Results: 1 - 4 of 4
Aug 31, 1977
Open File Report
… Cretaceous Clearwater Formation (shale), the Grand Rapids Formation …
Dec 31, 1972
Open File Report
… which consists of the Clearwater shale and the Wabiskaw glauconitic … slopes composed of Clearwater shale because of their …
Dec 22, 2005
Earth Sciences Report
… and dominated by carbonate, shale and evaporite deposits. The …
Dec 31, 1999
Earth Sciences Report
… material (e.g., anhydrite and shale beds) has been considered. As …