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Gravity inversion constrained by OBS receiver function reveals crustal structure in Ryukyu Trench

文献类型：期刊论文

作者Yang, Tingwei2,3; Xu, Ya3,4,5; Du, Nanqiao6; Xu, Tao2,5; Cao, Danping7; Nan, Fangzhou3,4,5; Chu, Wei3; Liang, Ce1; Hao, Tianyao3,4,5
刊名FRONTIERS IN EARTH SCIENCE
出版日期2023-04-20
卷号11页码:15
关键词gravity inversion ocean bottom seismometer receiver function Ryukyu Trench H-kappa stacking
DOI10.3389/feart.2023.1187683
英文摘要The Ryukyu Trench is located in the northern Philippine Sea. The subduction of the Philippine Sea Plate to the Eurasia Plate along the Ryukyu Trench in the NNW direction leads to extremely complex tectonic processes such as subduction, collision, accretion, and back-arc expansion. It is of great significance to obtain the crustal structure of the Ryukyu Trench for understanding the crustal deformation characteristics, subduction direction and the scale of the Philippine Sea Plate. The ocean bottom seismometer (OBS) could provide important information on the deep structure of the oceanic area, and the wide coverage of gravity anomaly can provide more constraints for the regional crustal structure. In this study, we put the time-delay term of the sedimentary layer into the H-? stacking formula, which eliminates the influence of the sedimentary layer in traditional H-? stacking. Based on the accurate crustal thickness at OBS locations, a gravity inversion method is proposed to solve the problem of non-uniqueness in gravity data and limited distribution of OBSs. By using this method, we obtain a crustal structure with higher resolution than Crust1.0 model in Ryukyu Trench. The results show that the crustal thickness in the Ryukyu Trench region thickens along the NNW subduction direction, revealing that the Philippine Plate's subduction direction towards the Eurasian Plate is in the NNW direction.
WOS关键词OCEAN-BOTTOM ; SUBDUCTION ZONE ; MOHO DEPTH ; FIELD ; ANISOTROPY ; THICKNESS ; SEA
资助项目National Natural Science Foundation of China[91858212] ; National Natural Science Foundation of China[42074092] ; National Natural Science Foundation of China[42130807] ; National Natural Science Foundation of China[42006062]
WOS研究方向Geology
语种英语
出版者FRONTIERS MEDIA SA
WOS记录号WOS:000981918600001
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/110908]  
专题地质与地球物理研究所_中国科学院矿产资源研究重点实验室
地质与地球物理研究所_中国科学院油气资源研究重点实验室
通讯作者Yang, Tingwei
作者单位1.Ocean Univ China, Coll Marine Technol, Fac Informat Sci & Engn, Qingdao, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing, Peoples R China
3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China
4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing, Peoples R China
5.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing, Peoples R China
6.Univ Toronto, Dept Earth Sci, Toronto, ON, Canada
7.China Univ Petr, Sch Geosci, Qingdao, Peoples R China
推荐引用方式
GB/T 7714		 Yang, Tingwei,Xu, Ya,Du, Nanqiao,et al. Gravity inversion constrained by OBS receiver function reveals crustal structure in Ryukyu Trench[J]. FRONTIERS IN EARTH SCIENCE,2023,11:15.
APA Yang, Tingwei.,Xu, Ya.,Du, Nanqiao.,Xu, Tao.,Cao, Danping.,...&Hao, Tianyao.(2023).Gravity inversion constrained by OBS receiver function reveals crustal structure in Ryukyu Trench.FRONTIERS IN EARTH SCIENCE,11,15.
MLA Yang, Tingwei,et al."Gravity inversion constrained by OBS receiver function reveals crustal structure in Ryukyu Trench".FRONTIERS IN EARTH SCIENCE 11(2023):15.

入库方式： OAI收割

来源：地质与地球物理研究所

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