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National Geochemical Database: Concentrate

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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https://mrdata.usgs.gov/services/ngdbconc (WMS, version 1.3.0)

https://mrdata.usgs.gov/services/wfs/ngdbconc (WFS, version 1.1.0)

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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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Outline - Questions & Answers - Plain text - XML

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