Construction of the Caroline Ridge uppermost basement in the West Pacific: Implications from intrabasement seismic reflectors

doi:10.1002/gj.4875

IOCAS-IR > 海洋地质与环境重点实验室

	Construction of the Caroline Ridge uppermost basement in the West Pacific: Implications from intrabasement seismic reflectors
	Zhang, Zhengyi 1,2,6; Dong, Dongdong2,3,5 ; Li, Sanzhong 1,4; Wang, Xiujuan 1,4; Zhang, Guangxu 2,4; Fan, Jianke 2,3; Li, Cuilin 2,3
	2023-09-14
发表期刊	GEOLOGICAL JOURNAL
ISSN	0072-1050
页码	15
通讯作者	Zhang, Zhengyi(zhangzhengyi@ouc.edu.cn) ; Dong, Dongdong(dongdongdong@qdio.ac.cn)
摘要	The construction model of the Caroline Ridge uppermost basement is still unresolved, requiring more inference from limited geophysical observational data. Here, we systematically reveal intrabasement seismic reflectors of volcanic sequences within the rifted and subsidence domains of the Caroline Ridge. Extrusive centres and three types of intrabasement reflectors, that is, relatively horizontal, ridgeward-dipping and folded reflectors, have been identified. Extrusive centres in the rifted domain are characterized by domal shapes and produce sub-parallel stratified intrabasement reflectors within the conduits that connect with the relatively horizontal reflectors distributed on both sides of the basement highs. Intrabasement reflectors display increasing dip angles away from the extrusive centre and present ridgeward-dipping reflectors but not troughward-dipping reflectors in subsidence domain 1, suggesting a brittle deformation process. Layered intrabasement reflectors are developed within subsidence domain 2 but display folded and mounded morphologies, suggesting a ductile deformation process. We propose that the Caroline Ridge formation was supported by discrete extrusive centres, and the uppermost basement construction model has experienced stages of transition from brittle deformation to ductile deformation, which can provide new clues for the early-stage crustal evolution of global oceanic plateaus.
关键词	Caroline Ridge extrusive centres intrabasement reflectors uppermost basement West Pacific
DOI	10.1002/gj.4875
收录类别	SCI
语种	英语
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences[XDB42000000] ; National Natural Science Foundation of China[41976051] ; National Natural Science Foundation of China[42106064] ; National Natural Science Foundation of China[91958211] ; Taishan Scholars Program ; Post-doctoral Applied Research Project of Qingdao ; State Key Laboratory of Marine Geology, Tongji University[MGK202106] ; Science and Technology Innovation Project of Laoshan Laboratory[LSKJ202204400] ; Open Fund of the Key Laboratory of Marine Geology and Environment, Chinese Academy of Sciences[MGE2021KG17]
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:001069662700001
出版者	WILEY
WOS关键词	LARGE IGNEOUS PROVINCES ; OCEANIC PLATEAU FORMATION ; ONTONG JAVA PLATEAU ; YAP TRENCH-ARC ; AGULHAS PLATEAU ; SHATSKY RISE ; INDIAN-OCEAN ; KERGUELEN PLATEAU ; NORTHWEST PACIFIC ; MANTLE PLUMES
引用统计
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/181725
专题	海洋地质与环境重点实验室
通讯作者	Zhang, Zhengyi; Dong, Dongdong
作者单位	1.Ocean Univ China, MOE & Coll Marine Geosci, Frontiers Sci Ctr Deep Ocean Multispheres & Earth, Key Lab Submarine Geosci & Prospecting Tech, Qingdao, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao, Peoples R China 3.Laoshan Lab, Lab Marine Geol, Qingdao, Peoples R China 4.Laoshan Lab, Lab Marine Mineral Resources, Qingdao, Peoples R China 5.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China 6.Ocean Univ China, MOE & Coll Marine Geosci, Frontiers Sci Ctr Deep Ocean Multispheres & Earth, Key Lab Submarine Geosci & Prospecting Tech, Qingdao 266100, Peoples R China
第一作者单位	中国科学院海洋研究所
通讯作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Zhang, Zhengyi,Dong, Dongdong,Li, Sanzhong,et al. Construction of the Caroline Ridge uppermost basement in the West Pacific: Implications from intrabasement seismic reflectors[J]. GEOLOGICAL JOURNAL,2023:15.
APA	Zhang, Zhengyi.,Dong, Dongdong.,Li, Sanzhong.,Wang, Xiujuan.,Zhang, Guangxu.,...&Li, Cuilin.(2023).Construction of the Caroline Ridge uppermost basement in the West Pacific: Implications from intrabasement seismic reflectors.GEOLOGICAL JOURNAL,15.
MLA	Zhang, Zhengyi,et al."Construction of the Caroline Ridge uppermost basement in the West Pacific: Implications from intrabasement seismic reflectors".GEOLOGICAL JOURNAL (2023):15.