To prepare for its third phase, the Hawaii Play Fairway project conducted groundwater sampling and analyses in ten locations in the Hawaiian islands, magnetotelluric (MT) and gravity surveys, as well as calculations of 3D subsurface stress due to the weight of the rock underlying the topography of the volcano. The subsurface stresses were used to evaluate the potential for fracture-induced permeability. Inversions of the MT and gravity data produce 3D models of resistivity and density, respectively, on Lanai, across Haleakala's SW rift (Maui), and surrounding Mauna Kea (Hawaii Island). The project developed and applied a new method for incorporating depth information about resistivity, density, and potential for fracture-induced permeability into the statistical method for computing resource probability in these three focus areas. The project then incorporated the new groundwater results with the new geophysical results and the calculations of potential for fracture-induced permeability to produce updated maps of resource probability and confidence. These results were used to identify target sites for exploratory drilling. Spreadsheet information: Each sheet contains data for a particular depth in kilometers. Positive depths are above sea level, and negative below. For more information, go to the Hawaii Groundwater and Geothermal Resources Center website linked in the resources.

In 2002 and 2003 a collaborative effort was undertaken between Lawrence Berkeley National Laboratory, Sandia National Laboratories, the USGS Menlo Park, the USGS Hawaiian Volcano Observatory, and Electromagnetic Instruments Inc. to study the Kilauea volcano in Hawaii using the magnetotelluric (MT) technique. The work was motivated by a desire to improve understanding of the magma reservoirs and conduits within Kilauea and the East and Southwest Rift zones, which has implications for understanding Kilaueas plumbing system. An improved understanding of the rift zones has implications in understanding large-scale landslides that are generated in the Hilina Slump, which produce significant impacts on coastal communities. Up to eight stations operated simultaneously, with multiple remote reference sites, and data were processed using multi-station robust processing techniques. In total, data were acquired at 70 sites over the Southwest and East rift zones. Good to excellent quality data were obtained even in the harshest conditions, such as those encountered on the fresh lava flows of the East Rift Zone (ERZ), where electrical contact resistances are on the order of 100 kOhm. This data supports the continuing efforts to increase geothermal power on the island of Hawaii. Each of the 70 EDI files are the MT impedance tensors for 1 site. There is also a description of the processing of the data and a site map showing the locations of each site.

Using LiDAR to identify structural and volcanic evolution of a Miocene-Pleistocene age bimodal volcanic complex and implications for geothermal potential. The file includes an updated geologic map, methods, and preliminary results.

This submission contains a link to the EDX Collaborative Workspace where the MT data collected in support of the DOE GTO 4D EGS monitoring project is stored. Daily production reports-- Oregon State University (OSU) had 6 stations running continuously. --Dynamic survey map, KML file with MT locations on the west flank. Read off at location, created excel file for locations of each NBL. Zonge has two N-S lines of MT stations, 1-x and 2-x. Created excel file for locations of each 1-x and 2-x. --In stations, each station has day file with calibration of magnetometers, 6 channels. .Z3d are proprietary data files (refer to Zonge Int'l) --MT Section: has four channels that went into it, in edi format are given frequenices, coordinate system. Tensor-- four elements of this tensor at each frequency. The tensor is complex-valued-- it has a real part and an imaginary part at each frequency. In .zxr the impedance sensor relates N-S to E-W. "r" is imaginary. "ZXYVAR" is variance, error on each impedance tensor. Transmuted into apparent resistivity "ro". phase.

Zonge Geosciences, Inc. performed a magnetotelluric (MT) survey for the Glass Buttes Project at the request of Ormat Technologies Inc. during the period of 7 October 2010 to 8 November 2010. This report provides the deep electromagnetic data and methods that were used to assist Ormat Technologies in assessing potential geothermal resources in the area. Tensor magnetotelluric data were acquired at 30 stations in the eastern survey area and array MT data were acquired along one line, 6.8 kilometers in length in the western survey area. The survey area is located in Lake County, Oregon and lies within the Glass Butte and Hat Butte, Oregon topographic areas.

This submission includes composite risk segment models in raster format for permeability, heat of the earth, and MT, as well as the final PFA model of geothermal exploration risk in Southwestern Utah, USA. Additionally, this submission has data regarding hydrothermally altered areas, and opal sinter deposits in the study area. All of this information lends to the understanding and exploration for hidden geothermal systems in the area.

Multiple data sets converge on a geologic structural model for Glass Buttes, Oregon geothermal prospect, Patrick Walsh, Brigette Martini, Chet Lide, Darrick Boschmann, John DIlles, Andrew Meigs, 2010 Ormat Nevada, Zonge Geophysical, Oregon State University American Geophysical Union, Poster Session

Conceptual model for the Newberry Caldera geothermal area. Model is centered around caldera and evaluates multiple geophysical datasets to derive a conceptual subsurface model. Includes: Conductor layer based on transient electromagnetic data from Fitterman et al., 1988 (figure 10) Base of conductor layer based on MT conductor values found in Waibel et al., 2014 (DOE document, figure 38) Resistor layer based on magnetotellurics from Fitterman et al., 1988 (figure 13). Seismic intrusives layer representing a smoothed version of 5.5 km/s seismic velocity layer defined in Beachly et al., 2012 West flank seismic body representing a fractional change in seismic velocity of 0.1, defined in Beachly et al., 2012 and Heath et al., 2015 West flank gravity body "granite" that represents a gravity anomaly identified in Waibel et al., 2014 (DOE document, figure 35) Magma chamber defined seismically, found in Heath et al., 2015 Ring fracture fault intrusions Various faults and geologic layers

Research references to literature about the Newberry geothermal area, Oregon.

Magnetotelluric (MT) data for Medicine lake with 2km grid.

Raw magnetotelluric (MT) data covering the geothermal system at Raft River, Idaho. The data was acquired by Quantec Geoscience. This is a zipped file containing .edi raw MT data files.

Within this submission are multiple .tif images with accompanying metadata of magnetotelluric conductor occurrence, fault critical stress composite risk segment (CRS), permeability CRS, Quaternary mafic extrusions, Quaternary fault density, and Quaternary rhyolite maps. Each of these contributed to a final play fairway analysis (PFA) for the SE Great Basin study area.

Subsurface Science, Technology and Engineering Research, and Development (SubTER) Crosscut is a collaboration across the Department of Energy offices involved in research activities in energy production/extraction, subsurface storage, and environmental remediation. This submission contains the edi-format responses of 80 tensor MT soundings taken over the Mineral Mountains of SW Utah by contractor Quantec Geoscience Inc. as part of the SubTER project. It includes contractor png images of the soundings plus the responses computed with two different remote references. There is also a readme text file that contains more information about the dataset.

This report details all of the work done in Phase 2 of a geothermal exploration project in Tularosa Basin, New Mexico. Data acquired as part of Phase 2 includes field geology (geological reconnaissance and mapping), gravity surveys, shallow temperature surveys, well water sampling and geothermometry, temperature logging, and magnetotelluric (MT) surveys. The new data is incorporated into new PFA models and Phase 2 plays were subsequently developed, ranked, and prioritized. This report also presents an overview of recommendations and costs for the next phase.

This is a zipped file containing raw magnetotelluric (MT) data collected as part of the Phase 2 Tularosa Basin geothermal play fairway analysis project in New Mexico. The data for each MT station are in standard .edi text files which are accompanied by graphic files illustrating details. These data cover part of McGregor Range, Fort Bliss, New Mexico. The MT survey was done by Quantec Geoscience.

There are two zipped folders in this submission. One contains a shapefile with the position of MT stations around the Milford FORGE Site, while the other has the raw MT data.

The Coso Magnetotelluric (MT) dataset of which the West Flank FORGE MT data is a subset, was collected by Schlumberger / WesternGeco and initially processed by the WesternGeco GeoSolutions Integrated EM Center of Excellence in Milan, Italy. The 2011 data was based on 99 soundings that were centered on the West Flank geothermal prospect. The new soundings along with previous data from 2003 and 2006 were incorporated into a 3D inversion. Full impedance tensor data were inverted in the 1-3000 Hz range. The modelling report notes several noise sources, specifically the DC powerline that is 20,000 feet west of the survey area, and may have affected data in the 0.02 to 10 Hz range. Model cell dimensions of 450 x 450 x 65 feet were used to avoid computational instability in the 3D model. The fit between calculated and observed MT values for the final model run had an RMS value of 1.807. The included figure from the WesternGeco report shows the sounding locations from the 2011, 2006 and 2003 surveys.