DOI: 10.1002/2014GL060097
论文题名: Active back thrust in the eastern Taiwan suture revealed by the 2013 Rueisuei earthquake: Evidence for a doubly vergent orogenic wedge?
作者: Chuang R.Y. ; Johnson K.M. ; Kuo Y.-T. ; Wu Y.-M. ; Chang C.-H. ; Kuo L.-C.
刊名: Geophysical Research Letters
ISSN: 0094-10066
EISSN: 1944-9797
出版年: 2014
卷: 41, 期: 10 起始页码: 3464
结束页码: 3470
语种: 英语
英文关键词: Central Range fault
; Longitudinal Valley
; orogenic wedge
; Rueisuei earthquake
Scopus关键词: Earthquakes
; Landforms
; Central ranges
; Coseismic slip distribution
; Geomorphic expression
; Longitudinal Valley
; Orogenic wedge
; Seismic activity
; Strong-motion data
; Surface displacement
; Faulting
; active fault
; coseismic process
; displacement
; earthquake event
; exhumation
; GPS
; orogeny
; suture zone
; tectonic wedge
; thrust
; Taiwan
英文摘要: Rapid exhumation of 3-10mm/yr of the Taiwan metamorphic range is often explained as the unroofing of the retrowedge of a doubly vergent mountain belt. Yet, to date, the Central Range fault forming the boundary of the retrowedge has displayed no definitive evidence for recent seismic activity and no unambiguous geomorphic expression over much of the fault. The 2013M6.4 Rueisuei reverse-faulting earthquake nucleated at the eastern boundary of the retrowedge and appears to illuminate the west dipping Central Range fault. We estimate the fault geometry and coseismic slip distribution using a uniform stress drop slip inversion and surface displacements derived from GPS and strong-motion data. We identify a ∼42° dipping blind reverse fault, consistent with the previously proposed buried Central Range fault beneath the highly active Longitudinal Valley fault. This earthquake may be the first indication that rapid exhumation and uplift occur along a distinct fault structure bounding the eastern margin of the Taiwan retrowedge. © 2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84901161349&doi=10.1002%2f2014GL060097&partnerID=40&md5=24eee416f0d965d750133418f95f47b8
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7330
Appears in Collections: 气候减缓与适应
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作者单位: Department of Geological Sciences, Indiana University, Bloomington, Bloomington, IN, United States
Recommended Citation:
Chuang R.Y.,Johnson K.M.,Kuo Y.-T.,et al. Active back thrust in the eastern Taiwan suture revealed by the 2013 Rueisuei earthquake: Evidence for a doubly vergent orogenic wedge?[J]. Geophysical Research Letters,2014-01-01,41(10).