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Sample records for ruapehu volcano taupo

  1. Chronology and dynamics of a large silicic magmatic system. Central Taupo volcanic zone, New Zealand

    SciTech Connect (OSTI)

    Houghton, B.F.; Wilson, C.J.N. (Wairakei Research Center, Taupo (New Zealand)); McWilliams, M.O. (Stanford Univ., CA (United States)); Lanphere, M.A.; Pringle, M.S. (Geological Survey, Menlo Park, CA (United States)); Weaver, S.D. (Univ. of Canterbury, Christchurch (New Zealand)); Briggs, R.M. (Univ. of Waikato, Hamilton (New Zealand))

    1995-01-01

    The central Taupo Volcanic Zone in New Zealand is a region of intense Quaternary silicic volcanism accompanying rapid extension of continental crust. At least 34 caldera-forming ignimbrite eruptions have produced a complex sequence of relatively short-lived, nested, and/or overlapping volcanic centers over 1.6 m.y. Silicic volcanism at Taupo is similar to the Yellowstone system in size, longevity, thermal flux, and magma output rate. However, Taupo contrasts with Yellowstone in the exceptionally high frequency, but small size, of caldera-forming eruptions. This contrast reflects the thin, rifted nature of the crust, which precludes the development of long-term magmatic cycles at Taupo. 11 refs., 4 figs., 1 tab.

  2. Geothermal waters from the Taupo Volcanic Zone, New Zealand: Li,1 B and Sr isotopes characterization2

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 Geothermal waters from the Taupo Volcanic Zone, New Zealand: Li,1 B and Sr isotopes 13 In this study, we report chemical and isotope data for 23 geothermal water samples collected geothermal waters collected from deep boreholes16 in different geothermal fields (Ohaaki, Wairakei, Mokai

  3. Ice-volcano interactions Eyjafjallajkull volcano, Iceland

    E-Print Network [OSTI]

    Berthier, Etienne

    Ice-volcano interactions in Eyjafjallajökull volcano, Iceland Eyjólfur Magnússon1, Magnús Tumi Sciences, University of Iceland, Reykjavík, Iceland 2. Institute of Earth Sciences, University of Iceland, Reykjavík, Iceland 3. Icelandic Coast Guard SPIRIT workshop 29&30 April 2010, Toulouse Picture by Eyjólfur

  4. Validation of Innovative Exploration Technologies for Newberry Volcano: LIDAR of Newberry Volcano 2012

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

    Jaffe, Todd

    2012-01-01

    Validation of Innovative Exploration Technologies for Newberry Volcano: LIDAR of Newberry Volcano 2012

  5. Validation of Innovative Exploration Technologies for Newberry Volcano: LIDAR of Newberry Volcano 2012

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

    Jaffe, Todd

    Validation of Innovative Exploration Technologies for Newberry Volcano: LIDAR of Newberry Volcano 2012

  6. Volcanoes generate devastating waves

    SciTech Connect (OSTI)

    Lockridge, P. (National Geophysical Data Center, Boulder, CO (USA))

    1988-01-01

    Although volcanic eruptions can cause many frightening phenomena, it is often the power of the sea that causes many volcano-related deaths. This destruction comes from tsunamis (huge volcano-generated waves). Roughly one-fourth of the deaths occurring during volcanic eruptions have been the result of tsunamis. Moreover, a tsunami can transmit the volcano's energy to areas well outside the reach of the eruption itself. Some historic records are reviewed. Refined historical data are increasingly useful in predicting future events. The U.S. National Geophysical Data Center/World Data Center A for Solid Earth Geophysics has developed data bases to further tsunami research. These sets of data include marigrams (tide gage records), a wave-damage slide set, digital source data, descriptive material, and a tsunami wall map. A digital file contains information on methods of tsunami generation, location, and magnitude of generating earthquakes, tsunami size, event validity, and references. The data can be used to describe areas mot likely to generate tsunamis and the locations along shores that experience amplified effects from tsunamis.

  7. Volcano Hazards at Fuego and Acatenango, GuatemalaVolcano Hazards at Fuego and Acatenango, GuatemalaVolcano Hazards at Fuego and Acatenango, GuatemalaVolcano Hazards at Fuego and Acatenango, GuatemalaVolcano Hazards at Fuego and Acatenango, Guatemala 1111

    E-Print Network [OSTI]

    Rose, William I.

    Volcano Hazards at Fuego and Acatenango, GuatemalaVolcano Hazards at Fuego and Acatenango, GuatemalaVolcano Hazards at Fuego and Acatenango, GuatemalaVolcano Hazards at Fuego and Acatenango, GuatemalaVolcano Hazards at Fuego and Acatenango, Guatemala 11111 Open-File Report 01­431Open-File Report 01

  8. The youngest eruptions and edifice collapse of Iriga volcano, Philippines

    E-Print Network [OSTI]

    Belousov, Alexander

    The youngest eruptions and edifice collapse of Iriga volcano, Philippines Alexander Belousov 1 of Volcanology and Seismology, Petropavlovsk, Russia, 3 ­ University of Philippines Iriga volcano has a prominent

  9. The deep structure of Axial Volcano Michael West

    E-Print Network [OSTI]

    West, Michael

    available on Web #12;The deep structure of Axial Volcano IV. Magma Reservoir beneath Axial Volcano AxialThe deep structure of Axial Volcano Michael West Thesis defense, June 4, 2001 #12;Motivation What at Axial may be interpreted (NeMO, Neptune) #12;The deep structure of Axial Volcano IV. Magma Reservoir

  10. Volcano-earthquake interaction at Mauna Loa volcano, Hawaii Thomas R. Walter1,2

    E-Print Network [OSTI]

    Amelung, Falk

    Volcano-earthquake interaction at Mauna Loa volcano, Hawaii Thomas R. Walter1,2 and Falk Amelung1 into the Southwest Rift Zone (SWRZ) or into the Northeast Rift Zone (NERZ) and by large earthquakes at the basal decollement fault. In this paper we examine the historic eruption and earthquake catalogues, and we test

  11. AN ISOTOPE HYDROLOGY STUDY OF THE KILAUEA VOLCANO AREA, HAWAII

    E-Print Network [OSTI]

    AN ISOTOPE HYDROLOGY STUDY OF THE KILAUEA VOLCANO AREA, HAWAII STUDY OF THE KILAUEA VOLCANO AREA, HAWAII M.A. Scholl, S.E. Ingebritsen, C.J. Janik, and J.P. Kauahikaua

  12. Short communication Observations of eruptive activity at Santiaguito volcano, Guatemala

    E-Print Network [OSTI]

    Rose, William I.

    Short communication Observations of eruptive activity at Santiaguito volcano, Guatemala Gregg J volcano, Guatemala, from the vantage point of its parent, Santa Mari´a. We have taken 12 h of digital

  13. The origin of the Hawaiian Volcano Observatory

    SciTech Connect (OSTI)

    Dvorak, John [University of Hawaii's Institute for Astronomy (United States)

    2011-05-15

    I first stepped through the doorway of the Hawaiian Volcano Observatory in 1976, and I was impressed by what I saw: A dozen people working out of a stone-and-metal building perched at the edge of a high cliff with a spectacular view of a vast volcanic plain. Their primary purpose was to monitor the island's two active volcanoes, Kilauea and Mauna Loa. I joined them, working for six weeks as a volunteer and then, years later, as a staff scientist. That gave me several chances to ask how the observatory had started.

  14. PUBLICATIONS OF THE VOLCANO HAZARDS PROGRAM

    E-Print Network [OSTI]

    : Geophysical Research Letters, v. 25, p. 3397-3400. Bacon, C. R., Bruggman, P. E., Christiansen, R. L., Clynne-423. Bacon, C. R., Gunn, S. H., Lanphere, M. A., and Wooden, J. L., 1994, Multiple isotopic components-1556. Bacon, C. R., Mastin, L. G., Scott, K. M., and Nathenson, Manuel, 1997, Volcano and earthquake hazards

  15. Geothermal Exploration of Newberry Volcano, Oregon

    SciTech Connect (OSTI)

    Waibel, Albert F.; Frone, Zachary S.; Blackwell, David D.

    2014-12-01

    Davenport Newberry (Davenport) has completed 8 years of exploration for geothermal energy on Newberry Volcano in central Oregon. Two deep exploration test wells were drilled by Davenport on the west flank of the volcano, one intersected a hydrothermal system; the other intersected isolated fractures with no hydrothermal interconnection. Both holes have bottom-hole temperatures near or above 315°C (600°F). Subsequent to deep test drilling an expanded exploration and evaluation program was initiated. These efforts have included reprocessing existing data, executing multiple geological, geophysical, geochemical programs, deep exploration test well drilling and shallow well drilling. The efforts over the last three years have been made possible through a DOE Innovative Exploration Technology (IET) Grant 109, designed to facilitate innovative geothermal exploration techniques. The combined results of the last 8 years have led to a better understanding of the history and complexity of Newberry Volcano and improved the design and interpretation of geophysical exploration techniques with regard to blind geothermal resources in volcanic terrain.

  16. Aster Watches The World'S Volcanoes- A New Paradigm For Volcanological...

    Open Energy Info (EERE)

    Volcanoes- A New Paradigm For Volcanological Observations From Orbit Abstract Onboard NASA Terra spacecraft is one of the most sophisticated earth observing instruments ever...

  17. When mud volcanoes sleep: Insight from seep geochemistry at the Dashgil mud volcano, Azerbaijan

    E-Print Network [OSTI]

    Svensen, Henrik

    Petroleum Research, Oslo Research Park, 0349 Oslo, Norway c Geology Institute Azerbaijan, Husein Avenue 29A, and petroleum. However, the source of the fluids and the fluid­rock interactions within the mud volcano conduit and Indonesia (e.g. Jakubov et al.,1971; Barber et al.,1986; Cita et al.,1996; Dia et al., 1999; Isaksen et al

  18. Newberry Volcano EGS Demonstration - Phase I Results

    SciTech Connect (OSTI)

    William L. Osborn, Susan Petty, Trenton T. Cladouhos, Joe Iovenitti, Laura Nofziger, Owen Callahan, Douglas S. Perry and Paul L. Stern

    2011-10-23

    Phase I of the Newberry Volcano Enhanced Geothermal System (EGS) Demonstration included permitting, community outreach, seismic hazards analysis, initial microseismic array deployment and calibration, final MSA design, site characterization, and stimulation planning. The multi-disciplinary Phase I site characterization supports stimulation planning and regulatory permitting, as well as addressing public concerns including water usage and induced seismicity. A review of the project'Ã?Â?Ã?Â?s water usage plan by an independent hydrology consultant found no expected impacts to local stakeholders, and recommended additional monitoring procedures. The IEA Protocol for Induced Seismicity Associated with Enhanced Geothermal Systems was applied to assess site conditions, properly inform stakeholders, and develop a comprehensive mitigation plan. Analysis of precision LiDAR elevation maps has concluded that there is no evidence of recent faulting near the target well. A borehole televiewer image log of the well bore revealed over three hundred fractures and predicted stress orientations. No natural, background seismicity has been identified in a review of historic data, or in more than seven months of seismic data recorded on an array of seven seismometers operating around the target well. A seismic hazards and induced seismicity risk assessment by an independent consultant concluded that the Demonstration would contribute no additional risk to residents of the nearest town of La Pine, Oregon. In Phase II of the demonstration, an existing deep hot well, NWG 55-29, will be stimulated using hydroshearing techniques to create an EGS reservoir. The Newberry Volcano EGS Demonstration is allowing geothermal industry and academic experts to develop, validate and enhance geoscience and engineering techniques, and other procedures essential to the expansion of EGS throughout the country. Successful development will demonstrate to the American public that EGS can play a significant role in reducing foreign energy dependence, and provide clean, renewable, baseload geothermal power generation in the State of Oregon.

  19. Chemistry of spring and well waters on Kilauea Volcano, Hawaii...

    Open Energy Info (EERE)

    Chemistry of spring and well waters on Kilauea Volcano, Hawaii, and vicinity Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Chemistry of spring...

  20. Analysis Of Multiple Scattering At Vesuvius Volcano, Italy, Using...

    Open Energy Info (EERE)

    Of Multiple Scattering At Vesuvius Volcano, Italy, Using Data Of The Tomoves Active Seismic Experiment Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal...

  1. Newberry Volcano EGS Demonstration Stimulation Modeling

    SciTech Connect (OSTI)

    Trenton T. Cladouhos, Matthew Clyne, Maisie Nichols,; Susan Petty, William L. Osborn, Laura Nofziger

    2011-10-23

    As a part of Phase I of the Newberry Volcano EGS Demonstration project, several data sets were collected to characterize the rock volume around the well. Fracture, fault, stress, and seismicity data has been collected by borehole televiewer, LiDAR elevation maps, and microseismic monitoring. Well logs and cuttings from the target well (NWG 55-29) and core from a nearby core hole (USGS N-2) have been analyzed to develop geothermal, geochemical, mineralogical and strength models of the rock matrix, altered zones, and fracture fillings (see Osborn et al., this volume). These characterization data sets provide inputs to models used to plan and predict EGS reservoir creation and productivity. One model used is AltaStim, a stochastic fracture and flow software model developed by AltaRock. The software's purpose is to model and visualize EGS stimulation scenarios and provide guidance for final planning. The process of creating an AltaStim model requires synthesis of geologic observations at the well, the modeled stress conditions, and the stimulation plan. Any geomechanical model of an EGS stimulation will require many assumptions and unknowns; thus, the model developed here should not be considered a definitive prediction, but a plausible outcome given reasonable assumptions. AltaStim is a tool for understanding the effect of known constraints, assumptions, and conceptual models on plausible outcomes.

  2. REDUCING THE RISK FROM VOLCANO HAZARDS Lahars of Mount Pinatubo, Philippines

    E-Print Network [OSTI]

    REDUCING THE RISK FROM VOLCANO HAZARDS O Lahars of Mount Pinatubo, Philippines n June 15, 1991 Pinatubo on the island of Luzon in the Philippines, the volcano had been dormant for 500 years, allowing in the Philippines (Clark Air Base), were built on the broad gentle slopes surrounding the volcano. When Pinatubo

  3. Increase of shear wave velocity before the 1998 eruption of Merapi volcano (Indonesia)

    E-Print Network [OSTI]

    Snieder, Roel

    Increase of shear wave velocity before the 1998 eruption of Merapi volcano (Indonesia) U. Wegler,1 of the edifice of Merapi volcano (Java, Indonesia) before its eruption in 1998 by analyzing multiply scattered eruption of Merapi volcano (Indonesia), Geophys. Res. Lett., 33, L09303, doi:10.1029/2006GL025928. 1

  4. Investigation of the Dashigil mud volcano (Azerbaijan) using beryllium-10 K.J. Kim a,

    E-Print Network [OSTI]

    Investigation of the Dashigil mud volcano (Azerbaijan) using beryllium-10 K.J. Kim a, , M. Baskaran: Mud volcano Hydrothermal Beryllium-10 Beryllium isotopes Subduction Cosmogenic nuclide a b s t r a c Caucasus Mountains and 160 marine volcanoes (Fig. 1). Beryllium isotopes have been extensively utilized

  5. Validation of Innovative Exploration Technologies for Newberry Volcano: Map showing location of wells permitted, drilled and seismic test 2012

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

    Jaffe, Todd

    2012-01-01

    Innovative Exploration Technologies for Newberry Volcano: Map showing location of wells permitted, drilled & seismic test, 2012

  6. Validation of Innovative Exploration Technologies for Newberry Volcano: Map showing location of wells permitted, drilled and seismic test 2012

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

    Jaffe, Todd

    Innovative Exploration Technologies for Newberry Volcano: Map showing location of wells permitted, drilled & seismic test, 2012

  7. 238 U/232Th zircon geochronology for the most recent eruptions of El Chichón volcano (Chiapas, Mexico)

    E-Print Network [OSTI]

    Pack, Brenda

    2015-01-01

    predates what is recorded in eruptive stratigraphy.Chichón volcano and stratigraphy based on previous studies.

  8. Mechanical discontinuities monitoring at Merapi volcano using kinematic GPS

    E-Print Network [OSTI]

    Beauducel, François

    Mechanical discontinuities monitoring at Merapi volcano using kinematic GPS F. Beauducel a,c,*, M to precisely locate major mechanical discontinuities within the edifice. Precisely locating to evaluate potential volumes of falling material. The kinematic GPS method offers a way to partially solve

  9. LATE QUATERNARY GLACIATION OF THE ERCIYES VOLCANO, CENTRAL TURKEY

    E-Print Network [OSTI]

    Zreda, Marek

    LATE QUATERNARY GLACIATION OF THE ERCIYES VOLCANO, CENTRAL TURKEY SARIKAYA, M. Akif1, ÇINER, Attila, Turkey, aciner@hun.edu.tr, (2) Hydrology and Water Resources, Univ of Arizona, Tucson, AZ 85721 Mount Erciyes (3917 m), highest stratovolcano of Central Turkey, is located in the northeastern part

  10. The sun, volcanoes, computers and the foundations of

    E-Print Network [OSTI]

    Phipps, Steven J.

    The sun, volcanoes, computers and the foundations of palaeoclimate Steven J. Phipps Climate Change­374, 2000 #12;Climatic Change, 45, 361­374, 2000 #12;Extreme weather events of 535­536 CE · The sun was dark the Syrian · During this year [536 CE] a most dread portent took place. For the sun gave forth its light

  11. ARTICLE IN PRESS Volcano geodesy and magma dynamics in Iceland

    E-Print Network [OSTI]

    Pedersen, Rikke

    ARTICLE IN PRESS Volcano geodesy and magma dynamics in Iceland Erik Sturkell a,*, Pa´ll Einarsson b-van Dalfsen d , Alan T. Linde e , Selwyn I. Sacks e , Ragnar Stefa´nsson a a Icelandic Meteorological Office, Reykjavi´k, Bu´staðavegur 9, 150 Reykjavi´k, Iceland b Institute of Earth Sciences, University of Iceland

  12. REDUCING THE RISK FROM VOLCANO HAZARDS UNITED STATES GEOLOGICAL SURVEY

    E-Print Network [OSTI]

    systems, and cause jet engines to fail. USGS and other scientists with the Alaska Volcano Observatory eruptions. As the crew of KLM Flight 867 struggled to restart the plane's engines, "smoke" and a strong odor Mountains(7,000to11,000feethigh).Allfour engines had flamed out when the aircraft in- advertently entered

  13. Volcano-tectonic modelling of magma chambers, ring-faults, unrest, and eruptions in the Tianchi Volcano, China

    E-Print Network [OSTI]

    Sheldon, Nathan D.

    this range to AD938-946), produced between 96 and 172 km3 of deposits, or around 30 km3 of dense magma, and is one of the largest eruptions on Earth during the past 1100 years. A 5-km-diameter collapse caldera, indicating that the shallow magma chamber and/or an associated geothermal system beneath the volcano

  14. Magmatichydrothermal evolution and devolatilization beneath Merapi volcano, Indonesia

    E-Print Network [OSTI]

    as a supercritical fluid and that it subsequently exsolved into a H2O­Cl­F-rich brine and CO2­S-rich vapor. According °C fluid, although the presence of H2S, SO2 and CO2 may cause the supercritical fluid to unmix inclusions Volcanic gases Vapor-brine exsolution CO2­H2O barometry At Merapi volcano, Indonesia, explosive

  15. Summary of Pu?u ?O?o - Kupaianaha Eruption, Kilauea Volcano...

    Open Energy Info (EERE)

    Survey, 2012 DOI Not Provided Check for DOI availability: http:crossref.org Online Internet link for Summary of Puu Oo - Kupaianaha Eruption, Kilauea Volcano, Hawaii...

  16. Combined U-Th/He and 40Ar/39Ar geochronology of post-shield lavas from the Mauna Kea and Kohala volcanoes, Hawaii

    E-Print Network [OSTI]

    Aciego, S.M.

    2010-01-01

    from Hualalai Volcano, Hawaii. Geochemistry Geophysicsfrom Kilauea Volcano, Hawaii. Science 161(3846), 1132-1135.Lake Waiau, Mauna Kea, Hawaii. Pacific Science Farley K.

  17. Tephra stratigraphy and geochemistry from three Icelandic lake cores: a new method for determining source volcano of tepra layers 

    E-Print Network [OSTI]

    Jagan, Anna

    2010-01-01

    At present there is no consistent method for the identification of source volcanoes for a tephra layer found in a stratigraphy. This has led to several studies misidentifying source volcanoes. Geochemical analysis of the ...

  18. Validation of Innovative Exploration Technologies for Newberry Volcano: Raw data used to prepare the Gravity Report by Zonge 2012

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

    Jaffe, Todd

    2012-01-01

    Validation of Innovative Exploration Technologies for Newberry Volcano: Raw data used to prepare the Gravity Report by Zonge 2012

  19. Validation of Innovative Exploration Technologies for Newberry Volcano: Seismic data - raw taken by Apex Hipoint for 1st test 2012

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

    Jaffe, Todd

    2012-01-01

    Validation of Innovative Exploration Technologies for Newberry Volcano: Seismic data - raw taken by Apex Hipoint for 1st test 2012

  20. Validation of Innovative Exploration Technologies for Newberry Volcano: Seismic data - raw taken by Apex Hipoint for 1st test 2012

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

    Jaffe, Todd

    Validation of Innovative Exploration Technologies for Newberry Volcano: Seismic data - raw taken by Apex Hipoint for 1st test 2012

  1. Validation of Innovative Exploration Technologies for Newberry Volcano: Raw data used to prepare the Gravity Report by Zonge 2012

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

    Jaffe, Todd

    Validation of Innovative Exploration Technologies for Newberry Volcano: Raw data used to prepare the Gravity Report by Zonge 2012

  2. Preliminary analysis of volcanoseismic signals recorded at the Tatun Volcano Group, northern Taiwan

    E-Print Network [OSTI]

    Lin, Cheng-Horng

    ] The Tatun Volcano Group lies at the northern tip of Taiwan only 15 km north of the capital Taipei. A seismic in 2003 in order to monitor the seismic activity of the area. It recorded a variety of events including that the Tatun volcanoes are extinct and prompt for a thorough assessment of the volcanic hazard for this area

  3. Observing Iceland's Eyjafjallajkull 2010 eruptions with the autonomous NASA Volcano Sensor Web

    E-Print Network [OSTI]

    Wright, Robert

    Observing Iceland's Eyjafjallajökull 2010 eruptions with the autonomous NASA Volcano Sensor Web, the Hyperion hyperspectral imager and Advanced Land Imager (ALI) on NASA's Earth Observing 1 (EO-1) spacecraft by using the autonomously operating NASA Volcano Sensor Web (VSW). The VSW incorporates notifications

  4. SO2 emissions to the atmosphere from active volcanoes in Guatemala and El Salvador, 19992002

    E-Print Network [OSTI]

    Rose, William I.

    SO2 emissions to the atmosphere from active volcanoes in Guatemala and El Salvador, 1999 INSIVUMEH, 7a Avenida 14-57 Zona 13, Ciudad de Guatemala, Guatemala, Central America c Servicio Nacional de-based and aircraft correlation spectrometer (COSPEC) measurements at the principal active volcanoes in Guatemala

  5. Seismic characterization of the fall 2007 eruptive sequence at Bezymianny Volcano, Russia

    E-Print Network [OSTI]

    West, Michael

    Seismic characterization of the fall 2007 eruptive sequence at Bezymianny Volcano, Russia Weston of Geophysical Services, Russian Academy of Sciences, Petropavlosk, Russia d Cascade Volcano Observatory, United classification scheme. Low-frequency tremor, interpreted as gas escape, and low-frequency earthquakes

  6. Hawaii Volcanoes National Park Traffic and Parking: Current Issues, Future Solutions Hawaii Volcanoes National Park (HAVO) is experiencing increased visitor use and congestion/

    E-Print Network [OSTI]

    Prevedouros, Panos D.

    Hawaii Volcanoes National Park Traffic and Parking: Current Issues, Future Solutions Hawaii, and unsafe practices. This project will record and analyze these issues. NPS staff and University of Hawaii

  7. Seismicity and structure of Akutan and Makushin Volcanoes, Alaska, using joint body and surface wave tomography

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

    Syracuse, E. M.; Maceira, M.; Zhang, H.; Thurber, C. H.

    2015-02-18

    Joint inversions of seismic data recover models that simultaneously fit multiple constraints while playing upon the strengths of each data type. Here, we jointly invert 14 years of local earthquake body wave arrival times from the Alaska Volcano Observatory catalog and Rayleigh wave dispersion curves based upon ambient noise measurements for local Vp, Vs, and hypocentral locations at Akutan and Makushin Volcanoes using a new joint inversion algorithm.The velocity structure and relocated seismicity of both volcanoes are significantly more complex than many other volcanoes studied using similar techniques. Seismicity is distributed among several areas beneath or beyond the flanks ofmore »both volcanoes, illuminating a variety of volcanic and tectonic features. The velocity structures of the two volcanoes are exemplified by the presence of narrow high-Vp features in the near surface, indicating likely current or remnant pathways of magma to the surface. A single broad low-Vp region beneath each volcano is slightly offset from each summit and centered at approximately 7 km depth, indicating a potential magma chamber, where magma is stored over longer time periods. Differing recovery capabilities of the Vp and Vs datasets indicate that the results of these types of joint inversions must be interpreted carefully.« less

  8. Seismicity and structure of Akutan and Makushin Volcanoes, Alaska, using joint body and surface wave tomography

    SciTech Connect (OSTI)

    Syracuse, E. M.; Maceira, M.; Zhang, H.; Thurber, C. H.

    2015-02-18

    Joint inversions of seismic data recover models that simultaneously fit multiple constraints while playing upon the strengths of each data type. Here, we jointly invert 14 years of local earthquake body wave arrival times from the Alaska Volcano Observatory catalog and Rayleigh wave dispersion curves based upon ambient noise measurements for local Vp, Vs, and hypocentral locations at Akutan and Makushin Volcanoes using a new joint inversion algorithm.The velocity structure and relocated seismicity of both volcanoes are significantly more complex than many other volcanoes studied using similar techniques. Seismicity is distributed among several areas beneath or beyond the flanks of both volcanoes, illuminating a variety of volcanic and tectonic features. The velocity structures of the two volcanoes are exemplified by the presence of narrow high-Vp features in the near surface, indicating likely current or remnant pathways of magma to the surface. A single broad low-Vp region beneath each volcano is slightly offset from each summit and centered at approximately 7 km depth, indicating a potential magma chamber, where magma is stored over longer time periods. Differing recovery capabilities of the Vp and Vs datasets indicate that the results of these types of joint inversions must be interpreted carefully.

  9. Anomalously High B-Values In The South Flank Of Kilauea Volcano...

    Open Energy Info (EERE)

    Anomalously High B-Values In The South Flank Of Kilauea Volcano, Hawaii- Evidence For The Distribution Of Magma Below Kilauea'S East Rift Zone Jump to: navigation, search OpenEI...

  10. Magmatic History Of The East Rift Zone Of Kilauea Volcano, Hawaii...

    Open Energy Info (EERE)

    Magmatic History Of The East Rift Zone Of Kilauea Volcano, Hawaii Based On Drill Core From SOH 1 Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article:...

  11. Swiss Geoscience Meeting, Lugano 2008 Simulation for a volcano monitoring network

    E-Print Network [OSTI]

    of up to 10 cm with the displacement of the vertical components typically in the range of 4 to 6 cm per types for volcano monitoring (e.g., seismicity, ground surface deformation, geothermal, gravity

  12. Eruptions of volcanoes in Iceland: Katla and Eyjafjallojokull P.M.E.Altham, University of Cambridge.

    E-Print Network [OSTI]

    Altham, Pat

    Eruptions of volcanoes in Iceland: Katla and Eyjafjalloj¨okull P.M.E.Altham, University to Iceland). Comment. Does the Duration of an eruption increase as the corresponding ReposeTime increases

  13. Structure Of The Lower East Rift Zone Of Kilauea Volcano, Hawaii...

    Open Energy Info (EERE)

    Structure Of The Lower East Rift Zone Of Kilauea Volcano, Hawaii, From Seismic And Gravity Data Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article:...

  14. A 3D Magnetic Structure Of Izu-Oshima Volcano And Their Changes...

    Open Energy Info (EERE)

    Volcano has a mean magnetization intensity ranging from 10.4 to 12.1 Am. The derived 3D magnetic structure shows low magnetization zones beneath the west-northwest of the...

  15. Hydrogeochemical exploration of the Tecuamburro Volcano region, Guatemala

    SciTech Connect (OSTI)

    Goff, F.; Truesdell, A.H.; Janik, C.J.; Adams, A.; Roldan-M, A.; Meeker, K. (Los Alamos National Lab., NM (USA); Geological Survey, Menlo Park, CA (USA); Los Alamos National Lab., NM (USA); Instituto Nacional de Electrificacion, Guatemala City (Guatemala). Unidad de Desarollo Geotermico; Los Alamos National Lab., NM (USA))

    1989-01-01

    Approximately 100 thermal and nonthermal water samples and 20 gas samples from springs and fumaroles have been chemically and isotopically analyzed to help evaluate the geothermal potential of the Tecuamburro Volcano region, Guatemala. Thermal waters of the acid- sulfate, steam condensate, and neutral-chloride types generally occur in restricted hydrogeologic areas: Tecuamburro-Laguna Ixpaco (acid- sulfate); andesite highland north of Tecuamburro (steam-condensate); Rio Los Esclavos (neutral-chloride). One small area of neutral-chloride springs east of the village of Los Esclavos has no relation to the Tecuamburro geothermal system. Neutral-chloride springs on the Rio Los Esclavos east and southeast of Tecuamburro show mixing with various types of groundwaters and display a maximum oxygen-18 enrichment compared to the world meteoric line of only about 1.5 parts per thousand. Maximum estimated subsurface temperatures are {le}200{degree}C. In contrast, maximum estimated subsurface temperatures based on gas compositions in the Laguna Ixpaco area are about 300{degree}C. The relation of neutral-chloride waters to the overall Tecuamburro geothermal system is not entirely resolved but we have suggested two system models. Regardless of model, we believe that a first exploration drill hole should be sited within 0.5 km of Laguna Ixpaco to tap the main geothermal reservoir or its adjacent, main upflow zone. 9 refs., 4 figs., 3 tabs.

  16. Hydrothermal changes related to earthquake activity at Mud Volcano, Yellowstone National Park, Wyoming

    SciTech Connect (OSTI)

    Pitt, A.M.; Hutchinson, R.A.

    1982-04-10

    The Mud Volcano hydrothermal area in Yellowstone National Park is near the intersection of a 20-km-long zone of northeast trending normal faults with the eastern resurgent dome within the 600,000-year-odd Yellowstone caldera. Recent crustal uplift along the northeast trending axis of the caldera is at a maximum (700 mm since 1923) near the Mud Volcano area. From 1973 through April 1978, less than 10 earthquakes (largest M 2.4) were located within 3 km of the Mud Volcano area. In May 1978, earthquakes began occurring beneath the hydrothermal area at depths of 1 to 5 km. The seismic activity continued until the end of November with intense swarms (100 events per hour) occurring on October 23 and November 7. The largest event (M 3.1) occured on November 14 and at least 8 events were M 2.5 or larger. In December 1978, heat flux in the Mud Volcano hydrothermal features began increasing along a 2-km-long northeast trending zone. Existing mud cauldrons became more active, new mud cauldrons and fumeroles were formed, and vegetation (primarily lodgepole pine) was killed by increased soil temperature. The increase in heat flux continued through July 1979 then gradually declined, reaching the early 1978 level by June 1980. The spatial and temporal association of earthquakes and increased hydrothermal activity at Mud Volcano suggests that the seismic activity expanded preexisting fracture systems, premitting increased fluid flow from depths of several kilometers.

  17. Oceanography Vol. 19, No. 1, Mar. 2006142 After lying dormant for hundreds of years, a seaside volcano erupts, splitting its cin-

    E-Print Network [OSTI]

    Grilli, Stéphan T.

    . The volcanoes on the islands of Stromboli (Tinti and Bortolucci, 2001) and La Palma in the Canary Islands (Ward

  18. Deep-Sea Research I 53 (2006) 17621771 Gouge marks on deep-sea mud volcanoes in the eastern

    E-Print Network [OSTI]

    Hooker, Sascha K.

    2006-01-01

    Deep-Sea Research I 53 (2006) 1762­1771 Gouge marks on deep-sea mud volcanoes in the eastern in the eastern Mediterranean Sea. The marks consist of a central groove (about 10 cm deep and 1­2 m long like the deep-diving whales. The characteristic high acoustic backscatter of the mud volcanoes would

  19. Measuring large topographic change with InSAR: Lava thicknesses, extrusion rate and subsidence rate at Santiaguito volcano, Guatemala

    E-Print Network [OSTI]

    Elliott, John

    at Santiaguito volcano, Guatemala S.K. Ebmeier a,n , J. Biggs b , T.A. Mather a , J.R. Elliott a , G. Wadge c , F. We apply this to Santiaguito volcano, Guatemala, and measure increases in lava thickness of up to 140

  20. Measuring Sulphur Dioxide (SO2) Emissions in October, 2010 Catastrophic Eruption from Merapi Volcano in Java, Indonesia

    E-Print Network [OSTI]

    Gilbes, Fernando

    Volcano in Java, Indonesia with Ozone Monitoring Instrument (OMI) José A. Morales-Collazo Geology This paper discusses sulfur dioxide (SO2) cloud emissions from Merapi Volcano in Java, Indonesia during, Indonesia. In October 26th , 2010, a catastrophic eruption was reported from Merapi causing nearly 386

  1. Strike-slip faulting as a trigger mechanism for overpressure release through piercement structures. Implications for the Lusi mud volcano, Indonesia

    E-Print Network [OSTI]

    Mazzini, Adriano

    . Implications for the Lusi mud volcano, Indonesia A. Mazzini a,*, A. Nermoen a , M. Krotkiewski a , Y 2009 Accepted 12 March 2009 Available online 19 March 2009 Keywords: Java, Indonesia Lusi mud volcano the newly formed Lusi mud volcano in Indonesia (Mazzini et al., 2007). Lusi became active the 29th of May

  2. Strike-slip faulting as a trigger mechanism for overpressure release through piercement structures. Implications for the Lusi mud volcano, Indonesia

    E-Print Network [OSTI]

    Podladchikov, Yuri

    . Implications for the Lusi mud volcano, Indonesia A. Mazzini a,*, A. Nermoen a , M. Krotkiewski a , Y 2009 Accepted 12 March 2009 Available online xxx Keywords: Java, Indonesia Lusi mud volcano Faulting volcano in Indonesia (Mazzini et al., 2007). Lusi became active the 29th of May 2006 on the Java Island

  3. SLOPE STABILITY ANALYSIS OF THE ILIAMNA VOLCANO, ALASKA, USING ASTER TIR, SRTM DEM, AND AEROMAGNETIC DATA

    E-Print Network [OSTI]

    areas at risk for slope failure, which correlate well to the geologic field studies. These scripts can. al. 1997). These seismic stations work well but require maintenance; after the 1996 seismic swarm risk. Many of these volcanoes will be mapped geologically for the first time during the set up

  4. On the interaction of Tropical Cyclone Flossie and emissions from Hawaii's Kilauea volcano

    E-Print Network [OSTI]

    Businger, Steven

    On the interaction of Tropical Cyclone Flossie and emissions from Hawaii's Kilauea volcano Andre Pattantyus1 and Steven Businger1 1 Department of Meteorology, University of Hawai`i at Mnoa, Honolulu, Hawaii et al. [2013]. Given the persistent northeast trade winds in Hawai`i, the emissions cause frequent

  5. Steady subsidence of Medicine Lake volcano, northern California, revealed by repeated leveling surveys

    E-Print Network [OSTI]

    Steady subsidence of Medicine Lake volcano, northern California, revealed by repeated leveling) in 1954 and 1989 show that the summit area subsided by as much as 302 ± 30 mm (À8.6 ± 0.9 mm in the earlier analysis of the same data by Dzurisin et al. [1991], who reported the subsidence rate as À11.1 ± 1

  6. Seismic interpretation and classification of mud volcanoes of the South Caspian Basin, offshore Azerbaijan. 

    E-Print Network [OSTI]

    Yusifov, Mehdi Zahid

    2005-11-01

    development in the South Caspian Basin is generally linked to faults, which in some instances are detached at the basement level. By using interpreted seismic surfaces it is possible to determine relative time of mud flows from the mud volcanoes. Timing of mud...

  7. The magmatic plumbing system beneath Santiaguito Volcano, Guatemala Jeannie A.J. Scott a,

    E-Print Network [OSTI]

    Rose, William I.

    The magmatic plumbing system beneath Santiaguito Volcano, Guatemala Jeannie A.J. Scott a, , Tamsin, Guatemala City, Guatemala a b s t r a c ta r t i c l e i n f o Article history: Received 9 September 2011 storage Ascent path The silicic dome complex of Santiaguito, Guatemala, has exhibited continuous extrusive

  8. Modeling study of growth and potential geohazard for LUSI mud volcano: East Java, Indonesia

    E-Print Network [OSTI]

    Manga, Michael

    Modeling study of growth and potential geohazard for LUSI mud volcano: East Java, Indonesia Bambang., Wisma Mulia 22nd Floor, JI. Jend. Gatot Subroto 42, 12710 Jakarta, Indonesia b Bakosurtanal, Jl. Jakarta-Bogor Km. 46, 16911 Cibinong, Indonesia c Applied Geology Research Division, Institute of Technology

  9. Triggering and dynamic evolution of the LUSI mud volcano, Indonesia A. Mazzini a,, H. Svensen a

    E-Print Network [OSTI]

    Svensen, Henrik

    Triggering and dynamic evolution of the LUSI mud volcano, Indonesia A. Mazzini a,, H. Svensen a , G Claude-Bernard UMR 5125 CNRS, 2, rue Dubois, 69622 Villeurbanne cedex, France d Volcanic Basin Petroleum Subroto 42, 12710, Jakarta Indonesia Received 20 March 2007; received in revised form 12 June 2007

  10. Evolution of large shield volcanoes on Venus Robert R. Herrick1

    E-Print Network [OSTI]

    Herrick, Robert R.

    Evolution of large shield volcanoes on Venus Robert R. Herrick1 Lunar and Planetary Institute methods. Citation: Herrick, R. R., J. Dufek, and P. J. McGovern (2005), Evolution of large shield database and expanded it to include ``Type 2'' coronae, features with minimal surface fracturing

  11. Submarine venting of liquid carbon dioxide on a Mariana Arc volcano

    E-Print Network [OSTI]

    Chadwick, Bill

    Submarine venting of liquid carbon dioxide on a Mariana Arc volcano John Lupton NOAA/Pacific Marine, Washington 98115-6349, USA Cornel de Ronde Institute of Geological and Nuclear Sciences, 30 Gracefield Road, California, 92065, USA [1] Although CO2 is generally the most abundant dissolved gas found in submarine

  12. SURFACE LOADING AFFECTS INTERNAL PRESSURE SOURCE CHARACTERISTICS DERIVED FROM VOLCANO DEFORMATION SIGNALS

    E-Print Network [OSTI]

    Grapenthin, Ronni

    for subsidence with a load will, e.g. result in values for verti- cal displacement at each grid point). Hence, short wavelength features of complex loads such as lava flows are lost in recorded deformationSURFACE LOADING AFFECTS INTERNAL PRESSURE SOURCE CHARACTERISTICS DERIVED FROM VOLCANO DEFORMATION

  13. Stress magnitude and its temporal variation at Mt. Asama Volcano, Japan, from seismic anisotropy and GPS

    E-Print Network [OSTI]

    Utrecht, Universiteit

    Stress magnitude and its temporal variation at Mt. Asama Volcano, Japan, from seismic anisotropy stress Japan The Earth's stress regime is fundamental to its physical processes, yet few methods can determine absolute stress, and measurements of temporal variations in stress are controversial. The Global

  14. ASH FALL TERMS AND PUBLIC WARNING MESSAGES DURING THE ONGOING ERUPTION OF REDOUBT VOLCANO

    E-Print Network [OSTI]

    ASH FALL TERMS AND PUBLIC WARNING MESSAGES DURING THE ONGOING ERUPTION OF REDOUBT VOLCANO The National Weather Service and AVO have developed the following terminology to describe expected ash fall events. Depending on the amount of ash expected, the National Weather Service will issue a different type

  15. TQ1. Volcanoes/Earthquakes How can we help predict and mitigate earthquake and

    E-Print Network [OSTI]

    Christian, Eric

    TQ1. Volcanoes/Earthquakes How can we help predict and mitigate earthquake and volcanic hazards potentially effective information to aid in predicting possible eruptions and improve earthquake forecasts. How can we predict and mitigate earthquake and volcanic hazards through detection of transient thermal

  16. Eruption dynamics within an emergent subglacial setting: a case study of the 2004 eruption of Grímsvötn volcano, Iceland 

    E-Print Network [OSTI]

    Jude-Eton, Tanya Chantal; Eton, Tanya Chantal Jude

    2013-07-01

    The November 2004 explosive eruption of Grímsvötn volcano, Iceland (G2004) commenced as a subglacial event within the interior of the Vatnajökull ice cap before breaking through the ice cover to generate a 6-10 km high ...

  17. Crustal-scale degassing due to magma system destabilisation and magma-gas decoupling at Soufrière Hills Volcano, Montserrat

    E-Print Network [OSTI]

    Christopher, T. E.; Blundy, J.; Cashman, K.; Cole, P.; Edmonds, M.; Smith, P. J.; Sparks, R. S. J.; Stinton, A.

    2015-06-11

    are consistent with internal modifications to the mush system, such as melt and gas migration from one level to another, but without discharge to the surface. Uranium-series isotope data indicate long crustal residence times of the andesite magma (105... for hydrothermal ore formation associated with arc volcanoes. Porphyry copper deposits are widely viewed as giant sulfur anomalies (Hunt, 1977) and are therefore likely to be related in origin to the excess sulfur phenomenon of arc volcanoes (Wallace, 2005...

  18. Ra-Th disequilibria: Timescale of carbonatite magma formation at Oldoinyo Lengai volcano, Tanzania

    SciTech Connect (OSTI)

    Williams, R.W.; Gill, J.B.; Bruland, K.W. )

    1988-04-01

    This paper discusses geologic models dealing with the formation of carbonatites from recent lavas of the Oldoninyo Lengai volcano, Tanzania. This paper also acts as a rebutal to an earlier writing which discussed potential flaws in the collection and dating of the carbonatites. The paper goes on to provide activity ratios from different carbonatites and discussion the lack of evidence for fractional crystallization in a olivine sovite magma.

  19. Application of scientific core drilling to geothermal exploration: Platanares, Honduras and Tecuamburro Volcano, Guatemala, Central America

    SciTech Connect (OSTI)

    Goff, S.J.; Goff, F.E.; Heiken, G.H. [Los Alamos National Lab., NM (United States); Duffield, W.A. [Geological Survey, Flagstaff, AZ (United States); Janik, C.J. [Geological Survey, Menlo Park, CA (United States)

    1994-04-01

    Our efforts in Honduras and Guatemala were part of the Central America Energy Resource Project (CAERP) funded by the United States Agency for International Development (AID). Exploration core drilling operations at the Platanares, Honduras and Tecuamburro Volcano, Guatemala sites were part of a geothermal assessment for the national utility companies of these countries to locate and evaluate their geothermal resources for electrical power generation. In Honduras, country-wide assessment of all thermal areas determined that Platanares was the site with the greatest geothermal potential. In late 1986 to middle 1987, three slim core holes were drilled at Platanares to a maximum depth of 680 m and a maximum temperature of 165{degree}C. The objectives were to obtain information on the geothermal gradient, hydrothermal alterations, fracturing, and possible inflows of hydrothermal fluids. Two holes produced copious amounts of water under artesian conditions and a total of 8 MW(t) of energy. Geothermal investigations in Guatemala focused on the Tecuamburro Volcano geothermal site. The results of surface geological, volcanological, hydrogeochemical, and geophysical studies at Tecuamburro Volcano indicated a substantial shallow heat source. In early 1990 we drilled one core hole, TCB-1, to 808 m depth. The measured bottom hole temperature was 238{degree}C. Although the borehole did not flow, in-situ samples indicate the hole is completed in a vapor-zone above a probable 300{degree}C geothermal reservoir.

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

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

    Jaffe, Todd

    2012-01-01

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

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

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

    Jaffe, Todd

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

  2. Tectonic versus volcanic origin of the summit depression at Medicine Lake Volcano, California

    SciTech Connect (OSTI)

    Mark Leon Gwynn

    2010-05-01

    Medicine Lake Volcano is a Quaternary shield volcano located in a tectonically complex and active zone at the transition between the Basin and Range Province and the Cascade Range of the Pacific Province. The volcano is topped by a 7x12 km elliptical depression surrounded by a discontinuous constructional ring of basaltic to rhyolitic lava flows. This thesis explores the possibility that the depression may have formed due to regional extension (rift basin) or dextral shear (pull-apart basin) rather than through caldera collapse and examines the relationship between regional tectonics and localized volcanism. Existing data consisting of temperature and magnetotelluric surveys, alteration mineral studies, and core logging were compiled and supplemented with additional core logging, field observations, and fault striae studies in paleomagnetically oriented core samples. These results were then synthesized with regional fault data from existing maps and databases. Faulting patterns near the caldera, extension directions derived from fault striae P and T axes, and three-dimensional temperature and alteration mineral models are consistent with slip across arcuate ring faults related to magma chamber deflation during flank eruptions and/or a pyroclastic eruption at about 180 ka. These results are not consistent with a rift or pull-apart basin. Limited subsidence can be attributed to the relatively small volume of ash-flow tuff released by the only known major pyroclastic eruption and is inconsistent with the observed topographic relief. The additional relief can be explained by constructional volcanism. Striae from unoriented and oriented core, augmented by striae measurements in outcrop suggest that Walker Lane dextral shear, which can be reasonably projected from the southeast, has probably propagated into the Medicine Lake area. Most volcanic vents across Medicine Lake Volcano strike north-south, suggesting they are controlled by crustal weakness related to Basin and Range extension. Interaction of dextral shear, Basin and Range extension, and the zone of crustal weakness expressed as the Mount Shasta-Medicine Lake volcanic highland controlled the location and initiation of Medicine Lake Volcano at about 500 ka.

  3. TECTONIC VERSUS VOLCANIC ORIGIN OF THE SUMMIT DEPRESSION AT MEDICINE LAKE VOLCANO, CALIFORNIA

    SciTech Connect (OSTI)

    Mark Leon Gwynn

    2010-05-01

    Medicine Lake Volcano is a Quaternary shield volcano located in a tectonically complex and active zone at the transition between the Basin and Range Province and the Cascade Range of the Pacific Province. The volcano is topped by a 7x12 km elliptical depression surrounded by a discontinuous constructional ring of basaltic to rhyolitic lava flows. This thesis explores the possibility that the depression may have formed due to regional extension (rift basin) or dextral shear (pull-apart basin) rather than through caldera collapse and examines the relationship between regional tectonics and localized volcanism. Existing data consisting of temperature and magnetotelluric surveys, alteration mineral studies, and core logging were compiled and supplemented with additional core logging, field observations, and fault striae studies in paleomagnetically oriented core samples. These results were then synthesized with regional fault data from existing maps and databases. Faulting patterns near the caldera, extension directions derived from fault striae P and T axes, and three-dimensional temperature and alteration mineral models are consistent with slip across arcuate ring faults related to magma chamber deflation during flank eruptions and/or a pyroclastic eruption at about 180 ka. These results are not consistent with a rift or pull-apart basin. Limited subsidence can be attributed to the relatively small volume of ash-flow tuff released by the only known major pyroclastic eruption and is inconsistent with the observed topographic relief. The additional relief can be explained by constructional volcanism. Striae from unoriented and oriented core, augmented by striae measurements in outcrop suggest that Walker Lane dextral shear, which can be reasonably projected from the southeast, has probably propagated into the Medicine Lake area. Most volcanic vents across Medicine Lake Volcano strike north-south, suggesting they are controlled by crustal weakness related to Basin and Range extension. Interaction of dextral shear, Basin and Range extension, and the zone of crustal weakness expressed as the Mount Shasta-Medicine Lake volcanic highland controlled the location and initiation of Medicine Lake Volcano at about 500 ka.

  4. OCEAN VOLCANO CAUGHT ON FILM Footage of a volcanic eruption nearly 1,200 metres under the sea was unveiled on 17 December at a meeting of

    E-Print Network [OSTI]

    Rosenberg, Noah

    OCEAN VOLCANO CAUGHT ON FILM Footage of a volcanic eruption nearly 1,200 metres under the sea. The high-definition film of the West Mata volcano in the western Pacific is one of the first times to raise up to US$300 million. Founded in 2005, Solyndra makes thin- film cylindrical modules for use

  5. Electrical Impedance Tomography of a Seafloor Volcano R.V. Revelle shiptime proposal submitted by David Myer, Steven Constable, and Kerry Key

    E-Print Network [OSTI]

    Key, Kerry

    Electrical Impedance Tomography of a Seafloor Volcano R.V. Revelle shiptime proposal submitted Seamount). Electrical Resistance Tomography (or ERT), also known as electrical impedance tomography will allow us to build an electrical conductivity image of a horizontal slice through the volcano at a depth

  6. Results of geothermal gradient core hole TCB-1, Tecuamburro volcano geothermal site, Guatemala, Central America

    SciTech Connect (OSTI)

    Adams, A.I.; Chipera, S.; Counce, D.; Gardner, J.; Goff, S.; Goff, F.; Heiken, G.; Laughlin, A.W.; Musgrave, J.; Trujillo, P.E. Jr. (Los Alamos National Lab., NM (United States)); Aycinena, S.; Martinelli, L. (Swissboring Overseas Corp. Ltd., Guatemala City (Guatemala)); Castaneda, O.; Revolorio, M.; Roldan, A. (Unidad de Desarrollo Geotermico, Guatemala City (Guatemala). Inst. Nacional de Electrificacion); D

    1992-02-01

    Results of geological, volcanological, hydrogeochemical, and geophysical field studies conducted in 1988 and 1989 at the Tecuamburro volcano geothermal site in Guatemala indicated that there is a substantial shallow heat source beneath the area of youngest volcanism. To obtain information on subsurface temperatures and temperature gradients, stratigraphy, hydrothermal alteration, fracturing, and possible inflows of hydrothermal fluids, a geothermal gradient core hole (TCB-1) was drilled to 808 m low on the northern flank of the Tecuamburro volcano Complex, 300 km south of a 300-m-diameter phreatic crater, Laguna Ixpaco, dated at 2,910 years. Gases from acid-sulfate springs near Laguna Ixpaco consistently yield maximum estimated subsurface temperatures of 250--300{degrees}C. The temperature versus depth curve from TCB-1 does not show isothermal conditions and the calculated thermal gradients from 500--800 m is 230{degrees}C/km. Bottom hole temperature is 238{degrees}C. Calculated heat flow values are nearly 9 heat flow units (HFU). The integration of results from the TCB-1 gradient core hole with results from field studies provides strong evidence that the Tecuamburro area holds great promise for containing a commercial geothermal resource.

  7. 2 Tilt recorded by a portable broadband seismograph: The 2003 3 eruption of Anatahan Volcano, Mariana Islands

    E-Print Network [OSTI]

    are highly sensitive to tilt, suggesting that commonly 14 deployed portable broadband seismic sensors may was recorded by a Strekheisen 19 STS-2 seismograph deployed in an underground insulated 20 chamber 7 km west volcano- 24 tectonic (VT) seismicity and is one hour prior to the 25 eruption time estimated

  8. Deep-slab fluids fuel extremophilic Archaea on a Mariana forearc serpentinite mud volcano: Ocean Drilling Program

    E-Print Network [OSTI]

    Moyer, Craig

    Deep-slab fluids fuel extremophilic Archaea on a Mariana forearc serpentinite mud volcano: Ocean, M. J., S. C. Komor, P. Fryer, and C. L. Moyer, Deep-slab fluids fuel extremophilic Archaea.5, made up overwhelmingly of Archaea, is oxidizing methane from the ascending fluid to carbonate ion

  9. Evidence for static stress changes triggering the 1999 eruption of Cerro Negro Volcano, Nicaragua and regional aftershock sequences

    E-Print Network [OSTI]

    Connor, Charles

    Evidence for static stress changes triggering the 1999 eruption of Cerro Negro Volcano, Nicaragua explain this coupling through static stress changes following three Mw 5.2 earthquakes. We use focal seismicity and volcanism, and suggests that these small changes in static stress can trigger subsequent

  10. Analyses of in-situ airborne volcanic ash from the February 2000 eruption of Hekla Volcano, Iceland

    E-Print Network [OSTI]

    Ma, Chi

    Analyses of in-situ airborne volcanic ash from the February 2000 eruption of Hekla Volcano, Iceland-8 NASA research aircraft inadvertently flew into an airborne volcanic ash plume from the 26 February spectrophotometer analyses. These analyses confirm that the DC-8 encountered airborne volcanic ash from Hekla

  11. Water content of 1997 vulcanian pumices at Soufriere Hills Volcano (Montserrat) and implications on pre-eruptive conduit conditions

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Water content of 1997 vulcanian pumices at Soufriere Hills Volcano (Montserrat) and implications of the eruptive products. We used quantitative analysis of water content in residual glasses (matrix glass. To better link water content to structural level, we performed new water solubility experiments at low

  12. Internal structure of the western flank of the Cumbre Vieja volcano, La Palma, Canary Islands, from land

    E-Print Network [OSTI]

    Jones, Alan G.

    Palma, Canary Islands, from land magnetotelluric imaging X. Garcia1,2 and A. G. Jones1 Received 9 March on the island of La Palma (Canary Islands) provides an ideal setting to address fundamental questions about (2010), Internal structure of the western flank of the Cumbre Vieja volcano, La Palma, Canary Islands

  13. Iceland is a country of breathtaking natural beauty, geothermal activity and volcanoes that, as we all know by

    E-Print Network [OSTI]

    Tradacete, Pedro

    Iceland is a country of breathtaking natural beauty, geothermal activity and volcanoes that, as we. Después de la presentación habrá un pequeño refrigerio en la Sala de reuniones. Iceland: Glaciers Reykjavik University, Iceland SEMINARIO Departamento de Sistemas Informáticos y Computación Facultad de

  14. Self-potential, soil CO2 flux, and temperature on Masaya volcano, J. L. Lewicki,1,2

    E-Print Network [OSTI]

    Connor, Charles

    , soil CO2 flux, and temperature may be a useful tool to monitor intrusive activity. INDEX TERMS: 0925 monitoring. We present soil CO2 flux, temperature, and SP data measured concurrently on the flanks of MasayaSelf-potential, soil CO2 flux, and temperature on Masaya volcano, Nicaragua J. L. Lewicki,1,2 C

  15. An evaluation of the geothermal potential of the Tecuamburro Volcano area of Guatemala

    SciTech Connect (OSTI)

    Heiken, G.; Duffield, W. (eds.)

    1990-09-01

    Radiometric ages indicate that the Tecuamburro Volcano and three adjacent lava domes grew during the last 38,300 years, and that a 360-m-wide phreatic crater, Laguna Ixpaco, was formed near the base of these domes about 2900 years ago. Laguna Ixpaco is located within the Chupadero crater, from which pyroxene pumice deposits were erupted 38,300 years ago. Thus, the likelihood is great for a partly molten or solid-but-still-hot near-surface intrusion beneath the area. Fumaroles and hot springs issue locally from the Tecuamburro volcanic complex and near Laguna Ixpaco. Analyses of gas and fluid samples from these and other nearby thermal manifestations yield chemical-geothermometer temperatures of about 150{degree} to 300{degree}C, with the highest temperatures at Ixpaco. The existence of a commercial-grade geothermal reservoir beneath the Ixpaco area seems likely. 84 refs., 70 figs., 12 tabs.

  16. UNCOVERING BURIED VOLCANOES: NEW DATA FOR PROBABILISTIC VOLCANIC HAZARD ASSESSMENT AT YUCCA MOUNTAIN

    SciTech Connect (OSTI)

    F.V. Perry

    2005-10-13

    Basaltic volcanism poses a potential hazard to the proposed Yucca Mountain nuclear waste repository because multiple episodes of basaltic volcanism have occurred in the Yucca Mountain region (YMR) in the past 11 Ma. Intervals between eruptive episodes average about 1 Ma. Three episodes have occurred in the Quaternary at approximately 1.1 Ma (5 volcanoes), 350 ka (2 volcanoes), and 80 ka (1 volcano). Because Yucca Mountain lies within the Basin and Range Province, a significant portion of the pre-Quaternary volcanic history of the YMR may be buried in alluvial-filled basins. An exceptionally high-resolution aeromagnetic survey and subsequent drilling program sponsored by the U.S. Department of Energy (DOE) began in 2004 and is gathering data that will enhance understanding of the temporal and spatial patterns of Pliocene and Miocene volcanism in the region (Figure 1). DOE has convened a ten-member expert panel of earth scientists that will use the information gathered to update probabilistic volcanic hazard estimates originally obtained by expert elicitation in 1996. Yucca Mountain is a series of north-trending ridges of eastward-tilted fault blocks that are bounded by north to northeast-trending normal faults. Topographic basins filled with up to 500 m of alluvium surround it to the east, south and west. In the past several decades, nearly 50 holes have been drilled in these basins, mainly for Yucca Mountain Project Site Characterization and the Nye County Early Warning Drilling Program. Several of these drill holes have penetrated relatively deeply buried (300-400 m) Miocene basalt; a Pliocene basalt dated at 3.8 Ma was encountered at a relatively shallow depth (100 m) in the northern Amargosa Desert (Anomaly B in Figure 1). The current drilling program is the first to specifically target and characterize buried basalt. Based on the new aeromagnetic survey and previous air and ground magnetic surveys (Connor et al. 2000; O'Leary et al. 2002), at least eight drill holes are planned with the goal of sampling each geographic subpopulation of magnetic anomalies in the region (Figure 1). This will result in a more complete characterization of the location, age, volume and composition of buried basaltic features for the purpose of updating the volcanic hazard assessment. Smith and Keenan (2005) suggested that volcanic hazard estimates might be 1-2 orders of magnitude higher than estimated by the DOE expert elicitation in 1996, based on (1) a proposed relationship between recurrence rates in the YMR and the Reveille-Lunar Crater volcanic field to the north, and (2) the implication that a number of so-far-undiscovered buried volcanoes would have a significant impact on hazard estimates. This article presents the new aeromagnetic data and an interpretation of the data that suggests magnetic anomalies nearest the proposed repository site represent buried Miocene basalt that will likely have only a minor impact on the volcanic hazard.

  17. Some effects of the emissions of explosive volcanoes on the stratosphere

    SciTech Connect (OSTI)

    Cadle, R.D.

    1980-08-20

    A previously published 2-D numerical model of the global dispersion of an eruption cloud in the stratosphere as a function of time assumed an instantaneous injection of the eruption cloud (the source function). New calculations show that the dispersion rate is quite insensitive to the manner of introducing the source function into the model, including spreading the eruption time over 10 days. Results obtained by flying through the eruption clouds from explosive volcanoes in Guatemala indicated that most of the sulfur in such clouds is SO/sub 2/. If, as is generally believed, SO/sub 2/ reacts with OH in the stratosphere, leading to the production of H/sub 2/SO/sub 4/ droplets, high explosive eruptions can deplete the stratosphere of OH for long time periods. The OH is thus controlled by the rate of O(/sup 1/D) formation from ozone. By using the results from the 2-D dispersion model referred to above applied to the eruption cloud from the 1953 Agung eruption, and chemical kinetic rate constants, the 'e folding' residence time for sulfur dioxide conversion to sulfuric acid was estimated to be about 300 days. The Guatemala studies showed that the eruption clouds from explosive volcanoes contain large amounts of HCl. Unless much of this HCl is removed by rain accompanying the eruption, this HCl might be expected to have a marked influence on stratospheric chemistry as a result of the reaction OH+HCl..-->..H/sub 2/O+Cl. The volcanic HCl will probably remove OH much less rapidly than will SO/sub 2/, and if the OH concentration is greatly decreased by the SO/sub 2/, the above reaction may be too slow to be important.

  18. Two-dimensional simulations of explosive eruptions of Kick-em Jenny and other submarine volcanos

    SciTech Connect (OSTI)

    Gisler, Galen R.; Weaver, R. P. (Robert P.); Mader, Charles L.; Gittings, M. L. (Michael L.)

    2004-01-01

    Kick-em Jenny, in the Eastern Caribbean, is a submerged volcanic cone that has erupted a dozen or more times since its discovery in 1939. The most likely hazard posed by this volcano is to shipping in the immediate vicinity (through volcanic missiles or loss-of-buoyancy), but it is of interest to estimate upper limits on tsunamis that might be produced by a catastrophic explosive eruption. To this end, we have performed two-dimensional simulations of such an event in a geometry resembling that of Kick-em Jenny with our SAGE adaptive mesh Eulerian multifluid compressible hydrocode. We use realistic equations of state for air, water, and basalt, and follow the event from the initial explosive eruption, through the generation of a transient water cavity and the propagation of waves away from the site. We find that even for extremely catastrophic explosive eruptions, tsunamis from Kick-em Jenny are unlikely to pose significant danger to nearby islands. For comparison, we have also performed simulations of explosive eruptions at the much larger shield volcano Vailuluu in the Samoan chain, where the greater energy available can produce a more impressive wave. In general, however, we conclude that explosive eruptions do not couple well to water waves. The waves that are produced from such events are turbulent and highly dissipative, and don't propagate well. This is consistent with what we have found previously in simulations of asteroid-impact generated tsunamis. Non-explosive events, however, such as landslides or gas hydrate releases, do couple well to waves, and our simulations of tsunamis generated by subaerial and sub-aqueous landslides demonstrate this.

  19. Predicting and validating the tracking of a Volcanic Ash Cloud during the 2006 Eruption of Mt. Augustine Volcano

    SciTech Connect (OSTI)

    Webley, Peter W.; Atkinson, D.; Collins, Richard L.; Dean, K.; Fochesatto, J.; Sassen, Kenneth; Cahill, Catherine F.; Prata, A.; Flynn, Connor J.; Mizutani, K.

    2008-11-01

    On 11 January 2006, Mount Augustine volcano in southern Alaska began erupting after 20-year repose. The Anchorage Forecast Office of the National Weather Service (NWS) issued an advisory on 28 January for Kodiak City. On 31 January, Alaska Airlines cancelled all flights to and from Anchorage after multiple advisories from the NWS for Anchorage and the surrounding region. The Alaska Volcano Observatory (AVO) had reported the onset of the continuous eruption. AVO monitors the approximately 100 active volcanoes in the Northern Pacific. Ash clouds from these volcanoes can cause serious damage to an aircraft and pose a serious threat to the local communities, and to transcontinental air traffic throughout the Arctic and sub-Arctic region. Within AVO, a dispersion model has been developed to track the dispersion of volcanic ash clouds. The model, Puff, was used operational by AVO during the Augustine eruptive period. Here, we examine the dispersion of a volcanic ash cloud from Mount Augustine across Alaska from 29 January through the 2 February 2006. We present the synoptic meteorology, the Puff predictions, and measurements from aerosol samplers, laser radar (or lidar) systems, and satellites. UAF aerosol samplers revealed the presence of volcanic aerosols at the surface at sites where Puff predicted the ash clouds movement. Remote sensing satellite data showed the development of the ash cloud in close proximity to the volcano and a sulfur-dioxide cloud further from the volcano consistent with the Puff predictions. Lidars showed the presence of volcanic aerosol with consistent characteristics aloft over Alaska and were capable of detecting the aerosol, even in the presence of scattered clouds and where the cloud is too thin/disperse to be detected by remote sensing satellite data. The lidar measurements revealed the different trajectories of ash consistent with the Puff predictions. Dispersion models provide a forecast of volcanic ash cloud movement that might be undetectable by any other means but are still a significant hazard. Validation is the key to assessing the accuracy of any future predictions. The study highlights the use of multiple and complementary observations used in detecting the trajectory ash cloud, both at the surface and aloft within the atmosphere.

  20. Chemistry of spring and well waters on Kilauea Volcano, Hawaii, and vicinity

    SciTech Connect (OSTI)

    Janik, C.J.; Nathenson, M.; Scholl, M.A.

    1994-12-31

    Published and new data for chemical and isotopic samples from wells and springs on Kilauea Volcano and vicinity are presented. These data are used to understand processes that determine the chemistry of dilute meteoric water, mixtures with sea water, and thermal water. Data for well and spring samples of non-thermal water indicate that mixing with sea water and dissolution of rock from weathering are the major processes that determine the composition of dissolved constituents in water. Data from coastal springs demonstrate that there is a large thermal system south of the lower east rift of Kilauea. Samples of thermal water from shallow wells in the lower east rift and vicinity have rather variable chemistry indicating that a number of processes operate in the near surface. Water sampled from the available deep wells is different in composition from the shallow thermal water, indicating that generally there is not a significant component of deep water in the shallow wells. Data for samples from available deep wells show significant gradients in chemistry and steam content of the reservoir fluid. These gradients are interpreted to indicate that the reservoir tapped by the existing wells is an evolving vapor-dominated system.

  1. Self-potential, soil co2 flux, and temperature on masaya volcano, nicaragua

    SciTech Connect (OSTI)

    Lewicki, J.L.; Connor, C.; St-Amand, K.; Stix, J.; Spinner, W.

    2003-07-01

    We investigate the spatial relationship between self-potential (SP), soil CO{sub 2} flux, and temperature and the mechanisms that produce SP anomalies on the flanks of Masaya volcano, Nicaragua. We measured SP, soil CO{sub 2} fluxes (<1 to 5.0 x 10{sup 4} g m{sup -2} d{sup -1}), and temperatures (26 to 80 C) within an area surrounding a normal fault, adjacent to Comalito cinder cone (2002-2003). These variables are well spatially correlated. Wavelengths of SP anomalies are {le}100 m, and high horizontal SP gradients flank the region of elevated flux and temperature. Carbon isotopic compositions of soil CO{sub 2} ({delta}{sup 13}C = -3.3 to -1.1{per_thousand}) indicate a deep gas origin. Given the presence of a deep water table (100 to 150 m), high gas flow rates, and subsurface temperatures above liquid boiling points, we suggest that rapid fluid disruption is primarily responsible for positive SP anomalies here. Concurrent measurement of SP, soil CO{sub 2} flux, and temperature may be a useful tool to monitor intrusive activity.

  2. Tecuamburro Volcano, Guatemala geothermal gradient core hole drilling, operations, and preliminary results

    SciTech Connect (OSTI)

    Goff, S.; Heiken, G.; Goff, F.; Gardner, J. (Los Alamos National Lab., NM (USA)); Duffield, W. (Geological Survey, Flagstaff, AZ (USA)); Martinelli, L.; Aycinena, S. (Swissboring Overseas Corp. Ltd., Guatemala City (Guatemala)); Castaneda, O. (Unidad de Desarrollo Geotermico, Guatemala City (Guatemala). Inst. Nacional de Electrificacion)

    1990-01-01

    A geothermal gradient core hole (TCB-1) was drilled to a depth of 700+ m at the Tecuamburro geothermal site, Guatemala during February and March, 1990. The core hole is located low on the northern flank of the Tecuamburro Volcano complex. Preliminary analysis of cores (>98% core recovery) indicates that the hydrothermal system may be centered in the 4-km-diameter Chupadero Crater, which has been proposed as the source of pyroxene pumice deposits in the Tecuamburro area. TCB-1 is located 300 m south of a 300-m-diameter phreatic crater, Laguna Ixpaco; the core hole penetrates the thin edge of a tuff ring surrounding Ixpaco and zones of hydrothermal brecciation within the upper 150 m may be related to the phreatic blast, dated at 2,910 {sup 14}C years. At the time of this writing, the unequilibrated temperature at a depth of 570m was 180{degree}C. Data on fracturing, permeability, hydrothermal alteration, and temperature will be presented. 3 refs., 3 figs.

  3. The red triangles are volcano locations. Dark-orange areas have a higher volcanic hazard; light-orange areas have a lower volcanic hazard. Dark-gray areas have a higher ash fall hazard;

    E-Print Network [OSTI]

    The red triangles are volcano locations. Dark-orange areas have a higher volcanic hazard; light-orange areas have a lower volcanic hazard. Dark-gray areas have a higher ash fall hazard; light-gray areas have years. · Mauna Loa, in Hawaii, is the world's largest active volcano. · The Cascade Range--home to more

  4. Tkalcic, H., D.S. Dreger, G.R. Foulger, B.R. Julian, A. Fichtner, A seismological portrait of the anomalous 1996 Bardarbunga volcano, Iceland, earthquake (invited poster), EOS Trans. AGU, Fall Meet. Suppl.,

    E-Print Network [OSTI]

    Foulger, G. R.

    of the anomalous 1996 Bardarbunga volcano, Iceland, earthquake (invited poster), EOS Trans. AGU, Fall Meet. Suppl., Abstract S21B-1710, 2009. A Seismological Portrait of the Anomalous 1996 Bardarbunga Volcano, Iceland was recorded well by the regional-scale Iceland Hotspot Project seismic experiment. Several hypotheses were

  5. DESERT PAVEMENTS AND SOILS ON BASALTIC PYROCLASTIC DEPOSITS AT LATHROP WELLS AND RED CONE VOLCANOES, SOUTHERN NEVADA

    SciTech Connect (OSTI)

    G.A. Valentine; C.D. Harrington

    2005-08-10

    Formation of desert pavement and accretionary soils are intimately linked in arid environments such as the Mojave Desert. Well-sorted fallout scoria lapilli at Lathrop Wells (75-80 ky) and Red Cone ({approx}1 Ma) volcanoes (southern Nevada) formed an excellent starting material for pavement, allowing infiltration of eolian silt and fine sand that first clogs the pore space of underlying tephra and then aggrades and develops vesicular A (Av) horizons. Variations in original pyroclast sizes provide insight into minimum and maximum clast sizes that promote pavement and soil formation: pavement becomes ineffective when clasts can saltate under the strongest winds, while clasts larger than coarse lapilli are unable to form an interlocking pavement that promotes silt accumulation (necessary for Av development). Contrary to predictions that all pavements above altitudes of {approx}400 m would have been ''reset'' in their development after late Pleistocene vegetation advances (about 15 ka), the soils and pavements show clear differences in maturity between the two volcanoes. This indicates that either the pavement soils develop slowly over many 10,000's of years and then are very stable, or that, if they are disrupted by vegetation advances, subsequent pavements are reestablished with successively more mature characteristics.

  6. PSInSAR as a new tool to monitor preeruptive volcano ground deformation: Validation using GPS measurements on Piton de la

    E-Print Network [OSTI]

    Kaminski, Edouard

    : Validation using GPS measurements on Piton de la Fournaise A. Peltier,1 M. Bianchi,2 E. Kaminski,3 J over large areas. Citation: Peltier, A., M. Bianchi, E. Kaminski, J.C. Komorowski, A. Rucci, and T of the Piton de La Fournaise volcano (La Réunion Island), with a mean of two eruptions per year [Peltier et al

  7. COVER A Classopollis meyeriana conifer pollen grain (~30 micrometers across) preserved in lake sediments deposited just after a massive, volcano-induced extinction event ~200 million years ago.

    E-Print Network [OSTI]

    Olsen, Paul E.

    sediments deposited just after a massive, volcano-induced extinction event ~200 million years ago rates required to induce major climate perturbations. Here, we present new zircon uranium-lead (U separation between LIP volcanic deposits and stratigraphic sequences preserving evidence of the extinction

  8. Asbestiform tremolite within the Holocene late pyroclastic deposits of Colli Albani volcano (Latium, Italy): Occurrence and crystal-chemistry

    E-Print Network [OSTI]

    Della Ventura, Giancarlo; Bellatreccia, Fabio; De Benedetti, Arnaldo A; Mottana, Annibale

    2013-01-01

    This work relates the occurrence and the characterization of fibrous tremolite within the latest pyroclastic deposits of the Colli Albani (Alban Hills) volcano, to the south-east of Rome (Italy). These mineralizations were observed during a systematic rock-sampling undertaken to complete the geological survey for the new 1:50 000 map of this volcanic area. The examined specimens were collected inside distal deposits correlated to the last Albano Maar activity, which are geographically located within the boundaries of the Nemi community. Tremolite occurs within both carbonate ejecta and the host pyroclastic rocks. It shows up as whitish to light gray coloured aggregates of crystals with fibrous aspect and sericeous brightness. Due to the extremely small crystal dimensions, never exceeding 0.5 micron in diameter, the micro-chemical composition of the fibres could be obtained only by combining P-XRD, SEM-EDX and FTIR methods. Infrared spectroscopy, in particular, proved to be a valuable technique to characterize...

  9. Health-hazard Evaluation Report Heta 90-179-2172, National Park Service, Hawaii Volcanoes National Park, Hilo, Hawaii

    SciTech Connect (OSTI)

    Burr, G.A.; Stephenson, R.L.; Kawamoto, M.W.

    1992-01-01

    In response to a request from the National Park Service, an evaluation was undertaken of possible hazardous exposures to volcanic emissions, both gases and particulates, at the Hawaii Volcanoes National Park (SIC-7999) on the island of Hawaii in the State of Hawaii. Concerns included exposures to sulfur-dioxide (7446095) (SO2), asphalt decomposition products from burning pavement, acid mists when lava enters the ocean, volcanic caused smog, and Pele's hair (a fibrous glass like material). Two other related requests for study were also received in regard to civil defense workers in these areas. No detectable levels of SO2 were found during long term colorimetric detector tube sampling used to characterize park workers' personal full shift exposures. Short term detector tube samples collected near a naturally occurring sulfur vent showed SO2 levels of 1.2 parts per million (ppm). Work related symptoms reported by more than 50% of the respondents included headache, eye irritation, throat irritation, cough, and phlegm. Chest tightness or wheezing and shortness of breath were also frequently reported. Samples collected for hydrochloric-acid (7647010) and hydrofluoric-acid (7664393) recorded concentrations of up to 15ppm for the former and 1.0ppm for the latter acid. Airborne particulates in the laze plume were comprised largely of chloride salts. Airborne fibers were detected at a concentration of 0.16 fibers per cubic centimeter. The authors conclude that excessive exposure to SO2 can occur at some locations within the park. The authors recommend that workers and visitors to the park be informed of the potential for exposures.

  10. Volcanoes in Virginia!

    ScienceCinema (OSTI)

    Johnson, Elizabeth Baedke [James Madison University

    2014-06-25

    The recent earthquake may have you wondering what other surprises Virginia's geology may hold. Could there be a volcanic eruption in Virginia? Probably not today, but during the Eocene, about 35-48 million years ago, a number of mysterious eruptions occurred in western Virginia. This talk investigates the possible origins of these eruptions, and what they can tell us about the crust and mantle underneath Virginia.

  11. Combined U-Th/He and 40Ar/39Ar geochronology of post-shield lavas from the Mauna Kea and Kohala volcanoes, Hawaii

    SciTech Connect (OSTI)

    Aciego, S.M.; Jourdan, F.; DePaolo, D.J.; Kennedy, B.M.; Renne, P.R.; Sims, K.W.W.

    2009-10-01

    Late Quaternary, post-shield lavas from the Mauna Kea and Kohala volcanoes on the Big Island of Hawaii have been dated using the {sup 40}Ar/{sup 39}Ar and U-Th/He methods. The objective of the study is to compare the recently demonstrated U-Th/He age method, which uses basaltic olivine phenocrysts, with {sup 40}Ar/{sup 39}Ar ages measured on groundmass from the same samples. As a corollary, the age data also increase the precision of the chronology of volcanism on the Big Island. For the U-Th/He ages, U, Th and He concentrations and isotopes were measured to account for U-series disequilibrium and initial He. Single analyses U-Th/He ages for Hamakua lavas from Mauna Kea are 87 {+-} 40 ka to 119 {+-} 23 ka (2{sigma} uncertainties), which are in general equal to or younger than {sup 40}Ar/{sup 39}Ar ages. Basalt from the Polulu sequence on Kohala gives a U-Th/He age of 354 {+-} 54 ka and a {sup 40}Ar/{sup 39}Ar age of 450 {+-} 40 ka. All of the U-Th/He ages, and all but one spurious {sup 40}Ar/{sup 39}Ar ages conform to the previously proposed stratigraphy and published {sup 14}C and K-Ar ages. The ages also compare favorably to U-Th whole rock-olivine ages calculated from {sup 238}U - {sup 230}Th disequilibria. The U-Th/He and {sup 40}Ar/{sup 39}Ar results agree best where there is a relatively large amount of radiogenic {sup 40}Ar (>10%), and where the {sup 40}Ar/{sup 36}Ar intercept calculated from the Ar isochron diagram is close to the atmospheric value. In two cases, it is not clear why U-Th/He and {sup 40}Ar/{sup 39}Ar ages do not agree within uncertainty. U-Th/He and {sup 40}Ar/{sup 39}Ar results diverge the most on a low-K transitional tholeiitic basalt with abundant olivine. For the most alkalic basalts with negligible olivine phenocrysts, U-Th/He ages were unattainable while {sup 40}Ar/{sup 39}Ar results provide good precision even on ages as low as 19 {+-} 4 ka. Hence, the strengths and weaknesses of the U-Th/He and {sup 40}Ar/{sup 39}Ar methods are complimentary for basalts with ages of order 100-500 ka.

  12. Paleomagnetism of Paisano Volcano, Texas 

    E-Print Network [OSTI]

    Ryan, David

    1988-01-01

    . Sites PV-2 and PV-3 are at the bottom of a bluff northeast of Paisano Peak. PV 5g PV 6 PV 7 PV 8g PV llg PV 13, and PV-14 are in a stream valley adjacent to Paisano Peak. PV-4 is located on the west flank of the stream bed that cuts through... the canyon. PV-9 and PV-10 are at the top of a hill opposite the stream bed from Paisano peak. One site, PV-12, is near the entrance to the Morrow Ranch. PV-1 and most of the road cut sites are along US highway 90 in Brewster and Presidio counties...

  13. Shield Volcano | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-Enhancing Capacity for LowInformation NanoTexas: EnergySherwood,ShidaShield

  14. Annotated bibliography hydrogeology of Kilauea Volcano, Hawaii

    SciTech Connect (OSTI)

    Ingebritsen, S.E.; Scholl, M.A.

    1993-10-01

    The report consists of report documentation and short abstracts relating to the hydrology, geology, rainfall, ground water, water table and evapotranspiration, etc. relating to the whole island.

  15. PALEOMAGNETIC DATING OF THE CERRO PRIETO VOLCANO

    E-Print Network [OSTI]

    Boer, Jelle De

    2009-01-01

    OF ENERGY Division of Geothermal Energy United States of AmEnergy, Division of Geothermal Energy, *der contract W-7405-Development I of Geothermal Energy Resources, California: Q

  16. Publications of the Volcano Hazards Program 2007

    E-Print Network [OSTI]

    hydrothermal vent fluids on the geochemistry of Yellowstone, in Morgan, L.A., ed., Integrated geoscience studies in the greater Yellowstone area--Volcanic, tectonic, and hydrothermal processes in the Yellowstone St. Helens determined by self-potential measurements: Journal of Volcanology and Geothermal Research

  17. Adventive Hydrothermal Circulation On Stromboli Volcano (Aeolian...

    Open Energy Info (EERE)

    Resistivity Tomography (ERT), Ground Penetrating Radar (GPR), Self-Potential (SP), CO2 soil diffuse degassing and soil temperature surveys. This complementary data set revealed...

  18. The Fluid Mechanics Inside a Volcano

    E-Print Network [OSTI]

    Manga, Michael

    causes dissolved volatile species, such as water and carbon dioxide, to exsolve from the melt to form dissolved volatile species, primarily water. Carbon dioxide and sulphur dioxide are usually present processes and magma properties within the conduit interact and are coupled. Ultimately, it is the abil- ity

  19. Man Against Volcano: The Eruption on Heimaey,

    E-Print Network [OSTI]

    Ingólfsson, Ólafur

    exchange agreements with 24 foreign countries, and 47 scientific exchange agreements were pending with 30's Science Institute. Also, during 1973, and in subsequent years, Ice- landic officials provided support on scientific subjects of mutual interest, such as volcanology, seismology, geothermal studies, glaciology

  20. Publications of the Volcano Hazards Program 2006

    E-Print Network [OSTI]

    and geochronology of Mount Mazama and the Crater Lake region, Oregon: Geological Society of America Bulletin, v. 118., and Lanphere, M. A., 2006, Argon geochronology of Kilauea's early submarine history, in Coombs, M. L., Eakins, A. M., 2006, Volcanic history and 40 Ar/39 Ar and 14 C geochronology of Terceira Island, Azores

  1. Haleakala Volcano Geothermal Area | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View New PagesSustainableGlynn County,SolarFERCInformation 3.1Resilience FrameworkHaleakala

  2. Geology of Kilauea Volcano | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View New PagesSustainable UrbanKentucky: EnergyGateway1997) | OpenRaft river valley,PyramidKilauea

  3. Newberry Volcano EGS Demonstration | Department of Energy

    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 on Delicious RankADVANCED MANUFACTURINGEnergy Bills and Reduce Carbon PollutionZealand Joins InternationalHZNewberry

  4. Haleakala Volcano Geothermal Area | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource History View NewGuam: Energy Resources Jump to:WindInformationHaleakala

  5. Principal Types of Volcanoes | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsourceII JumpQuarterly SmartDB-2, BluePoulsenBioSolutions Jump to:Power JumpNewPrincipal

  6. When mud volcanoes sleep: Insight from seep geochemistry at the Dashgil mud volcano, Azerbaijan

    E-Print Network [OSTI]

    Mazzini, Adriano

    Petroleum Research, Oslo Research Park, 0349 Oslo, Norway c Geology Institute Azerbaijan, Husein Avenue 29A, gas, and petroleum. However, the source of the fluids and the fluid­rock interactions within the mud and Indonesia (e.g. Jakubov et al.,1971; Barber et al.,1986; Cita et al.,1996; Dia et al., 1999; Isaksen et al

  7. Validation of Innovative Exploration Technologies for Newberry Volcano

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-EnhancingEt Al.,Turin, New York:PowerNewPumatyUvalde County,VadeWest,

  8. Time-Domain Electromagnetics At Haleakala Volcano Area (Thomas, 1986) |

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-EnhancingEt Al., 2013)Open Energy InformationTikanderEnergy InformationOpen

  9. Monitoring Erebus volcano's active lava lake; tools, techniques and observations

    E-Print Network [OSTI]

    Peters, Nial John

    2015-03-03

    serves the crater rim was replaced. The old system was approaching ten years of service, and had become overly com- plex, and unreliable. A combination of extreme winds and corrosive gases makes the crater rim of Erebus an unsuitable site for solar panels... and wind generators. Instead, power is generated 0.5 km down-slope at the Nausea Knob (NKB) seismic station site, where a 1000 Ah battery bank is charged using a ? 0.5 kW array of photovoltaic panels, and a 100 W wind turbine. A Schaefer AEP-1500 inverter...

  10. Validation of Innovative Exploration Technologies for Newberry Volcano

    Broader source: Energy.gov [DOE]

    DOE Geothermal Technologies Peer Review - 2010. Project summary: To effectively combine numerous exploration technologies to gather important data. Once information is combined into 3-D models, a target drilling location will be determined. Deep well capable of finding commercial quantities of geothermal resource will be drilled to validate methodology.

  11. The Volcano of a Hundred Thousand Mouths | Argonne National Laboratory

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

    that carbon particulates play a second unwelcome role: the second largest contributor to climate change. Environmental regulations have helped to clear the skies over many cities....

  12. Alejandro Gomez Volcanoes of the Eastern Sierra Nevada

    E-Print Network [OSTI]

    Schieber, Juergen

    in place, nuclear power plants use the fuel to produce electricity. The fundamentals of the system. This steam is in turn used to power an electricity-generating turbine. This electricity finds its application

  13. A Strontium Isotopic Study Of Newberry Volcano, Central Oregon...

    Open Energy Info (EERE)

    content with 87Sr86Sr suggests that some isotopic ratios reflect shallow crustal contamination, but the data also suggest that two mantle sources, a prominent one at 0.7036 and...

  14. PUBLICATIONS OF THE VOLCANO HAZARDS PROGRAM 1999-2003

    E-Print Network [OSTI]

    Development Corporation, p. 231-232. Almendros, Javier, and Chouet, Bernard, 2003, Performance of the radial Society of America, v. 93, p. 1890-1903. Almendros, Javier, Chouet, Bernard, and Dawson, Phillip, 2001,565-13,580. Almendros, Javier, Chouet, Bernard, and Dawson, Phillip, 2001, Spatial extent of a hydrothermal system

  15. Rural groundwater supply for the Volcanoes National Park region, Rwanda

    E-Print Network [OSTI]

    Zoghbi, Christiane A. (Christiane Antoine)

    2007-01-01

    Water scarcity is a major issue faced by both developed and developing countries. According to the Millennium Development Goals set by the United Nations, the number of people that do not have access to an improved water ...

  16. QUANTIFICATION OF THE SPATIAL RELATIONSHIPS BETWEEN FAULTS AND VOLCANOES

    E-Print Network [OSTI]

    Wetmore, Paul H.

    alignments and structures. For example, on the Eastern Snake River Plain, the long axes of high intensity clusters subparallel the plain axis and essentially normal to structures beyond and volcanic rift zones within the plain. This is taken to reflect the geometry of the melt source region and its dominance over

  17. Jan. 24 Science Series Lecturer to Discuss Volcanoes in Virginia...

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

    active past. Guest speaker Elizabeth Johnson, assistant professor with the Geology and Environmental Sciences department at James Madison University, will present...

  18. Infrasonic component of volcano-seismic eruption tremor

    E-Print Network [OSTI]

    Matoza, Robin S; Fee, David

    2014-01-01

    to a subsurface seismic source process, such as the upwardseismic data for understanding wave?elds generated by active volcanic processes [

  19. Fotografa de Steve OMeara, Volcano Watch International Zona de Subduccin.

    E-Print Network [OSTI]

    , Tesis M.Sc., ITC, Holanda Paisajes volcánicos. Paisajes fluvio-volcánicos. Paisajes denudacionales) Centros poblados mayores, carreteras y Línea 60Kv. #12;#12;Graciela Peters, Tesis M.Sc., ITC, Holanda #12

  20. 14 | Coordinates November 2009 Many of the world's volcanoes that

    E-Print Network [OSTI]

    days are too slow for an early warning system. In addition to the use of precise positioning and timing, ground surface deformation, geothermal, gravity, and geomagnetic). This approach is particularly useful for enhanced risk assessment and early warning of volcanic eruptions. In architectural terms the monitoring

  1. New Model of Earth's Interior Reveals Clues to Hotspot Volcanoes

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

    Center (NERSC), scientists have detected previously unknown channels of slow-moving seismic waves in Earth's upper mantle. This discovery helps to explain how "hotspot...

  2. Self Potential At Haleakala Volcano Area (Thomas, 1986) | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onRAPID/Geothermal/Exploration/ColoradoRemsenburg-Speonk,SageScheucoSedco Hills,

  3. Mercury Vapor At Haleakala Volcano Area (Thomas, 1986) | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History ViewMayo, Maryland: Energy Resources Jump1.2619821°, -80.1875065° Show

  4. Mudpots, Mud Pools, or Mud Volcanoes | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History ViewMayo, Maryland: EnergyInformationOliver, Pennsylvania:(CTI PFAN) | OpenMt St

  5. Newberry Volcano EGS Demonstration Geothermal Project | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History ViewMayo, Maryland:NPI Ventures LtdNeville,Information 7thJersey: EnergyNewberryGeothermal

  6. Validation of Innovation Exploration Technologies for Newberry Volcano |

    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 on Delicious Rank EERE:Financing ToolInternationalReport FY 2009,BiofuelsLet RemoteServiceDepartment ofVOLUME IDepartment

  7. A Strontium Isotopic Study Of Newberry Volcano, Central Oregon- Structural

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EAand Dalton JumpProgram |Recent Exploration WellMountain,Beyond |And

  8. Aster Watches The World'S Volcanoes- A New Paradigm For Volcanological

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EAandAmminex A SOpenAshley, Ohio: Energy-Resource

  9. Adventive Hydrothermal Circulation On Stromboli Volcano (Aeolian Islands,

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EAand DaltonSolar Energy LLCAdemaInformation VehicleAdvectiveItaly)

  10. Isotope Geochemistry Of Minerals And Fluids From Newberry Volcano, Oregon |

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource History View NewGuam:on OpeneiAlbanianStudy)savings time. | OpenEIOpen Energy

  11. Validation of Innovation Exploration Technologies for Newberry Volcano

    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 on DeliciousMathematics And Statistics » USAJobs Search USAJobs SearchWater-SavingofCode |Department of18 -

  12. New Model of Earth's Interior Reveals Clues to Hotspot Volcanoes

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJessework usesofPublications64 2.251 2.211 2.196 2.172companies atNew

  13. Alaska Plans Geothermal Leasing at Volcano | Department of Energy

    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 on Delicious Rank EERE: Alternative FuelsofProgram:Y-12 Beta-3AUDITLeslie PezzulloAgendaChampion:Plans Geothermal Leasing

  14. Geothermal Literature Review At International Geothermal Area...

    Open Energy Info (EERE)

    Review Activity Date Usefulness not indicated DOE-funding Unknown Notes Lake Taupo, North Island, re: Heat Flow References G. Ranalli, L. Rybach (2005) Heat Flow, Heat Transfer And...

  15. Mechanical Controls on Eruptions

    E-Print Network [OSTI]

    Rudolph, Maxwell Lutman

    2012-01-01

    mud volcano, Indonesia, Marine and Petroleum Geology, 26 (volcano: East Java, Indonesia, Marine and Petroleum Geology,

  16. FESD Preliminary Proposal, Type I VOICE: Volcano, Ocean, Ice, and Carbon Experiments

    E-Print Network [OSTI]

    Huybers, Peter

    are large enough to influence melt production at both ridges and convergent margins, and to modify patterns of glacial and sea-level variability we will estimate the timing and location of changes associated with glacial variations in atmospheric CO2 and the saw- tooth nature of the glacial cycles

  17. FESD Proposal, Type I VOICE: Volcano, Ocean, Ice, and Carbon Experiments

    E-Print Network [OSTI]

    Huybers, Peter

    . Such pressure changes are large enough to influence melt production at both ridges and convergent margins. From patterns of glacial and sea-level variability we will estimate the timing and location of changes associated with glacial variations in atmospheric CO2 and the saw- tooth nature of the glacial cycles

  18. The 26 December (Boxing Day) 1997 sector collapse and debris avalanche at Soufriere Hills Volcano, Montserrat

    E-Print Network [OSTI]

    Belousov, Alexander

    , Russia 5 Institut de Physique du Globe de Paris (IPGP), 4 Place Jussieu, B 89, 75252 Cedex 05 Paris & Mullineaux 1981). At Soufriere Hills, an andesilic lava dome had grown over the unstable, hydro- thermally dome was exposed and depressurized, and it exploded to generate a powerful pyroclastic density current

  19. Author's personal copy Adsorbate interactions on surface lead to a flattened Sabatier volcano plot

    E-Print Network [OSTI]

    Chen, Sow-Hsin

    , Massachusetts Institute of Technology, Cambridge, MA 02139, USA a r t i c l e i n f o Article history: Received Institute of Technology, Cambridge, MA 02139, USA b Department of Materials Science and Engineering

  20. Publications of the Volcano Hazards Program 2008 U.S. Department of the Interior

    E-Print Network [OSTI]

    and Geothermal Research, v. 170, p. 12-23. Bacon, C.R., 2008, Geologic map of Mount Mazama and Crater Lake.M., 2008, Water-chemistry data for selected springs, geysers, and streams in Yellowstone National Park and prehistoric cultural transitions in Cook Inlet, Alaska: Journal of Volcanology and Geothermal Research, v. 176

  1. Using seafloor geodesy to monitor volcanic collapse on the south flank of Kilauea Volcano, Hawaii

    E-Print Network [OSTI]

    Phillips, Kathleen A.

    2006-01-01

    around Hawaii . . . . . . . . . . . . . . . . . . .Island of Hawaii . . . . . . . . . . . . . Figure showing1779-1991. University of Hawaii Press. Wyss, M. , and

  2. Constraints on the mechanism of long-term, steady subsidence at Medicine Lake volcano, northern California,

    E-Print Network [OSTI]

    Research 107, 2372, doi:10.1029/ 2001JB000893.]). InSAR data that approximate vertical displacements are similar to the leveling results; however, vertical deformation data alone are not sufficient 480 965 5081. Journal of Volcanology and Geothermal Research 150 (2006) 55­78 www

  3. Seismic and acoustic observations at Mount Erebus Volcano, Ross Island, Antarctica, 19941998

    E-Print Network [OSTI]

    Rowe, Charlotte

    -long-period (VLP) signals with strong spectral peaks near 20, 12 and 7 s, which are polarized in the vertical the lake (Giggenbach et al., 1973; Kyle, 1994). Journal of Volcanology and Geothermal Research 101 (2000

  4. On trapdoor faulting at Sierra Negra volcano, Galapagos Sigurjon Jonssona,*, Howard Zebkerb

    E-Print Network [OSTI]

    Amelung, Falk

    occurred, assuming vertical ground displacements, consistent with our previous modeling results. Results-dipping or nearly vertical faults. This occurs at high excess magma pressure when the lateral extent (half@stanford.edu (H. Zebker)8 amelung@rsmas.miami.edu (F. Amelung). Journal of Volcanology and Geothermal Research 144

  5. Thermodynamic stability and activity volcano for perovskite-based oxide as OER catalyst

    E-Print Network [OSTI]

    Rong, Xi, S.M. Massachusetts Institute of Technology

    2014-01-01

    Design of efficient and cost-effective catalysts for the oxygen evolution reaction (OER) is crucial for the development of electrochemical conversion technologies. Recent experiments show that perovskite transition-metal ...

  6. Correlation of Cycles in Lava Lake Motion and Degassing at Erebus Volcano, Antarctica

    E-Print Network [OSTI]

    Peters, Nial; Oppenheimer, Clive; Killingsworth, Drea Rae; Frechette, Jed; Kyle, Philip

    2014-08-19

    pulsatory behaviour either through experiments or computer simulations.111 D R A F T July 23, 2014, 11:09am D R A F T PETERS ET AL.: CYCLIC BEHAVIOUR OF THE EREBUS LAVA LAKE X - 7 2. Summary of Activity Although in general terms the inter-annual variability... to minimise the distance above the lake that211 we are measuring.212 The weather conditions at the summit of Erebus on 14 December 2013 were clear, with213 no clouds within the fields of view of the spectrometers and light winds of between 1–214 3 m s?1...

  7. Magnetic structure of Loihi Seamount, an active hotspot volcano in the Hawaiian Island chain 

    E-Print Network [OSTI]

    Lamarche, Amy J.

    2004-09-30

    ; Lenat et al., 1987; Blanco-Montenegro et al., 2003). Anomaly highs were also seen over rift zone 7...

  8. Using seafloor geodesy to monitor volcanic collapse on the south flank of Kilauea Volcano, Hawaii

    E-Print Network [OSTI]

    Phillips, Kathleen A.

    2006-01-01

    seismic interpretation . . . . . . . . . . . . . . . . . . . .Figure I.16 shows the seismic interpretation from Morgan etMorgan et al. seismic interpretation. Figure from (Morgan et

  9. Ground deformation associated with the eruption of Lumpur Sidoarjo mud volcano, east Java, Indonesia

    E-Print Network [OSTI]

    Aoki, Yosuke

    , Indonesia Yosuke Aoki , Teguh Purnama Sidiq 1 Earthquake Research Institute, University of Tokyo, 1-1 Yayoi. With this background, the eruption of Lumpur Sidoarjo (LUSI), eastern Java Island, Indonesia, pro- vides us), which yields good coherence even in vegetated regions like Indonesia. While Rudolph et al. (2013) used

  10. He-CO? Systematics in groundwaters at Mount Lassen Volcano , Northern Califronia

    E-Print Network [OSTI]

    Franz, Brian Paul

    2012-01-01

    production  values  (~0.02  R A )  indicating  a  discernible   presence  of  mantle-­?derived  helium  

  11. The behavior of Cu, Zn and Pb during magmatichydrothermal activity at Merapi volcano, Indonesia

    E-Print Network [OSTI]

    Long, Bernard

    Gill University, 3450 University St., Montreal, Quebec, Canada H3A 2A7 a b s t r a c ta r t i c l e i n f o Article history: Received 20 April 2012 Received in revised form 18 January 2013 Accepted 22 January 2013 factor in deter- mining the level of enrichment of Cu, Zn and Pb in the MVP. The properties of sulfide

  12. Publications of the Volcano Hazards Program 2009 U.S. Department of the Interior

    E-Print Network [OSTI]

    , Density and lithospheric strength models of the Yellowstone­Snake River Plain volcanic system from gravity

  13. Geochemical heterogeneity in the Hawaiian plume : constraints from Hawaiian volcanoes and Emperor seamounts

    E-Print Network [OSTI]

    Huang, Shichun

    2005-01-01

    The 6000-km long, age-progressive linear Hawaii-Emperor Chain is one of the best defined hotspot tracks. This hotspot track plays an important role in the plume hypothesis. In this research, geochemical data on the ...

  14. American Journal of Science UTURUNCU VOLCANO, BOLIVIA: VOLCANIC UNREST DUE TO

    E-Print Network [OSTI]

    Pritchard, Matt

    , United Kingdom §§ Servicio Nacional de Geologi´a y Mineri´a, Avenida Santa Mari´a 0104, Santiago, Chile

  15. The epidemiology and etiology of visitor injuries in Hawaii Volcanoes National Park 

    E-Print Network [OSTI]

    Heggie, Travis Wade

    2006-04-12

    The U.S. National Park Service has recognized visitor health and safety as an important component of protected area management. Despite this recognition, research investigating visitor health and safety issues in national parks is lacking. In order...

  16. An unexpected journey: experimental insights into magma and volatile transport beneath Erebus volcano, Antarctica

    E-Print Network [OSTI]

    Iacovino, Kayla

    2014-06-10

    and phonolite, which represent the most primitive and evolved lavas from Erebus. A distinct cocktail of C-O-H-S fluid was equilibrated with each experiment, and a wide range of experimental oxygen fugacities was explored. Overall, experiments from this work...

  17. Crater Lake Temperature Changes of the 2005 Eruption of Santa Ana Volcano, El Salvador, Central America

    E-Print Network [OSTI]

    Royer, Dana

    Division, Instituto Tecnolo´gico y de Energi´as Renovables (ITER), 38611 Granadilla de Abona, S/C de

  18. Modeling Temporal-Spatial Earthquake and Volcano Clustering at Yucca Mountain, Nevada

    SciTech Connect (OSTI)

    T. Parsons; G.A. Thompson; A.H. Cogbill

    2006-05-31

    The proposed national high-level nuclear repository at Yucca Mountain is close to Quaternary faults and cinder cones. The frequency of these events is low, with indications of spatial and temporal clustering, making probabilistic assessments difficult. In an effort to identify the most likely intrusion sites, we based a 3D finite element model on the expectation that faulting and basalt intrusions are primarily sensitive to the magnitude and orientation of the least principal stress in extensional terranes. We found that in the absence of fault slip, variation in overburden pressure caused a stress state that preferentially favored intrusions at Crater Flat. However, when we allowed central Yucca Mountain faults to slip in the model, we found that magmatic clustering was not favored at Crater Flat or in the central Yucca Mountain block. Instead, we calculated that the stress field was most encouraging to intrusions near fault terminations, consistent with the location of the most recent volcanism at Yucca Mountain, the Lathrop Wells cone. We found this linked fault and magmatic system to be mutually reinforcing in the model in that dike inflation favored renewed fault slip.

  19. EA-1897: AltaRock's Newberry Volcano EGS Demonstration near Bend, Oregon

    Broader source: Energy.gov [DOE]

    This EA evaluates the environmental impacts of a proposal to create an Enhanced Geothermal Systems (EGS) Demonstration Project involving new technology, techniques, and advanced monitoring protocols for the purpose of testing the feasibility and viability of EGS for renewable energy production.

  20. Validation of Innovative Exploration Technologies for Newberry Volcano: Drill Site Location Map 2010

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

    Jaffe, Todd

    2012-01-01

    Newberry project drill site location map 2010. Once the exploration mythology is validated, it can be applied throughout the Cascade Range and elsewhere to locate and develop “blind” geothermal resources.

  1. He-CO? Systematics in groundwaters at Mount Lassen Volcano , Northern Califronia

    E-Print Network [OSTI]

    Franz, Brian Paul

    2012-01-01

    2  clean  up  line.     Figure  3.1.1:  Fluid  Extraction,  Fluid  Extraction,  Noble  Gas  Separation,  Quadrupole     Mass-­?Spectrometer   System  (FENGS-­?QMS)     3.1.2  CO 2  Clean-­?

  2. Geological Aspects Of The 2003-2004 Eruption Of Anatahan Volcano...

    Open Energy Info (EERE)

    interaction of the magma head with groundwater around the crater, and abundant very fine ash ("gray tephra") was discharged within the caldera and over most of the island. The...

  3. Scattering matrices of volcanic ash particles of Mount St. Helens, Redoubt, and Mount Spurr Volcanoes

    E-Print Network [OSTI]

    Rose, William I.

    Scattering matrices of volcanic ash particles of Mount St. Helens, Redoubt, and Mount Spurr particles taken from seven samples of volcanic ashes corresponding to four different volcanic eruptions. The samples studied contain large mass fractions of fine particles and were chosen to represent ash that could

  4. Mud volcanoes and ice-keel ploughmarks, Beaufort Sea shelf, Arctic Canada

    E-Print Network [OSTI]

    Dowdeswell, J. A.; Todd, B. J.

    2015-01-01

    ., FORTIN, G., HILL, P. R., O’CONNOR, M. J. & BRIGHAM-GRETTE, J. 1990. The late Neogene and Quaternary stratigraphy of the Canadian Beaufort continental shelf. In: Grantz, A., Johnson, L. & Sweeney, J. F. (eds) The Geology of North America, vol. L...

  5. Ozarks Isoprene Experiment (OZIE): Measurements and modeling of the ``isoprene volcano''

    E-Print Network [OSTI]

    Palmer, Paul

    , and climate. Formaldehyde (HCHO), a major product of isoprene oxidation, can affect the atmo- spheric HOx within a representative area. Ground- level formaldehyde (HCHO) mixing ratios were very high (up to 20 of iso- prene chemistry in tropospheric ozone (O3) production is well understood [e.g., Fehsenfeld et al

  6. Monitoring rapid temporal change in a volcano with coda wave interferometry

    E-Print Network [OSTI]

    Snieder, Roel

    the case for the coda. Approximately midway through this period, however, the seismic coda decorrelates not be discernible using direct­ or single­scattered seismic wave methods. Citation: Gre^t, A., R. Snieder, R. C to study nonlinear temperature dependence of velocity in granite [Snieder et al., 2002], where

  7. Experimental Constraints on the Deep Magma Feeding System at Stromboli Volcano, Italy

    E-Print Network [OSTI]

    Boyer, Edmond

    magmas at their storage level and discuss their petro- genesis. Fluid-present, H2O- and CO2-bearing, near analyzed by Fourier transform IR spectroscopy and their H2O and CO2 concentrations compared with those balance. They range from CO2-rich (XH2O $ 0Á2) at 400 MPa to H2O-rich (XH2O $ 0Á8) at 100 MPa.The free

  8. Decadal Persistence of Cycles in Lava Lake Motion at Erebus Volcano, Antarctica

    E-Print Network [OSTI]

    Kingsbury, Nick

    al., 2008; Gerst et al., 2013). Phases of increased and more intense Strom-26 bolian activity recur, lasting 1 - 10 ::::: 1­10: months and are followed by more27 extended intervals during which gas bubble

  9. Infrasonic crackle and supersonic jet noise from the eruption of Nabro Volcano, Eritrea

    E-Print Network [OSTI]

    Fee, D; Matoza, RS; Gee, KL; Neilsen, TB; Ogden, DE

    2013-01-01

    the sound from man-made jet engine ?ows (jet noise) [Matozaby man-made supersonic jet engines and rockets and isfrom heated, supersonic jet engines and rockets, suggesting

  10. Validation of Innovative Exploration Technologies for Newberry Volcano: Drill Site Location Map 2010

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

    Jaffe, Todd

    Newberry project drill site location map 2010. Once the exploration mythology is validated, it can be applied throughout the Cascade Range and elsewhere to locate and develop “blind” geothermal resources.

  11. Structure Of The Lower East Rift Zone Of Kilauea Volcano, Hawaii, From

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-Enhancing CapacityVectren) JumpandStereoNewCreekStrongsville, Ohio: EnergyEnergy|

  12. Summary of Puʻu ʻOʻo - Kupaianaha Eruption, Kilauea Volcano, Hawaii |

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-Enhancing CapacityVectren)Model for the EntireOpen Energy Information Puʻu ʻOʻo

  13. Gas Flux Sampling At Haleakala Volcano Area (Thomas, 1986) | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View New PagesSustainable UrbanKentucky: Energy Resources JumpGarfieldGarvin| Open

  14. Direct-Current Resistivity At Haleakala Volcano Area (Thomas, 1986) | Open

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTIONRobertsdale, Alabama (UtilityInstrumentsArea (DOE GTP) JumpDillard RoadEnergy Information

  15. Results Of An Experimental Drill Hole At The Summit Of Kilauea Volcano,

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onRAPID/Geothermal/Exploration/ColoradoRemsenburg-Speonk, New York: EnergyOpen EnergyInformationfor theHawaii | Open

  16. Magmatic History Of The East Rift Zone Of Kilauea Volcano, Hawaii Based On

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas:Montezuma,Information MHKMHK5 <Kentucky:York: Energy ResourcesMagellanDrill

  17. New gamma-ray observatory begins operations at Sierra Negra volcano in the

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shinesSolarNew scholarship supportsFeet) Underground StorageNewNewstate of

  18. Geological Aspects Of The 2003-2004 Eruption Of Anatahan Volcano, Northern

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar2-0057-EA Jump to:ofEnia SpAFlexStock|GenesaGeographic coordinates JumpMariana

  19. Summary of Pu u O o - Kupaianaha Eruption, Kilauea Volcano, Hawaii | Open

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EA EIS ReportEurope

  20. 238U Decay Series Systematics Of Young Lavas From Batur Volcano, Sunda Arc

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EAand Dalton Jump to:Wylie,Information Skord, Et Al.,2050Limits,Energy|

  1. 3-D Density Model Of Mt Etna Volcano (Southern Italy) | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EAand Dalton Jump to:Wylie,Information Skord, Et15: Leases7

  2. A 3D Magnetic Structure Of Izu-Oshima Volcano And Their Changes After The

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EAand Dalton JumpProgram | Open EnergyEnergyEnergyEnergy

  3. A Numerical Model For The Dynamics Of Pyroclastic Flows At Galeras Volcano,

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EAand Dalton JumpProgram | OpenEnergyEvaluation |Island,ApproachSteam |-

  4. Analysis Of Multiple Scattering At Vesuvius Volcano, Italy, Using Data Of

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EAandAmminex A S Jump to: navigation,In TheExperimentsExplorationEps-1,The

  5. Anomalously High B-Values In The South Flank Of Kilauea Volcano, Hawaii-

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EAandAmminex A S Jump to:Angola on the Lake,InformationOpenEvidence For

  6. Geoelectric Studies on the East Rift, Kilauea Volcano, Hawaii Island | Open

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButtePowerEdistoWhiskeyFootprintGEXAGeminiEnergy Information Geoelectric

  7. Geologic Map of the Middle East Rift Geothermal Subzone, Kilauea Volcano,

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButtePowerEdistoWhiskeyFootprintGEXAGeminiEnergyHawaii | Open Energy

  8. A Time-Domain Electromagnetic Survey of the East Rift Zone Kilauea Volcano,

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop IncIowa (UtilityMichigan)data bookresult9) JumpMultipleSprings Thermal Area,

  9. Direct-Current Resistivity Survey At Haleakala Volcano Area (Thomas, 1986)

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButtePower VenturesInformation9)ask queriesWind Farm JumpOpenOpenAl.,2002)Open|

  10. Chemistry of spring and well waters on Kilauea Volcano, Hawaii, and

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButte County,Camilla,Thermal GradientChateau Tebeau LLC JumpSystem

  11. Preliminary results from an isotope hydrology study of the Kilauea Volcano

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsourceII JumpQuarterly SmartDB-2, BluePoulsen Hybrid,Areas- Cove Fort-Sulphurdale,area,

  12. New gamma-ray observatory begins operations at Sierra Negra volcano in the

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJessework usesofPublications64 2.251 2.211NewNew exhibit highlightsstate of

  13. Aspects of earthquake triggering and seismicity clustering /

    E-Print Network [OSTI]

    Chen, Xiaowei

    2013-01-01

    yellowstone volcano- tectonic system, Journal of Volcanology and Geothermalyellowstone volcano-tectonic system, Journal of Volcanology and Geothermal

  14. Genesis of large siliceous stromatolites at Frying Pan Lake, Waimangu geothermal field, North Island, New Zealand

    E-Print Network [OSTI]

    Konhauser, Kurt

    Genesis of large siliceous stromatolites at Frying Pan Lake, Waimangu geothermal field, North by various microbes (Riding, 1991), are common in hot-spring systems in the geo- thermal areas of Yellowstone in the geothermal systems of the Taupo Volcanic Zone (TVZ) on the North Island of New Zealand have been termed

  15. INTRODUCTION The contribution of micro-organisms to amorphous silica precipitation in modern

    E-Print Network [OSTI]

    Benning, Liane G.

    INTRODUCTION The contribution of micro-organisms to amorphous silica precipitation in modern, University of Guelph, Canada 3 Institute of Geological and Nuclear Sciences, Wairakei Research Centre, Taupo as geothermal energy sources and as a proxy to understanding the formation of epithermal ore deposits, which

  16. Comment on Ra-Th disequilibria systematics: Timescale of carbonatite magma formation at Oldoinyo Lengai volcano, Tanzania

    SciTech Connect (OSTI)

    Gittins, J. )

    1988-04-01

    This paper discusses potential flaws in study by Williams, Gill, and bruland (1986) dealing with the extreme disequilibria between uranium and thorium series nuclides in alkalic carbonatite lava specimens. It discusses the apparent discrepencies between chemical compositions of lava which were reported from the same eruption. Clarification is made on the actual timing of eruptions in this volcanic region and the effects this would have on the petrogenesis interpretation of these rocks.

  17. Transient self-potential anomalies associated with recent lava flows at Piton de la Fournaise volcano (Runion Island, Indian Ocean)

    E-Print Network [OSTI]

    Duputel, Zacharie

    to understand the variation of self-potential signals in active geothermal areas and transient self with ore bodies or the metallic casing of boreholes or contaminant plumes that are rich in organic matter

  18. It takes three to tango: 2. Bubble dynamics in basaltic volcanoes and ramifications for modeling normal Strombolian activity

    E-Print Network [OSTI]

    Suckale, Jenny

    This is the second paper of two that examine numerical simulations of buoyancy-driven flow in the presence of large viscosity contrasts. In the first paper, we demonstrated that a combination of three numerical tools, an ...

  19. Near-and Far-field Tsunami Hazard from the Potential Flank Collapse of the Cumbre Vieja Volcano

    E-Print Network [OSTI]

    Grilli, Stéphan T.

    Palma (Canary Islands) could result in a large tsunami hav- ing effects throughout the North Atlantic-field on neighboring Canary Islands, and their far-field coastal hazard would still be significant at some locations-submarine landslides of O(100 km3) volume around the Canary Islands (Spain). Masson et al. (2002) iden- tified at least

  20. Remote and in situ plume measurements of acid gas release from La Soufrie`re volcano, Guadeloupe

    E-Print Network [OSTI]

    Beauducel, François

    measurements which suggest a magmatic origin of the gases. Readjustments inside the volcanic system may have taken place during the seismic activity beginning in 1992 and enhance the transfer of magmatic gases: mlbernar@univ-ag.fr (M.-L. Bernard). Journal of Volcanology and Geothermal Research 150 (2006) 395­409 www

  1. Three-dimensional seismic velocity structure of Mauna Loa and Kilauea volcanoes in Hawaii from local seismic tomography

    E-Print Network [OSTI]

    Lin, G; Shearer, PM; Matoza, RS; Okubo, PG; Amelung, F

    2014-01-01

    H. , and M. P. Poland (2013), Seismic detection of increasedPap. , Lin, G. (2013), Seismic investigation of magmaticdimensional crustal seismic velocity model for southern

  2. 238 U/232Th zircon geochronology for the most recent eruptions of El Chichón volcano (Chiapas, Mexico)

    E-Print Network [OSTI]

    Pack, Brenda

    2015-01-01

    Pack 1 U/ 232 Th zircon geochronology for the most recentgeology, specifically in geochronology. It was an experiencePack 5 U/ 232 Th zircon geochronology for the most recent

  3. Oregon: DOE Advances Game-Changing EGS Geothermal Technology...

    Office of Environmental Management (EM)

    at the Newberry Volcano April 9, 2013 - 12:00am Addthis The AltaRock Enhanced Geothermal Systems (EGS) demonstration project, at Newberry Volcano near Bend, Oregon,...

  4. The Occurrence of Pyrrhotite in the Ngawha Geothermal System, New Zealand

    SciTech Connect (OSTI)

    Cox, M.E.; Browne, P.R.L.

    1995-01-01

    The Ngawha geothermal system is low in all sulfide minerals, but in comparison to systems in the Taupo Volcanic Zone it contains more widely distributed pyrrhotite which is currently depositing, mainly in fractures. This reflects the high proportion of vapor in the Ngawha system. Pyrrhotite is most common in the upper part of the reservoir and lower part of the aquitard. The Ngawha pyrrhotite is of monoclinic and monoclinic + hexagonal structure.

  5. Introduzione Che cos' un'ontologia?

    E-Print Network [OSTI]

    Laurini, Robert

    naturali Fuoco Tsunami Volcano Sllttamento di terreno Terremoto Relazione « è uno » Relazione « causa

  6. What Curiosity in the Structure: The Hollow Earth in Science.

    E-Print Network [OSTI]

    Griffin, Duane

    , ancient and widespread. Earthquakes and volcanoes, karst swallow holes and sinkholes, springs, and wells

  7. Environmental Information Sources: Books and websites

    E-Print Network [OSTI]

    Mittrach, Michelle

    2013-01-01

    effects of earthquakes, tsunamis, and volcanoes. * *Washington State Department of Natural Resources

  8. Textures, water content and degassing of silicic andesites from recent plinian and dome-forming eruptions at Mount Pele volcano (Martinique,

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Textures, water content and degassing of silicic andesites from recent plinian and dome contents (glass inclusions in phenocrysts and matrix glasses) and microtextures. Water contents of glass-eruptive melt water content (i.e., 5.3­ 6.3 wt.%), whereas they are much lower in the dominant pelean

  9. Surface deformation of Bezymianny Volcano, Kamchatka, recorded by GPS: The eruptions from 2005 to 2010 and long-term, long-wavelength subsidence

    E-Print Network [OSTI]

    Grapenthin, Ronni

    . The network-wide subsidence cannot be explained by tectonic deformation related to the build to about 0.023 km3 /yr of ba- salt, (Fedotov et al., 2010)) about 10 km to the north

  10. THE 2000 ERUPTION OF BEZYMIANNY VOLCANO CAPTURED WITH ASTER: A PROPOSAL TO INTEGRATE HIGH-RESOLUTION REMOTE SENSING DATA INTO REAL-TIME ERUPTION

    E-Print Network [OSTI]

    Ramsey, Michael

    /pixel), multi- spectral coverage (VNIR to TIR wavelengths), tunable gain settings (for monitoring hot targets

  11. Prodigious sulfur dioxide emissions from Nyamuragira volcano, Joint Center for Earth Systems Technology (NASA/UMBC), University of Maryland Baltimore County, Baltimore,

    E-Print Network [OSTI]

    Bluth, Gregg

    . Considering the alkaline composition of Virunga lavas, eruptive CO2 fluxes could be seven times the SO2 flux] is subordinate to anthro- pogenic SO2 emissions (134 Tg yrÀ1 ), but differences in source distributions source of sulfur emissions in Africa, and its cumulative total ($9 Tg) is only surpassed by the $20 Tg

  12. Sawolo et al. (2009) the Lusi mud volcano controversy: Was it caused by drilling? R. Davies a,*, Michael Manga b,*, Mark Tingay c

    E-Print Network [OSTI]

    Manga, Michael

    2009-01-01

    high leak-off pressure (LOP) and unrealistically low pressure within the borehole during the kick. Here using oil-based muds and they suggest that the `fracture closure pressure' should be used instead, the pressure of the fluid (drilling mud, water, gas) in the unprotected section of the well has to exceed

  13. SOEST Publications List (7000 on) 7000 Garcia, M.O., E.H. Haskins, E.M. Stolper, and M. Baker, 2007, Anatomy of a Hawaiian shield volcano,

    E-Print Network [OSTI]

    characterization experiment (DICE): Airborne versus surface sampling of mineral dust and sea salt aerosols, Aerosol, Drilling to gabbro in intact ocean crust, Science, 312(5776), 1016-1020, doi:10.1126/science.1126090. 7008

  14. Reactive halogens (BrO and OClO) detected in the plume of Soufrière Hills Volcano during an eruption hiatus

    E-Print Network [OSTI]

    Donovan, Amy; Tsanev, Vitchko; Oppenheimer, Clive; Edmonds, Marie

    2014-08-20

    column densities. The final week of measurements was characterized by lower wind speeds and clearer skies. Attempts to measure the ageing plume offshore on 17 April 2011 had limited success due to attenuation and the angle at which the measurements had...

  15. Petrogenesis of intraplate lavas from isolated volcanoes in the Pacific : implications for the origin of the enriched mantle source of OIB

    E-Print Network [OSTI]

    Tian, Liyan

    2011-01-01

    Mexico, 2. Geology and petrography of Isla San Benedicto,Mexico, 2. Geology and petrography of Isla San Benedicto,

  16. The natural geochemistry of tetrafluoromethane and sulfur hexafluoride : : studies of ancient Mojave Desert groundwaters, North Pacific seawaters and the summit emissions of Kilauea Volcano

    E-Print Network [OSTI]

    Deeds, Daniel A.

    2008-01-01

    5.1 with an in-situ helium production rate of 4.4 × 10 – cmhelium abundance, the crustal degassing of 4 He must be roughly equivalent to its radiogenic production

  17. The Natural Geochemistry of Tetrafluoromethane and Sulfur Hexafluoride : Studies of Ancient Mojave Desert Groundwaters, North Pacific Seawaters and the Summit Emissions of Kilauea Volcano

    E-Print Network [OSTI]

    Deeds, Daniel A

    2008-01-01

    5.1 with an in-situ helium production rate of 4.4 × 10 – cmhelium abundance, the crustal degassing of 4 He must be roughly equivalent to its radiogenic production

  18. Combined U-Th/He and 40Ar/39Ar geochronology of post-shield lavas from the Mauna Kea and Kohala volcanoes, Hawaii

    E-Print Network [OSTI]

    Aciego, S.M.

    2010-01-01

    helium compositions between 6.7 and 12 R/Ra, and corresponding concentrations of 3 He released in heating below detectionhelium isotopic composition of air ( 3 He/ 4 He = 1.39 x 10 -6 ). The detection

  19. The LUSI mud volcano triggering controversy: Was it caused by drilling? Nurrochmat Sawolo, Edi Sutriono, Bambang P. Istadi*, Agung B. Darmoyo

    E-Print Network [OSTI]

    Manga, Michael

    an intermittent eruption of hot water and steam was observed some 200 m from the Ban- jarpanji-1 well. The location map of Banjarpanji is shown in Fig. 1. The eruptive bursts of hot water and steam were dramatic geothermal activity, where superheated hydrothermal fluids at high temperature and pressure were released

  20. Combined U-Th/He and 40Ar/39Ar geochronology of post-shield lavas from the Mauna Kea and Kohala volcanoes, Hawaii

    E-Print Network [OSTI]

    Aciego, S.M.

    2010-01-01

    E. (1977) Subcommission on Geochronology - Convention on Useof Decay Constants in Geochronology and Cosmochronology.U-Th/He and 40 Ar/ 39 Ar Geochronology of Post-shield Lavas

  1. A Comprehensive Mathematical Model for the Correlation of Earthquake Magnitude with Geochemical Measurements. A Case Study: the Nisyros Volcano in Greece

    SciTech Connect (OSTI)

    Verros, G. D.; Latsos, T.; Liolios, C.; Anagnostou, K. E. [Department of Electrical Engineering, Technological Educational Institute of Lamia, GR-351 00 Lamia (Greece)

    2009-08-13

    A comprehensive mathematical model for the correlation of geological phenomena such as earthquake magnitude with geochemical measurements is presented in this work. This model is validated against measurements, well established in the literature, of {sup 220}Rn/{sup 222}Rn in the fumarolic gases of the Nisyros Island, Aegean Sea, Greece. It is believed that this model may be further used to develop a generalized methodology for the prediction of geological phenomena such as earthquakes and volcanic eruptions in the vicinity of the Nisyros Island.

  2. The Kamchatkan Volcanic Eruption Response Team (KVERT) U.S. Department of the Interior

    E-Print Network [OSTI]

    .S. Geological Survey USGS Fact Sheet 064-02 2002 U.S. GEOLOGICAL SURVEY--REDUCING THE RISK FROM VOLCANO HAZARDS Team (KVERT). This was done in close col- laboration with the Alaska Volcano Observa- tory (AVO

  3. BRAUN-BLANQUETIA, vol. 46, 2010 217 LESSONS FOR RESTORATION OF PROTECTED LANDS

    E-Print Network [OSTI]

    del Moral, Roger

    (GRISHIN et al., 1996) and is rarely visi- ted. Mount St. Helens, in a cool tempe- rate coniferous zone is the most studied volcano on the planet (DEL MORAL etal., 2005). The biota of many volcanoes is protected

  4. Elastic laboratory measurements and modeling of saturated basalts Ludmila Adam,1,2

    E-Print Network [OSTI]

    Boise State University

    the elastic behavior of basalt is important to seismically monitor volcanoes, subsea basalts, and carbon. Monitor- ing fluid substitution in basalts with seismic waves can be extended to volcanoes and subsea

  5. Living in the shadow of Mauna Loa

    E-Print Network [OSTI]

    Hirji, Zahra R. (Zahra Rafik)

    2013-01-01

    One of Hawaii's most dangerous natural hazards is sitting in plain sight: Mauna Loa volcano. The mighty mountain makes up more than fifty percent of the island and is the largest volcano on Earth. Since 1843, when people ...

  6. Geophys. J. Int. (2008) 173, 2548 doi: 10.1111/j.1365-246X.2007.03722.x GJIGeodesy,potentialfieldandappliedgeophysics

    E-Print Network [OSTI]

    Higuchi, Tomoyuki

    2008-01-01

    and on Kilauea volcano are associated with increased levels of microseismicity (Linde et al. 1996; Segall et al

  7. U.S. Department of the Interior U.S. Geological Survey

    E-Print Network [OSTI]

    history. Their evaluation enabled them to alert people in ar- eas at risk and also provide critical advice.S. GEOLOGICAL SURVEY--REDUCING THE RISK FROM VOLCANO HAZARDS N GUS S he world's only volcano crisis re- sponse to reduce risks from volcano hazards in the United States. Station at Subic Bay, 25 miles from Pinatubo

  8. Lectures 13/14 Volcanoes Feb 6/8, 2002 1 AA lava typically 2-5m thick; 3.5mph; width typically more than 100 yards; more viscous than Pahoehoe lava

    E-Print Network [OSTI]

    Laske, Gabi

    fracture in a rock Fissure eruption extrusion of lava along a fissure Flood basalt an extensive flow and steam from which minerals precipitate onto surrounding surfaces; the temperature in a fumarole typically

  9. Utility of geo-informatics for disaster risk management: linking structural damage

    E-Print Network [OSTI]

    Utility of geo-informatics for disaster risk management: linking structural damage assessment/ Volcano remote sensing (Uni Cambridge) Geoinformatics for disaster risk management (hazard

  10. ARM - Blog Article

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

    is a very large conference with roughly 20,000 attendees covering all aspects of geophysics-clouds, aerosols, atmospheric electricity, other planets, earthquakes, volcanoes,...

  11. Seismic and infrasonic source processes in volcanic fluid systems

    E-Print Network [OSTI]

    Matoza, Robin S.

    2009-01-01

    Tsunami and Volcano Hazard Assessment and the Nucleartsunamis, surf, and mountain associated waves (MAW) caused by air flow over topography; while man-made sources include nuclear

  12. Refraction Survey At Kilauea East Rift Geothermal Area (Leslie...

    Open Energy Info (EERE)

    C. Leslie, Gregory F. Moore, Julia K. Morgan (2004) Internal Structure Of Puna Ridge- Evolution Of The Submarine East Rift Zone Of Kilauea Volcano, Hawaii Additional References...

  13. Reflection Survey At Kilauea East Rift Geothermal Area (Leslie...

    Open Energy Info (EERE)

    C. Leslie, Gregory F. Moore, Julia K. Morgan (2004) Internal Structure Of Puna Ridge- Evolution Of The Submarine East Rift Zone Of Kilauea Volcano, Hawaii Additional References...

  14. Ground Magnetics At Kilauea East Rift Geothermal Area (Leslie...

    Open Energy Info (EERE)

    C. Leslie, Gregory F. Moore, Julia K. Morgan (2004) Internal Structure Of Puna Ridge- Evolution Of The Submarine East Rift Zone Of Kilauea Volcano, Hawaii Additional References...

  15. Oregon: DOE Advances Game-Changing EGS Geothermal Technology...

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

    The AltaRock Enhanced Geothermal Systems (EGS) demonstration project, at Newberry Volcano near Bend, Oregon, represents a key step in geothermal energy development, demonstrating...

  16. Energy Emergency Energy Emergency Preparedness Quarterly Preparedness...

    Office of Environmental Management (EM)

    Mapping functionality within EAGLE-I also incorporates the ability to add real-time weather hazards for earthquakes, floods, hurricanes, volcanoes, and wildfires as well as...

  17. Seismic and infrasonic source processes in volcanic fluid systems

    E-Print Network [OSTI]

    Matoza, Robin S.

    2009-01-01

    into a volcano-seismic source process in low-viscosityDIEGO Seismic and infrasonic source processes in volcanicTHE DISSERTATION Seismic and infrasonic source processes in

  18. Feature Detection, Characterization and Confirmation Methodology: Final Report

    E-Print Network [OSTI]

    Karasaki, Kenzi

    2009-01-01

    tomography studies at Yucca Mountain, Nevada, J. Geophys.volcanoes near Yucca Mountain, Nevada. U.S. Geologicaland J. Whitney. 2004. Yucca Mountain Site Description. TDR-

  19. Advanced 3D Geophysical Imaging Technologies for Geothermal Resource Characterization

    E-Print Network [OSTI]

    Zhang, Haijiang

    2012-01-01

    We describe the ongoing development of joint geophysical imaging methodologies for geothermal site characterization and demonstrate their potential in two regions: Krafla volcano and associated geothermal fields in ...

  20. The Dynamics of Fluid Flow and Associated Chemical Fluxes at Active Continental Margins

    E-Print Network [OSTI]

    Solomon, Evan A

    2007-01-01

    plate-boundary fault, Barbados accretionary complex. Geologytwo-well experiment in the Barbados accretionary complex. J.volcano field seaward of the Barbados accretionary wedge, J.

  1. The Dynamics of fluid flow and associated chemical fluxes at active continental margins

    E-Print Network [OSTI]

    Solomon, Evan Alan

    2007-01-01

    plate-boundary fault, Barbados accretionary complex. Geologytwo-well experiment in the Barbados accretionary complex. J.volcano field seaward of the Barbados accretionary wedge, J.

  2. ESPC Dollars Per Capita Map | Department of Energy

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

    2015 GTO Peer Review | Poster Session 2015 Peer Review | Plenaries A DOE-funded EGS demonstration at Newberry Volcano, Oregon could help unlock 100+GW of geothermal energy...

  3. Multiphysics processes in partially saturated fracture rock: Experiments and models from Yucca Mountain

    E-Print Network [OSTI]

    Rutqvist, J.

    2014-01-01

    at the Northwest Geysers EGS demonstration project.at the Newberry volcano EGS demonstration. Proceedings,up to 400°C for the NW Geysers EGS demonstration project, in

  4. California: Next-Generation Geothermal Demonstration Launched...

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

    at the Newberry Volcano Calpine operates 15 plants at The Geysers in northwest California, which generate enough clean energy daily to power a city the size of San...

  5. Constraints On The Mechanism Of Long-Term, Steady Subsidence...

    Open Energy Info (EERE)

    Constraints On The Mechanism Of Long-Term, Steady Subsidence At Medicine Lake Volcano, Northern California, From Gps, Leveling, And Insar Jump to: navigation, search OpenEI...

  6. Coupled Thermal-Hydrological-Mechanical-Chemical Model And Experiments...

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

    -Hydrological-Mechanical-Chemical Model And Experiments For Optimization Of Enhanced Geothermal System Development And Production: Evaluation of Stimulation at the Newberry Volcano...

  7. New Geothermal Prospects in the Western United States Show Promise...

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

    Stowe claims that resource capacity expands exponentially further when Enhanced Geothermal Systems (EGS) technology is added to the mix. At the Newberry Volcano near Bend,...

  8. Validation of Innovation Exploration Technologies for Newberry...

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

    Newberry EGS Demonstration Newberry Volcano EGS Demonstration Novel use of 4D Monitoring Techniques to Improve Reservoir Longevity and Productivity in Enhanced Geothermal Systems...

  9. Jefferson Lab Hosts Series of Public Lectures in the Coming Months...

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

    Fire." Iceland is a land of great contrasts, especially in its physical geography and geology. Glaciers and volcanoes abound in this geologically dynamic land that sits astride...

  10. Isotopic Analysis At Long Valley Caldera Geothermal Area (Evans...

    Open Energy Info (EERE)

    but also may provide additional insight to subsurface conditions. For example, CO2-rich groundwaters that are cold and dilute may be a general indicator that a volcano...

  11. Preliminary results from an isotope hydrology study of the Kilauea...

    Open Energy Info (EERE)

    the Kilauea Volcano area, Hawaii Abstract Deuterium (D) content of groundwater and precipitation, and tritium content of selected groundwater samples are used to infer flow paths...

  12. The San FranciscoVolcanic Field,which covers about 1,800 square miles, is part of northern

    E-Print Network [OSTI]

    The San FranciscoVolcanic Field,which covers about 1,800 square miles, is part of northern Arizona at the high- est elevations.The varied forests and geologic features of the San FranciscoVolcanic Field offer young but extinct volcanoes of the San Francisco Volcanic Field.Without the volcanoes, this region would

  13. Volume 1, Issue 6 While conducting research in Indonesia, Associate Professor Amanda Clarke

    E-Print Network [OSTI]

    Rhoads, James

    was interviewed by a film crew creating a documentary film called Mud Max on LUSI, the mud volcano in Sidoardjo and the Emmy Award nominee director, producer and writer of Ring of Fire, comes a the investigative documentary on the on- going eruption of the mud volcano LUSI. Produced over a 27-month period, the film includes

  14. SIGNIFICANCE OF MUD VOLCANISM Achim J. Kopf

    E-Print Network [OSTI]

    Manga, Michael

    in compressional tectonic scenarios. This paper summarizes the main thrusts in mud volcano research as well.1029/2000RG000093, 2002. 1. INTRODUCTION AND STRUCTURAL OUTLINE [2] Mud intrusion and extrusion are well]. These authors mostly focused on mud volcanoes on land, and they used industry drill-hole data to establish

  15. Subglacial lakes and jokulhlaups in Iceland Helgi Bjornsson*

    E-Print Network [OSTI]

    Ingólfsson, Ólafur

    Subglacial lakes and jo¨kulhlaups in Iceland Helgi Bjo¨rnsson* Science Institute, University of Iceland, Hagi, Hofsvallagata 53, 107 Reykjavi´k, Iceland Accepted 1 March 2002 Abstract Active volcanoes and hydrothermal systems underlie ice caps in Iceland. Glacier­volcano interactions produce meltwater that either

  16. Table A1. Major, trace and rare earth element compositions1 of volcanic rocks from Hoodoo Mountain volcano (Edwards et al. 2001; Bulletin Volcanology). 94-6694-6594-4994-4594-4493-16893-14193-10693-08593-07493-05093-03293-02993-02893-01693-00793-002Label

    E-Print Network [OSTI]

    Russell, Kelly

    ), trachyandesite (Ta). Basalts are from Little Bear Mountain. 3 Wt. % SiO2 content of samples reported

  17. Chemie der Erde 68 (2008) 117140 INVITED REVIEW

    E-Print Network [OSTI]

    Gonnermann, Helge

    2008-01-01

    -system outgassing and microlite crystallization in melt within the conduit. Clearer understanding of the factors This review examines ``dry'' explosive eruptions at basaltic volcanoes, linked to degassing and outgassing

  18. Conduction Models Of The Temperature Distribution In The East...

    Open Energy Info (EERE)

    Volcano Abstract Temperature variations in the 1966-meter Hawaii Geothermal Project well HGP-A are simulated by model studies using a finite element code for conductive heat flow....

  19. The Geochemistry of the HGP-A Geothermal Well: A Review and an Update

    SciTech Connect (OSTI)

    Thomas, Donald M.

    1988-01-01

    The HGP-A geothermal well, located on the lower east rift system of Kilauea volcano, has provided steam and hot water to a 3 MWe wellhead generator facility on a continuous basis since December 1981.

  20. Dynamic Earth GG101 -Spring 2015 Class Times: Tue/Thu, 9:30-10:20, POST 723

    E-Print Network [OSTI]

    from? Feb. 3 Chapter 6 What creates volcanoes? What is the origin of the Hawaiian Islands? First Exam does pressure and heat change rocks? Where does oil come from? Feb. 24 Chapter 11 How are mountains

  1. A Model For Syn-Eruptive Groundwater Flow During The Phreatoplinian...

    Open Energy Info (EERE)

    A Model For Syn-Eruptive Groundwater Flow During The Phreatoplinian Phase Of The 28-29 March 1875 Askja Volcano Eruption, Iceland Jump to: navigation, search OpenEI Reference...

  2. January 21, 2000 Snowball Earth

    E-Print Network [OSTI]

    Catling, David C.

    escaping from the molten core prevents the oceans from freezing to the bottom, but ice grows a kilometer cryogenic slumber, the volcanoes slowly manufacture an escape from the chill: carbon dioxide

  3. Systematic relocation of seismicity on Hawaii Island from 1992 to 2009 using waveform cross correlation and cluster analysis

    E-Print Network [OSTI]

    Matoza, Robin S; Shearer, Peter M; Lin, Guoqing; Wolfe, Cecily J; Okubo, Paul G

    2013-01-01

    network at Kilauea Volcano, Hawaii, U.S. Geological Surveysystem, in Volcanism in Hawaii, edited by R. W. Decker, T.Okubo (2001), Seismic hazard in Hawaii: High rate of large

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

    Open Energy Info (EERE)

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

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

    Open Energy Info (EERE)

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

  6. Puna Geothermal Venture's Plan for a 25 MW Commercial Geothermal...

    Open Energy Info (EERE)

    r i f t zone of the Kilauea Volcano i n the southeastern portion of the Big Island of Hawaii. Author D. Bell Conference GRC Annual Meeting; unknown; 19880601 Published...

  7. Core Lithology From the State of Hawaii Scientific Observation...

    Open Energy Info (EERE)

    Core Lithology From the State of Hawaii Scientific Observation Hole 1, Kilauea Volcano, Hawaii Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Core...

  8. 1. Constituents of rainwater 2. pH and pKa

    E-Print Network [OSTI]

    Schofield, Jeremy

    of soluble gases (reminder) { SO 2 1. Coal burning coal + O 2 (g) #1; ! SO 2 (g) + electricty 2. Volcanos to important physical properties: 1. Density of ice lower than liquid water in range T = 0 4 C. Important

  9. IGT DTP Projects 2016 IGT DTP Projects 2015 .............................................................................................. 1

    E-Print Network [OSTI]

    Berzins, M.

    eruptions of silicic volcanoes ....... 31 Detecting microearthquakes in fault zones and geothermal fields. Subglacial water can be measured directly at point-samples in boreholes, or inferred more widely from

  10. Anderson-Gregory; Constable-Steven; Orcutt-John; Staudigel-Hubert; Tolstoy-Maya; Wyatt-Frank-K, Observing seafloor tilt on Axial Segment, Juan de Fuca Ridge. Eos, Transactions, American Geophysical

    E-Print Network [OSTI]

    Menke, William

    central volcano in northeastern Iceland, J. Vol. Geotherm. Res. 6, 197-212, 1979. Cannon-Ragnar, Mechanism of the 1991 eruption of Hekla from continuous borehole strain monitoring, Nature (London).365

  11. National Aeronautics and Space Administration goddardviewVolume 6 Issue 2

    E-Print Network [OSTI]

    Christian, Eric

    For the Better ­ 6 Reviews Clear Way for New Tracking and Data Relay Satellites ­ 7 Into a Volcano to Test for help in solving the Mylar mystery. He received additional assistance in the form of testing from four

  12. Space Science: Atmospheres Evolution of planets

    E-Print Network [OSTI]

    Johnson, Robert E.

    ;Atmospheres / Evolution Heat Sources Compressional Energy Trapped Radioactive Material Tidal InteractionsSpace Science: Atmospheres Part- 7a Evolution of planets Out-Gassing/ Volcanoes Evolution Initial Species Solar abundance Solar wind composition? Carbonaceous chondrites? Variables Early sun

  13. UNIVERSITY OF COLORADO BOULDER The Earth's atmosphere, a layered sphere of gas

    E-Print Network [OSTI]

    Mojzsis, Stephen J.

    observations and modeling. Measuring the radiative effects of aerosols from urban pollution and forest fires sandstorms and volcanoes · Sea spray from the oceans · Smoke from agricultural burning and forest fires

  14. Atmospheric Science The Earth's atmosphere, a layered sphere of gas extending

    E-Print Network [OSTI]

    Mojzsis, Stephen J.

    observations and modeling. Measuring the radiative effects of aerosols from urban pollution and forest fires sandstorms and volcanoes · Sea spray from the oceans · Smoke from agricultural burning and forest fires

  15. Mantle Helium And Carbon Isotopes In Separation Creek Geothermal...

    Open Energy Info (EERE)

    area which is several miles due west of the volcano is the locus of strong crustal uplift currently occurring at a rate of 4-5 cdyr (Wicks, et. al., 2001). Helium (&RA 7.44...

  16. MORE ABOUT THIS MAP Our Earth is a dynamic planet, as clearly illustrated on the main map by its topography,

    E-Print Network [OSTI]

    Miller, Scott

    topography, over 1500 volcanoes, 44,000 earthquakes, and 170 impact craters. These features largely reflect tectonic forces. FEATURES OF THE MAP Topography Earth's topographic features are largely the expression

  17. Master1RservoirsGologiquesDynamiquedesBassins-MichelSranne Post-depositional evolution of sedimentary basins

    E-Print Network [OSTI]

    Cattin, Rodolphe

    of the organic matter What is organic matter ? Evolution of organic matter and geohistory Petroleum systemGéologiquesDynamiquedesBassins-MichelSéranne Fluid circulation in basins Lusi mud volcano (Indonesia): May 29, 2006 : Eruption of mud due

  18. Graduate Studies in Volcanology, Igneous Petrology & Economic Geology For more information

    E-Print Network [OSTI]

    Kurapov, Alexander

    Graduate Studies in Volcanology, Igneous Petrology & Economic Geology VIPER For more information Volcanology, Igneous Petrology and Economic geology Research group Interested in Volcanoes? Magmas? Ore) John Dilles (ore deposits, igneous petrology) Randy Keller (igneous petrology, marine geology) Roger

  19. Internal Structure Of Puna Ridge- Evolution Of The Submarine...

    Open Energy Info (EERE)

    Internal Structure Of Puna Ridge- Evolution Of The Submarine East Rift Zone Of Kilauea Volcano, Hawaii Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal...

  20. 2013. American Geophysical Union. All Rights Reserved. Eos, Vol. 94, No. 21, 21 May 2013

    E-Print Network [OSTI]

    Belousov, Alexander

    ) of Plosky Tolbachik volcano in east central Kamchatka, Russia (Figure 1a) [Samoy- lenko et al., 2012 vent area, and initial sulfur dioxide (SO2) gas emissions are esti- mated to have been approximately 60

  1. Building Icelandic Igneous Crust by Repeated Melt Injections

    E-Print Network [OSTI]

    Greenfield, Tim; White, Robert S.

    2015-10-27

    Observations of microseismicity provide a powerful tool for mapping the movement of melt in the crust. Here we record remarkable sequences of earthquakes 20 km below the surface in the normally ductile crust in the vicinity of Askja volcano...

  2. 3-D multichannel seismic reflection study of variable-flux hydrocarbon seeps, continental slope, northern Gulf of Mexico 

    E-Print Network [OSTI]

    Thomas, Ryan Douglas

    2004-11-15

    and geophysical indicators of hydrocarbons and correlate them with seafloor amplitude anomalies and fault traces in order to characterize seep activity level. The southern mud volcano in the Garden Banks site is characterized as an established high flux seep vent...

  3. Title: ArcAtlas Data Creator /

    E-Print Network [OSTI]

    (Subject): Frost, Precipitation, Air Temperature, Solar Radiation, Glaciers, Ground Water, Permafrost, Snow Cover, Hydrology, Volcanoes, Tectonic Pates, Agriculture, Landscape, Land Use, Soils, Vegetation, Rocks, Minerals, Population, Political Boundaries, Pipelines, Transportation, Earthquakes, Urban Areas, Wildlife

  4. Proceedings of the TOUGH Symposium 2012

    E-Print Network [OSTI]

    Finsterle, S.

    2014-01-01

    for Discrete- Fracture EGS Studies”, GRC’s 36 th Annualenhanced geothermal system (EGS) in the Northern GeysersAT THE NEWBERRY VOLCANO EGS DEMONSTRATION A. P. Rinaldi a ,

  5. Mass Wasting in the Western Galapagos Islands 

    E-Print Network [OSTI]

    Hall, Hillary

    2012-10-19

    Oceanic island volcanoes such as those in the Hawaiian, Canary and Galapagos Islands are known to become unstable, causing failures of the subaerial and submarine slopes of the volcanic edifices. These mass wasting events appear to be the primary...

  6. U.S. Department of the Interior U.S. Geological Survey

    E-Print Network [OSTI]

    of small steam explo- sions coming from the volcano, which had been intermittently active during the past's a flood coming." Mrs. Hall quickly spread the alarm downstream by telephone, and then the family scrambled

  7. Thermal and mechanical development of the East African Rift System

    E-Print Network [OSTI]

    Ebinger, Cynthia Joan

    1988-01-01

    The deep basins, uplifted flanks, and volcanoes of the Western and Kenya rift systems have developed along the western and eastern margins of the 1300 km-wide East African plateau. Structural patterns deduced from field, ...

  8. Uppermost mantle anisotropy beneath the southern Laurentian margin: Evidence from Knippa peridotite xenoliths, Texas

    E-Print Network [OSTI]

    Stern, Robert J.

    primitive nephelinites of the Balcones Igneous Province (BIP) [Griffin et al., 2010]. BIP volcanoes approximate the boundary between the 1.1­ 1.4 Ga southernmost Laurentian (Texas) craton and Jurassic age

  9. Melt zones beneath five volcanic complexes in California: an...

    Open Energy Info (EERE)

    (2) The Geysers-Clear Lake, (3) Long Valley caldera, (4) Coso volcanic field, and (5) Medicine Lake volcano, all located in California and all selected on the basis of recent...

  10. Melt Zones Beneath Five Volcanic Complexes in California: An...

    Open Energy Info (EERE)

    (2) The Geysers-Clear Lake, (3) Long Valley caldera, (4) Coso volcanic field, and (5) Medicine Lake volcano, all located in California and all selected on the basis of recent...

  11. Coupled Model Intercomparison Project 5 (CMIP5) simulations of climate following volcanic eruptions

    E-Print Network [OSTI]

    Robock, Alan

    to capture the NH dynamical response following eruptions. They do not sufficiently simulate the observed post] For a volcano to have a significant long-term impact on the climate it must inject a sufficient amount of sulfur

  12. Frank Selten, Global Climate Dept, KNMI Understanding climate change

    E-Print Network [OSTI]

    Selten, Frank

    (solar, volcano's) climate models simulate the response T P + + + + ++ ++ + + + these numbers form using satellite MSU (microwave sounding unit)derived deep layer temperatures in the tropical upper of temperature differences between tropical upper and lowermiddle troposphere based on satellite microwave

  13. Canales, J.P., H. Carton, J.C. Mutter, A. Harding, S.M. Carbotte, and M.R. Nedimovi. 2012. Recent advances in multichannel seismic imaging for academic research in deep oceanic environments.

    E-Print Network [OSTI]

    Nedimoviæ, Mladen R.

    mineralization, and biological colonization. The fine-scale structure of these systems was explored earlier., 2000) and beneath a Mid-Atlantic Ridge (MAR) volcano (Singh et al., 2006), and more recently

  14. A Time-Domain Electromagnetic Survey of the East Rift Zone Kilauea...

    Open Energy Info (EERE)

    Survey of the East Rift Zone Kilauea Volcano, Hawaii Jump to: navigation, search OpenEI Reference LibraryAdd to library Dissertation: A Time-Domain Electromagnetic Survey of the...

  15. Aquarterly publication for educatorsandthe pul~li.c-contemporarygeological topics, issues andevents _

    E-Print Network [OSTI]

    Dunbar, Nelia W.

    NewMexico Bureau of Mines and Mineral Resources #12;Haveyou ever wondered... .About OIl ProductlonBriefs--VolcanonearMexicoCity heatsup-again! Haveyoueverwondered...AboutOil Productionin NewMexico? How much do we consume- Mines and Mineral Resources (NMBM&MR), EarthBriefs Popocat~petl Volcano: past eruptionsmfuture dangers

  16. EOS, TRANSACTIONS, AMERICAN GEOPHYSICAL UNION Seismology is the study of the propaga-

    E-Print Network [OSTI]

    Wright, Dawn Jeannine

    assessment, nuclear test monitoring and treaty verifica- tion, volcano and tsunami warning systems, and mineral resources at depths of meters to a few kilometers. Detailed knowledge of the Earth's near sur- face is therefore a crucial part of managing a sustainable environment for civilization. One

  17. 147Student Voices Student Voices

    E-Print Network [OSTI]

    sheep and goats on the Pohakuloa Training Area and the eradication of feral hogs in Volcanoes National hogs. Feral hogs are a culturally important species in Polynesian culture, and hunting them. The source of controversy for local residents lies in the elimination of hunting, especially hunting of feral

  18. Three-Dimensional Simulations of Plume-Lithosphere Interaction at the

    E-Print Network [OSTI]

    Tackley, Paul J.

    aligned with the plate motion. The unusual variation in heat flow across the Hawaiian swell may be due. The Hawaiian Islands are part of a chain of massive volcanoes known collectively as the Hawaiian upwelling mantle called a hot spot. After passing over the hot spot, the islands gradually sank beneath

  19. 68 Scientific American January 2000 Snowball Earth Our human ancestors had it rough. Saber-toothed

    E-Print Network [OSTI]

    Reiners, Peter W.

    , in a time period known as the Neoproterozoic, an ice age pre- vailed with such intensity that even from its cryogenic slumber, the volcanoes slowly manufacture an escape from the chill: carbon dioxide- els. The heat-trapping capacity of carbon dioxide--a green- house gas--warms the planet and begins

  20. Cape Cod Times http://www.capecodonline.com/cgi-bin/print/printstory.cgi 1 of 5 6/28/2006 2:17 PM

    E-Print Network [OSTI]

    Bice, Karen L.

    on Cape Cod. The movie chronicles Gore's crusade to raise worldwide awareness about global warming on global warming requested by Congress last fall. The conclusions in the report are based on a broad review changes linked to volcanoes and the scientific work. Natural global warming occurs when carbon dioxide

  1. ETRI Journal, Volume 30, Number 5, October 2008 John A. Stankovic 627 The technologies for wireless communication, sensing,

    E-Print Network [OSTI]

    Stankovic, John A.

    will eventually be covered by networks of networks of smart sensors and actuators. This fact will give rise and assisted living medical care, smart buildings and cities, industrial automation, and numerous military, October 2008 Fig. 1. Three important applications: volcano monitoring, bridge monitoring, and assisted

  2. Appeared in The Wall Street Journal on Wednesday, March 23, 2011 Budget Cuts and the Next Earthquake

    E-Print Network [OSTI]

    Simons, Mark

    earthquake, tsunami and nuclear power-plant crisis were merely the latest recent events to remind us on monitoring hazardous regions (earthquake faults, volcanoes, landslides and so on) and preparing to survive-warning systems, as sensors close to the earthquake's epicenter alerted locations farther away, such as Tokyo

  3. Atmos. Chem. Phys., 8, 21032114, 2008 www.atmos-chem-phys.net/8/2103/2008/

    E-Print Network [OSTI]

    Meskhidze, Nicholas

    by emissions from combus- tion of coal, waste incineration, space heating, transportation, mining, and chlor such as CO, but not SO2 which is pre- sumably released locally from coal burning, refineries, and volcanoes). Although atmospheric measurements are exceedingly sparse, mixing ratios near the Earth's surface appear

  4. For more information about North Carolina Solar Center programs, go to www.ncsc.ncsu.edu

    E-Print Network [OSTI]

    in a turbine generator. In dry steam plants the geothermal energy is hot enough to create high pressure steam of this heat and energy is steam or lava that comes out of volcanoes. In locations where this heat source activity. Natural hot springs or steam vents are created when the earth's magma is not very far underground

  5. A Coupled AirSea Response Mechanism to Solar Forcing in the Pacific Region GERALD A. MEEHL, JULIE M. ARBLASTER,* AND GRANT BRANSTATOR

    E-Print Network [OSTI]

    Meehl, Gerald A.

    aerosols in one of the models) and natural (volcano and solar) forcings agree with observationsA Coupled Air­Sea Response Mechanism to Solar Forcing in the Pacific Region GERALD A. MEEHL, JULIE received 17 November 2006, in final form 25 May 2007) ABSTRACT The 11-yr solar cycle [decadal solar

  6. INT. J. REMOTE SENSING, 2003, VOL. 24, NO. 11, 23232344 Resolution dependence of infrared imagery of active thermal features

    E-Print Network [OSTI]

    Lovejoy, Shaun

    of active thermal features at Kilauea Volcano H. GAONAC'H Centre GEOTOP, Universite´ du Que´bec a` Montre of various vol- canic features in the thermal infrared spectral region (8­12 mm) acquired above the active the (essentially subjective) sensor resolution when interpreting and model- ling active volcanic thermal fields

  7. Query Optimization as a Datalog Program Mengmeng Liu, Zachary G. Ives, and Boon Thau Loo

    E-Print Network [OSTI]

    Ives, Zachary G.

    Query Optimization as a Datalog Program Mengmeng Liu, Zachary G. Ives, and Boon Thau Loo University is that of specifying the transformation rules and search process of a query optimizer [1]. In certain emerging domains universally understood than the languages used in transformational optimizers like those generated by Volcano

  8. Making a Computational Splash Ronald Fedkiw, Stanford University

    E-Print Network [OSTI]

    Thrun, Sebastian

    scenes with natural phenomena such as water waves, smoke, tornados or even lava erupting from volcanoes easier to make waves out of math than out of water. For centuries, applied mathematicians and physicists solutions provide useful information for practical problems of interest to both scientists and engineers

  9. Ocanographie / Oceanography Bathymay : la structure sous-marine de Mayotte rvle par l'imagerie multifaisceaux

    E-Print Network [OSTI]

    Boyer, Edmond

    by normal faulting, was concentrated along a N140° regional line (the Comoros archipelago axis, volcans, risques, Mayotte, Comores Key-words : bathymetry, imagery, volcanoes, hazards, Mayotte, Comoros Introduction Mayotte is a French Overseas Territory of the Comoros archipelago (Figure 1a). It includes two

  10. Time-lapse travel time change of multiply scattered acoustic waves

    E-Print Network [OSTI]

    Snieder, Roel

    .g., wave energy is transported in a process similar to heat diffusion. In medical imaging, for example of applications where detecting temporal changes may be useful include the monitoring of volcanoes, oil reservoirs time-lapse changes in the oil reservoir caused by a massive miscible CO2 flood to enhance oil recovery

  11. Wednesday, March 14, 2007 MARS TECTONICS AND CRUSTAL DICHOTOMY

    E-Print Network [OSTI]

    Rathbun, Julie A.

    . * Murray J. B. van Wyk de Vries B. Troll V. R. Flank Terrace Architecture of Martian Shield Volcanoes and regional stresses can influence terrace architecture. 10:00 a.m. Searls M. L. * Phillips R. J. Tectonics of Utopia Basin, Mars: Results from Finite Element Loading Models [#1965] We use a finite element model

  12. Mechanical models of the 1975 Kalapana, Hawaii earthquake and tsunami

    E-Print Network [OSTI]

    Kirby, James T.

    Mechanical models of the 1975 Kalapana, Hawaii earthquake and tsunami Simon J. Daya,*, Philip: Kalapana; Hilo; Kahului; Honolulu; Hilina; Hawaii; earthquake; slump; tsunami; volcano; Kilauea; extension earthquake to have affected Hawaii, after the slightly larger Great Kau earthquake of 1868 (Brigham, 1909

  13. Top down or bottom up? Volcanic architecture, climate,

    E-Print Network [OSTI]

    Geist, Dennis

    .5 Ma) Kauai (4.5 Ma) Hawaii (images from Porder & Vitousek) (images by A. Jefferson) #12;Volcano Island Hawaii Cascades Easter Island Azores Madeira Canary Galapagos Samoa Cape Verde #12;Time 0 >5 Ma "Conventional conceptual model" because of early work in Hawaii Modified from Gingerich and Oki 2000 (Oahu

  14. INTRODUCTION Weathering profiles are complex open geo-

    E-Print Network [OSTI]

    Derry, Louis A.

    . HAWAII CHRONOSEQUENCEAND CLIMATE GRADIENT Our data were collected as part of an ongoing), and 4100 ka (Kauai).All soil profiles were sampled on primary shield-volcano surfaces, where physical ka Hawi series lava flows on the leeward side of Kohala Mountain, Hawaii (Chadwick et al., 1994

  15. U.S. Department of the Interior U.S. Geological Survey

    E-Print Network [OSTI]

    winds of a coincidentally occurring typhoon, and winds at higher altitudes blew the ash southwestward, University of Cambridge.) earthquakes and caused powerful steam explosions that blasted three craters by the volcano. #12;volcanic ash (sand- and silt-size grains of volcanic minerals and glass) and larger pumice

  16. PROCEEDINGS, Thirty-Eighth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, February 11-13, 2013

    E-Print Network [OSTI]

    Foulger, G. R.

    PROCEEDINGS, Thirty-Eighth Workshop on Geothermal Reservoir Engineering Stanford University in the summer to monitor the EGS growth. Eight geophones were installed in 213-246 m deep boreholes, four and shift stimulation to new fractures. The Newberry Volcano EGS Demonstration will allow geothermal

  17. Heat flux measurement from thermal infrared imagery in low-flux fumarolic zones: Example of the Ty fault (La Soufrire de Guadeloupe)

    E-Print Network [OSTI]

    Beauducel, François

    the geothermal flux of a dormant volcano is necessary both for hazard assessment and for studying hydrothermal for the thermal infrared method, and 275 ± 50 W/m2 for the vertical temperature gradient method), if surface through connected porosity and fissures of rocks in which the thermal vertical gradient is nil. Near

  18. Plumes in the environment Sources: vulcan.wr.usgs.gov, geography.hunter.cuny.edu, earthobservatory.nasa.gov

    E-Print Network [OSTI]

    Flynn, Morris R.

    havoc for the European airline industry · BP's Deepwater Horizon oil spill in the Gulf of Mexico, the worst environmental disaster of its kind in US history Thursday, January 26, 2012 #12;Icelandic volcano, 2010, the largest disruption to European air travel since WWII · Immense local impact to agriculture

  19. Submitted February 20, 2014 Published March 15, 2014 Propos le 20 fvrier 2014 Publi le 15 mars 2014

    E-Print Network [OSTI]

    Har?El, Zvi

    often, a volcano." [3] Indeed, Borderie's list traces a straight line through the plot of a magnificent steam ship, which then departs from Liverpool for an unknown northern destination. Disguised agents. The crew discontent that breaks out at a low-70s latitude forces the captain to reveal all

  20. 2004 Geological Society of America. For permission to copy, contact Copyright Permissions, GSA, or editing@geosociety.org. Geology; March 2004; v. 32; no. 3; p. 189192; doi: 10.1130/G20239.1; 3 figures; 1 table. 189

    E-Print Network [OSTI]

    Wright, Robert

    less than the amount of energy consumed by the United States of America for residential, manufactur to document quantitatively the amount of thermal energy released from all of Earth's subaerially active of thermal energy released into Earth's atmosphere by 45 volcanoes identified as being in a state of thermal

  1. Thermo Tracer Infrared Thermal Imager

    E-Print Network [OSTI]

    Walker, D. Greg

    -range area G Environment monitoring Volcano, ecology, vegetation, global warming, pollution G R&D Evaluation is a fixed installation type infrared thermal imaging camera to monitor important facilities Production line monitoring Quality anomalies in production processes G Facility monitoring Anomalies

  2. Time-lapse monitoring of rock properties with coda wave interferometry

    E-Print Network [OSTI]

    Snieder, Roel

    exploited ultrasonic coda waves to monitor time-varying rock properties in a laboratory environment. We haveTime-lapse monitoring of rock properties with coda wave interferometry Alexandre Gre^t,1 Roel dam and volcano monitoring, time-lapse reservoir characterization, earthquake relocation, and stress

  3. GEOPHYSICAL RESEARCH LETTERS, VOL. 26, NO. 8, PAGES 1077-1080, APRIL 15, 1999 A Shallow-Dipping Dike fed the 1995 Flank Eruption at

    E-Print Network [OSTI]

    Segall, Paul

    -Dipping Dike fed the 1995 Flank Eruption at Fernandina Volcano, Gal´apagos, Observed by Satellite Radar an eruption took place in January to April, 1995. The observations show a maximum decrease in radar range of 0 in 1995 [Chadwick et al., 1991; Rowland and Munro, 1992; Global Volcanism Network, 1995; Wooster

  4. 1998. .., .., .. 1993-1995 .

    E-Print Network [OSTI]

    Belousov, Alexander

    1998 3 ©1998. .., .., .. 1993-1995 . , - 1993 . , - , 7, 8 5 . 13 . 0,006 3 . , - >50 2 . 0,07 3 . 1995 ., , . ERUPTIONS OF VOLCANO BEZYMIANNY IN 1993-1995, by B e l o u s o v A.B., F i r s t v P.P. and Z h d a n o v

  5. L. Evers, Infrasound monitoring in the Netherlands 1 Infrasound Monitoring in the Netherlands

    E-Print Network [OSTI]

    Evers, Läslo G.

    of infrasound are: explosions, severe weather, meteors, sonic booms, sea waves, volcanoes, nuclear tests is applied to verify the Comprehensive Nuclear-Test- Ban Treaty (CTBT). Worldwide 60 arrays are currently constructed to monitor the atmosphere for clandestine nuclear tests. Infrasound can travel over large

  6. Lab 4: Plate Tectonics Locating Geologic Hazards Introduction

    E-Print Network [OSTI]

    Chen, Po

    1 Lab 4: Plate Tectonics ­ Locating Geologic Hazards Introduction The likelihood of major geologic hazards associated with the lithosphere, such as earthquakes and volcanoes, is not uniform around provides a ready explanation for the distribution of these types of geologic hazards. It is useful

  7. PlanetEarthAutumn2005--www.nerc.ac.uk Acidinteractions

    E-Print Network [OSTI]

    Gauci, Vincent

    of methane wetlands emit? We decided to investigate the sulphur pollution that is found in acid rain. Many countries, particularly in Western Europe and North America, have taken great strides to reduce this problem growth of Asia. Volcanoes are also important sources of sulphur, and over the Earth's history they have

  8. Geothermics, Vol. 21, No. 4, pp. 425-446, 1992. Printed in Great Britain.

    E-Print Network [OSTI]

    .00 Pergamon Press Ltd CNR. GEOLOGY AND GEOTHERMAL POTENTIAL OF THE TECUAMBURRO VOLCANO AREA, GUATEMALA W. A Estudios Geologicos de America Central, Apartado 468, Guatemala City, Guatemala; § U.S. Geological Survey([icacion, Guatemala City, Guatemala. (Received June 1991: accepted,fbr publication May 1992) Abstraet

  9. The evolution of an active silicic lava flow field: an ETM+ perspective

    E-Print Network [OSTI]

    Rose, William I.

    'i, 2525 Correa Road, Honolulu, HI 96822, USA b INSIVUMEH, 7a Av. 14-57, Zona 13, Guatemala City, Guatemala, Houghton, MI 49931, USA d Santa Maria Volcano Observatory, c/o INSIVUMEH, 7a Av. 14-57, Zona 13, Guatemala City, Guatemala Accepted 5 December 2003 Abstract An active dacitic lava flow began advancing down

  10. LA-11906-MS Central American

    E-Print Network [OSTI]

    Area of Guatemala Edited by G. Heiken W. Duffield" I *USGeological Survey, 2255N.Gemini,Flagsto#, AZ 86001I Los ............................................................................ ix I. GEOLOGYAND GEOTHERMAL POTENTIAL OF THE TECUAMBURRO VOLCANO AREA OF GUATEMALA ............................................................................. 88 I IV. ELECTRICAL GEOPHYSICAL STUDIES OF THE TECUAMBURRO . GEOTHERMALAREA. GUATEMALA

  11. ResearchMICHIGAN TECHNOLOGICAL UNIVERSITY > 2012 The comeback ooze

    E-Print Network [OSTI]

    for bigger people--by design Rising sun A new dawn for solar power 16 19 20 3RESE ARCH 2012 | Michigan On the slopes of Mauna Loa--one of the world's most active volcanoes--Hawaiian honeycreepers make their home, where the human footprint has been minimal. Kipukas are home to native vegetation, insects, rare birds

  12. Extremes in climate science Andreas Sterl (KNMI)

    E-Print Network [OSTI]

    Stoffelen, Ad

    (non-deterministic) influences: sun, volcanoes, anthropogenic effects (GHG emissions) => deterministic Sterl, PhysMathClim Climate change GHG concentrations increase => Temperature increases => other weather;31.01.2012, Utrecht Andreas Sterl, PhysMathClim EVT - 1 Extremes: tail of a distribution => few observations => tail

  13. Structure of the Upper Crust in Japan from S-Wave Attenuation Tomography

    E-Print Network [OSTI]

    Sun, Youshun

    , vol- canoes, and/or temperature distribution in a region under- going active deformation. Data, Zhongxiong Cui, Youshun Sun, M. Nafi Toksöz, Charlotte A. Rowe, Xing Gao, Junmeng Zhao, Hongbing Liu, Jiankun Japanese islands, with almost the same distribution as volcanoes, while high Q-values exist mainly between

  14. Synthetic Assessment of Historical Anthropogenic Sulfur Dioxide (SO2) Emissions

    E-Print Network [OSTI]

    research sources, such as from energy consumption and greenhouse gas-air pollution Interactions) is a chemical compound that is present in the atmosphere produced both by natural sources, such as volcanoes decreasing overall until 2000, when China became the biggest pollutant in the world (Smith et al

  15. Geothermal Energy in Iceland Spring 2009

    E-Print Network [OSTI]

    Prevedouros, Panos D.

    and volcanoes The steam flows through pipesThe steam flows through pipes to the power plants, turning turbines the "smokey" steam from hot springs 1755-1756: First wells for hot water in Reykjavik and Krisuvik 1907: Farmer conveyed steam through concrete pipe to heat home 1920s: First boreholes drilled for water to heat

  16. The University of Chicago Department of Statistics

    E-Print Network [OSTI]

    The University of Chicago Department of Statistics BAHADUR MEMORIAL LECTURES JAMES O. BERGER Department of Statistical Science Duke University "I don't know where I'm gonna go when the volcano blows of mathematical computer modeling, statistical modeling of geophysical data, and extreme-event probability

  17. Role of adsorption in catalysis: applications of NMR relaxometry

    E-Print Network [OSTI]

    Arias Vecino, Pablo

    2015-06-09

    , the performance of the diesel oxidation Chapter 1 Introduction 9 catalyst (DOC) to reduce CO and hydrocarbon emissions is affected by the presence of NOx from the exhaust engine, due to competitive adsorption (Al-Harbi et al., 2012). 1.1.3.1 Volcano plots...

  18. Geophys. J. Int. (2008) 174, 11741186 doi: 10.1111/j.1365-246X.2008.03871.x GJIVolcanology,geothermics,fluidsandrocks

    E-Print Network [OSTI]

    Kawakatsu, Hitoshi

    2008-01-01

    of an infinite fluid layer between two elastic half-spaces, the crack wave is generated by the interference Earthquake Research Institute, University of Tokyo, Tokyo, Japan. E-mail: mare are promising. Key words: Hydrothermal systems; Interface waves; Volcano seismology. 1 I N T RO D U C T I O N

  19. Tremor–genic slow slip regions may be deeper and warmer and may slip slower than non–tremor–genic regions

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

    Montgomery-Brown, E. K.; Syracuse, E. M.

    2015-09-17

    The slow slip events (SSEs) are observed worldwide and often coincide with tectonic tremor. Notable examples of SSEs lacking observed tectonic tremor, however, occur beneath Kilauea Volcano, Hawaii, the Boso Peninsula, Japan, {near San Juan Bautista on the San Andreas Fault, California, and recently in Central Ecuador. These SSEs are similar to other worldwide SSEs in many ways (e.g., size or duration), but lack the concurrent tectonic tremor observed elsewhere; instead they trigger swarms of regular earthquakes. We investigate the physical conditions that may distinguish these non-tremor-genic SSEs from those associated with tectonic tremor including: slip velocity, pressure, temperature, fluidsmore »and fault asperities, although we cannot eliminate the possibility that tectonic tremor may be obscured in highly attenuating regions. Slip velocities of SSEs at Kilauea Volcano (~10?? m/s) and Boso Peninsula (~10?? m/s) are among the fastest SSEs worldwide. Kilauea Volcano, the Boso Peninsula and Central Ecuador are also among the shallowest SSEs worldwide, and thus have lower confining pressures and cooler temperatures in their respective slow slip zones. {Fluids also likely contribute to tremor generation, and no corresponding zone of high vp/vs has been noted at Kilauea or Boso. We suggest that the relatively faster slip velocities at Kilauea Volcano and the Boso Peninsula result from specific physical conditions that may also be responsible for triggering swarms of regular earthquakes adjacent to the slow slip, while different conditions produce slower SSE velocities elsewhere and trigger tectonic tremor.« less

  20. Finite-size scaling theory for explosive percolation transitions Y. S. Cho,1

    E-Print Network [OSTI]

    Kim, Doochul

    and Rényi model under the Achlioptas process. A scaling function is derived based on the observed fact of a giant cluster, called the Achlioptas process AP 1 , to the rule in the classic ER network model 9. Thus, the order parameter increases sud- denly. In analogy to the eruption of a volcano or a seismic

  1. VOLUME 84 NUMBER 42 21 OCTOBER 2003

    E-Print Network [OSTI]

    Bluth, Gregg

    : http://skye.gsfc.nasa.gov]. Building on the measurements of volcanic SO22 from space pioneered to quantify the significant non-erup- tive or passive SO22 plumes emitted by many quiescent volcanoes to TOMS and is expected to be able to routinely measure volcanic SO22,including passive plumes

  2. Living Document Proposal for a Statewide California Real Time Network

    E-Print Network [OSTI]

    Sandwell, David T.

    early warning systems for geological (earthquakes, tsunamis, volcanos, landslides) and atmospheric directly to the California Spatial Reference System (CSRS) and the National Spatial Reference System (NSRS in the Master Plan, specifically "real-time infrastructure systems1 ." In addition to providing a much needed

  3. "The Voice of NOAA's National Weather Service" Supporting NOAA's Weather Ready Nation Initiative

    E-Print Network [OSTI]

    . Warnings are broadcast for both natural (such as tsunamis and volcanoes) and man-made (such as Amber Alerts federally operated system broadcasting weather and emergency warnings to the public. Reception of NWR) warnings, watches, forecasts and other emergency information from nearby NWS offices 24 hours a day. Known

  4. GEOBULLETIN SEpTEmBEr 12Th

    E-Print Network [OSTI]

    Carlson, Anders

    rhyolitic magma systems are common in the geologic record and pose a major potential threat to society. Unlike other natural hazards such as earthquakes and tsunamis, a large rhyolitic volcano may provide warning signs long before a caldera-forming eruption occurs. Yet, these signs--and what they imply about

  5. Streaming potential measurements 2. Relationship between electrical and hydraulic flow

    E-Print Network [OSTI]

    Avouac, Jean-Philippe

    that variations of electric potential observed in a variety of geophysical contexts (geothermal fields, volcanoes gradient, is measured by recording the voltage across a sample through which an electrolyte is flowing to the pressure gradient and a quantity called the potential, which characterizes the structure of the EDL

  6. Regional climate responses to geoengineering with tropical and Arctic SO2 injections

    E-Print Network [OSTI]

    Robock, Alan

    insolation and cool Earth, has been suggested as an emergency response to geoengineer the planet in response aerosols cooling the planet, the volcano analog actually argues against geoengineering because of ozone2 into the lower stratosphere, it would produce global cooling. Tropical SO2 injection would produce

  7. ATOC 3500/CHEM 3151 March 31, 2011 Geoengineering

    E-Print Network [OSTI]

    Toohey, Darin W.

    change by removing some CO2 from the atmosphere, reducing CO2 concentration Solar radiation management by airplane (or volcano) 2. Sunlight and OH react with SO2, forming H2SO2 3. H2SO2 condenses and forms

  8. Climate forcing Climate forcing

    E-Print Network [OSTI]

    MacKinnon, Jennifer

    parameters (solar distance factors) solar luminosity moon orbit volcanoes and other geothermal sources,000 years (large panels) and since 1750 (inset panels). Measurements are shown from ice cores (symbols forcings are shown on the right hand axes of the large panels. {Figure 6.4} !"#$#%&'(!&#)$&*$+#$,-.$/0

  9. Tremor–genic slow slip regions may be deeper and warmer and may slip slower than non–tremor–genic regions

    SciTech Connect (OSTI)

    Montgomery-Brown, E. K.; Syracuse, E. M.

    2015-09-17

    The slow slip events (SSEs) are observed worldwide and often coincide with tectonic tremor. Notable examples of SSEs lacking observed tectonic tremor, however, occur beneath Kilauea Volcano, Hawaii, the Boso Peninsula, Japan, {near San Juan Bautista on the San Andreas Fault, California, and recently in Central Ecuador. These SSEs are similar to other worldwide SSEs in many ways (e.g., size or duration), but lack the concurrent tectonic tremor observed elsewhere; instead they trigger swarms of regular earthquakes. We investigate the physical conditions that may distinguish these non-tremor-genic SSEs from those associated with tectonic tremor including: slip velocity, pressure, temperature, fluids and fault asperities, although we cannot eliminate the possibility that tectonic tremor may be obscured in highly attenuating regions. Slip velocities of SSEs at Kilauea Volcano (~10?? m/s) and Boso Peninsula (~10?? m/s) are among the fastest SSEs worldwide. Kilauea Volcano, the Boso Peninsula and Central Ecuador are also among the shallowest SSEs worldwide, and thus have lower confining pressures and cooler temperatures in their respective slow slip zones. {Fluids also likely contribute to tremor generation, and no corresponding zone of high vp/vs has been noted at Kilauea or Boso. We suggest that the relatively faster slip velocities at Kilauea Volcano and the Boso Peninsula result from specific physical conditions that may also be responsible for triggering swarms of regular earthquakes adjacent to the slow slip, while different conditions produce slower SSE velocities elsewhere and trigger tectonic tremor.

  10. JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, Combined lidar and sun-photometer retrievals of ash particle size and mass

    E-Print Network [OSTI]

    Hogan, Robin

    -photometer retrievals of ash particle size and mass concentration from the Eyjafjallaj¨okull volcano Robin J. Hogan,1 the need for lidar monitoring stations capa- ble of routinely estimating the vertical profile of ash mass to demonstrate that large errors are likely in methods that attempt to infer the properties of the ash from

  11. Volcanic Ash Fall--A "Hard Rain" of Abrasive Particles U.S. Department of the Interior

    E-Print Network [OSTI]

    V Volcanic Ash Fall--A "Hard Rain" of Abrasive Particles U.S. Department of the Interior U olcanic ash consists of tiny jagged particles of rock and natural glass blasted into the air by a volcano. Ash can threaten the health of people and live- stock, pose a hazard to flying jet aircraft, damage

  12. Surprising spread of volcanic ash key to solving Earth's mysteries: U of A grad

    E-Print Network [OSTI]

    Wang, Hao "Howard"

    Surprising spread of volcanic ash key to solving Earth's mysteries: U of A grad EDMONTON Volcanic ash, which can provide valuable snapshots of Earth's history, appears to drift much farther than of science that uses layers of "tephra," or ash, to link and date events in Earth's history. When a volcano

  13. Advantageous GOES IR results for ash mapping at high latitudes: Cleveland eruptions 2001

    E-Print Network [OSTI]

    Bluth, Gregg

    Advantageous GOES IR results for ash mapping at high latitudes: Cleveland eruptions 2001 Yingxin Gu] The February 2001 eruption of Cleveland Volcano, Alaska allowed for comparisons of volcanic ash detection using angle also influences the results. The MODIS and AVHRR data give consistent retrievals of the ash cloud

  14. Detection of smoke and ash from forest fires and volcanic eruptions using the GOME-2 Absorbing Aerosol Index

    E-Print Network [OSTI]

    Tilstra, Gijsbert

    Detection of smoke and ash from forest fires and volcanic eruptions using the GOME-2 Absorbing. Colours represent the smoke plume on the indicated days. 3. Detection of volcanic ash In April 2010, the GOME-2 AAI was able to follow the transport of volcanic ash from the Eyjafjalljokull volcano

  15. GPS and Volcanic Ash Plumes: The eruptions of Okmok 2008 and Redoubt 2009, Alaska

    E-Print Network [OSTI]

    Grapenthin, Ronni

    GPS and Volcanic Ash Plumes: The eruptions of Okmok 2008 and Redoubt 2009, Alaska Ronni Grapenthin Volcano in 2008 and Mt. Redoubt in 2009 produced significant ash plumes reaching over 15 km of altitude. It is known that the injection of volcanic ash in the at- mosphere induces phase delays not modeled by GPS

  16. Following more than 30 years of seismic and volcanic quiescence, the Canary Islands

    E-Print Network [OSTI]

    Sleeman, Reinoud

    Following more than 30 years of seismic and volcanic quiescence, the Canary Islands region located History Several eruptions have taken place in the Canary Islands in the last 500 years, all of them, TRANSACTIONS, AMERICAN GEOPHYSICAL UNION PAGES 61,65 Monitoring the Reawakening of Canary Islands'Teide Volcano

  17. Lithospheric response to volcanic loading by the Canary Islands: constraints from seismic reflection data in their flexural moat

    E-Print Network [OSTI]

    Watts, A. B. "Tony"

    Lithospheric response to volcanic loading by the Canary Islands: constraints from seismic the seismic stratigraphy of the flexural moat that flanks the Canary Islands. The moat stratigraphy has been the volcanoes that make up the Canary Islands progressively load the underlying lithosphere from east to west

  18. Drowning in mud by Keith Cheveralls

    E-Print Network [OSTI]

    Manga, Michael

    eruption The Lusi mud volcano devastates the landscape in Sidoarjo, Indonesia. In the distance, steam rises in 2006, Lusi has ejected an average of 50,000 cubic meters of mud--enough to flood a football field eventually Steam rises from Lusi's eruption site, surrounded by sandbags and earth-moving equipment. Unlike

  19. A new hydrothermal scenario for the 2006 Lusi eruption, Indonesia. Insights from gas geochemistry

    E-Print Network [OSTI]

    Mazzini, Adriano

    acquired a wide set of data of molecular and isotopic composition of gas sampled in several Lusi vents, in the surrounding mud volcanoes, in the closest natural gas field (Wunut), and in the hydrothermal ventsA new hydrothermal scenario for the 2006 Lusi eruption, Indonesia. Insights from gas geochemistry

  20. Taking advantage of the Galpagos archipelago as a high-visibility

    E-Print Network [OSTI]

    Geist, Dennis

    between volcanoes II. Magma storage and transport ­ Geometry of magma storage ­ Getting from the source · Gas emissions Figure courtesy of Cindy Ebinger Figure courtesy of Marco Bagnardi and Scott Baker #12;II. MAGMA STORAGE AND TRANSPORT · What is the geometry and depth of magma storage beneath Galapagos

  1. Computational Linguistics and Chinese Language Processing Vol. 13, No. 1, March 2008, pp. 27-40 27

    E-Print Network [OSTI]

    Volcano located?", a QA system has to respond "Mexico", instead of returning a list of related documents (INAOE). Luis Enrique Erro #1, Sta. María Tonantzintla, Puebla, Mexico. Tel.: +52-222-2663100 ext: 8218;28 Rita M. Aceves-Pérez et al. At present, due to the internet explosion and the existence of several

  2. LIGHTS OUT AUTONOMOUS OPERATION OF AN EARTH OBSERVING SENSORWEB Steve Chien(1)

    E-Print Network [OSTI]

    Schaffer, Steven

    -situ data are streamed via the internet to New Mexico Tech. in Socorro, New Mexico. At the Jet Propulsion Mexico Tech, 801 Leroy Place, Socorro, NM, USA, 87801, kyle@nmt.edu (6) Cascade Volcano Observatory, 1300 Observatory (MEVO), operated by New Mexico Tech., volcanologists around the world will have key science data

  3. Past Eruptive Behavior Mount Hood is more than 500,000 years

    E-Print Network [OSTI]

    dome near Crater Rock, pyroclastic flows, lahars in south and west valleys; substantial tephra falls near volcano About 200 years ago Lava dome at Crater Rock; pyroclastic flows, lahars in south and west valleys, and minor tephra falls Subduction of the Juan de Fuca Plate under the North American Plate

  4. October 17, 2002 Bonneville Power Administration

    E-Print Network [OSTI]

    for the region and stimulate economic growth. Geothermal: Newberry volcano, OR Geothermal power is the natural-fired power plants · On a levelized cost basis, geothermal is comparable to gas & wind · Operating costsOctober 17, 2002 Bonneville Power Administration PO Box 12999 Portland, OR 97208 comment

  5. Explosive silicic eruptions in Iceland: from vent to peat bog

    E-Print Network [OSTI]

    Explosive silicic eruptions in Iceland: from vent to peat bog OUTLINE Microtephra horizons, found in soils across Scotland, contain fine ash produced by explosive eruptions in Iceland. They represent presented by the eruptions that produce them. ASHFALL IN SCOTLAND Ash from numerous volcanoes in Iceland can

  6. RESEARCH ARTICLE Time series analysis of infrared satellite data for detecting

    E-Print Network [OSTI]

    Wright, Robert

    , if any, known false detections. We also tested gas flares in the Cantarell oil field in the Gulf of Mexico as an end-member scenario representing very persistent thermal anomalies. At Cantarell, the hybrid . Anatahan volcano . Cantarell oil field Introduction Satellite-based thermal infrared (TIR) instruments have

  7. Depth determinations of shallow hydrothermal systems by self-potential and multi-scale wavelet tomography

    E-Print Network [OSTI]

    Williams-Jones, Glyn

    to significantly enhance our ability to locate geothermal systems and monitor active volcanoes. © 2010 Elsevier BDepth determinations of shallow hydrothermal systems by self-potential and multi-scale wavelet studies, the depth of the hydrothermal system is always required, but rarely known via traditional

  8. Volcanic Processes, the Resulting Landforms, and What These Mean To the Residents Nearby

    E-Print Network [OSTI]

    Polly, David

    amounts of silica. Silica molecules tend to form long polymer chains that aren't easily broken. High of silica the less polymer chains that form on a molecular level and the less dangerous the lava will be. Low viscosity magmas/lavas would form flood basalts and shield volcanos. Intermediate magmas

  9. Post-doctoral employment July 2006-present: Lecturer and Academic Fellow in Physics and Chemistry of the Earth and Environment,

    E-Print Network [OSTI]

    Henderson, Gideon

    : integrating observation & modelling' Funding 2012: - Co-I NERC Standard Grant `Spectrally High resolution processes' - £410k - Co-I NERC Theme Action consortium `Strengthening resilience in volcanic areas (STREVA volcano, Greece) - £52k [completed]. 2009: - PI NERC Standard Grant (Volcanic mercury: local deposition

  10. SANFRANCISCO MokelumneCamanche

    E-Print Network [OSTI]

    Petaluma Napa Novato San Francisco Oakland San Mateo OakdaleTracy Manteca Lodi Rio Vista Galt Elk Grove Hawthorne Mammoth Lakes Benton TonopahSan Jose Morgan Hill Santa Clara Klamath Cedarville Paynes Creek Scotia Leggett Rancho Cordova Lincoln Loomis Coloma Volcano Mokelumne Hill Chinese Camp June Lake

  11. Geophysical Research Abstracts, Vol. 10, EGU2008-A-10672, 2008

    E-Print Network [OSTI]

    Belousov, Alexander

    volcano on January 8, 1933 with the volume 0.4 km3. The failure generated tsunami up to 20 m high with 2-10672 EGU General Assembly 2008 © Author(s) 2008 Large scale failures and debris avalanche deposits volumes of the failures - around 1 km3. Three largest 3 to 4 km-across scars (which were formed

  12. An Alternative Solution for Modelling Lava Flow Path and Length: applied for hazard assessment at Hekla and Eyjafjallajökull, Iceland 

    E-Print Network [OSTI]

    O'Hara, Mhairi

    2012-08-08

    are in extremely good agreement with the real flow fields, with an average accuracy of 94.42%. The Lava Flow model is also used to produce hazard maps for both Hekla and Eyjafjallajökull, by identifying zones on the volcanoes flanks that will confine the lava...

  13. Hazard assessment in geothermal exploration: The case of Mt. Parker, Southern Philippines

    SciTech Connect (OSTI)

    Delfin, F.G. Jr.; Salonga, N.D.; Bayon, F.E.B.

    1996-12-31

    Hazard assessment of the Mt. Parker geothermal prospect, conducted in parallel with the surface exploration from 1992 to 1994, was undertaken to determine the long-term suitability of the prospect for development. By comparison with other acidic magmatic-hydrothermal systems in the Philippines, the geochemical data indicated minimal input of acidic magmatic fluids into Mt. Parker`s hydrothermal system. This system was regarded to be a neutral-pH and high-enthalpy chloride reservoir with temperature of at least 200-250{degrees}C. These favorable geochemical indications contrasted sharply with the C-14 and volcanological data indicating a shallow magmatic body with a potential for future eruption. This hazard led PNOC EDC to discontinue the survey and abandon the prospect by late 1994. On September 6, 1995, a flashflood of non-volcanic origin from the caldera lake killed nearly 100 people on the volcano`s northwestern flank.

  14. Who farted? Hydrogen sulphide transport from Bardarbunga to Scandinavia

    E-Print Network [OSTI]

    Grahn, Håkan; Brännström, Niklas

    2015-01-01

    On September 9 2014 several incidences of foul smell (rotten eggs) were reported on the coast of Norway (in particular in the vicinity of Molde) and then on September 10 in the interior parts of county V\\"asterbotten, Sweden. One of the theories that were put forward was that the foul smell was due to degassing of the Bardarbunga volcano on Iceland. Using satellite images (GOME-1,-2) of the sulphur dioxide, SO_2, contents in the atmosphere surrounding Iceland to estimate flux of SO_2 from the volcano and an atmospheric transport model, PELLO, we vindicate this theory: we argue that the cause for the foul smell was hydrogen sulphide originating from Bardarbunga. The model concentrations are also compared to SO_2 concentration measurements from Muonio, Finland.

  15. Modified Kubelka-Munk equations for localized waves inside a layered medium Matthew M. Haney*

    E-Print Network [OSTI]

    Boise State University

    - portance for topics such as the interaction of electrons with disorder 8 e.g., the metal-to-insulator of transparencies 6 , and the late-time behavior of seismic recordings at volcanoes 9 . Previous studies have been . The application of 1D RT to vertical seismic profiles has been the subject of work by Wu 12,13 and Wu and Xie 14

  16. Animal representations and animal remains at Çatalhöyük

    E-Print Network [OSTI]

    Russell, Nerissa; Meece, Stephanie

    2006-01-01

    (Level VII). Volcano above town plan, leopard skin above geometric design, or other representations? Level VI paintings lack fully convinc­ ing animal depictions. A patch of painting on the east wall of building VIA.66 includes a number of geomet­ ric... the centrepieces of the north walls of two rather similar buildings. In a sense they parallel the situation in the faunal assemblage, where cattle are not terribly common, but figure prominently in cer­ emonial consumption (see Russell & Martin, Volume 4...

  17. Eos,Vol. 85, No. 4, 27 January 2004 De Ronde,E.J.,G.J.Massoth,E.T.Baker,and J.E.Lupton,Sub-

    E-Print Network [OSTI]

    of hydrothermal vents on submarine arc volcanoes: Kasuga Seamounts,Northern Mariana Arc,Earth Planet.Sci.Lett.,114,517­528,1993. Norris,R.A.,and R.H.Johnson,Submarine volcanic eruptions recently located in the Pacific by Sofar/PMEL,Seattle,Wash.; G.J.Massoth,Institute of Geological and Nuclear Sciences,Lower Hutt,New Zealand;and K

  18. Melt zones beneath five volcanic complexes in California: an assessment of shallow magma occurrences

    SciTech Connect (OSTI)

    Goldstein, N.E.; Flexser, S.

    1984-12-01

    Recent geological and geophysical data for five magma-hydrothermal systems were studied for the purpose of developing estimates for the depth, volume and location of magma beneath each area. The areas studied were: (1) Salton Trough, (2) The Geysers-Clear Lake, (3) Long Valley caldera, (4) Coso volcanic field, and (5) Medicine Lake volcano, all located in California and all selected on the basis of recent volcanic activity and published indications of crustal melt zones. 23 figs.

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

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTIONRobertsdale, Alabama (Utility Company)| Open(Evans,Oregon:Volcano, Hawaii | Open Energy

  20. CoreFlow Scientific Solutions Ltd | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTIONRobertsdale, Alabama (Utility Company)| Open(Evans,Oregon:Volcano, Hawaii | Open

  1. Corinth, Maine: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTIONRobertsdale, Alabama (Utility Company)| Open(Evans,Oregon:Volcano, Hawaii | OpenCorinna,

  2. Corn Plus | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTIONRobertsdale, Alabama (Utility Company)| Open(Evans,Oregon:Volcano, Hawaii |

  3. Cornelius, North Carolina: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTIONRobertsdale, Alabama (Utility Company)| Open(Evans,Oregon:Volcano, Hawaii |North Carolina: Energy

  4. Cornelius, Oregon: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTIONRobertsdale, Alabama (Utility Company)| Open(Evans,Oregon:Volcano, Hawaii |North Carolina:

  5. Cornhusker Public Power Dist | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTIONRobertsdale, Alabama (Utility Company)| Open(Evans,Oregon:Volcano, Hawaii |North

  6. Corona Bioenergia SA | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTIONRobertsdale, Alabama (Utility Company)| Open(Evans,Oregon:Volcano, Hawaii |NorthCornia

  7. Corona, California: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTIONRobertsdale, Alabama (Utility Company)| Open(Evans,Oregon:Volcano, Hawaii |NorthCorniade

  8. Corporate Deduction | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTIONRobertsdale, Alabama (Utility Company)| Open(Evans,Oregon:Volcano, Hawaii

  9. Corporate Exemption | Open Energy Information

    Open Energy Info (EERE)

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  10. Corporate International Operations | Open Energy Information

    Open Energy Info (EERE)

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  11. Correlation Of Surface Heat Loss And Total Energy Production For Geothermal

    Open Energy Info (EERE)

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  12. Corson County, South Dakota: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

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  13. Cortland County, New York: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

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  14. Cortlandt, New York: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

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  15. Coskata | Open Energy Information

    Open Energy Info (EERE)

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  16. Cost Effectiveness of Electricity Energy Efficiency Programs | Open Energy

    Open Energy Info (EERE)

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  17. Costa Mesa, California: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

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  18. Costa Rica-Facilitating Implementation and Readiness for Mitigation (FIRM)

    Open Energy Info (EERE)

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  19. Costa Rica-Joint Programme on Resource Efficient and Cleaner Production

    Open Energy Info (EERE)

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  20. Coto de Caza, California: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

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  1. Cottage Grove, Wisconsin: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

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  2. Cottle County, Texas: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

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  3. Cotton Electric Coop, Inc | Open Energy Information

    Open Energy Info (EERE)

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  4. Modeling volcanic ash dispersal

    ScienceCinema (OSTI)

    None

    2011-10-06

    Explosive volcanic eruptions inject into the atmosphere large amounts of volcanic material (ash, blocks and lapilli). Blocks and larger lapilli follow ballistic and non-ballistic trajectories and fall rapidly close to the volcano. In contrast, very fine ashes can remain entrapped in the atmosphere for months to years, and may affect the global climate in the case of large eruptions. Particles having sizes between these two end-members remain airborne from hours to days and can cover wide areas downwind. Such volcanic fallout entails a serious threat to aircraft safety and can create many undesirable effects to the communities located around the volcano. The assessment of volcanic fallout hazard is an important scientific, economic, and political issue, especially in densely populated areas. From a scientific point of view, considerable progress has been made during the last two decades through the use of increasingly powerful computational models and capabilities. Nowadays, models are used to quantify hazard scenarios and/or to give short-term forecasts during emergency situations. This talk will be focused on the main aspects related to modeling volcanic ash dispersal and fallout with application to the well known problem created by the Eyjafjöll volcano in Iceland. Moreover, a short description of the main volcanic monitoring techniques is presented.

  5. Monitoring temporal opacity fluctuations of large structures with muon tomography : a calibration experiment using a water tower tank

    E-Print Network [OSTI]

    Kevin Jourde; Dominique Gibert; Jacques Marteau; Jean de Bremond d'Ars; Serge Gardien; Claude Girerd; Jean-Christophe Ianigro

    2015-04-09

    The idea of using secondary cosmic muons to scan the internal structure of a given body has known significant developments since the first archaeological application by Alvarez and collaborators on the Gizah pyramids. Recent applications cover the fields of volcanology, hydrology, civil engineering, mining, archaeology etc. Muon radiography features are essentially identical to those of medical X-ray imaging techniques. It is a contrast densitometry method using the screening effect of the body under study on the natural flux of cosmic muons. This technique is non-invasive and complements the standard geophysical techniques, e.g. electrical tomography or gravimetry. It may be applied to a large variety of geological targets, among which the domes of active volcanoes. In this context muon tomography presents the noticeable advantage to perform measurements of large volumes, with a large aperture, from a distant point, far from the potentially dangerous zones. The same conclusions apply regarding the monitoring of the volcano's activity since muon tomography provides continuous data taking, provided the muon detectors are sufficiently well designed and autonomous. Recent measurements on La Soufri\\`ere of Guadeloupe (Lesser Antilles, France) show, over a one year period, large modulations of the crossing muon flux, correlated with an increase of the activity in the dome. In order to firmly establish the sensitivity of the method and of our detectors and to disentangle the effects on the muon flux modulations induced by the volcano's hydrothermal system from those induced by other sources, e.g. atmospheric temperature and pressure, we perform a dedicated calibration experiment inside a water tower tank. We show how the method is fully capable of dynamically following fast variations in the density.

  6. The Potential of Continuous, Local Atomic Clock Measurements for Earthquake Prediction and Volcanology

    E-Print Network [OSTI]

    Bondarescu, Mihai; Jetzer, Philippe; Lundgren, Andrew

    2015-01-01

    Modern optical atomic clocks along with the optical fiber technology currently being developed can measure the geoid, which is the equipotential surface that extends the mean sea level on continents, to a precision that competes with existing technology. In this proceeding, we point out that atomic clocks have the potential to not only map the sea level surface on continents, but also look at variations of the geoid as a function of time with unprecedented timing resolution. The local time series of the geoid has a plethora of applications. These include potential improvement in the predictions of earthquakes and volcanoes, and closer monitoring of ground uplift in areas where hydraulic fracturing is performed.

  7. Origin of basalts by hybridisation in andesite-dominated arcs

    E-Print Network [OSTI]

    Cassidy, Michael; Edmonds, Marie; Watt, Sebastian F. L.; Palmer, Martin R.; Gernon, Thomas M.

    2015-02-16

    seen in the erupted magmas 428 (Cashman and Blundy, 2013). These authors suggest that magma storage systems under most 429 arc volcanoes are dominated by similar processes, where crystal mushes are fed by hotter, 430 slightly more mafic magma... (most common) and reverse zoning at the 476 rim of the crystal (Figs. 5c, 6, 7 and 12a). Many of the Group 1 olivines exhibit normal 477 zoning at the rims, consistent with magma from a primitive mush entrained into a more 478 evolved storage system...

  8. The cooperative monitoring of military forces: An exercise in strategy

    SciTech Connect (OSTI)

    1998-04-01

    This exercise examines a hypothetical security problem associated with conventional military forces and border security: a surprise attack. The goal of the exercise is to provide an opportunity to think about how cooperative monitoring can be part of regional security. Two hypothetical countries, VOLCANOES and MOUNTAINS, have been created for this exercise based on the US states of Arizona and New Mexico. They were selected for their size and variety of terrain. Hypothetical background information and characteristics of the two countries are provided. An outline of activities is given, including prioritization of security concerns and monitoring of objectives for security concerns. 6 tabs.

  9. Solar Event Simulations using the HAWC Scaler System

    E-Print Network [OSTI]

    Enriquez-Rivera, O; Caballero-Lopez, R

    2015-01-01

    The High Altitude Water Cherenkov (HAWC) Observatory is an air shower array located near the volcano Sierra Negra in Mexico. The observatory has a scaler system sensitive to low energy cosmic rays (the geomagnetic cutoff for the site is 8 GV) suitable for conducting studies of solar or heliospheric transients such as Ground Level Enhancements (GLEs) and Forbush decreases. In this work we present the simulation of the HAWC response to these phenomena. We computed HAWC effective areas for different array configurations (different selection of photomultiplier tubes per detector) relevant for Forbush decreases and GLEs.

  10. Orientation Visit to the Portsmouth Gaseous Diffusion Plant

    Office of Environmental Management (EM)

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  11. A Preparation Zone For Volcanic Explosions Beneath Naka-Dake Crater, Aso

    Open Energy Info (EERE)

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  12. A Primitive Alkali Basaltic Stratovolcano And Associated Eruptive Centres,

    Open Energy Info (EERE)

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  13. Accidental Gas Emission From Shallow Pressurized Aquifers At Alban Hills

    Open Energy Info (EERE)

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  14. Accio Energy Inc | Open Energy Information

    Open Energy Info (EERE)

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  15. Acciona Renault Nissan Alliance JV | Open Energy Information

    Open Energy Info (EERE)

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  16. Active System For Monitoring Volcanic Activity- A Case Study Of The

    Open Energy Info (EERE)

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  17. Active and Passive Remote Sensing Diagram | Open Energy Information

    Open Energy Info (EERE)

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  18. Acumentrics Corp | Open Energy Information

    Open Energy Info (EERE)

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  19. Acushnet Center, Massachusetts: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

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  20. Ada County, Idaho ASHRAE 169-2006 Climate Zone | Open Energy Information

    Open Energy Info (EERE)

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  1. Ada, Ohio: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

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  2. Adair County, Iowa ASHRAE 169-2006 Climate Zone | Open Energy Information

    Open Energy Info (EERE)

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  3. Adair County, Kentucky ASHRAE 169-2006 Climate Zone | Open Energy

    Open Energy Info (EERE)

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  4. Adair County, Missouri ASHRAE 169-2006 Climate Zone | Open Energy

    Open Energy Info (EERE)

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  5. Conduction Models Of The Temperature Distribution In The East Rift Zone Of

    Open Energy Info (EERE)

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  6. Conduction-Dominated Geothermal Systems | Open Energy Information

    Open Energy Info (EERE)

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  7. Core Lithology, Valles Caldera No. 1, New Mexico | Open Energy Information

    Open Energy Info (EERE)

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  8. Core Log Valles Caldera No. 2A, New Mexico | Open Energy Information

    Open Energy Info (EERE)

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  9. Corinna, Maine: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

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  10. Corix Utilities | Open Energy Information

    Open Energy Info (EERE)

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  11. Corn Belt Power Coop | Open Energy Information

    Open Energy Info (EERE)

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  12. Corn LP formerly Central Iowa Renewable Energy | Open Energy Information

    Open Energy Info (EERE)

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  13. Cornell Fuel Cell Institute | Open Energy Information

    Open Energy Info (EERE)

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  14. Cornia 2 Geothermal Power Station | Open Energy Information

    Open Energy Info (EERE)

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  15. Corning, Iowa: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

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  16. Corning, New York: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

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  17. Cornville, Arizona: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

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  18. Cornwall, Vermont: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

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  19. Corona de Tucson, Arizona: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

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  20. Coronado, California: Energy Resources | Open Energy Information

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  1. Corporate Depreciation | Open Energy Information

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  2. Corral Space Heating Low Temperature Geothermal Facility | Open Energy

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  3. Cortland, Ohio: Energy Resources | Open Energy Information

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  4. Corum Solar Co Ltd | Open Energy Information

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  5. Corvallis, Oregon: Energy Resources | Open Energy Information

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  6. Coryell County, Texas: Energy Resources | Open Energy Information

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  7. Coshocton County, Ohio: Energy Resources | Open Energy Information

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  8. Cosmo Powertech Pvt Ltd | Open Energy Information

    Open Energy Info (EERE)

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  9. Coso Junction, California: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

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  10. Costa Rica: Energy Resources | Open Energy Information

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  11. Costco | Open Energy Information

    Open Energy Info (EERE)

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  12. Costilla County, Colorado: Energy Resources | Open Energy Information

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  13. Costruzioni Solari srl | Open Energy Information

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  14. Cottage Lake, Washington: Energy Resources | Open Energy Information

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  15. Cotton County, Oklahoma: Energy Resources | Open Energy Information

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  16. Cottonwood County, Minnesota: Energy Resources | Open Energy Information

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  17. Geothermal energy resource investigations at Mt. Spurr, Alaska

    SciTech Connect (OSTI)

    Turner, D.L.; Wescott, E.M. (eds.)

    1986-12-01

    Spurr volcano is a composite Quaternary cone of largely andesitic composition located on the west side of Cook Inlet about 80 miles west of Anchorage and about 40 miles from the Beluga electrical transmission line. Geologic mapping (Plate 1-1) shows that the present summit depression was produced by a Mt. St. Helens-type sector collapse, rather than by a caldera collapse. Geochronologic and previous tephrachronologic studies show that there has been an active magmatic system at Spurr volcano during the late Pleistocene-to-Holocene time interval that is of critical interest for geothermal energy resource assessment. Major effort was devoted to geochemical and geophysical surveys of the accessible area south of Mt. Spurr, in addition to geologic mapping and geochronologic studies. Many coincident mercury and helium anomalies were found, suggesting the presence of geothermal systems at depth. Extremely large electrical self-potential anomalies were also found, together with extensive zones of low resistivity discovered by our controlled-source audiomagnetotelluric survey. The juxtaposition of all of these different types of anomalies at certain areas on the south slope of Crater Peak indicates the presence of a geothermal system which should be accessible by drilling to about 2000 ft depth. It is also evident that there is a strong volcanic hazard to be evaluated in considering any development on the south side of Mt. Spurr. This hazardous situation may require angle drilling of production wells from safer areas and placement of power generation facilities at a considerable distance from hazardous areas.

  18. Geothermal Resources Assessment in Hawaii

    SciTech Connect (OSTI)

    Thomas, D.M.

    1984-10-01

    The Hawaii Geothermal Resources Assessment Program was initiated in 1978. The preliminary phase of this effort identified 20 Potential Geothermal Resource Areas (PGRA's) using available geological, geochemical and geophysical data. The second phase of the Assessment Program undertook a series of field studies, utilizing a variety of geothermal exploration techniques, in an effort to confirm the presence of thermal anomalies in the identified PGRA's and, if confirmed, to more completely characterize them. A total of 15 PGRA's on four of the five major islands in the Hawaiian chain were subject to at least a preliminary field analysis. The remaining five were not considered to have sufficient resource potential to warrant study under the personnel and budget constraints of the program. The island of Kauai was not studied during the current phase of investigation. Geothermal field studies were not considered to be warranted due to the absence of significant geochemical or geophysical indications of a geothermal resource. The great age of volcanism on this island would further suggest that should a thermal resource be present, it would be of low temperature. The geothermal field studies conducted on Oahu focused on the caldera complexes of the two volcanic systems which form the island: Waianae volcano and Koolau volcano. The results of these studies and the interpreted probability for a resource are presented.

  19. SIMULATION OF THE ICELAND VOLCANIC ERUPTION OF APRIL 2010 USING THE ENSEMBLE SYSTEM

    SciTech Connect (OSTI)

    Buckley, R.

    2011-05-10

    The Eyjafjallajokull volcanic eruption in Iceland in April 2010 disrupted transportation in Europe which ultimately affected travel plans for many on a global basis. The Volcanic Ash Advisory Centre (VAAC) is responsible for providing guidance to the aviation industry of the transport of volcanic ash clouds. There are nine such centers located globally, and the London branch (headed by the United Kingdom Meteorological Office, or UKMet) was responsible for modeling the Iceland volcano. The guidance provided by the VAAC created some controversy due to the burdensome travel restrictions and uncertainty involved in the prediction of ash transport. The Iceland volcanic eruption provides a useful exercise of the European ENSEMBLE program, coordinated by the Joint Research Centre (JRC) in Ispra, Italy. ENSEMBLE, a decision support system for emergency response, uses transport model results from a variety of countries in an effort to better understand the uncertainty involved with a given accident scenario. Model results in the form of airborne concentration and surface deposition are required from each member of the ensemble in a prescribed format that may then be uploaded to a website for manipulation. The Savannah River National Laboratory (SRNL) is the lone regular United States participant throughout the 10-year existence of ENSEMBLE. For the Iceland volcano, four separate source term estimates have been provided to ENSEMBLE participants. This paper focuses only on one of those source terms. The SRNL results in relation to other modeling agency results along with useful information obtained using an ensemble of transport results will be discussed.

  20. Atomic clocks as a tool to monitor vertical surface motion

    E-Print Network [OSTI]

    Bondarescu, Ruxandra; Lundgren, Andrew; Hetényi, György; Houlié, Nicolas; Jetzer, Philippe; Bondarescu, Mihai

    2015-01-01

    Atomic clock technology is advancing rapidly, now reaching stabilities of $\\Delta f/f \\sim 10^{-18}$, which corresponds to resolving $1$ cm in equivalent geoid height over an integration timescale of about 7 hours. At this level of performance, ground-based atomic clock networks emerge as a tool for monitoring a variety of geophysical processes by directly measuring changes in the gravitational potential. Vertical changes of the clock's position due to magmatic, volcanic, post-seismic or tidal deformations can result in measurable variations in the clock tick rate. As an example, we discuss the geopotential change arising due to an inflating point source (Mogi model), and apply it to the Etna volcano. Its effect on an observer on the Earth's surface can be divided into two different terms: one purely due to uplift and one due to the redistribution of matter. Thus, with the centimetre-level precision of current clocks it is already possible to monitor volcanoes. The matter redistribution term is estimated to b...

  1. Alaska Open-file Report 144 Assessment of Thermal Springs Sites Aleutian Arc, Atka Island to Becherof Lake -- Preliminary Results and Evaluation

    SciTech Connect (OSTI)

    Motyka, R.J.; Moorman, M.A.; Liss, S.A.

    1981-12-01

    Twenty of more than 30 thermal spring areas reported to exist in the Aleutian arc extending from Atka Island to Becherof Lake were investigated during July and August, 1980. Thermal activity of three of these sites had diminished substantially or no longer existed. At least seven more sites where thermal-spring activity is probable or certain were not visited because of their remoteness or because of time constraints. The existence of several other reported thermal spring sites could not be verified; these sites are considered questionable. On the basis of geothermometry, subsurface reservoir temperatures in excess of 150 C are estimated for 10 of the thermal spring sites investigated. These sites all occur in or near regions of Recent volcanism. Five of the sites are characterized by fumaroles and steaming ground, indicating the presence of at least a shallow vapor-dominated zone. Two, the Makushin Valley and Glacier Valley thermal areas, occur on the flanks of active Mukushin Volcano located on Unalaska Island, and may be connected to a common source of heat. Gas geothermometry suggests that the reservoir feeding the Kliuchef thermal field, located on the flanks of Kliuchef volcano of northeast Atka Island, may be as high as 239 C.

  2. Center for Volcanic and Tectonic Studies, Department of Geoscience annual report, October 1, 1989--September 30, 1990

    SciTech Connect (OSTI)

    Smith, E.I. [Nevada Univ., Las Vegas, NV (United States). Center for Volcanic and Tectonic Studies

    1990-11-01

    This report summarizes our activities during the period October 1, 1989 to September 30, 1990. Our goal was to develop an understanding of late-Miocene and Pliocene volcanism in the Great Basin by studying Pliocene volcanoes in the vicinity of the proposed high-level nuclear waste repository at Yucca Mountain, Nevada. Field studies during this period concentrated on the Quaternary volcanoes in Crater Flat, Yucca Mountain, Fortification Hill, at Buckboard Mesa and Sleeping Butte, and in the Reveille Range. Also, a study was initiated on structurally disrupted basaltic rocks in the northern White Hills of Mohave County, Arizona. As well as progress reports of our work in Crater Flat, Fortification Hill and the Reveille Range, this paper also includes a summary of model that relates changing styles of Tertiary extension to changing magmatic compositions, and a summary of work being done in the White Hills, Arizona. In the Appendix, we include copies of published papers not previously incorporated in our monthly reports.

  3. Structure of Precambrian crust in the U. S. from COCORP deep seismic profiling

    SciTech Connect (OSTI)

    Brown, L.D. (Cornell Univ., Ithaca, NY (United States))

    1992-01-01

    COCORP and industry seismic reflection profiles probing beneath the thin veneer of Paleozoic sedimentary rocks of the US mid-continent are mapping a complex, largely unknown three dimensional mosaic of major fault zones and sutures, a highly variable Moho, and extensive sequences of unexplored volcanic and/or sedimentary strata. Key features of the Precambrian suggested by COCORP and other deep profiling include: Pervasive, distributed reflectivity, often diffractive, dominating the middle and lower crust. Moho that is rarely reflective, usually evident as a downward transition of distributed crustal reflectivity into mantle transparency. Volcano-clastic filled graben of the late Proterozoic Keweenawan rift buried beneath Paleozoic strata in Kansas and Michigan. Extensive, subhorizontal Precambrian stratification in the upper crust beneath the east- central US and the Texas-Oklahoma border region, argued to be either an extensive volcano-clastic basin, a voluminous felsic volcanic outpouring or a major intrusive sill complex. Crustal penetrating, dipping reflection zones that mark known (Grenville front) or inferred (Cashocton zone, Trans-Hudson orogen) shear zones. Non-reflective ( ) basement beneath the Appalachian foreland suggesting transparent massifs'' that serve as collisional buttresses during terrane accretion. Deep structure is sometimes at odds with simple extrapolations of surface geology. Clearly deep seismic profiling has only begun to reveal the buried craton in the US. It is time for an integrated program for the systematic exploration of this special scientific frontier.

  4. A Study of the Correlation Between Electrical Resistivity and Matric Suction for Unsaturated Ash-Fall Pyroclastic Soils in the Campania Region (Southern Italy)

    E-Print Network [OSTI]

    De Vita, Pantaleone; Piegari, Ester

    2011-01-01

    In the territory of the Campania region (southern Italy), critical rainfall events periodically trigger dangerous fast slope movements involving ashy and pyroclastic soils originated by the explosive phases of the Mt. Somma-Vesuvius volcano and deposited along the surrounding mountain ranges. In this paper, an integration of engineering-geological and geophysical measurements is presented to characterize unsaturated pyroclastic samples collected in a test area on the Sarno Mountains (Salerno and Avellino provinces, Campania region). The laboratory analyses were aimed at defining both soil water retention and electrical resistivity curves versus water content. From the matching of the experimental data, a direct relationship between electrical resistivity and matric suction is retrieved for the investigated soil horizons typical of a ash-fall pyroclastic succession. The obtained relation turns out to be helpful in characterizing soils up to close saturation, which is a critical condition for the trigger of slo...

  5. Summary of the chemical characteristics of the HGP-A well; Puna, Hawaii

    SciTech Connect (OSTI)

    Thomas, D.M.

    1982-01-01

    The HGP-A geothermal well is located on the Lower East Rift Zone of Kilauea Volcano. It was completed in 1976 to a depth of 1966 meters and has a bottomhole temperature of 360/sup 0/C. Evaluation of the chemistry of the fluids produced indicate that recharge to the reservoir discovered by the HGP-A well is largely fresh meteoric water with smaller amounts of seawater recharge. The changes in fluid chemistry during production suggest that at least two separate aquifers are providing fluids to the well and that silica deposition is occurring in the reservoir formation. Isotopic data indicate that the fluid circulation and residence times in the reservoir are relatively short and that the heat source for this part of the rift zone is either very young or relatively large.

  6. Volcanic gas emissions and their effect on ambient air character

    SciTech Connect (OSTI)

    Sutton, A.J.; Elias, T.

    1994-01-01

    This bibliography was assembled to service an agreement between Department of Energy and the USGS to provide a body of references and useful annotations for understanding background gas emissions from Kilauea volcano. The current East Rift Zone (ERZ) eruption of Kilauea releases as much as 500,000 metric tonnes of SO{sub 2} annually, along with lesser amounts of other chemically and radiatively active species including H{sub 2}S, HCl, and HF. Primary degassing locations on Kilauea are located in the summit caldera and along the middle ERZ. The effects of these emissions on ambient air character are a complex function of chemical reactivity, source geometry and effusivity, and local meteorology. Because of this complexity, we organized the bibliography into three main sections: (1) characterizing gases as they leave the edifice; (2) characterizing gases and chemical reaction products away from degassing sources; and (3) Hawaii Island meteorology.

  7. Loki, Io: New groundbased observations and a model describing the change from periodic overturn

    E-Print Network [OSTI]

    Julie A. Rathbun; John R. Spencer

    2006-05-09

    Loki Patera is the most powerful volcano in the solar system. We have obtained measurements of Loki's 3.5 micron brightness from NASA's Infrared Telescope Facility (IRTF) and have witnessed a change from the periodic behavior previously noted. While Loki brightened by a factor of several every 540 days prior to 2001, from 2001 through 2004 Loki remained at a constant, medium brightness. We have constructed a quantitative model of Loki as a basaltic lava lake whose solidified crust overturns when it becomes buoyantly unstable. By altering the speed at which the overturn propagates across the patera, we can match our groundbased brightness data. In addition, we can match other data taken at other times and wavelengths. By slowing the propagation speed dramatically, we can match the observations from 2001-2004. This slowing may be due to a small change in volatile content in the magma.

  8. Acoustic emission associated with the bursting of a gas bubble at the free surface of a non-newtonian fluid

    E-Print Network [OSTI]

    Thibaut Divoux; Valérie Vidal; Francisco Melo; Jean-Christophe Géminard

    2008-07-01

    We report experimental measurements of the acoustic emission associated with the bursting of a gas bubble at the free surface of a non-newtonian fluid. On account of the viscoelastic properties of the fluid, the bubble is generally elongated. The associated frequency and duration of the acoustic signal are discussed with regard to the shape of the bubble and successfully accounted for by a simple linear model. The acoustic energy exhibits a high sensitivity to the dynamics of the thin film bursting, which demonstrates that, in practice, it is barely possible to deduce from the acoustic measurements the total amount of energy released by the event. Our experimental findings provide clues for the understanding of the signals from either volcanoes or foams, where one observes respectively, the bursting of giant bubbles at the free surface of lava and bubble bursting avalanches.

  9. Ash plume properties retrieved from infrared images: a forward and inverse modeling approach

    E-Print Network [OSTI]

    Cerminara, Matteo; Valade, Sébastien; Harris, Andrew J L

    2014-01-01

    We present a coupled fluid-dynamic and electromagnetic model for volcanic ash plumes. In a forward approach, the model is able to simulate the plume dynamics from prescribed input flow conditions and generate the corresponding synthetic thermal infrared (TIR) image, allowing a comparison with field-based observations. An inversion procedure is then developed to retrieve ash plume properties from TIR images. The adopted fluid-dynamic model is based on a one-dimensional, stationary description of a self-similar (top-hat) turbulent plume, for which an asymptotic analytical solution is obtained. The electromagnetic emission/absorption model is based on the Schwarzschild's equation and on Mie's theory for disperse particles, assuming that particles are coarser than the radiation wavelength and neglecting scattering. [...] Application of the inversion procedure to an ash plume at Santiaguito volcano (Guatemala) has allowed us to retrieve the main plume input parameters, namely the initial radius $b_0$, velocity $U_...

  10. Preliminary Analysis of Stress in the Newberry EGS Well NWG 55-29

    SciTech Connect (OSTI)

    Nicholas C. Davatzes, Stephen H. Hickman

    2011-10-23

    As part of the planning for stimulation of the Newberry Volcano Enhanced Geothermal Systems (EGS) Demonstration project in Oregon, a high-resolution borehole televiewer (BHTV) log was acquired using the ALT ABI85 BHTV tool in the slightly deviated NWG 55-29 well. The image log reveals an extensive network of fractures in a conjugate set striking approximately N-S and dipping 50���° that are well oriented for normal slip and are consistent with surface-breaking regional normal faults in the vicinity. Similarly, breakouts indicate a consistent minimum horizontal stress, Shmin, azimuth of 092.3���±17.3���°. In conjunction with a suite of geophysical logs, a model of the stress magnitudes constrained by the width of breakouts at depth and a model of rock strength independently indicates a predominantly normal faulting stress regime.

  11. Geothermal energy development in Washington State. A guide to the federal, state and local regulatory process

    SciTech Connect (OSTI)

    Bloomquist, R.G.; Simpson, S.J.

    1986-03-01

    Washington State's geothermal potential is wide spread. Hot springs and five strato volcanoes existing throughout the Cascade Range, limited hot spring activity on the Olympic Peninsula, and broad reaching, low temperature geothermal resources found in the Columbia Basin comprise the extent of Washington's known geothermal resources. Determination of resource ownership is the first step in proceeding with geothermal exploration and development activities. The federal and state processes are examined from pre-lease activity through leasing and post-lease development concerns. Plans, permits, licenses, and other requirements are addressed for the federal, state, and local level. Lease, permit, and other forms for a number of geothermal exploration and development activities are included. A map of public lands and another displaying the measured geothermal resources throughout the state are provided.

  12. Mantle helium and carbon isotopes in Separation Creek Geothermal Springs, Three Sisters area, Central Oregon: Evidence for renewed volcanic activity or a long term steady state system?

    SciTech Connect (OSTI)

    van Soest, M.C.; Kennedy, B.M.; Evans, W.C.; Mariner, R.H.

    2002-04-30

    Cold bubbling springs in the Separation Creek area, the locus of current uplift at South Sister volcano show strong mantle signatures in helium and carbon isotopes and CO{sub 2}/{sup 3}He. This suggests the presence of fresh basaltic magma in the volcanic plumbing system. Currently there is no evidence to link this system directly to the uplift, which started in 1998. To the contrary, all geochemical evidence suggests that there is a long-lived geothermal system in the Separation Creek area, which has not significantly changed since the early 1990s. There was no archived helium and carbon data, so a definite conclusion regarding the strong mantle signature observed in these tracers cannot yet be drawn. There is a distinct discrepancy between the yearly magma supply required to explain the current uplift (0.006 km{sup 3}/yr) and that required to explain the discharge of CO{sub 2} from the system (0.0005 km{sup 3}/yr). This discrepancy may imply that the chemical signal associated with the increase in magma supply has not reached the surface yet. With respect to this the small changes observed at upper Mesa Creek require further attention, due to the recent volcanic vent in that area it may be the location were the chemical signal related to the uplift can most quickly reach the surface. Occurrence of such strong mantle signals in cold/diffuse geothermal systems suggests that these systems should not be ignored during volcano monitoring or geothermal evaluation studies. Although the surface-expression of these springs in terms of heat is minimal, the chemistry carries important information concerning the size and nature of the underlying high-temperature system and any changes taking place in it.

  13. Determination of the total grain size distributionin a vulcanian eruption column, and its implications to stratospheric aerosol perturbation

    SciTech Connect (OSTI)

    Murrow, P.J.; Rose, W.I. Jr.; Self, S.

    1980-11-01

    Grain size analysis of samples representing all sampleable portions of the airfall deposit produced by the Fuego volcano in Guatemala on 14 October 1974 form the basis for estimating the total grain size distribution of tephra from this eruption. The region enclosed by each isopach has a particular average grain size distribution which can be weighted proportionally to its percentage volume. The grain size of pyroclastic avalanche deposits produced during the eruption are also included. The total grain size distribution calculated as a sum of weighted distributions has a median grain size of 0.80 (0.6mm) and a sorting coefficient (sigma0) of 2.3. The size distribution seems to approximate Rosin and Rammler's law of crushing and this observation allows us to estimate that no more than 15% volume of the fine tail of the total size distribution is likely to be missing. The ash composed of these fine particles did not fall in the region of the volcano as part of the recognizable tephra blanket. The eruption column reached well into the stratosphere: heights estimated from the ground were 10 to 12 km above sea level but estimated heights based on mass flux rates are higher (18 to 23 km). The proportion of ash smaller than 2 ..mu..m, which could remain for substantial periods in the stratosphere, is no more than 0.8% volume of the total. It seems probable that acid aerosol particles from vulcanian type eruptions are more important to stratospheric aerosol perturbation than fine silicate ash particles by at least an order of magnitude.

  14. Characterize Framework for Igneous Activity at Yucca Mountain, Nevada

    SciTech Connect (OSTI)

    F. Perry; R. Youngs

    2004-10-14

    The purpose of this scientific analysis report is threefold: (1) Present a conceptual framework of igneous activity in the Yucca Mountain region (YMR) consistent with the volcanic and tectonic history of this region and the assessment of this history by experts who participated in the probabilistic volcanic hazard analysis (PVHA) (CRWMS M&O 1996 [DIRS 100116]). Conceptual models presented in the PVHA are summarized and applied in areas in which new information has been presented. Alternative conceptual models are discussed, as well as their impact on probability models. The relationship between volcanic source zones defined in the PVHA and structural features of the YMR are described based on discussions in the PVHA and studies presented since the PVHA. (2) Present revised probability calculations based on PVHA outputs for a repository footprint proposed in 2003 (BSC 2003 [DIRS 162289]), rather than the footprint used at the time of the PVHA. This analysis report also calculates the probability of an eruptive center(s) forming within the repository footprint using information developed in the PVHA. Probability distributions are presented for the length and orientation of volcanic dikes located within the repository footprint and for the number of eruptive centers (conditional on a dike intersecting the repository) located within the repository footprint. (3) Document sensitivity studies that analyze how the presence of potentially buried basaltic volcanoes may affect the computed frequency of intersection of the repository footprint by a basaltic dike. These sensitivity studies are prompted by aeromagnetic data collected in 1999, indicating the possible presence of previously unrecognized buried volcanoes in the YMR (Blakely et al. 2000 [DIRS 151881]; O'Leary et al. 2002 [DIRS 158468]). The results of the sensitivity studies are for informational purposes only and are not to be used for purposes of assessing repository performance.

  15. Role of the oceans in the atmospheric cycle of carbonyl sulfide. Doctoral thesis

    SciTech Connect (OSTI)

    Johnson, J.E.

    1985-01-01

    Carbonyl sulfide (OCS) is both the dominant sulfur gas in the remote troposphere and, along with volcanoes, a major source of sulfur for the stratospheric sulfate layer. Prior to this work the ocean was regarded as a major sink for atmospheric OCS. The purpose of this study has been to assess the magnitude of the global air-sea flux of OCS. The author designed an analytical system which was centered around a Varian-3700 gas chromatograph with a flame-photometric detector. To increase the sensitivity of the detector, the hydrogen gas for the flame was doped with sulfur hexafloride. Air samples were concentrated in a liquid nitrogen cooled freeze-out loop, then injected into the gas chromatograph. Water samples purged with sulfur-free zero-air which was analyzed similarly. The author also built a permeation tube system for chemical standardization. This equipment was taken on two oceanographic cruises on the Pacific Ocean on board the NOAA ship DISCOVERER, one in the spring of 1983 and a second in the spring of 1984. Both of these cruises included measurements of air and sea-water concentrations of OCS.

  16. Role of the oceans in the atmospheric cycle of carbonyl sulfide

    SciTech Connect (OSTI)

    Johnson, J.E.

    1985-01-01

    Carbonyl sulfide (OCS) is both the dominant sulfur gas in the remote troposphere and, along with volcanoes, a major source of sulfur for the stratospheric sulfate layer. Prior to this work the ocean was regarded as a major sink for atmospheric OCS. The purpose of this study has been to assess the magnitude of the global air-sea flux of OCS. The author designed an analytical system which was centered around a Varian-3700 gas chromatograph with a flame-photometric detector. To increase the sensitivity of the detector, the hydrogen gas for the flame was doped with sulfur hexafluoride. Air samples were concentrated in a liquid nitrogen cooled freeze-out loop, then injected into the gas chromatograph. Water samples purged with sulfur-free zero-air which was analyzed similarly. He also built a permeation tube system for chemical standardization. This equipment was taken on two oceanographic cruises on the Pacific Ocean, one in the spring of 1983 and a second in the spring of 1983. Both of these cruises included measurements of air and seawater concentrations of OCS from the equator to the Aleutian Islands. The Henry's law constant of solubility for OCS was measured in the laboratory for filtered and boiled seawater at three temperatures.

  17. Intermittent outgassing through a non-Newtonian fluid

    E-Print Network [OSTI]

    Thibaut Divoux; Eric Bertin; Valérie Vidal; Jean-Christophe Géminard

    2009-05-14

    We report an experimental study of the intermittent dynamics of a gas flowing through a column of a non-Newtonian fluid. In a given range of the imposed constant flow rate, the system spontaneously alternates between two regimes: bubbles emitted at the bottom either rise independently one from the other or merge to create a winding flue which then connects the bottom air entrance to the free surface. The observations are reminiscent of the spontaneous changes in the degassing regime observed on volcanoes and suggest that, in the nature, such a phenomenon is likely to be governed by the non-Newtonian properties of the magma. We focus on the statistical distribution of the lifespans of the bubbling and flue regimes in the intermittent steady state. The bubbling regime exhibits a characteristic time whereas, interestingly, the flue lifespan displays a decaying power-law distribution. The associated exponent, which is significantly smaller than the value 1.5 often reported experimentally and predicted in some standard intermittency scenarios, depends on the fluid properties and can be interpreted as the ratio of two characteristic times of the system.

  18. Correlating the hydrogen evolution reaction activity in alkaline electrolytes with the hydrogen binding energy on monometallic surfaces

    SciTech Connect (OSTI)

    Sheng, WC; Myint, M; Chen, JGG; Yan, YS

    2013-05-01

    The slow reaction kinetics of the hydrogen evolution and oxidation reactions (HER/HOR) on platinum in alkaline electrolytes hinders the development of alkaline electrolysers, solar hydrogen cells and alkaline fuel cells. A fundamental understanding of the exchange current density of the HER/HOR in alkaline media is critical for the search and design of highly active electrocatalysts. By studying the HER on a series of monometallic surfaces, we demonstrate that the HER exchange current density in alkaline solutions can be correlated with the calculated hydrogen binding energy (HBE) on the metal surfaces via a volcano type of relationship. The HER activity varies by several orders of magnitude from Pt at the peak of the plot to W and Au located on the bottom of each side of the plot, similar to the observation in acids. Such a correlation suggests that the HBE can be used as a descriptor for identifying electrocatalysts for HER/HOR in alkaline media, and that the HER exchange current density can be tuned by modifying the surface chemical properties.

  19. Preliminary geothermal evaluation of the Mokapu Peninsula on the Island of Oahu, Hawaii

    SciTech Connect (OSTI)

    Not Available

    1981-08-01

    Preliminary geological, geochemical, and geophysical field surveys have been conducted on Mokapu Peninsula on the island of Oahu in an effort to determine whether sufficient indications of geothermal potential exist within or adjacent to the peninsula to justify further, more detailed, exploratory efforts. An evaluation of existing geologic data as well as recently completed mapping on Mokapu indicate that the peninsula is located on the edge of or immediately adjacent to the inferred caldera of Koolau volcano. Geochemical surveys conducted within and around the Mokapu Peninsula included mercury and radon ground gas surveys as well as a limited evaluation of groundwater chemistry. Groundwater sampling on Mokapu Peninsula was severely restricted due to the absence of wells within the study area and thus water chemistry analyses were limited to the Nuupia fish ponds. Schlumberger resistivity soundings were completed in three locations on the peninsula: KVS1, in the northeast quadrant within the Ulupau crater, KVS2 in the northwest quadrant along the main jet runway, and KVS3 in the southeast along Mokapu Road. KVS1 encountered a relatively high resistivity to a depth of approximately 20 meters below sea level which was underlain by a basement resistivity of about 2 to 3 ohm meters. KVS2 and KVS3 detected similar resistivities of 2 to 3 ohm meters at much shallower depths (approximately equivalent to local sea level) below a thin, moderately resistive layer having an impedance ranging from 15 to 118 ohm meters.

  20. Basaltic island sand provenance

    SciTech Connect (OSTI)

    Marsaglia, K.M. . Dept. of Geological Sciences)

    1992-01-01

    The Hawaiian Islands are an ideal location to study basaltic sand provenance in that they are a series of progressively older basaltic shield volcanoes with arid to humid microclimates. Sixty-two sand samples were collected from beaches on the islands of Hawaii, Maui, Oahu and Kauai and petrographically analyzed. The major sand components are calcareous bioclasts, volcanic lithic fragments, and monomineralic grains of dense minerals and plagioclase. Proportions of these components vary from island to island, with bioclastic end members being more prevalent on older islands exhibiting well-developed fringing reef systems and volcanic end members more prevalent on younger, volcanically active islands. Climatic variations across the island of Hawaii are reflected in the percentage of weathered detritus, which is greater on the wetter, northern side of the island. The groundmass of glassy, basaltic lithics is predominantly black tachylite, with lesser brown sideromelane; microlitic and lathwork textures are more common than holohyaline vitric textures. Other common basaltic volcanic lithic fragments are holocrystalline aggregates of silt-sized pyroxene or olivine, opaque minerals and plagioclase. Sands derived from alkalic lavas are texturally and compositionally indistinguishable from sands derived from tholeiitic lavas. Although Hawaiian basaltic sands overlap in composition with magmatic arc-derived sands in terms of their relative QFL, QmPK and LmLvLs percentages, they are dissimilar in that they lack felsic components and are more enriched in lathwork volcanic lithic fragments, holocrystalline volcanic lithic fragments, and dense minerals.