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40Ar/39Ar age of the Manson, Iowa, impact structure and coeval impact ejecta in the Crow Creek member of the Pierre Shale, South Dakota and Nebraska

January 1, 1997

No abstract available.

Publication Year 1997
Title 40Ar/39Ar age of the Manson, Iowa, impact structure and coeval impact ejecta in the Crow Creek member of the Pierre Shale, South Dakota and Nebraska
DOI 10.3133/ofr97523
Authors G. A. Izett, W. A. Cobban, G. B. Dalrymple, J.D. Obradovich
Publication Type Report
Publication Subtype USGS Numbered Series
Series Title Open-File Report
Series Number 97-523
Index ID ofr97523
Record Source USGS Publications Warehouse