Banded red sandstone strata of the Kibbey sandstone overlain by green shale in the Otter formation. Cascade County, Montana, 1952.
Dates
Date Taken
1952
Summary
Banded red sandstone strata of the Kibbey sandstone overlain by green shale in the Otter formation. Above the arrows indicating the pre-Jurassic unconformity lies the Ellis group. View along Belt Creek in sec, 11, T. 17 N., R, 6 E. Undulations in the bedding of the Kibbey sandstone are probably caused by collapse subsequent to removal or heaving due to hydration of one or more gypsum or anhydrite beds in the lower part of the formation, Beds 11 to 16 of the measured section on Belt Creek were measured along these bluffs. Cascade County, Montana, 1952. Published as plate 2-B in U. S. Geological Survey Professional Paper 348. 1962.
Summary
Banded red sandstone strata of the Kibbey sandstone overlain by green shale in the Otter formation. Above the arrows indicating the pre-Jurassic unconformity lies the Ellis group. View along Belt Creek in sec, 11, T. 17 N., R, 6 E. Undulations in the bedding of the Kibbey sandstone are probably caused by collapse subsequent to removal or heaving due to hydration of one or more gypsum or anhydrite beds in the lower part of the formation, Beds 11 to 16 of the measured section on Belt Creek were measured along these bluffs. Cascade County, Montana, 1952.
Published as plate 2-B in U. S. Geological Survey Professional Paper 348. 1962.
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