Tidal Sand Flat Deposits in Lower Cretaceous Dakota Group Near Denver, Colorado
West of Denver, on the east side of the Dakota hogback, large bedding plane surfaces dipping 35° to 40° east expose the upper 30 meters of the 100-meter thick Lower Cretaceous Dakota Group (Fig. 14-1). The Dakota Group of this area is primarily a shoal-water deltaic assemblage within which many different subenvironments are recognized (MacKenzie, 1971, 1972; Weimer and Land, 1972).
KeywordsDepression Mold Sandstone Shale Cretaceous
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