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

Kendell A. Dickinson

doi:10.3133/ofr94292

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

Open-File Report 94-292

By: Kendell A. Dickinson

https://doi.org/10.3133/ofr94292

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Abstract

Additional publication details
Publication type	Report
Publication Subtype	USGS Numbered Series
Title	Preliminary chemical and mineralogical analyses of the major volcanic ash beds in the Oligocene Brule Formation, northwestern Nebraska
Series title	Open-File Report
Series number	94-292
DOI	10.3133/ofr94292
Year Published	1994
Language	ENGLISH
Publisher	U.S. Geological Survey,
Description	36 leaves :ill., map ;28 cm.