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Locations and summary of types of data available by borehole or other undergr...
This geospatial data set represents about 2,500 locations of boreholes, shafts, tunnels, and drifts on and around the Nevada Test Site (NTS) where rock-samples have been... -
Operation Basement: Missouri Precambrian Sample Database
In 1968, the Missouri Geological Survey (MGS) established the Operation Basement program to address three objectives: a) to obtain drill hole and underground mining data... -
Geochemical, petrophysical, and drill hole database for Mesoproterozoic igneo...
Geochemical, petrophysical, and depth to the Paleozoic-Precambrian basement interface from drill hole data for Mesoproterozoic igneous rocks and iron ore deposits of the St....