DOI: 10.1002/2014GL061115
论文题名: Investigating the lithospheric velocity structures beneath the Taiwan region by nonlinear joint inversion of local and teleseismic P wave data: Slab continuity and deflection
作者: Huang H.-H. ; Wu Y.-M. ; Song X. ; Chang C.-H. ; Kuo-Chen H. ; Lee S.-J.
刊名: Geophysical Research Letters
ISSN: 0094-9785
EISSN: 1944-9516
出版年: 2014
卷: 41, 期: 18 起始页码: 6350
结束页码: 6357
语种: 英语
英文关键词: joint inversion
; seismic tomography
; seismotectonics
; Taiwan orogeny
; three-dimensional slab geometry
Scopus关键词: Geometry
; Seismology
; Tectonics
; Joint inversion
; Seismic tomography
; Seismotectonics
; Slab geometry
; Taiwan orogeny
; Plates (structural components)
; data set
; geometry
; geomorphology
; lithosphere
; nonlinearity
; orogeny
; P-wave
; plate tectonics
; seismic tomography
; seismotectonics
; slab
; subduction zone
; teleseismic wave
; three-dimensional modeling
; velocity structure
; Taiwan
英文摘要: The interaction between two flipping subduction systems shapes the complicated lithospheric structures and dynamics around the Taiwan region. Whether and in what form the Eurasian Plate subducts/deforms under Taiwan Island is critical to the debate of tectonic models. Although an east dipping high-velocity anomaly down to a depth below 200 km has been reported previously, its detailed morphology remains uncertain and leads to different interpretations. With a two-step strategy of nonlinear joint inversion, the slab images of the Eurasian Plate were retrieved in a geometry that is hyperthin in the south, becoming massive and steeper in the central, and severely deformed in the north. The possible depth and dimension of a slab break were also investigated through synthetic tests of whether the slab had torn. Moreover, the slab deflection found at ~23.2°N latitude seems to correspond to where the nonvolcanic tremors and recent NW-SE striking structures have occurred in southern Taiwan. Key Points High-resolution lithospheric images are retrieved by a two-step joint inversionThree-dimensional geometry of the east subducting slab under Taiwan is establishedA possible slab deflection is observed at around latitude 23.2°N ©2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84911164390&doi=10.1002%2f2014GL061115&partnerID=40&md5=d5a5137cf8e61dcfdc007cceb5b3a3a3
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7049
Appears in Collections: 气候减缓与适应
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作者单位: Institute of Earth Sciences, Academia Sinica, Taipei, Taiwan
Recommended Citation:
Huang H.-H.,Wu Y.-M.,Song X.,et al. Investigating the lithospheric velocity structures beneath the Taiwan region by nonlinear joint inversion of local and teleseismic P wave data: Slab continuity and deflection[J]. Geophysical Research Letters,2014-01-01,41(18).