Mineral Resources On-Line Spatial Data
Mineral Resources > Online Spatial Data > National Geochemical Database > Rocks
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
To zoom in, hold shift key and drag mouse. Click a site for details.
|
|