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Mineral Resources On-Line Spatial Data

National Geochemical Database: Rock

Geochemical analysis of rock samples collected and analyzed by the USGS. This dataset includes and supersedes rock data formerly released as "Geochemistry of igneous rocks in the US extracted from the PLUTO database". Select and Download here

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legend for Federal lands
legend for streams
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legend for roads

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URL: https://mrdata.usgs.gov/geochemistry/ngdbrock.html
Page Contact Information: Peter Schweitzer
Page Last Modified: Wednesday, 15-Feb-2017 10:06:09 MST