Paleozoic Correlations in the Northern San Rafael Swell Area, Carbon and Emery Counties, Utah
Craig Morgan and Gerald Waanders
1594 W. North Temple, Salt Lake City, UT
A thick sequence of upper Paleozoic strata has been penetrated by wells in Carbon and northern Emery Counties, Utah. They represent deposition on a shallow marine shelf during much of the Mississippian. The Pennsylvanian saw the rise of the ancestral Uncompahgre Highlands and associated downwarp forming the Paradox Basin. The Paradox structural basin extended into Carbon County where interbedded sandstone, shale, carbonates, and evaporites were deposited in a restricted basin. Separating the Paradox Basin from the open marine environment to the west was the Emery shelf. During the Pennsylvanian, much of the Upper Mississippian was eroded from the Emery shelf and Pennsylvanian strata were never deposited or were deposited and later eroded from the high. The maximum unconformity places Wolfcampian Elephant Canyon Formation on Kinderhookian to Osagean Redwall Limestone, representing a gap of about 40 myr.
AAPG Search and Discovery Article #90169©2013 AAPG Rocky Mountain Section 62nd Annual Meeting, Salt Lake City, Utah, September 22-24, 2013