Holocene faulting in the western Basin and Range, California
- California Dept. of Conservation, Sacramento, CA (United States). Div. of Mines and Geology
Principal late Quaternary faults in the Basin and Range Geomorphic Province of eastern and northeastern California were evaluated for evidence of Holocene surface fault rupture as part of DMG's Fault Evaluation and Zoning Project. Those faults considered to have been active in Holocene time were zoned for special studies in order to mitigate surface fault rupture hazard as authorized by the Alquist-Priolo Special Studies Zones Act of 1972. Thirty-seven faults or fault zones were evaluated from the southern Sierra Nevada east to Death Valley and north to Surprise Valley. About 70% of these faults have evidence of Holocene displacement. Slip-rates for 20 faults have been determined by others or were estimated during this study. It is difficult to categorize slip-rates in this region because fault zones often are characterized by a complex history of both right-lateral strike-slip (rlss) and normal dip-slip displacement include the Death Valley, Deep Springs, Genoa, Hilton Creek, Honey Lake, Owens Valley, and Panamint Valley faults. All but 2 of these faults (Deep Springs and Genoa) have correspondingly high slip-rates [>=] 2mm/yr. The Death Valley, Honey Lake, Owens Valley, and Panamint Valley faults are characterized primarily by rlss displacement; the other 3 faults have predominantly normal displacement. Most of the faults considered to have primarily vertical displacement are characterized by maximum vertical slip-rates less than 1mm/yr. Range-front faults with maximum vertical slip-rates [>=]1mm/yr include the Genoa, Hilton Creek, Mono Lake, Round Valley, Surprise Valley, and White Mountains faults.
- OSTI ID:
- 5291408
- Report Number(s):
- CONF-9305259-; CODEN: GAAPBC
- Journal Information:
- Geological Society of America, Abstracts with Programs; (United States), Vol. 25:5; Conference: 89. annual meeting of the Cordilleran Section and the 46th annual meeting of the Rocky Mountain Section of the Geological Society of America (GSA), Reno, NV (United States), 19-21 May 1993; ISSN 0016-7592
- Country of Publication:
- United States
- Language:
- English
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