Lithologic Studies of Fine-Grained Upper Cretaceous Sedimentary Rocks of the Black Hills Region
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.
Date:
1930
Creator:
Rubey, William Walden
Partner:
UNT Libraries Government Documents Department