DOI: 10.1002/grl.50804
论文题名: Insights into distributed plate rates across the Walker Lane from GPS geodesy
作者: Lifton Z.M. ; Newman A.V. ; Frankel K.L. ; Johnson C.W. ; Dixon T.H.
刊名: Geophysical Research Letters
ISSN: 0094-8576
EISSN: 1944-8307
出版年: 2013
卷: 40, 期: 17 起始页码: 4620
结束页码: 4624
语种: 英语
英文关键词: GPS
; Owens Valley
; plate boundary
; slip rates
; tectonics
; Walker Lane
Scopus关键词: Distributed strain
; Geologic slip rates
; GPS velocity field
; Owens valleys
; Plate boundaries
; Slip rates
; Smooth transitions
; Walker Lane
; Complex networks
; Deformation
; Fish
; Geodesy
; Global positioning system
; Lakes
; Landforms
; Tectonics
; Tungsten compounds
; Velocity
; Geodetic satellites
; geodesy
; GPS
; mountain
; plate boundary
; Pleistocene
; shear zone
; slip rate
; tectonics
; velocity
; California
; Nevada
; Owens Valley
; United States
; Walker Lane
英文摘要: Contemporary geodetic slip rates are observed to be approximately two times greater than late Pleistocene geologic slip rates across the southern Walker Lane. Using a dense GPS network, we compare the present-day crustal velocities to observed geologic slip rates in the region. We find that the Walker Lane is characterized by a smooth transition from westward extension in the Basin and Range to northwestward motion of the Sierra Nevada block. The GPS velocity field indicates that (1) plate parallel (N37°W) velocities define a velocity differential of 10.6 ± 0.5 mm/yr between the western Basin and Range and the Sierra Nevada block, (2) there is ∼2 mm/yr of contemporary extension perpendicular to the normal faults of the Silver Peak-Lone Mountain extensional complex, and (3) most of the observed discrepancy in long- and short-term slip rates occurs across Owens Valley. We believe the discrepancy is due to distributed strain and underestimated geologic slip rates. Key Points The southern Walker Lane is a continuously deforming right-lateral shear zone Strain is not being transferred to the northeast of Fish Lake Valley Long-term slip rates in Owens Valley are underestimated The southern Walker Lane is a continuously deforming right-lateral shear zone Strain is not being transferred to the northeast of Fish Lake Valley Long-term slip rates in Owens Valley are underestimated ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84883728455&doi=10.1002%2fgrl.50804&partnerID=40&md5=53dccd12645b2a038f9f87f183740f5b
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/5840
Appears in Collections: 气候减缓与适应
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作者单位: School of Earth and Atmospheric Sciences, Georgia Institute of Technology, 311 Ferst Dr., Atlanta, GA 30332-0340, United States
Recommended Citation:
Lifton Z.M.,Newman A.V.,Frankel K.L.,et al. Insights into distributed plate rates across the Walker Lane from GPS geodesy[J]. Geophysical Research Letters,2013-01-01,40(17).