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Preliminary detrital zircon data for Upper Cretaceous to Paleocene strata of the Crazy Mountains Basin, Montana

Published by U.S. Geological Survey | Department of the Interior | Catalog Last Checked: May 05, 2026 at 09:44 PM | Dataset Last Updated: July 09, 2021 at 12:00 AM
This document includes sandstone provenance data for Upper Cretaceous to Paleocene strata preserved in the Crazy Mountains Basin of western Montana, USA. The dataset includes detrital zircon data for six samples from the Upper Cretaceous Hoppers Formation (1 sample), Upper Cretaceous Billman Creek Formation (1 sample), and Paleocene Fort Union Formation (4 samples). Detrital zircon data were acquired at the University of Arizona LaserChron Center in 2017.

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