Dynamic processes of upper plate deformation at the New Guinea Trench

doi:10.1016/j.tecto.2022.229517

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋地质与环境重点实验室

	Dynamic processes of upper plate deformation at the New Guinea Trench
	Zhang, Zhengyi 3,4,6; Luan, Xiwu 4,5; Tian, Fanfan 2,4; Ran, Weimin 1,4; Zhang, Liang 4,6; Dong, Dongdong 3,6; Sun, Weidong 2,4
刊名	TECTONOPHYSICS
	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
DOI	10.1016/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
出版者	ELSEVIER
WOS记录号	WOS:000846923000001
内容类型	期刊论文
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.