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Dec 31, 1979
Earth Sciences Note
… of the Lower Cretaceous McMurray Formation. Some of these clays can … from shales of the Shaftesbury Formation probably could be fired … methods. Clays and shales of the Paskapoo Formation have potential …
Dec 31, 1977
Earth Sciences Note
… rocks older than the Kootenay Formation (Jurassic - Lower … locations. Clays from the Luscar Formation show the most potential … Kootenay, Dunvegan, Brazeau, and Paskapoo Formation clays if they …