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The AAPG/Datapages Combined Publications Database

AAPG Bulletin


Volume: 49 (1965)

Issue: 3. (March)

First Page: 349

Last Page: 349

Title: Upheaval Previous HitDomeNext Hit, San Juan County, Utah: ABSTRACT

Author(s): Richard B. Mattox

Article Type: Meeting abstract


Upheaval Previous HitDomeNext Hit is a dissected domal structure that lies in the rugged "Canyon Lands" of southeastern Utah. Extensive canyon development within the Previous Hitdome'sNext Hit immediate area has produced remarkable exposures of the feature. It is surrounded by a distinct rim syncline and piercement is much in evidence within the Previous Hitdome'sNext Hit central portion; the area of deformation is approximately three miles in diameter and a vertical displacement of at least 1,200 feet exists at the feature's center. Strata that crop out within the domal area range in age from Permian to Jurassic, and all exhibit deformation by the forces that produced the Previous HitdomeNext Hit. The area is underlain by some 3,000 feet of Pennsylvanian saline strata. The origin of the Previous HitdomeNext Hit has not been proven, but the following hypotheses have bee advanced: (1) it is a cryptovolcanic feature; (2) it was formed by meteorite impact; and (3) it is a Previous HitsaltNext Hit Previous HitdomeNext Hit (but there are conflicting views concerning the reason for Previous HitsaltNext Hit intrusion at this specific site). An additional hypothesis for Previous HitsaltNext Hit intrusion is advanced: Upheaval Previous HitDomeNext Hit is the product of Previous HitsaltTop intrusion resulting from differential compaction of the sediments lying above and on the flanks of a low conical hill on the Precambrian surface.

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