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The AAPG/Datapages Combined Publications Database

AAPG Bulletin

Abstract


Volume: 15 (1931)

Issue: 10. (October)

First Page: 1227

Last Page: 1242

Title: Bearpaw Shale and Contiguous Formations in Lethbridge Area, Alberta

Author(s): Theodore A. Link (2), A. J. Childerhose (3)

Abstract:

The Bearpaw shale of the Lethbridge area is 726 feet thick. It contains at least twenty-two bentonite beds, three distinct sandstone phases, which have been named for local usage, a glauconite sand, and two zones with exceptional profusion of fossils. The overlying Fox Hills sandstone has a thickness of 142 feet, and consists primarily of one unbroken sequence of coarse, massive, greenish sandstone which weathers buff, with an Ostrea coquina near the top. The Lethbridge coal measures of the upper Belly River series contain several coal seams, two of which are commercial. The top is marked by a thin, brown-weathering sandstone and locally an Ostrea coquina is found above the top coal bed. Descriptions of these formations, with stratigraphic columns and a brief historical s etch, are submitted.

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