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Supplemental material: 40Ar/39Ar Age of the Manson Impact Structure, Iowa, and Correlative Impact Ejecta in the Crow Creek Member of the Pierre Shale (Upper Cretaceous), South Dakota and Nebraska

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journal contribution
posted on 01.01.1998 by Glenn A. Izett
GSA Data Repository Item 9813, GSA Bulletin, Vol. 110, p. 361. File size: 7 p., about 362 K bytes.

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