Results: 1 - 4 of 4
Apr 03, 2017
Presentation
… gas sector continues to develop shale-gas plays in the Duvernay and …
Dec 31, 1968
Earth Sciences Report
… a relatively impermeable marine shale, completely underlies the … beds of argillaceous sandstone, shale, and coal which immediately …
Dec 31, 1982
Open File Report
… Barite, Bentonite, Clay and Shale, Coal, Copper, Coquina, …
Dec 31, 1957
Bulletin
… the lower part of the Colorado shale of Alberta and Saskatchewan, and in the Mowry shale of the Black Hills area of …