Stratigraphy, petrology, and provenance of the Albian Blackleaf Formation and the Cenomanian to Turonian lower part of the Frontier Formation in part of Beaverhead and Madison Counties, Montana
January 1, 1988
The units constitute a dominantly clastic sequence of sandstone, conglomerate, mudstone, and shale deposited in (west) to shallow marine (east) environments. Petrologic and paleocurrent data support an interpretation that Blackleaf and lower Frontier debris was derived from different source areas. -from Authors
Citation Information
| Publication Year | 1988 |
|---|---|
| Title | Stratigraphy, petrology, and provenance of the Albian Blackleaf Formation and the Cenomanian to Turonian lower part of the Frontier Formation in part of Beaverhead and Madison Counties, Montana |
| Authors | T. S. Dyman, W. J. Perry, D. J. Nichols |
| Publication Type | Article |
| Publication Subtype | Journal Article |
| Series Title | Mountain Geologist |
| Index ID | 70014294 |
| Record Source | USGS Publications Warehouse |