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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...
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....