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High resolution helicopter-borne magnetic and electromagnetic survey Eureka Graben area, Colorado September 1999
Survey parameters, data acquisition and processing procedures, and products of a 1999 airborne geophysical survey of this area. Data provided in GXF format and binary formats. |
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Shapefiles to accompany Colorado Mineral Belt revisited
Based on detailed information on the location of the Tertiary intrusions and mineral deposits, and on the control provided by the Proterozoic structures, all superimposed using GIS, a new outline of the Colorado Mineral Belt is proposed. Older representations are included for comparison. Data are provided in shapefile format. |
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Magnetotelluric sounding data in the Silverton Caldera complex, Colorado, 2018
Magnetotelluric sounding data collected in July 2018 in the Silverton Caldera complex, Colorado, in the Southern Rocky Mountain Volcanic Field to understand the geologic structure of this area. |
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Digital map of iron sulfate minerals, other mineral groups, and vegetation of the San Juan Mountains, Colorado, and Four Corners Region derived from automated analysis of Landsat 8 satellite data
Multispectral remote sensing data acquired by the Landsat 8 Operational Land Imager (OLI) sensor were analyzed using a new, automated technique to generate a map of exposed mineral and vegetation groups in this area. Results are provided in ERDAS Imagine format. |
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Global Geochemical Database for Critical Minerals in Archived Mine Samples
Chemistry and geologic information for historic ore and ore-related rock samples from mineral deposits in the United States and from archetypal deposits from 27 other countries. Data are provide in Microsoft Access, Microsoft Excel, and CSV formats. |
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Airborne electromagnetic and magnetic survey data of the San Juan-Silverton Caldera complex, Silverton, Colorado, 2019
Airborne electromagnetic and magnetic survey data were collected during 2019 along 1,467 line-kilometers in this area. The survey was flown at a mean flight height of 140 meters (m) above terrain and line spacings ranging from 150 m to 600 m. Data are provided in CSV and shapefile formats. |
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Audiomagnetotelluric sounding data in the Silverton Caldera complex, Colorado, 2018
Audiomagnetotelluric sounding data collected in 2018 in this area to understand subsurface geologic structure. |
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Magnetic susceptibility measurements on hydrothermally altered rocks in the Silverton caldera, southwest Colorado
Magnetic susceptibility measurements on rock outcrops to help understand magnetic survey anomalies in this area. A total of 1,400 measurements of magnetic susceptibility from 87 locations have been conducted on Paleogene volcanic and plutonic rocks that have been hydrothermally altered. Data are provided in CSV format. |
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Airborne electromagnetic and magnetic survey data, Silverton, Colorado, 2019
Airborne electromagnetic and magnetic survey data collected during April and May 2019 along 1,467 line-kilometers in this area. Data are provided in netCDF format. |
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