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Apr 23, 2017
Data
… units evaluated for shale- and siltstone-hosted … paddy member, poker chip shale, second white specks … units evaluated for shale- and siltstone-hosted … Units Evaluated for Shale- and Siltstone-Hosted …
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, 1958
Bulletin
… environment. The Bearpaw marine shale of southern Alberta was …
Dec 31, 1973
Earth Sciences Report
… gravel, coarse sand, till, clay, shale, fine sand, silt and … erosion; 8)avoiding terracing of shale and mudstone slopes which …