Generalized History of Williston Basin in Saskatchewan Deduced from Cross Sections
W. B. Gallup, G. J. Hamilton, 1954. "Generalized History of Williston Basin in Saskatchewan Deduced from Cross Sections", Western Canada Sedimentary Basin: A Symposium; Sponsored by the Alberta Society of Petroleum Geologists, and the Saskatchewan Society of Petroleum Geologists, Leslie M. Clark
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The general geological history of the Canadian part of the Williston basin and its northward extension can be deduced from the two accompanying regional, generalized cross sections. Certain aspects of the section are briefly outlined as follows.
From the evidence of several deep wells, Cambrian strata appear to underlie the entire area. Ordovician and Silurian sediments are not differentiated, although this may be possible. The Devonian thickens northward (Fig. 3), and it is probable that during late Devonian time a broad, shallow basin existed to the north of the present Williston basin.