Magnetotelluric Data Collected in 2016 over the San Emidio Geothermal Field in Nevada
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.
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[
"019:20"
]
|
| contactPoint |
{
"fn": "Matt Folsom",
"@type": "vcard:Contact",
"hasEmail": "mailto:mfolsom@ormat.com"
}
|
| dataQuality |
true
|
| description | 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. |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "Specification for EDI file format",
"format": "txt",
"accessURL": "http://www.mtnet.info/docs/ediformat.txt",
"mediaType": "text/plain",
"description": "Specification for EDI file format defined by the Society of Exploration Geophysicists (SEG)"
},
{
"@type": "dcat:Distribution",
"title": "Final Processed Survey Results Details.txt",
"format": "txt",
"accessURL": "https://gdr.openei.org/files/1434/Details.txt",
"mediaType": "text/plain",
"description": "This includes more details on the final processed survey results delivered. Line item (d) in "Final Processed Survey Results Details.txt" references a site at which data was collected, "?0000?". This is a remote reference site, a data collection point gathered daily to filter out noise."
},
{
"@type": "dcat:Distribution",
"title": "2D and 3D Resistivity Models.zip",
"format": "zip",
"accessURL": "https://gdr.openei.org/files/1434/Documents.zip",
"mediaType": "application/zip",
"description": "Documents, including SE2DPF.csv and res-input-50505.txt. SE2DPF.csv is the 2D resistivity cross-sections along 10 acquisition profiles at San Emidio while res-input-50505.txt is the 3D resistivity distribution at San Emidio, interpolated using 50x50x5 m cell size."
},
{
"@type": "dcat:Distribution",
"title": "Field Sheets.zip",
"format": "zip",
"accessURL": "https://gdr.openei.org/files/1434/Field%20Sheets.zip",
"mediaType": "application/zip",
"description": "Notes and log sheets from field operations, including:
Field Notes
US00527S - Progress Field.xlsx"
},
{
"@type": "dcat:Distribution",
"title": "Folsom_2020.pdf",
"format": "pdf",
"accessURL": "https://gdr.openei.org/files/1434/Folsom_2020.pdf",
"mediaType": "application/pdf",
"description": "The San Emidio Desert hosts a hidden, forced-convection geothermal resource situated within a prominent right-step of the Lake Range in northwestern Nevada. Recent exploration drilling 1.5 to 2.5 km to the SW of the current production area has confirmed 162°C fluids 540 m below the surface with favorable permeability for development. This paper presents results from an integrated modeling study of the system that takes advantage of new geophysical data sets, including 211 broadband magnetotelluric stations, 1207 gravity stations, 176 line-km of ground magnetic data and a passive seismic experiment conducted with 1302 stations of 6 geophones each. These data are considered within the context of drilling results and other datasets to develop updated geologic and conceptual models of the geothermal system. Notable results are: (1) imaging of an extensive zone of mineralized/silicified Tertiary sediments along an outflow path and up-dip of normal faulting; (2) imaging of two distinct dome-shaped electrical conductors situated above zones of enhanced temperature and permeability; (3) coincidence of one of these zones with enhanced semblance of passive micro-seismic signals observed using a dense array; and (4) added constraints on the fault block geometry within the right step of the Lake Range, with implications for understanding the controls of deep permeability in the system."
},
{
"@type": "dcat:Distribution",
"title": "Magnetotelluric data in EDI format.zip",
"format": "zip",
"accessURL": "https://gdr.openei.org/files/1434/MT_Data.zip",
"mediaType": "application/zip",
"description": "EDI format is the SEG Standard for Magnetotelluric Data defined by the Society of Exploration Geophysicists which is linked bellow for more information.
Impedance_EDI
Spectral_EDI
Spectral_EDI_DividedMF"
},
{
"@type": "dcat:Distribution",
"title": "Occam 1D Inversion.zip",
"format": "zip",
"accessURL": "https://gdr.openei.org/files/1434/Occam_1D_Inversion.zip",
"mediaType": "application/zip",
"description": "Results of 1-dimensional Occam inversion, including folders titled: Model Image and Model Text. Model image includes graphs of depth vs resistivity, resistivity vs frequency, and phase vs frequency. The Model Text folder includes data on depth, resistivity, and thickness. "
},
{
"@type": "dcat:Distribution",
"title": "Parallel Sensor Test.zip",
"format": "zip",
"accessURL": "https://gdr.openei.org/files/1434/PST.zip",
"mediaType": "application/zip",
"description": "Description of processing strategy. Which include files San Emidio - Appendix - PST.docx and San Emidio - Appendix - miniPST.docx. The document with miniPST.docx includes information on the parallel sensor test at a new remote station. The PST.docx includes information on the parallel sensor test for sensors used during the survey."
},
{
"@type": "dcat:Distribution",
"title": "Quantec MT Points.kml",
"format": "kml",
"accessURL": "https://gdr.openei.org/files/1434/Quantec%20MT_points.kml",
"mediaType": "application/octet-stream",
"description": "Coordinates of MT observation points in KML format for Google Earth"
},
{
"@type": "dcat:Distribution",
"title": "Quantec MT Profile.kml",
"format": "kml",
"accessURL": "https://gdr.openei.org/files/1434/Quantec%20MT_profile.kml",
"mediaType": "application/octet-stream",
"description": "Coordinates of MT profiles in KML format for Google Earth"
},
{
"@type": "dcat:Distribution",
"title": "Survey Files.zip",
"format": "zip",
"accessURL": "https://gdr.openei.org/files/1434/SurveyFiles.zip",
"mediaType": "application/zip",
"description": "These are the 52 profile site and 29 MT site survey files. Each survey file includes location data and other relevant data."
}
]
|
| DOI | 10.15121/1974786 |
| identifier | https://data.openei.org/submissions/7541 |
| issued | 2016-11-09T07:00:00Z |
| keyword |
[
"Geophysics",
"Pacific DC Intertie",
"Processed data",
"WHOLESCALE",
"energy",
"geothermal",
"gravity",
"hole",
"hydrologic",
"integrated geologic model",
"magnetotellurics",
"mechanical",
"modeling",
"observation",
"passive micro-seismic",
"physics",
"spatial",
"stress",
"system",
"temporal",
"thermal",
"water"
]
|
| landingPage | https://gdr.openei.org/submissions/1434 |
| license | https://creativecommons.org/licenses/by/4.0/ |
| modified | 2023-05-24T19:13:47Z |
| programCode |
[
"019:006"
]
|
| projectLead | Mike Weathers |
| projectNumber | EE0007698 |
| projectTitle | A Novel Approach to Map Permeability Using Passive Seismic Emission Tomography |
| publisher |
{
"name": "Ormat Technologies, Inc.",
"@type": "org:Organization"
}
|
| spatial |
"{"type":"Polygon","coordinates":[[[-119.6,40.18],[-119.2,40.18],[-119.2,40.58],[-119.6,40.58],[-119.6,40.18]]]}"
|
| title | Magnetotelluric Data Collected in 2016 over the San Emidio Geothermal Field in Nevada |
