Scarp degradation and fault history south of Carson City, Nevada
AuthorPease, Robert Charles
Geological Sciences and Engineering
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Examination of faults south of Carson City indicates that scarps erode more rapidly in non-indurated alluvium and that Pleistocene soils, developed on older scarps, prevent scarp degradation and result in faults with steeper debris slopes than those proposed by Wallace (1977). Based on dated soils and other geologic criteria, most faults in the thesis area underwent repeated activity throughout Pleistocene time followed by a period of dormancy in late Pleistocene and early Holocene. This was followed by a swarm of faulting within the last 4C00 years. Some of this activity occurred within the last 2000 years. Faults that have been active since middle Holocene have recurrence rates of 1330-3000 years.
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