Geochemical and petrographic data for intrusions peripheral to the Big Timber Stock, Crazy Mountains, Montana

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Description The Paleocene Fort Union Formation hosts a compositionally diverse array of Eocene plugs, dikes, and sills arrayed around the Eocene Big Timber stock in the Crazy Mountains of south-central Montana. The geochemistry and petrography of the sills have no
Originators du Bray, Edward A., Van Gosen, Bradley S.
Publication U.S. Geological Survey Data Series 895

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