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  4. 中国科学院油气资源研究重点实验室
Crustal structure beneath the southern Korean Peninsula from local earthquakes

文献类型：期刊论文

作者Kim, Kwang-Hee1; Park, Jung-Ho2; Park, Yongcheol3; Hao, Tian-Yao4; Kim, Han-Joon5
刊名GEOPHYSICAL JOURNAL INTERNATIONAL
出版日期2017-05-01
卷号209期号:2页码:969-978
关键词Seismic tomography Continental neotectonics Crustal structure Asia
ISSN号0956-540X
DOI10.1093/gji/ggx079
文献子类Article
英文摘要The 3-D subsurface structure beneath the southern Korean Peninsula is poorly known, even though such information could be key in verifying or rejecting several competing models of the tectonic evolution of East Asia. We constructed a 3-D velocity model of the upper crust beneath the southern Korean Peninsula using 19 935 P-wave arrivals from 747 earthquakes recorded by high-density local seismic networks. Results show significant lateral and vertical variations: velocity increases from northwest to southeast at shallow depths, and significant velocity variations are observed across the South Korea Tectonic Line between the Okcheon Fold Belt and the Youngnam Massif. Collision between the North and South China blocks during the Early Cretaceous might have caused extensive deformation and the observed negative velocity anomalies in the region. The results of the tomographic inversion, combined with the findings of previous studies of Bouguer and isostatic gravity anomalies, indicate the presence of high-density material in the upper and middle crust beneath the Gyeongsang Basin in the southeastern Korean Peninsula. Although our results partially support the indentation tectonic model, it is still premature to discard other tectonic evolution models because our study only covers the southern half of the peninsula.
WOS关键词TELESEISMIC RECEIVER FUNCTIONS ; WAVE VELOCITY STRUCTURE ; 3-DIMENSIONAL P ; TRAVEL-TIMES ; EAST-ASIA ; CALIFORNIA ; COLLISION ; MODEL ; SUBDUCTION ; INVERSION
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000402641600033
出版者OXFORD UNIV PRESS
资助机构KMA Research Development Program(KMIPA2015-3010) ; National Natural Science Foundation of China(41210005) ; KMA Research Development Program(KMIPA2015-3010) ; National Natural Science Foundation of China(41210005) ; KMA Research Development Program(KMIPA2015-3010) ; National Natural Science Foundation of China(41210005) ; KMA Research Development Program(KMIPA2015-3010) ; National Natural Science Foundation of China(41210005)
源URL[http://ir.iggcas.ac.cn/handle/132A11/52885]  
专题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Kim, Kwang-Hee
作者单位1.Pusan Natl Univ, Dept Geol Sci, Busan 46241, South Korea
2.Korea Inst Geosci & Mineral Resources, Earthquake Res Ctr, Daejeon 34132, South Korea
3.Korea Polar Res Inst, Div Polar Earth Syst Sci, Incheon 21990, South Korea
4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China
5.Korea Inst Ocean Sci & Technol, Ansan 15627, Gyeonggi Do, South Korea
推荐引用方式
GB/T 7714		 Kim, Kwang-Hee,Park, Jung-Ho,Park, Yongcheol,et al. Crustal structure beneath the southern Korean Peninsula from local earthquakes[J]. GEOPHYSICAL JOURNAL INTERNATIONAL,2017,209(2):969-978.
APA Kim, Kwang-Hee,Park, Jung-Ho,Park, Yongcheol,Hao, Tian-Yao,&Kim, Han-Joon.(2017).Crustal structure beneath the southern Korean Peninsula from local earthquakes.GEOPHYSICAL JOURNAL INTERNATIONAL,209(2),969-978.
MLA Kim, Kwang-Hee,et al."Crustal structure beneath the southern Korean Peninsula from local earthquakes".GEOPHYSICAL JOURNAL INTERNATIONAL 209.2(2017):969-978.

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来源：地质与地球物理研究所

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