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USGS Mineral Resources: National Geochemical Database: Rock
From the site: "Geochemical analysis of rock samples collected and analyzed by the USGS. This dataset includes and supersedes rock data formerly released as "Geochemistry of... -
Geochemical paleoredox indicators in Devonian–Mississippian black shales, Cen...
Information on subsurface data, mineral compositions/amounts, in the Appalachian Basin black shales -
WV Geology - WV Bouguer Gravity Map
From the site: "A reference map of Bouguer gravity values with axes of persistent highs and lows published by the WV Geological and Economic Survey in 1987. In May/June 2007,...
E' possibile inoltre accedere al registro usando le API (vedi Documentazione API).