William Schermerhorn (Former Employee)
Science and Products
Gravity and physical property data of the 2019 Ridgecrest earthquakes region, Mojave Desert, California Gravity and physical property data of the 2019 Ridgecrest earthquakes region, Mojave Desert, California
This data release presents point data associated with studies to understand the crustal structure of the 2019 Ridgecrest earthquakes epicentral region and the interaction of the northeast-to-east-striking Garlock fault with the northwest-striking faults of the Eastern California Shear Zone and Walker Lane. Data include principal fact information for new gravity measurements collected by...
Regional geophysical maps of the Great Basin, USA Regional geophysical maps of the Great Basin, USA
Regional geophysical maps of the Great Basin, USA were generated from new and existing sources to support ongoing efforts to characterize geothermal resource potential in the western US. These include: (1) a provisional regional gravity grid that was produced from data compiled from multiple sources: data collected by the USGS and Utah Geological Survey under various projects, industry...
Geophysical characterization of geothermal resources on the Umatilla Indian Reservation in northeast Oregon Geophysical characterization of geothermal resources on the Umatilla Indian Reservation in northeast Oregon
During the summers of 2017 and 2020, our team collected gravity, ground magnetic (ATV and hiked traverses), paleomagnetic and rock property (density and susceptibility) data on the Umatilla Indian Reservation (UIR) in northeast Oregon to aid in characterizing subsurface stratigraphy using 2D and 3D modeling methods. This data was integrated with conductance surfaces from a 3D...
High Resolution Gravity and Ground Magnetic Surveys of southern Gabbs Valley, NV High Resolution Gravity and Ground Magnetic Surveys of southern Gabbs Valley, NV
From late 2017 to early 2018, our team collected gravity, ground magnetic (ATV and hiked traverses) and rock property (density and susceptibility) data in southern Gabbs Valley in west-central Nevada.
Clayton Valley Geophysical Data Release Clayton Valley Geophysical Data Release
This data release contains data from various geophysical studies performed around the larger Clayton Valley, NV area. These include reprocessed existing gravity data compiled from multiple sources, as well as newly collected gravity and ground magnetic data, and bulk densities and magnetic susceptibilities from outcrop, hand samples, and drill cores.
Snake River Plain Play Fairway Analysis Phase 2 Favorability Model (DE EE0006733) Snake River Plain Play Fairway Analysis Phase 2 Favorability Model (DE EE0006733)
This data release contains all digital geographic data used and produced by the Snake River Plain Play Fairway Analysis (DE EE0006733) for Phase 2 (ArcGIS shapefiles and raster files) as well as the model processing script, tables, and documentation used to generate data outputs. Phase 2 examines two subset areas of the Phase 1 study area, Mountain Home and Camas Prairie. Brief...
Snake River Plain Play Fairway Analysis Phase 1 Favorability Model (DE EE0006733) Snake River Plain Play Fairway Analysis Phase 1 Favorability Model (DE EE0006733)
This data release contains all digital geographic data used and produced by the Snake River Plain Play Fairway Analysis (DE EE0006733) for Phase 1 (ArcGIS shapefiles and raster files) as well as the model processing script, tables, and documentation used to generate data outputs. Brief descriptions of data layers are in the metadata of GIS files, greater detail is available in the Larger...
Three-dimensional geologic map the southeastern Gabbs Valley geothermal area, Nevada Three-dimensional geologic map the southeastern Gabbs Valley geothermal area, Nevada
This three-dimensional (3D) geologic map displays the subsurface geology in the upper ~4 kilometers of the Earth’s crust in the southeastern Gabbs Valley geothermal area of west-central Nevada. The 3D map was constructed by integrating the results from detailed geologic mapping, 3D gravity inversion modeling, and potential-field-geophysical studies. This effort was undertaken as part of...
Preliminary depth to basement modeling at Salton Sea, California Preliminary depth to basement modeling at Salton Sea, California
The San Andreas Fault – Imperial Fault (SAF-IF) transtensional step-over zone along the southern margin of the Salton Sea hosts substantial geothermal production and lithium brine resources. Recent volcanism at the Salton Buttes and active seismicity along the SAFIF fault system highlight active tectonic and magmatic processes that pose natural hazards and may impact energy and mineral...
Authors
Jacob Anderson, Jonathan Glen, William Schermerhorn, Tait Earney, Benjamin Lyter Morbeck
Exploration for blind geothermal systems in the eastern Great Basin of Utah: An update on the “Lund North” INGENIOUS detailed study site Exploration for blind geothermal systems in the eastern Great Basin of Utah: An update on the “Lund North” INGENIOUS detailed study site
Existing geothermal production in Utah is commonly collocated with surficial expressions of geothermal heat including active hot springs and hot spring deposits. However, geothermal potential across the Great Basin region is thought to be much higher for hidden or blind geothermal systems. Accordingly, exploration techniques that can locate geothermal resources that lack surface thermal...
Authors
Christian Hardwick, Eugene Szymanski, Nicole Hart-Wagoner, S. Ashton, N. Christensen, Tait Earney, James Faulds, Jonathan Glen, A.I. Hiscock, Stefan Kirby, T. Knudsen, S. Kobe, Cary Lindsey, Benjamin Lyter Morbeck, Jared R. Peacock, Grant Rea-Downing, William Schermerhorn, K. Smith
Geophysical modeling of a possible blind geothermal system near Battle Mountain, NV Geophysical modeling of a possible blind geothermal system near Battle Mountain, NV
The northeastern portion of the Reese River basin in north-central Nevada is the focus of detailed geophysical and geological studies as part of the INGENIOUS project, which aims to identify new, commercially viable hidden geothermal systems in the Great Basin region of the western U.S. This location, herein referred to as Argenta Rise, occupies a broad (~15km wide) left-step between...
Authors
Tait Earney, Jonathan Glen, Jared R. Peacock, James Faulds, William Schermerhorn, Grant Rea-Downing, Jacob Anderson, Cary Lindsey, Maria Richards
A geophysical characterization of structure and geology of the Northern Granite Springs Valley Geothermal System, Northwestern Nevada A geophysical characterization of structure and geology of the Northern Granite Springs Valley Geothermal System, Northwestern Nevada
The northern Granite Springs Valley in northwestern Nevada is the focus of recent studies for its potential for hosting undiscovered geothermal resources. Although the area lacks definitive surface manifestations of an active hydrothermal system, previous studies identify this region as having potential for hosting a blind geothermal resource, based on elevated subsurface temperatures...
Authors
Jonathan Glen, Jared R. Peacock, Tait Earney, William Schermerhorn, Drew Siler, James Faulds, Jacob DeAngelo
UAS-based tools for mapping and monitoring hydrothermal systems: An example from Mammoth Lakes, California UAS-based tools for mapping and monitoring hydrothermal systems: An example from Mammoth Lakes, California
Unoccupied Aerial Systems (UAS) can accommodate a variety of tools for mapping and monitoring hydrothermal systems (e.g., magnetic, gas, photogrammetry, and thermal infrared [TIR]). These platforms offer increased speed, coverage area, and uniformity compared to ground-based measurements, as well as lower flight height – and therefore higher resolution – than occupied aircraft. We...
Authors
Laurie Zielinski, Jonathan Glen, Tait Earney, Grant H. Rea-Downing, R. Vaughan, Peter Kelly, Gordon Keller, Branden Dean, William Schermerhorn
Geophysical characterization of the Northwest Geysers geothermal field, California Geophysical characterization of the Northwest Geysers geothermal field, California
The Clear Lake Volcanic Field in northern California is the youngest and northern-most part of a long-lived volcanic system that has produced recent (~10 ka) eruptions. Adjacent to the Clear Lake Volcanic Field is the worlds largest energy producing geothermal field, The Geysers. The hottest part of The Geysers geothermal field is in the northwest where temperatures reach ~400 C at 3 km...
Authors
Jared R. Peacock, Tait Earney, Margret Mangan, William Schermerhorn, Jonathan Glen, Mark Walters, Craig Hartline
Play fairway analysis in geothermal exploration: The Snake River plain volcanic province Play fairway analysis in geothermal exploration: The Snake River plain volcanic province
The Snake River volcanic province (SRP) has long been considered a target for geothermal development. It overlies a thermal anomaly that extends deep into the mantle and represents one of the highest heat flow provinces in North America, but systematic exploration been hindered by lack of a conceptual model. Play Fairway Analysis (PFA) is a methodology adapted from the petroleum industry...
Authors
John W. Shervais, Jonathan Glen, Drew Siler, Lee Liberty, Dennis Nielson, Sabodh Garg, Patrick Dobson, Erika Gasperikova, Eric Sonnenthal, Dennis Newell, James Evans, Jacob DeAngelo, Jared R. Peacock, Tait Earney, William Schermerhorn, Ghanashyam Neupane
Geophysical Characterization of the heat source in the Northwest Geysers, California Geophysical Characterization of the heat source in the Northwest Geysers, California
The Geysers, in northern California, is the largest energy producing geothermal field in the world. Looking to expand capacity, the operator Calpine Corporation developed an anomalously hot (~400 °C at 2.5 km depth) part of the field in the northwest Geysers, including testing of an enhanced geothermal systems (EGS). Though the area is anomalously hot, geophysical methods have failed to...
Authors
Jared R. Peacock, Margaret Mangan, Mark Walters, Craig Hartline, Jonathan Glen, Tait Earney, William Schermerhorn
Discovery of a blind geothermal system in Southern Gabbs Valley, western Nevada, through application of the play fairway analysis at multiple scales Discovery of a blind geothermal system in Southern Gabbs Valley, western Nevada, through application of the play fairway analysis at multiple scales
The Great Basin region is capable of generating much greater amounts of geothermal energy than currently produced. Most geothermal resources in this region are blind, and thus favorable characteristics for geothermal activity must be synthesized and methodologies developed to discover new commercial-grade systems. The geothermal play fairway concept involves integration of multiple...
Authors
James Faulds, Jason Craig, Nicholas Hinz, Mark Coolbaugh, Jonathan Glen, Tait Earney, William Schermerhorn, Jared R. Peacock, Stephen Deoreo, Drew Siler
A geophysical characterization of the structural framework of the Camas Prairie Geothermal System, southcentral Idaho A geophysical characterization of the structural framework of the Camas Prairie Geothermal System, southcentral Idaho
Play Fairway Analysis methods, utilizing existing geologic, thermal, geochemical, and geophysical data were employed in an initial assessment of geothermal resources in the Snake River Plain. These efforts identified the Camas Prairie in southcentral Idaho as a region with elevated resource potential. Subsequent efforts included structural and geophysical data collection to identify the...
Authors
Jonathan Glen, Lee Liberty, Jared R. Peacock, Erika Gasperikova, Tait Earney, William Schermerhorn, Drew Siler, John Shervais, Patrick Dobson
Science and Products
Gravity and physical property data of the 2019 Ridgecrest earthquakes region, Mojave Desert, California Gravity and physical property data of the 2019 Ridgecrest earthquakes region, Mojave Desert, California
This data release presents point data associated with studies to understand the crustal structure of the 2019 Ridgecrest earthquakes epicentral region and the interaction of the northeast-to-east-striking Garlock fault with the northwest-striking faults of the Eastern California Shear Zone and Walker Lane. Data include principal fact information for new gravity measurements collected by...
Regional geophysical maps of the Great Basin, USA Regional geophysical maps of the Great Basin, USA
Regional geophysical maps of the Great Basin, USA were generated from new and existing sources to support ongoing efforts to characterize geothermal resource potential in the western US. These include: (1) a provisional regional gravity grid that was produced from data compiled from multiple sources: data collected by the USGS and Utah Geological Survey under various projects, industry...
Geophysical characterization of geothermal resources on the Umatilla Indian Reservation in northeast Oregon Geophysical characterization of geothermal resources on the Umatilla Indian Reservation in northeast Oregon
During the summers of 2017 and 2020, our team collected gravity, ground magnetic (ATV and hiked traverses), paleomagnetic and rock property (density and susceptibility) data on the Umatilla Indian Reservation (UIR) in northeast Oregon to aid in characterizing subsurface stratigraphy using 2D and 3D modeling methods. This data was integrated with conductance surfaces from a 3D...
High Resolution Gravity and Ground Magnetic Surveys of southern Gabbs Valley, NV High Resolution Gravity and Ground Magnetic Surveys of southern Gabbs Valley, NV
From late 2017 to early 2018, our team collected gravity, ground magnetic (ATV and hiked traverses) and rock property (density and susceptibility) data in southern Gabbs Valley in west-central Nevada.
Clayton Valley Geophysical Data Release Clayton Valley Geophysical Data Release
This data release contains data from various geophysical studies performed around the larger Clayton Valley, NV area. These include reprocessed existing gravity data compiled from multiple sources, as well as newly collected gravity and ground magnetic data, and bulk densities and magnetic susceptibilities from outcrop, hand samples, and drill cores.
Snake River Plain Play Fairway Analysis Phase 2 Favorability Model (DE EE0006733) Snake River Plain Play Fairway Analysis Phase 2 Favorability Model (DE EE0006733)
This data release contains all digital geographic data used and produced by the Snake River Plain Play Fairway Analysis (DE EE0006733) for Phase 2 (ArcGIS shapefiles and raster files) as well as the model processing script, tables, and documentation used to generate data outputs. Phase 2 examines two subset areas of the Phase 1 study area, Mountain Home and Camas Prairie. Brief...
Snake River Plain Play Fairway Analysis Phase 1 Favorability Model (DE EE0006733) Snake River Plain Play Fairway Analysis Phase 1 Favorability Model (DE EE0006733)
This data release contains all digital geographic data used and produced by the Snake River Plain Play Fairway Analysis (DE EE0006733) for Phase 1 (ArcGIS shapefiles and raster files) as well as the model processing script, tables, and documentation used to generate data outputs. Brief descriptions of data layers are in the metadata of GIS files, greater detail is available in the Larger...
Three-dimensional geologic map the southeastern Gabbs Valley geothermal area, Nevada Three-dimensional geologic map the southeastern Gabbs Valley geothermal area, Nevada
This three-dimensional (3D) geologic map displays the subsurface geology in the upper ~4 kilometers of the Earth’s crust in the southeastern Gabbs Valley geothermal area of west-central Nevada. The 3D map was constructed by integrating the results from detailed geologic mapping, 3D gravity inversion modeling, and potential-field-geophysical studies. This effort was undertaken as part of...
Preliminary depth to basement modeling at Salton Sea, California Preliminary depth to basement modeling at Salton Sea, California
The San Andreas Fault – Imperial Fault (SAF-IF) transtensional step-over zone along the southern margin of the Salton Sea hosts substantial geothermal production and lithium brine resources. Recent volcanism at the Salton Buttes and active seismicity along the SAFIF fault system highlight active tectonic and magmatic processes that pose natural hazards and may impact energy and mineral...
Authors
Jacob Anderson, Jonathan Glen, William Schermerhorn, Tait Earney, Benjamin Lyter Morbeck
Exploration for blind geothermal systems in the eastern Great Basin of Utah: An update on the “Lund North” INGENIOUS detailed study site Exploration for blind geothermal systems in the eastern Great Basin of Utah: An update on the “Lund North” INGENIOUS detailed study site
Existing geothermal production in Utah is commonly collocated with surficial expressions of geothermal heat including active hot springs and hot spring deposits. However, geothermal potential across the Great Basin region is thought to be much higher for hidden or blind geothermal systems. Accordingly, exploration techniques that can locate geothermal resources that lack surface thermal...
Authors
Christian Hardwick, Eugene Szymanski, Nicole Hart-Wagoner, S. Ashton, N. Christensen, Tait Earney, James Faulds, Jonathan Glen, A.I. Hiscock, Stefan Kirby, T. Knudsen, S. Kobe, Cary Lindsey, Benjamin Lyter Morbeck, Jared R. Peacock, Grant Rea-Downing, William Schermerhorn, K. Smith
Geophysical modeling of a possible blind geothermal system near Battle Mountain, NV Geophysical modeling of a possible blind geothermal system near Battle Mountain, NV
The northeastern portion of the Reese River basin in north-central Nevada is the focus of detailed geophysical and geological studies as part of the INGENIOUS project, which aims to identify new, commercially viable hidden geothermal systems in the Great Basin region of the western U.S. This location, herein referred to as Argenta Rise, occupies a broad (~15km wide) left-step between...
Authors
Tait Earney, Jonathan Glen, Jared R. Peacock, James Faulds, William Schermerhorn, Grant Rea-Downing, Jacob Anderson, Cary Lindsey, Maria Richards
A geophysical characterization of structure and geology of the Northern Granite Springs Valley Geothermal System, Northwestern Nevada A geophysical characterization of structure and geology of the Northern Granite Springs Valley Geothermal System, Northwestern Nevada
The northern Granite Springs Valley in northwestern Nevada is the focus of recent studies for its potential for hosting undiscovered geothermal resources. Although the area lacks definitive surface manifestations of an active hydrothermal system, previous studies identify this region as having potential for hosting a blind geothermal resource, based on elevated subsurface temperatures...
Authors
Jonathan Glen, Jared R. Peacock, Tait Earney, William Schermerhorn, Drew Siler, James Faulds, Jacob DeAngelo
UAS-based tools for mapping and monitoring hydrothermal systems: An example from Mammoth Lakes, California UAS-based tools for mapping and monitoring hydrothermal systems: An example from Mammoth Lakes, California
Unoccupied Aerial Systems (UAS) can accommodate a variety of tools for mapping and monitoring hydrothermal systems (e.g., magnetic, gas, photogrammetry, and thermal infrared [TIR]). These platforms offer increased speed, coverage area, and uniformity compared to ground-based measurements, as well as lower flight height – and therefore higher resolution – than occupied aircraft. We...
Authors
Laurie Zielinski, Jonathan Glen, Tait Earney, Grant H. Rea-Downing, R. Vaughan, Peter Kelly, Gordon Keller, Branden Dean, William Schermerhorn
Geophysical characterization of the Northwest Geysers geothermal field, California Geophysical characterization of the Northwest Geysers geothermal field, California
The Clear Lake Volcanic Field in northern California is the youngest and northern-most part of a long-lived volcanic system that has produced recent (~10 ka) eruptions. Adjacent to the Clear Lake Volcanic Field is the worlds largest energy producing geothermal field, The Geysers. The hottest part of The Geysers geothermal field is in the northwest where temperatures reach ~400 C at 3 km...
Authors
Jared R. Peacock, Tait Earney, Margret Mangan, William Schermerhorn, Jonathan Glen, Mark Walters, Craig Hartline
Play fairway analysis in geothermal exploration: The Snake River plain volcanic province Play fairway analysis in geothermal exploration: The Snake River plain volcanic province
The Snake River volcanic province (SRP) has long been considered a target for geothermal development. It overlies a thermal anomaly that extends deep into the mantle and represents one of the highest heat flow provinces in North America, but systematic exploration been hindered by lack of a conceptual model. Play Fairway Analysis (PFA) is a methodology adapted from the petroleum industry...
Authors
John W. Shervais, Jonathan Glen, Drew Siler, Lee Liberty, Dennis Nielson, Sabodh Garg, Patrick Dobson, Erika Gasperikova, Eric Sonnenthal, Dennis Newell, James Evans, Jacob DeAngelo, Jared R. Peacock, Tait Earney, William Schermerhorn, Ghanashyam Neupane
Geophysical Characterization of the heat source in the Northwest Geysers, California Geophysical Characterization of the heat source in the Northwest Geysers, California
The Geysers, in northern California, is the largest energy producing geothermal field in the world. Looking to expand capacity, the operator Calpine Corporation developed an anomalously hot (~400 °C at 2.5 km depth) part of the field in the northwest Geysers, including testing of an enhanced geothermal systems (EGS). Though the area is anomalously hot, geophysical methods have failed to...
Authors
Jared R. Peacock, Margaret Mangan, Mark Walters, Craig Hartline, Jonathan Glen, Tait Earney, William Schermerhorn
Discovery of a blind geothermal system in Southern Gabbs Valley, western Nevada, through application of the play fairway analysis at multiple scales Discovery of a blind geothermal system in Southern Gabbs Valley, western Nevada, through application of the play fairway analysis at multiple scales
The Great Basin region is capable of generating much greater amounts of geothermal energy than currently produced. Most geothermal resources in this region are blind, and thus favorable characteristics for geothermal activity must be synthesized and methodologies developed to discover new commercial-grade systems. The geothermal play fairway concept involves integration of multiple...
Authors
James Faulds, Jason Craig, Nicholas Hinz, Mark Coolbaugh, Jonathan Glen, Tait Earney, William Schermerhorn, Jared R. Peacock, Stephen Deoreo, Drew Siler
A geophysical characterization of the structural framework of the Camas Prairie Geothermal System, southcentral Idaho A geophysical characterization of the structural framework of the Camas Prairie Geothermal System, southcentral Idaho
Play Fairway Analysis methods, utilizing existing geologic, thermal, geochemical, and geophysical data were employed in an initial assessment of geothermal resources in the Snake River Plain. These efforts identified the Camas Prairie in southcentral Idaho as a region with elevated resource potential. Subsequent efforts included structural and geophysical data collection to identify the...
Authors
Jonathan Glen, Lee Liberty, Jared R. Peacock, Erika Gasperikova, Tait Earney, William Schermerhorn, Drew Siler, John Shervais, Patrick Dobson