Geochemistry of concentrates from the National Geochemical Database. Primarily inorganic elemental concentrations, most samples are from the continental US and Alaska.
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ngdbconc.kml (uncompressed 92 Mbytes)
ngdbconc.kmz (compressed 3.4 Mbytes)
Show in your GIS using OGC web services:
Service, version | URL | Capabilities document |
---|---|---|
WMS, version 1.3.0 | https://mrdata.usgs.gov/services/ngdbconc | Capabilities |
WFS, version 1.1.0 | https://mrdata.usgs.gov/services/wfs/ngdbconc | Capabilities |
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ngdbconc-csv.zip (Shapefile with a URL to the full report online, all attributes as included CSV files 52 MB zip expands to 527 MB)
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