DOI: 10.1016/j.epsl.2018.03.008
Scopus记录号: 2-s2.0-85044121215
论文题名: An Andean-type retro-arc foreland system beneath northwest South China revealed by SINOPROBE profiling
作者: Li J. ; Dong S. ; Cawood P.A. ; Zhao G. ; Johnston S.T. ; Zhang Y. ; Xin Y.
刊名: Earth and Planetary Science Letters
ISSN: 0012821X
出版年: 2018
卷: 490 起始页码: 170
结束页码: 179
语种: 英语
英文关键词: decollement
; Mesozoic
; retro-arc foreland
; seismic reflection
; SINOPROBE
; South China
Scopus关键词: Geodynamics
; Mass transfer
; Plates (structural components)
; Reflection
; Seismic waves
; Seismology
; decollement
; Mesozoic
; retro-arc foreland
; Seismic reflections
; SINOPROBE
; South China
; Tectonics
; data interpretation
; decollement
; depocenter
; foreland basin
; geodynamics
; intraplate process
; Mesozoic
; seismic data
; seismic reflection
; tectonics
; thrust
; China
; Sichuan Basin
英文摘要: In the Mesozoic, South China was situated along the convergent margin between the Asian and Pacific plates, providing an excellent laboratory to understand the interactions between deformation, sedimentation and magmatism in a retroarc environment. The crustal architecture of northwest South China is displayed along the ∼600-km-long SINOPROBE deep seismic reflection profiles and reveals from east to west: (1) highly folded and truncated reflectors in the upper crust of the Yangtze Fold Zone, which correspond to thin- and thick-skinned thrust systems, and document large-scale intraplate structural imbrication and shortening; (2) a crustal-scale flat-ramp-flat structure, termed the Main Yangtze decollement, which forms a weak, viscous layer to accommodate strain decoupling and material transport in the thin- and thick-skinned systems; and (3) nearly flat-lying reflectors in the Sichuan Basin, which support interpretation of the basin as a weakly deformed depocentre. The Yangtze Fold Zone and the Sichuan Basin represent a retro-arc foreland basin system that is >800 km away from the continental-margin magmatic arc. We suggest that tectonic processes across the arc and retro-arc systems, including arc magma flare-up, basin sedimentation, retroarc thrust propagation, lithosphere underthrusting, root foundering, and extension-related magmatism were interrelated and governed mass transfer. Age data and geological relations link the tectonic processes to evolving geodynamics of the subducting Paleo-Pacific plate. © 2018 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/109950
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
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作者单位: Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing, 100081, China; Department of Earth Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong; State Key Laboratory for Mineral Deposits Research, Nanjing University, Nanjing, 210093, China; School of Earth, Atmosphere & Environment, Monash University, Melbourne, VIC 3800, Australia; Earth & Atmospheric Sciences, University of Alberta, Earth Sciences Building, Edmonton, Alberta, Canada; Geologie, TU Bergakademie Freiberg, Freiberg, Germany
Recommended Citation:
Li J.,Dong S.,Cawood P.A.,et al. An Andean-type retro-arc foreland system beneath northwest South China revealed by SINOPROBE profiling[J]. Earth and Planetary Science Letters,2018-01-01,490