By: S. Heuscher
The Henry Mountains coalfield is in central Wayne and Garfield Counties in a remote area of Utah with few paved roads. The coalfield lies in a structural basin called the Henry Mountains syncline. The syncline is bounded on the west by the Waterpocket Fold, and on the east by the Henry Mountains and Monument upwarp. This north-south elongated basin extends about 50 miles along its axis and is 2 to 18 miles wide. The coalfield consists primarily of two coal-bearing units within the Cretaceous Mancos Shale: the Ferron Sandstone Member and the Muley Canyon Sandstone Member, which lies about 1000 feet above the Ferron Member. The outcrop of the Ferron Sandstone Member defines the extent of the coalfield. The Muley Canyon Sandstone Member is the focus of this study.
The purpose of this study was to re-evaluate the coal resource in the Muley Canyon Sandstone Member of the Mancos Shale. The re-evaluation was based on a compilation of existing geologic data from the Utah Geological Survey's coal files and published geologic reports.
Pages: 19 p.
Location: Garfield County and Wayne County