Results: 1 - 4 of 4
Apr 20, 2020
Report
… anhydrite, carbonate, and shale. Understanding the degree of …
Nov 18, 2008
Data
… coal, shaly-coal and coaly-shale), formation tops 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, 1999
Earth Sciences Report
… material (e.g., anhydrite and shale beds) has been considered. As …