| Online link | https://doi.org/10.3133/ds895 |
|---|---|
| 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 |