Is the Sevier Desert reflection of west-central Utah a normal fault?: Comment and Reply
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Is the Sevier Desert reflection of west-central Utah a normal fault?
A prominent west-dipping reflection that can be traced in seismic-reflection profiles over an area of 7000 km beneath the Sevier Desert basin of west-central Utah is generally referred to as the Sevier Desert detacbment and is widely regarded as one of tbe best examples of an upper-crustal low-angle normal fault. The absence of evidence for fault-related deformation in drill cuttings and core f...
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Coogan and DeCelles (1996) provided a welcome addition to the debate on the Sevier Desert reflection. The evidence and arguments presented on the nature of this subsurface feature merit particular scrutiny, as they bear directly on a firstorder issue in tectonics: the mechanical paradox of low-angle normal faults. Field geologists have argued that in some cases such faults must have moved at di...
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Re-evaluation of acoustic, gamma ray and dip meter logs from the Cominco American Federal No. 2 well in the Sevier Desert basin of west-central Utah sheds new light on the interpretation of Neoproterozoic and Cambrian stratigraphy and Mesozoic structure in a region that has been influential in the development of ideas about crustal shortening and extension. The most prominent of several major t...
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ژورنال
عنوان ژورنال: Geology
سال: 1995
ISSN: 0091-7613
DOI: 10.1130/0091-7613(1995)023<0669:itsdro>2.3.co;2