by manganese oxide minerals Jason S. Fischel1, fischelj@udel.edu, Matthew H. Fischel1, Brandon J, biogenic and abiotic. Five Mn oxide minerals were reacted under identical conditions with equal reactivity, due to passivation. Understanding the reactivity of naturally occurring Mn oxide minerals

  14. The use of micro-FTIR to characterize soil minerals and Boron adsorption S. Pittiglio and H.E. Doner

    E-Print Network [OSTI]

    The use of micro-FTIR to characterize soil minerals and Boron adsorption S. Pittiglio and H in soils. Our goals for this last proposal period were: 1) to build a spectral library of clay minerals, oxides and boron containing minerals commonly found in California soils. This library would be used

  15. Start | Author Index 784-2 Molecular Mechanisms of Glutamic and Aspartic Acid Sorption to Oxyhydroxide Minerals.

    E-Print Network [OSTI]

    Sparks, Donald L.

    to Oxyhydroxide Minerals. Thursday, 9 October 2008: 8:45 AM George R. Brown Convention Center, 381A Sanjai J sorption to mineral surfaces is important for understanding bacterial adhesion, biomolecule transport, mineral dissolution, elemental cycling, and the origin of life. The amino acids, glutamic and aspartic

  16. Phosphate-induced lead immobilization from different lead minerals in soils under varying pH conditions

    E-Print Network [OSTI]

    Ma, Lena

    Pb minerals in soils under varying pHs. Four soils were used, including one Pb-contaminated soil (NC. Keywords: Immobilization; Lead minerals; Contaminated soil; Phosphate; pH 1. Introduction Both laboratory immobilization is the limited solubility of Pb minerals in contaminated soils. In Pb-contaminated soils, Pb

  17. Relations between Au / Sn-W mineralizations and late hercynian granite: Preliminary results from the Schistose Domain of Galicia-

    E-Print Network [OSTI]

    Boyer, Edmond

    Relations between Au / Sn-W mineralizations and late hercynian granite: Preliminary results from, mesothermal mineralization, late hercynian granites, hydrothermalism, Galicia, Spain ABSTRACT : Au and W-Sn mineralization of the Schistose Domain of Galicia-Trás-os-Montes are spatially related to late hercynian granites

  18. Abstract, Joint Annual Mtg, GAC and MAC, 2012. Borate Minerals; Hilgardite, Veatchite and Volkovskite from Marine Evaporite Deposits of New

    E-Print Network [OSTI]

    understanding of crystal structure of borate minerals and the development of efficient extraction techniquesAbstract, Joint Annual Mtg, GAC and MAC, 2012. Borate Minerals; Hilgardite, Veatchite composition, and optical and Xray crystallographic data were collected for borate minerals; hilgardite (Ca2B2

  19. TITANIUM MINERAL CONCENTRATES1 (Data in thousand metric tons of contained TiO2 unless otherwise noted)

    E-Print Network [OSTI]

    174 TITANIUM MINERAL CONCENTRATES1 (Data in thousand metric tons of contained TiO2 unless otherwise-mining operations in Florida and Virginia. The value of titanium mineral concentrates consumed in the United States 94% of titanium mineral concentrates was consumed by domestic titanium dioxide (TiO2) pigment

  20. TITANIUM MINERAL CONCENTRATES1 (Data in thousand metric tons of contained TiO2 unless otherwise noted)

    E-Print Network [OSTI]

    174 TITANIUM MINERAL CONCENTRATES1 (Data in thousand metric tons of contained TiO2 unless otherwise-mining operations in Florida and Virginia. The value of titanium mineral concentrates consumed in the United States 95% of titanium mineral concentrates was consumed by domestic titanium dioxide (TiO2) pigment