Geology of the Gray Horse area, Osage County, Oklahoma

Abstract

This report is a study of rocks that are exposed at the surface within the Gray Horse area; Osage County, Oklahoma. The primary objective of this investigation was to map and describe in detail, rock units of Upper Pennsylvanian and Lower Permian age, which constitute the surface rocks of this area. Par­ticular emphasis was placed on areal distribution, changes in lithology, in thickness, and in faunal assemblages along the strike of the beds. In carrying out such an objective a secondary purpose is realized: that of determining the persistence of thin rock units that extend from southeastern Nebraska across Kansas and into north-central Okla­homa as they grade into the basinal deposits in central and southern Oklahoma.