Report on the building and ornamental stones of Canada (1912)
Parks, William A. (William Arthur), 1868-1936, Canada. Mines Branch (1901-1936) · Ottawa : Dept. of Mines, Mines Branch · leaf 364
ed in blocks whichhave been lying in the quarry for 2 years. The lower grey beds (1202) are thicker, more uniform and less shatteredthan the upper stone: they differ considerably in grain and show a differentstructure under the microscope; nevertheless, they fade imperceptiblyupwards into the… … Paskapoo sandstone. Upper beds In quarries of Pembina Quarries, Limited, Entwistle, Alberta. 243 ordinary temperature of the laboratory were still distinctly wet after36 hours. This grey stone could certainly be quarried in large blocks but itis very friable, low in strength, and subject to rapid…
Building stones · Geology, Economic · Stone industry and trade
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