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Book Chapter

Marine Jurassic Formations of Southern Alberta Plains

By
J. D. Weir
J. D. Weir
Calgary, Alberta
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Published:
January 01, 1954

Abstract

The Jurassic sediments of the southern Alberta plains, known only from subsurface work, are described as to lithology, thickness, distribution, stratigraphic relationships, and geologic history. The three-fold subdivision of the Ellis group into Swift formation, Rierdon formation, and Sawtooth formation, established in Montana, is recognizable and applicable in Alberta. A major unconformity between the Jurassic beds and the underlying Paleozoic limestone influences the distribution of the Sawtooth formation. Late Jurassic or early Cretaceous erosion truncating the Jurassic formations from south to north has determined the present extent and northern boundaries of these formations in southern Alberta.

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AAPG Special Publication

Western Canada Sedimentary Basin: A Symposium; Sponsored by the Alberta Society of Petroleum Geologists, and the Saskatchewan Society of Petroleum Geologists

Leslie M. Clark
Leslie M. Clark
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American Association of Petroleum Geologists
ISBN electronic:
9781629812465
Publication date:
January 01, 1954

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