Results: 1 - 6 of 6
Apr 30, 2012
Open File Report
… by sulphur-stained, dark grey shale of the Westgate Formation. A … bentonite units in the otherwise shale-dominated Fish Scales … the Belle Fourche Formation is shale dominated with silty lenses, …
Apr 20, 2020
Report
… anhydrite, carbonate, and shale. Understanding the degree of …
May 17, 2019
Poster
… comprising anhydrite, shale, red beds, and dolomite, and …
Dec 31, 1982
Open File Report
… Barite, Bentonite, Clay and Shale, Coal, Copper, Coquina, …
Dec 31, 1976
Open File Report
… of exposed sandstone and shale. The climate is continental …