Preliminary chemical and mineralogical analyses of the major volcanic ash beds in the Oligocene Brule Formation, northwestern Nebraska

An edition of Preliminary chemical and mineralogical analyses of the major volcanic ash beds in the Oligocene Brule Formation, northwestern Nebraska (1994)

Preliminary chemical and mineralogical analyses of the major volcanic ash beds in the Oligocene Brule Formation, northwestern Nebraska

By Kendell A. Dickinson

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Publish Date

1994

Publisher

U.S. Dept. of Interior, U.S. Geological Survey,Open-File Reports Section, distributor]

Language

eng

Pages

Description:

subjects: Geology, Stratigraphic, Groups (Stratigraphy), Mines and mineral resources, Stratigraphic Geology

Places: Dawes County, Nebraska

Times: Oligocene