Deltaic and shelf deposits in the Cretaceous Blackhawk Formation and Mancos Shale, Grand County, Utah (MP 91-6)

M. A. Chan

Continuous, well-preserved clastic depositional units south of the Book Cliffs escarpment of east-central Utah offer exceptional exposures of ancient deltaic, shoreline, shelf and offshore rocks. A stratigraphic and sedimentologic context for these Cretaceous units is an important tool in exploration for coal, oil, and gas, and for recognition of sand-body geometries in the subsurface. This study concentrates on the genetic relationships of litho- and depositional facies in the Upper Cretaceous Blackhawk Formation and Mancos Shale located in Grand County, Utah.

The purpose of this paper is to present detailed stratigraphic and sedimentologic information on a well-exposed and variable portion of the Upper Cretaceous section in Grand County, east-central Utah.

Other Information:
Published: 1991
Pages: 83 p.
Location: Grand County
Media Type: Paper Publication