Data generated from the Alum Innovative Exploration Project, one of several promising geothermal properties located in the middle to upper Miocene (~11-5 Ma, or million years BP) Silver Peak-Lone Mountain metamorphic core complex (SPCC) of the Walker Lane structural belt in Esmeralda County, west-central Nevada. The geothermal system at Alum is wholly concealed; its upper reaches discovered in the late 1970s during a regional thermal-gradient drilling campaign. The prospect boasts several shallow thermal-gradient (TG) boreholes with TG >75oC/km (and as high as 440oC/km) over 200-m intervals in the depth range 0-600 m. Possibly boiling water encountered at 239 m depth in one of these boreholes returned chemical- geothermometry values in the range 150-230oC. GeothermEx (2008) has estimated the electrical- generation capacity of the current Alum leasehold at 33 megawatts for 20 years; and the corresponding value for the broader thermal anomaly extending beyond the property at 73 megawatts for the same duration.

From its inception in May of 1982, the U.S. Department of Energy Deep Source Gas project has investigated the possibility that significant quantities of hydrocarbons, natural gas in particular, may be generated during and following convergent plate tectonic sediment subduction. Sediment subduction is believed to have been an important process during the past 180 million years along the western margin of North America. Several years of regional geological, and limited geochemical investigations led to the theory that some portion of these subducted sedimentary units may have been left in place in the upper crust of the continental plate margin of this region. The potential for these, in part, deeply buried rocks to generate petroleum, and to contain important quantities of natural gas at drillable depths, was at the heart of this effort. Along with Gas Hydrates, the Deep Source Gas program of the Morgantown Energy Technology Center was structured under the heading of Speculative Gas Resources being investigated in frontier areas of the U.S. Following an initial reconnaissance geophysical effort in the Pacific Northwest and Alaska, which included the use of magnetotellurics (MT), gravity, and magnetics information, an important high conductivity MT anomaly was identified in southwest Washington. This feature later identified as the Southern Washington Cascades Conductor, or SWCC, was of sufficient areal extent to warrant further study for its potential as a deeply buried subduction system with significant sedimentary section. Approximately 238 kilometers of 1024 channel deep seismic reflection data were collected in 1988, 1989 and 1990 across the SWCC anomaly in six seismic lines. At this time approximately half of the data has been analyzed and released in the following publications: U.S. Geological Survey, Open File Report 91-119 entitled "Are Hydrocarbon Source Rocks Hidden Beneath the Volcanic Flows in the Southern Washington Cascades?" by W. D. Stanley, W. J. Gwilliam, G. V. Latham, and J. K. Westhusing, 41 p., 12 figs.; American Association of Petroleum Geologists 1990 Annual Convention, San Francisco, abstract entitled "Deep Seismic Surveys of a Dormant Subduction Zone in the Pacific Northwest United States", by W. J. Gwilliam, W. D. Stanley, G. V. Latham and J. K. Westhusing; U.S. Department of Energy, Morgantown Energy Technology Center Proceedings of the 1990 Natural Gas Research and Development Contractors Review Meeting, entitled "Exploration For Deep Source Hydrocarbons in Subduction Terrain of the Pacific Northwest" by Keith Westhusing and Steve Krehbiel, 22 p. 18 figs., available through the National Technical Information Service (NTIS) Publication No.DE9100203035; U.S. Department of Energy Morgantown Energy Technology Center Proceedings of the 1992 Natural Gas Research and Development Contractors Review Meeting, abstract, entitled "Deep Source Gas Seismic Survey - Washington State" by Steven C. Krehbiel, Mary Rafalowski-Guide and Mark H. Thomas, available through NTIS Publication No. DE92001278; American Association of Petroleum Geologists Bulletin vol. 76, no. 10, October 1992 paper entitled "The Southern Washington Cascades Conductor-A Previously Unrecognized Thick Sedimentary Sequence?" by W. D. Stanley, W. J. Gwilliam, Gary Latham, and Keith Westhusing, 16 p., 11 figs.

From its inception in May of 1982, the U.S. Department of Energy Deep Source Gas project has investigated the possibility that significant quantities of hydrocarbons, natural gas in particular, may be generated during and following convergent plate tectonic sediment subduction. Sediment subduction is believed to have been an important process during the past 180 million years along the western margin of North America. Several years of regional geological, and limited geochemical investigations led to the theory that some portion of these subducted sedimentary units may have been left in place in the upper crust of the continental plate margin of this region. The potential for these, in part, deeply buried rocks to generate petroleum, and to contain important quantities of natural gas at drillable depths, was at the heart of this effort. Along with Gas Hydrates, the Deep Source Gas program of the Morgantown Energy Technology Center was structured under the heading of Speculative Gas Resources being investigated in frontier areas of the U.S. Following an initial reconnaissance geophysical effort in the Pacific Northwest and Alaska, which included the use of magnetotellurics (MT), gravity, and magnetics information, an important high conductivity MT anomaly was identified in southwest Washington. This feature later identified as the Southern Washington Cascades Conductor, or SWCC, was of sufficient areal extent to warrant further study for its potential as a deeply buried subduction system with significant sedimentary section. Approximately 238 kilometers of 1024 channel deep seismic reflection data were collected in 1988, 1989 and 1990 across the SWCC anomaly in six seismic lines. At this time approximately half of the data has been analyzed and released in the following publications: U.S. Geological Survey, Open File Report 91-119 entitled "Are Hydrocarbon Source Rocks Hidden Beneath the Volcanic Flows in the Southern Washington Cascades?" by W. D. Stanley, W. J. Gwilliam, G. V. Latham, and J. K. Westhusing, 41 p., 12 figs.; American Association of Petroleum Geologists 1990 Annual Convention, San Francisco, abstract entitled "Deep Seismic Surveys of a Dormant Subduction Zone in the Pacific Northwest United States", by W. J. Gwilliam, W. D. Stanley, G. V. Latham and J. K. Westhusing; U.S. Department of Energy, Morgantown Energy Technology Center Proceedings of the 1990 Natural Gas Research and Development Contractors Review Meeting, entitled "Exploration For Deep Source Hydrocarbons in Subduction Terrain of the Pacific Northwest" by Keith Westhusing and Steve Krehbiel, 22 p. 18 figs., available through the National Technical Information Service (NTIS) Publication No.DE9100203035; U.S. Department of Energy Morgantown Energy Technology Center Proceedings of the 1992 Natural Gas Research and Development Contractors Review Meeting, abstract, entitled "Deep Source Gas Seismic Survey - Washington State" by Steven C. Krehbiel, Mary Rafalowski-Guide and Mark H. Thomas, available through NTIS Publication No. DE92001278; American Association of Petroleum Geologists Bulletin vol. 76, no. 10, October 1992 paper entitled "The Southern Washington Cascades Conductor-A Previously Unrecognized Thick Sedimentary Sequence?" by W. D. Stanley, W. J. Gwilliam, Gary Latham, and Keith Westhusing, 16 p., 11 figs.

Electrical resistivity model of Newberry Volcano in the central Oregon Cascades. Model created by inverting magnetotelluric (MT) data with the ModEM inversion software. All support files used in the inversion are present. Model is centered at 43.7261, -121.3156.

ArcGIS Map Package with MT Station Locations, 2D Seismic Lines, Well data, Known Regional Hydrothermal Systems, Regional Historic Earthquake Seismicity, Regional Temperature Gradient Data, Regional Heat Flow Data, Regional Radiogenic Heat Production, Local Geology, Land Status, Cultural Data, 2m Temperature Probe Data, and Gravity Data. Also a detailed down-hole lithology notes are provided.

This is the regional dataset compilation for the INnovative Geothermal Exploration through Novel Investigations Of Undiscovered Systems (INGENIOUS) project. The primary goal of this project is to accelerate discoveries of new, commercially viable hidden geothermal systems while reducing the exploration and development risks for all geothermal resources. These datasets will be used in INGENIOUS as input features for predicting geothermal favorability throughout the Great Basin study area. Datasets consist of shapefiles, geotiffs, tabular spreadsheets, and metadata that describe: 2-meter temperature probe surveys, quaternary faults and volcanic features, geodetic shear and dilation models, heat flow, magnetotellurics (conductance), magnetics, gravity, paleogeothermal features (such as sinter and tufa deposits), seismicity, spring and well temperatures, spring and well aqueous geochemistry analyses, thermal conductivity, and fault slip and dilation tendency. For additional project information, see the INGENIOUS project site linked in the submission. Terms of use: These datasets are provided "as is", and the contributors assume no responsibility for any errors or omissions. The user assumes the entire risk associated with their use of these data and bears all responsibility in determining whether these data are fit for their intended use. These datasets may be redistributed with attribution (see citation information below). Please refer to the license information on this page for full licensing terms and conditions.

This data set includes the magnetotelluric (MT) data collected from October 21 to November 9, 2016 over the San Emidio geothermal field in Nevada by Quantec Geoscience USA Inc. on behalf of US Geothermal Inc. as part of a project entitled "A Novel Approach to Map Permeability Using Passive Seismic Emission Tomography". This data set includes descriptions of the instrumentation, data acquisition and processing procedures, as well as the final processed data and digital archive formats. A total of 81 MT locations were surveyed (52 profile sites, and 29 MT sites). Data were processed and inspected for quality assurance on site, and reviewed daily by the geophysicist in charge of the project.

This project focused on defining geothermal play fairways and development of a detailed geothermal potential map of a large transect across the Great Basin region (96,000 km2), with the primary objective of facilitating discovery of commercial-grade, blind geothermal fields (i.e. systems with no surface hot springs or fumaroles) and thereby accelerating geothermal development in this promising region. Data included in this submission consists of: structural settings (target areas, recency of faulting, slip and dilation potential, slip rates, quality), regional-scale strain rates, earthquake density and magnitude, gravity data, temperature at 3 km depth, permeability models, favorability models, degree of exploration and exploration opportunities, data from springs and wells, transmission lines and wilderness areas, and published maps and theses for the Nevada Play Fairway area.

The site characterization data used to develop the conceptual geologic model for the Snake River Plain site in Idaho, as part of phase 1 of the Frontier Observatory for Research in Geothermal Energy (FORGE) initiative. This collection includes data on seismic events, groundwater, geomechanical models, gravity surveys, magnetics, resistivity, magnetotellurics (MT), rock physics, stress, the geologic setting, and supporting documentation, including several papers. Also included are 3D models (Petrel and Jewelsuite) of the proposed site. Data for wells INEL-1, WO-2, and USGS-142 have been included as links to separate data collections. These data have been assembled by the Snake River Geothermal Consortium (SRGC), a team of collaborators that includes members from national laboratories, universities, industry, and federal agencies, lead by the Idaho National Laboratory (INL). Other contributors include the National Renewable Energy Laboratory (NREL), Lawrence Livermore National Laboratory (LLNL), the Center for Advanced Energy Studies (CEAS), the University of Idaho, Idaho State University, Boise State University, University of Wyoming, University of Oklahoma, Energy and Geoscience Institute-University of Utah, US Geothermal, Baker Hughes Campbell Scientific Inc., Chena Power, US Geological Survey (USGS), Idaho Department of Water Resources, Idaho Geological Survey, and Mink GeoHydro.

MT is measured in the field by using induction coils to measure the time-varying magnetic source for frequencies between 1000-0.001~Hz, and electric dipoles to measure the Earth's electrical response. Because the magnetic source field is polarized, orthogonal directions of the fields need to be measured to get a complete description of the fields. In all measurements collected for this project, induction coils and electric dipoles were aligned with geomagnetic north and east. MT data were collected at 22 stations with a ZEN 32-bit data logger developed by Zonge International, magnetic fields were measured with ANT-4 induction coils, and electric fields where measured with Ag-AgCl reference electrodes from Borin on 50~m dipoles. The data was collected on a repeating schedule of 10~min at 4096~samples/s and 7 hours and 50 minutes at 256 samples/s over a 20-24 hour period. To convert time series data into the frequency domain and get estimations of the impedance tensor, the processing code BIRRP was used (Chave & Thompson 2004). Simultaneous measurements were used as remote references to reduce noise and bias in the data. Chave, A. D., & Thomson, D. J. 2004. Bounded inuence magnetotelluric response function estimation. Geophys. J. Int., 157, 988-1006.

The article and accompanying spreadsheet represent the information posteriors derived from synthetic data of magnetotellurics (MT). These were used to calculate value of information of MT for geothermal exploration. Information posteriors describe how well MT was able to locate the "throat" of clay caps, which are indicative of hidden geothermal resources. This data is fully explained in the peer-reviewed publication: The value of spatial information for determining well placement: a geothermal example, written by Trainor-Guitton, W., Hoversten, G. M., Ramirez, A., Roberts, J., Juliusson, E., Key, K., and Mellors, R. and published on August 25th, 2014.

New high-quality tensor MT data at 122 sites, including the vertical magnetic field and utilizing ultra-remote referencing, have been acquired over the Utah FORGE project area. The results will be used to delineate the densities of faults and fractures in crystalline basement rocks, to define the heat sources, and to derive baseline 3D resistivity structure for later MT monitoring of temporal changes in resistivity structure following well stimulation in the EGS reservoir. There are three files here related to Utah FORGE magnetotelluric (MT) data acquisition and processing. The FORGE MT EDIs zip file contains the observed MT responses in industry-standard EDI format. For each site, there is an EDI response file that utilized a local independent reference for noise cancellation, and a file that utilized a distant reference cancelling noise associated with the DC transmission line of the Delta IPP passing down the west side of Milford Valley. These two site files could be merged as appropriate. The FORGE Model Cell Center file contains the model volume of the 3D Forge MT inversion for characterizing the resistivity structure in the project area. It was derived using finite element inversion methodology described in Wannamaker et al, in the attached FORGE Phase3 Geophysics paper, from the MT observation EDI files. It is ASCII format (.dat) and entries are defined at top of the file in a simple x-y-z-Rho listing in UTM coordinates. The element layers drape the topography so the Rho value layers are not purely horizontal slices. This greatly simplifies the listing.

This data includes the locations of the MT data collected in and around the Coso Geothermal field that covered the West Flank area. These are the data that the 3D MT models were created from that were discussed in Phase 1 of the West Flank FORGE project. The projected coordinate system is NAD 1927 State Plane California IV FIPS 0404 and the Projection is Lambert Conformal Conic. Units are in feet.

This is the 3D version of the MT data for the West Flank Coso FORGE area. The Coso geothermal field has had three Magnetotelluric (MT) datasets collected including surveys in 2003, 2006, and 2011. The final collection, in 2011, expanded the survey to the west and covers the West Flank of FORGE area.This most recent data set was collected by Schlumberger/WesternGeco and inverted by the WesternGeco GeoSolutions Integrated EM Center of Excellence in Milan, Italy; the 2003 and 2006 data were integrated for these inversions in the present study.