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Dynamic processes of upper plate deformation at the New Guinea Trench

文献类型：期刊论文

作者Zhang, Zhengyi3,4,6; Luan, Xiwu4,5; Tian, Fanfan2,4; Ran, Weimin1,4; Zhang, Liang4,6; Dong, Dongdong3,6; Sun, Weidong2,4
刊名TECTONOPHYSICS
出版日期2022-09-20
卷号839页码:15
关键词Thrust deformation Transtensional deformation Oceanic plateau subduction New Guinea Trench Transform margin
ISSN号0040-1951
DOI10.1016/j.tecto.2022.229517
通讯作者Luan, Xiwu(xluan@qnlm.ac)
英文摘要The interactions between arc-continent collision and subduction zones are still poorly understood. Here, we use 2D seismic data to document upper plate deformational features and identify different structural styles along the New Guinea Trench, western Pacific, and discuss their broader significance. In the western section, normal faults and negative flower structures occur within the strata of the upper plate. An unconformity represents the signal of tectonically driven subsidence. In the eastern section, both thick-skinned and thin-skinned thrusting are found within the frontal upper plate. In the central section, rare extensional or shortening deformation is identified within the forearc basement and overlying strata. Horizontal, thick sedimentary sequences within the Caroline subbasin have been subducted beneath the upper plate. This suggests that Miocene subduction in the eastern section led to the formation of a thrust-deformed ophiolitic basement in the upper plate. Since the Miocene, strike-slip tectonic processes dominated in the upper plate, causing compressional deformation in the strata in the eastern section and extensional to transtensional deformation in the strata in the western section. The strike -slip tectonic processes might have been weakened in the upper plate in central section due to the incoming Eauripik Rise. Over geologic time, arc-continent collision processes and related changing of regional tectonic forces can have a long-lived influence on shaping and deforming subduction systems.
资助项目National Natural Science Foundation of China[42106064] ; National Natural Science Foundation of China[92055211] ; China-ASEAN Maritime Cooperation Fund Project[12120100500017001] ; Open Fund of the Key Laboratory of Marine Geology and Environment, Chinese Academy of Sciences[MGE2021KG17] ; China Postdoctoral Science Foundation[2021M693209] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB42000000] ; State Key Laboratory of Marine Geology, Tongji University[MGK202106]
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000846923000001
出版者ELSEVIER
源URL[http://ir.qdio.ac.cn/handle/337002/180894]  
专题海洋研究所_海洋地质与环境重点实验室
通讯作者Luan, Xiwu
作者单位1.China Geol Survey, Qingdao Inst Marine Geol, Qingdao 266071, Peoples R China
2.Chinese Acad Sci, Ctr Deep Sea Res, Inst Oceanol, Qingdao 266071, Peoples R China
3.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Geol, Qingdao 266237, Peoples R China
4.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Mineral Resources, Qingdao 266237, Peoples R China
5.Shandong Univ Sci & Technol, Coll Earth Sci & Engn, Qingdao 266590, Peoples R China
6.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Zhengyi,Luan, Xiwu,Tian, Fanfan,et al. Dynamic processes of upper plate deformation at the New Guinea Trench[J]. TECTONOPHYSICS,2022,839:15.
APA Zhang, Zhengyi.,Luan, Xiwu.,Tian, Fanfan.,Ran, Weimin.,Zhang, Liang.,...&Sun, Weidong.(2022).Dynamic processes of upper plate deformation at the New Guinea Trench.TECTONOPHYSICS,839,15.
MLA Zhang, Zhengyi,et al."Dynamic processes of upper plate deformation at the New Guinea Trench".TECTONOPHYSICS 839(2022):15.

入库方式： OAI收割

来源：海洋研究所

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