|
Geochemical maps of stream sediments in central Colorado, from New Mexico to Wyoming
Data portrayed in this portfolio of landscape geochemical maps serve as a geochemical baseline for the region, indicate element abundances characteristic of various lithologic terranes, and identify gross anthropogenic effects of historical mining |
Info |
|
USGS National Map of Surficial Mineralogy
Maps of exposed surface mineral groups derived from automated spectral analysis of satellite and airborne imaging systems; these data suggest areas that may contain mineral deposits of various types. |
Info |