Arid
DOI10.1130/B25879.1
A 25,000-year record of earthquakes on the Owens Valley fault near Lone Pine, California: Implications for recurrence intervals, slip rates, and segmentation models
Bacon, Steven N.; Pezzopane, Silvio K.
通讯作者Bacon, Steven N.
来源期刊GEOLOGICAL SOCIETY OF AMERICA BULLETIN
ISSN0016-7606
出版年2007
卷号119期号:7-8页码:823-847
英文摘要

Seven trenches in eastern California across the Owens Valley fault near Lone Pine expose two episodes of faulting since early Holocene time in the form of similar to 1 m throw in lacustrine beds with liquefaction that were buried and then faulted again similar to l m by the M 7.5 to 7.75 A.D. 1872 Owens Valley earthquake. Geomorphic maps, applications of sequence stratigraphy, and analyses of radiocarbon from charcoal and tufa deposits indicate that the paleoearthquake, the penultimate event here, occurred between 10,200 200 and 8800 200 cal yr B.P The cumulative vertical displacement from these last two earthquakes in three trenches averages 2.4 +/- 0.3 m (2 sigma), and the penultimate event has slightly larger displacements. A synthesis of available data indicates that the antepenultimate event was probably as large and occurred between c sigma. 24,000 and 14,000 cal yr B.P (2(sigma). Thus, the two interseismic intervals between the last three surface-faulting earthquakes on the southern Owens Valley fault are each similar to 10,000 yr. This similar to 25,000-year record indicates that the "two-event" normal-oblique slip rate on the Owens Valley fault near Lone Pine is 1.0 +/- 0.5 m/k.y. This result is similar to that of several previous geological studies here, yet it is still slower than slip rates on the northern Owens Valley fault and several factors slower than contemporary geodetic measurements. This study attempts to account for different dating methods and interpretational uncertainties, to acknowledge how little is known about the slip history of the Owens Valley fault and adjacent faults, and to consider the role of segmentation, as well as splay and distributed faulting, in comparisons of displacement data among different sites along the entire similar to 100 +/- 10 km length of the Owens Valley fault.


英文关键词Owens Valley fault paleoseismology recurrence interval slip rate segmentation
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000247896000005
WOS关键词WESTERN UNITED-STATES ; RADIOCARBON AGE CALIBRATION ; FISH SPRINGS FAULT ; EASTERN CALIFORNIA ; SHEAR ZONE ; RANGE PROVINCE ; SIERRA-NEVADA ; STRAIN ACCUMULATION ; NORTH-AMERICA ; MOJAVE-DESERT
WOS类目Geosciences, Multidisciplinary
WOS研究方向Geology
来源机构Desert Research Institute
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/154306
作者单位(1)Desert Res Inst, Reno, NV 89512 USA;(2)Humboldt State Univ, Dept Geol, Arcata, CA 95521 USA
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Bacon, Steven N.,Pezzopane, Silvio K.. A 25,000-year record of earthquakes on the Owens Valley fault near Lone Pine, California: Implications for recurrence intervals, slip rates, and segmentation models[J]. Desert Research Institute,2007,119(7-8):823-847.
APA Bacon, Steven N.,&Pezzopane, Silvio K..(2007).A 25,000-year record of earthquakes on the Owens Valley fault near Lone Pine, California: Implications for recurrence intervals, slip rates, and segmentation models.GEOLOGICAL SOCIETY OF AMERICA BULLETIN,119(7-8),823-847.
MLA Bacon, Steven N.,et al."A 25,000-year record of earthquakes on the Owens Valley fault near Lone Pine, California: Implications for recurrence intervals, slip rates, and segmentation models".GEOLOGICAL SOCIETY OF AMERICA BULLETIN 119.7-8(2007):823-847.
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