Fallon FORGE: Gravity and Magnetics Data

                                            [
  "019:20"
]
                                        

                                            {
  "fn": "Doug Blankenship",
  "@type": "vcard:Contact",
  "hasEmail": "mailto:dablank@sandia.gov"
}
                                        

                                            true
                                        

                                            [
  {
    "@type": "dcat:Distribution",
    "title": "3D Gravity Model.zip",
    "format": "zip",
    "accessURL": "https://gdr.openei.org/files/990/3D_Gravity_Model_FallonFORGE.zip",
    "mediaType": "application/zip",
    "description": "This archive contains 3D gravity inversion results and methodology. 
The 3D geophysical modelling was performed using the open source SimPEG code (www.simpeg.xyz). The input and output geophysical model files are provided in UBC format (more information on UBC format files can be found at: gif.eos.ubc.ca). The output density model file has also been supplied in .txt file format.
The 3D gravity modelling exercise at Fallon FORGE was guided by: a) a 3D geologic model developed by the FORGE team and b) rock density measurements made in Phase 2B. This information is provided elsewhere in the GDR. The core of the 3D model volume used in the gravity modeling exercise has the following dimensions: 8 km (N-S) x 8 km (E-W) x 4 km (thick). This core model volume is centered on the Fallon FORGE site. The majority of the core model volume has 100 m x 100 m x 100 m cubic cells. Near the land surface, model cells are as thin as 1 m to adequately capture variations in topography.
All horizontal coordinates in the input and output files are in UTMNAD83 zone 11. All elevations are in meters above sea level."
  },
  {
    "@type": "dcat:Distribution",
    "title": "Density and Magnetic Susceptibility.zip",
    "format": "zip",
    "accessURL": "https://gdr.openei.org/files/990/DensityMagSusc_FallonFORGE.zip",
    "mediaType": "application/zip",
    "description": "This archive contains density and magnetic susceptibility data, and brief synopsis of rock density measurements which were made in Nov.-Dec. 2017 as part of the Fallon FORGE project. Researchers from University of Nevada, Reno measured rock density on core samples obtained from three different wells: 51-20 (~6 km SE of the FORGE site), FOH2 (within the FORGE area), and BCH-3 (at the Bradys geothermal area ~40 km NW of the FORGE site). The subsurface geology at these three wells is similar and consists of Quaternary sediments (QTs) on top, overlying mafic Tertiary volcanic rocks (Tba) which, in turn, overlie a variety of Mesozoic basement rocks (Mz). In the BCH-3 well, a layer of Oligocene-age rhyolitic ignimbrite (Ttr) is sandwiched in between the Tba and Mz rocks. UNR researchers measured grain density, saturated bulk density, and dry bulk density on the core samples from these wells (although in this memo, only saturated bulk density is reported).
Densities were measured on the following major rock types encountered in each well: 
51-20: only Tba (n = 33). 
FOH-2: only Tba (n = 172). 
BCH-3: Tba, Ttr, and Mz (n = 120). "
  },
  {
    "@type": "dcat:Distribution",
    "title": "Processed Gravity.zip",
    "format": "zip",
    "accessURL": "https://gdr.openei.org/files/990/ProcessedGravity_FallonFORGE.zip",
    "mediaType": "application/zip",
    "description": "A total of 903 gravity stations were read on the FORGE project over the course of 25 production days. The stations were read along lines or on a grid with station spacings varying from 100 meters to 2 kilometers. This archive contains a geodatabase (.gdb) file, an xml file, and a csv file containing the processed gravity data. Also included is a report summarizing the gravity survey. "
  },
  {
    "@type": "dcat:Distribution",
    "title": "Previously Collected Gravity Data",
    "format": "HTML",
    "accessURL": "https://gdr.openei.org/submissions/813",
    "mediaType": "text/html",
    "description": "Existing gravity products from Fallon FORGE phase 1 (2016)."
  }
]
                                        

                                            [
  "3d",
  "BCH-3",
  "Bunejug Mountains",
  "Density",
  "EGS",
  "FOH-2",
  "FORGE",
  "Fallon",
  "Gravity",
  "Magnetic Susceptibility",
  "NV",
  "Nevada",
  "SW51-20",
  "data",
  "energy",
  "geophysics",
  "geospatial data",
  "geothermal",
  "gravmag",
  "inverse model",
  "inversion",
  "magnetics",
  "rock density",
  "vetted-no"
]
                                        

                                            [
  "019:006"
]
                                        

                                            {
  "name": "Sandia National Laboratories",
  "@type": "org:Organization"
}
                                        

                                            "{"type":"Polygon","coordinates":[[[-118.85,39.18],[-118.45,39.18],[-118.45,39.58],[-118.85,39.58],[-118.85,39.18]]]}"