... 2018, Geologic FieldTrip Guide of Volcaniclastic Sediments from Snow- and ... U.S. Geological Survey Geologic Quadrangle Map GQ-1301, scale 1:24,000.
Author: Robert F. Biek
Publisher: Geological Society of America
"The Markagunt and Sevier gravity slides are gigantic landslides that resulted from gravitationally induced catastrophic failure of the southern flank of the Oligocene to Miocene Marysvale volcanic field. Each is nearly 100 km long with runouts over the former land surface >35 km; together they span 7000 km2 and rank among Earth's largest terrestrial landslides. Basal cataclastic layers, injectites, pseudotachylyte, deformed clasts, and a variety of kinematic indicators demonstrate catastrophic emplacement, which was preceded by slow gravitational spreading of the volcanic field. This volume offers a history of their discovery, our current understanding of the gravity slides, and a guide to particularly instructive exposures for which the authors document their conclusions about the size, age, and significant structural features of these newly discovered features"--
Doelling , H.H. , 1975 , Geology and mineral resources of Garfield County ... Utah : Utah Geological and Mineral Survey Map 74 , scale 1 : 50,000 .
Author: S. Bartsch-Winkler
Category: Behind the Rocks Wilderness (Utah)
The San Rafael Swell wilderness study areas, including the Muddy Creek, Crack Canyon, San Rafael Reef, Mexican Mountain, and Sids Mountain Wilderness Study Areas, are in Emery County, south-central Utah. At least 4,100 current and historic mining claims have been located in or near the study areas, primarily for uranium. Vanadium is the most valuable byproduct of uranium mining, although minor copper, silver, lead, zinc, and gold also occur in some deposits.