Oligocene magmatic accretion and transtensional tectonics in the Central Basin Fault rift of the West Philippine back-arc basin: New insights from high-resolution multichannel seismic data

doi:10.1016/j.marpetgeo.2022.105703

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

	Oligocene magmatic accretion and transtensional tectonics in the Central Basin Fault rift of the West Philippine back-arc basin: New insights from high-resolution multichannel seismic data
	Zhang, Zhengyi 1,4,5; Dong, Dongdong 1,4,5; Sun, Weidong 1,2,3; Zhang, Guangxu 1,4,5
刊名	MARINE AND PETROLEUM GEOLOGY
	2022-07-01
卷号	141 页码:18
关键词	Central Basin Fault rift Sedimentary stratigraphy Intracrustal reflectors Magmatic accretion Oligocene transtensional tectonics
ISSN号	0264-8172
DOI	10.1016/j.marpetgeo.2022.105703
通讯作者	Dong, Dongdong(dongdongdong@qdio.ac.cn)
英文摘要	High-resolution multichannel seismic transects that span from oceanic crust domains, and the Central Basin Fault rift to the Kyushu-Palau Ridge are utilized to investigate the dynamic mechanism of the Oligocene tectonic evolution in the West Philippine Basin based on an analysis of sismostratigraphic sequences and the geometries of acoustic substrates. In the oceanic domains, the physiography is characterized by ridges and troughs, and the pelagic stratigraphic succession with transparent facies covers the irregular top of the basement. Relatively homogeneous intracrustal reflections probably correspond to an area of abundant magma supply during the major spreading period. However, a widespread discrete, layered and high-amplitude intracrustal reflector is present in the Central Basin Fault rift that can be interpreted as an area of weaker and unstable magma supply after the major spreading period. The first group of reflectors shows typical low-angle fault shapes; the second and third groups of layered intracrustal reflectors are characterized by spatially limited high-amplitude seismic reflections. Inclined and mounded features of the intracrustal reflectors are interpreted as the result of tectonic processes, suggesting the presence of later magmatic accretion and transtensional tectonics within the acoustic substrate. Additionally, in the Kyushu-Palau Ridge, the anticline that appears within the stratigraphic infills of the basins serves as evidence of transtensional faulting. Overall, we propose that the Oligocene tectonic evolution of the West Philippine Basin occurred during a later transcurrent period due to Oligocene magmatic accretion followed by transtensional tectonics. The changes in the magmatic supply rate and tectonic processes of the Central Basin Fault rift may have originated from the compressive process within the Kyushu-Palau Ridge.
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences[XDB42000000] ; National Natural Science Foundation of China[42106064] ; National Natural Science Foundation of China[41876043] ; National Natural Science Foundation of China[91958211] ; National Natural Science Foundation of China[41976052] ; National Natural Science Foundation of China[41976051] ; Open Fund of the Key Laboratory of Marine Geology and Environment, Chinese Academy of Sciences[MGE2021KG17] ; China Postdoctoral Science Foundation[2021M693209] ; Post-doctoral Applied Research Project of Qingdao ; State Key Laboratory of Marine Geology, Tongji University[MGK202106]
WOS研究方向	Geology
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000841504300002
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/179919]
专题	海洋研究所_海洋地质与环境重点实验室
通讯作者	Dong, Dongdong
作者单位	1.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Mineral Resources, Qingdao 266237, Peoples R China 3.Chinese Acad Sci, Ctr Deep Sea Res, Inst Oceanol, Qingdao 266071, Peoples R China 4.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266237, Peoples R China 5.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,Dong, Dongdong,Sun, Weidong,et al. Oligocene magmatic accretion and transtensional tectonics in the Central Basin Fault rift of the West Philippine back-arc basin: New insights from high-resolution multichannel seismic data[J]. MARINE AND PETROLEUM GEOLOGY,2022,141:18.
APA	Zhang, Zhengyi,Dong, Dongdong,Sun, Weidong,&Zhang, Guangxu.(2022).Oligocene magmatic accretion and transtensional tectonics in the Central Basin Fault rift of the West Philippine back-arc basin: New insights from high-resolution multichannel seismic data.MARINE AND PETROLEUM GEOLOGY,141,18.
MLA	Zhang, Zhengyi,et al."Oligocene magmatic accretion and transtensional tectonics in the Central Basin Fault rift of the West Philippine back-arc basin: New insights from high-resolution multichannel seismic data".MARINE AND PETROLEUM GEOLOGY 141(2022):18.