More than nine-tenths of the Upper Cretaceous rocks in northeastern Wyoming are fine-grained shales, mudstones, and calcareous marls. A comparative study of the mineralogy, chemical and mechanical composition, density and porosity, fissility, and lamination of samples of these rocks discloses several relations that throw light on the geologic history and structural deformation of the region, and perhaps on its oil and gas possibilities.
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Added Title:
United States Geological Survey Professional Paper 165-A
Added Title:
Shorter Contributions to General Geology, 1930
Description
More than nine-tenths of the Upper Cretaceous rocks in northeastern Wyoming are fine-grained shales, mudstones, and calcareous marls. A comparative study of the mineralogy, chemical and mechanical composition, density and porosity, fissility, and lamination of samples of these rocks discloses several relations that throw light on the geologic history and structural deformation of the region, and perhaps on its oil and gas possibilities.
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Rubey, William Walden.Lithologic Studies of Fine-Grained Upper Cretaceous Sedimentary Rocks of the Black Hills Region,
report,
1930;
Washington D.C..
(https://digital.library.unt.edu/ark:/67531/metadc784433/:
accessed December 11, 2023),
University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu;
crediting UNT Libraries Government Documents Department.