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The AAPG/Datapages Combined Publications Database

AAPG Bulletin


Volume: 36 (1952)

Issue: 5. (May)

First Page: 961

Last Page: 961

Title: Salt-Generated Structures of the Colorado Plateau and Possible Analogies: ABSTRACT

Author(s): Wm. Lee Stokes

Article Type: Meeting abstract


Salt- and gypsum-bearing sediments exceeding 10,000 feet in thickness are known in the Jurassic of central Utah and in the Pennsylvanian of eastern Utah and western Colorado. Similar structures, both large and small scale, appear in association with deformed salt-bearing beds in the two areas.

Evidence seems to indicate that structural evolution of the two areas followed essentially similar lines: (1) gradual upthrust of elongate masses of plastic sediment perhaps under compressional forces or perhaps under purely Previous HitgeostaticNext Hit Previous HitpressureTop, (2) stagnation or cessation of upward movement allowing uniform sedimentation across sites of former acute deformation, (3) collapse by solution with subsequent erosion forming normal faults, synclinal grabens, graben valleys, and perhaps, with local oversteepening, actual "gravity thrusts."

Caution is suggested in interpreting strong local structures of the sort found in these areas as evidence for orogenic activity.

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Copyright 1997 American Association of Petroleum Geologists