This node provides geothermal resources from the Energy & Geoscience Institute (EGI) at the University of Utah, home to leading experts in the fields of geology, geophysics, geochemistry, and engineering. It is the world’s largest University based industry cost-shared upstream E&P research program of its kind, with 65+ Corporate Associate members representing 20 countries.
The SMU Geothermal Lab is an active research facility with a variety of ongoing geothermal resource projects which strive to broaden the understanding and use of geothermal energy, from the simplest form - geothermal heat pumps for buildings, to the large-scale deployment of geothermal power plants providing energy for our cities while also exploring opportunities to integrate renewable geothermal projects in an oil & gas setting.
The US Geoscience Information Network Geothermal Catalog provides resources from various data partners including the AASG State Geothermal Data Repository, the Canadian Geothermal Energy Association, and the Stanford Geothermal Workshop proceedings.
Bibliography of information on Alaska volcanoes. Please see the Alaska Department of Natural Resources publication sales page for information on ordering data on DVD at http://www.dggs.alaska.gov/publications/publication-sales.php.
Fugro Gravity and Magnetics Services (Houston) with Fugro Electro Magnetics Italy Srl carried out a full tensor, broadband magnetotelluric survey of 59 soundings under contract from University of Alaska. Two MT field teams deployed up to 3 MT systems each (ADU-07e Metronix receivers and sensors) for overnight recording, thus producing up to 6 MT soundings per day. Fieldwork was completed between August 13 and August 28, 2012. Inversion for 3D resistivity structure was performed using the Fugro RLM-3D MT code. Full tensor complex impedances were inverted in the frequency range from 0.032 Hz to 5.62 kHz, using 4 frequencies per decade, on a 384 core cluster. Both unconstrained (blind) and constrained inversions were carried out. For the constrained inversion, the starting and a priori model in 3D inversions included shallow structure from resistivity-depth maps obtained from the Resolve airborne EM survey, conducted by Fugro Airborne Surveys Corp., Mississauga, Canada. Report 78 pages, Append. A-D. 50 Figures, 8 Tables.
This resource is a metadata compilation of bibliographic references related to Alaskan geothermal research activity. This compilation includes 37 documents delivered to the US DOE Office of Scientific and Technical Information as OSTI scanned documents, as well as to the AASG Geothermal Data Project. Document topics include geochemistry, geothermal potential, energy alternatives, thermal studies, and faults and other structures for the state of Alaska. The Excel workbook contains 6 worksheets, including information about the template, notes related to revisions of the template, Resource provider information, the data, a field list (data mapping view) and vocabularies for use in populating the data worksheet (data valid terms). This resource was compiled by the Alaska Division of Geological and Geophysical Surveys and made available for distribution through the National Geothermal Data System.
This information represents a digital version of the polygon units shown on "Bedrock Geologic Map of Wisconsin," originally published in 1982 at a scale of 1:1,000,000. The bedrock geology shown is a lithostratigraphic interpretation of the consolidated (rock) units present at the land surface or, in most areas, the first consolidated (rock) unit encountered beneath variable thicknesses of unconsolidated glacial sediment. The data include not only the distribution of the various bedrock units, but also a general description of the lithologic character and nomenclatural identification. This dataset provides users with a digital representation of the distribution of the bedrock units in Wisconsin and should not be used for site-specific geologic assessment.
This resource is an ArcMap Package of Features in Alaska: Thermal Springs, Direct Use Sites, Geothermal Wells, Other wells, Bottom hole Temperatures, Aqueous Geochemistry, Free Gas, Isotopes, Earthquakes near Hot Springs, Volcanic Vents Holocene, Quaternary Faults, Pre Quaternary Faults, Volcanic Rocks, Geology, Late Tertiary and Quaternary Sedimentary Basins, cities, DOT Road System, major rivers, Depth to Permafrost, State_waters_line NS, Census areas boroughs, akneds, Cultural, Alaska Place Names POINT, Basemap. A total of 8505 data points are listed, not including the basemap and road layers, etc., listed at the end of the data types. This resource was provided by the Alaska Division of Geological and Geophysical Surveys and made available for distribution through the National Geothermal Data System.
This resource is a compilation of a specific suite of aqueous chemistry for Alaska thermal groundwater, tailored for use in the geothermometry model formulated by Powell and Cumming, 2010. Analytes reported can be directly input into their model, which displays ternary diagrams to interpret potential source and temperatures of thermal waters based on chemistry and other parameters. Citation: Powell, Tom and Cumming, William 2010. Spreadsheets for Geothermal Water and Gas Geochemistry. Thirty-Fifth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, February 1-3, 2010. SGP-TR-188 (http://repository.stategeothermaldata.org/repository/resource/9e15e1a59b768b330d029e86dc023a37/). The data are available in the following formats: web feature service, web map service, ESRI MapServer, and an Excel workbook for download. The workbook contains 4 worksheets, including information about the template with notes related to revisions of the template, resource provider information, the data and a field list (to assist data mapping). This resource was provided by the Alaska Division of Geological and Geophysical Surveys and made available for distribution through the National Geothermal Data System.
The Rotary Separator Turbine (RST) is a concept of Biphase Energy Systems that has been developed for geothermal applications by Biphae and the Electric Power Research Institute (EPRI). The RST can provide an efficient method for extracting energy from geopressured brines. In this application the RST would develop shaft power from the thermal and pressure energy of the brine and would recovery chemical energy as methane available for distribution. A comparative analysis of conceptual designs for an RST system and a two stage flash system indicates that ht RST system could deliver electricity at a cost about seven percent lower than a two stage flash system. Use of the Biphase Rotary Separator may result in more complete recovery of methane e than is possible with gravity gas liquid separators.
Petrologic data has been used to determine the stratigraphical changes, mineral zoning, thermal history and permeability in Berlin geothermal field. Petrographic and mineralogical analyses showed that the caprock at wells TR-17 and TR-18 is found at higher elevation (500 masl to sea level), composed of altered fine tuff and ignimbritic deposits, confirming the vertical displacement of the Berlin caldera.Past and present thermal regimes were identified using microthermometry of fluid inclusions in different crystals. Measurement at depths indicated a temperature reversal of 256 258C in wells TR-17 and TR-18, where temperature of homogenization (Th) obtained a maximum temperature of 346C.Geochemical data was plotted in variation diagrams to see the trend of the major oxides and relate to the hydrothermal alteration processes.This paper will focus on the five production wells (TR-17, TR-17A, TR-17B, TR-18 and TR-18A) at the southern part of the field.
Low-enthalpy geothermal resources have not been utilized to their potential in the past. However, since vast tracts of low-enthalpy geothermal resources exist as energy in the form of differential temperatures, the reserves are estimated to be enormous. As a result, there is growing interest in using this untapped energy in order to reduce carbon dioxide emissions which are the main cause for global warming, one of todays most serious issues as addressed by the U.S. Department of Energy and Environmental Protection Agency documents.
A 1:62,500-scale, full-color Geologic Map of the Mount Rose 15-Minute Quadrangle in Washoe County, Nevada, with description of 29 units.To show a 1:62,500-scale, full-color Geologic Map of the Mount Rose 15-Minute Quadrangle in Washoe County, Nevada, with description of 29 units. The GIS work was in support of the U. S. Geological Survey COGEOMAP program. The Geodatabase specifies feature datasets and feature classes, together with feature attributes, subtypes and domains, suitable for the printed geologic map. In addition to basic geology (lithology, contacts and faults, etc.), the maps may include metamorphic overprints, cross-sections, and explanatory legend-graphics such as correlation charts, used to supplement columnar legends.
The International Geothermal Association (IGA) is a scientific, educational and cultural organization established in 1988. The objective of the association is to encourage research, development and utilization of geothermal resources worldwide through the compilation, publication and dissemination of scientific and technical data and information not only within geothermal specialists but also to general public. As one of the main activities, the IGA holds the World Geothermal Congress (WGC) every five years. The next congress, WGC2010, will be held in Bali, Indonesia in April 2010. The Western Pacific Regional Branch (WPRB) was established under the IGA in 2006 to foster closer collaboration in geothermal research and development in south-eastern Asia and western Pacific regions and to focus on dissemination of information on areas of geothermal science and technology which are special interest of the Region. Geothermal energy is one of the most promising renewable energy resources that can and must take a major role in the energy utilization worldwide for providing benefits to human life and for solving global warming problem. It is particularly true for Asian countries where economical growth is very rapid. Thus, the IGA is requested to take the lead, by a non-political manner, in promoting geothermal energy utilization worldwide.
Sarikaya geothermal field is located 80 km SE of Yozgat city center (in Sarikaya town center). The basement complex is formed of Paleozoic aged schist, quartzite and marbles in this field. Eocene aged marl, claystone and limestone and alternating clayey limestone, sandstone and marl Pliocene deposits lie unconformably on this basement. Quaternary aged travertine and alluvium lie at the top. There are major fault lines trending E-W and NE-SW.Temperatures of thermal and mineral waters obtained from springs and wells in the research area varies between 25-60.1oC, and electrical conductivity is 400-1300 s/cm. Thermal and mineral waters are characterized as calcium bicarbonate waters (Ca-HCO3).According to isotopic analysis, Sarikaya thermal waters have meteoric origin. Oxygen-18 (δ18O) values of thermal water vary between -10.2 to -11.4 and and #948;2H values from -79.6 to -80.6.Low tritium contents relative to recent precipitation shows that groundwater released from the springs have a long term (30-40 years) residence time underground.