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This digital dataset represents the geology of the Short Canyon quadrangle at 1:24,000 scale. The Short Canyon quadrangle lies along the west edge of the Colorado Plateau physiographic province and the east edge of the High Plateaus, a transition zone between the Colorado Plateau to the east and the Basin and Range Province to the west, and is in the Colorado River drainage basin. The west boundary is located about 5 miles (8 km) east of Emery, Utah, and about 40 miles (64 km) east of Salina, Utah. The south boundary is 2 to 3 miles (3-5 km) north of Interstate Highway 70. Exposed bedrock ranges from the Middle Jurassic to Late Cretaceous in age, includes (in ascending order) the Carmel Formation (part), Entrada Sandstone, Curtis Formation, Summerville Formation, Morrison Formation, Cedar Mountain Formation, Dakota Formation, and the Mancos Shale (part), and is about 3700 feet (1200 m) thick. The rocks of the quadrangle dip gently northwestward from the large San Rafael Swell anticline (to the southeast) into the Wasatch Plateau syncline (to the northwest). Quaternary surficial deposits of Holocene and Pleistocene age include varieties of alluvium, eolian, mass-movement, and mixed-environment deposits. No mineral commodities are known to have been produced from the quadrangle area. Only thin coal deposits have been discovered in the Ferron Sandstone Member of the Mancos Shale and in the Dakota Formation. |