SCSIO OpenIR  > 中科院边缘海地质重点实验室
Distribution and identification Of the low-velocity layer in the northern South China Sea
Zhao, MH; Qiu, XL; Xu, HL; Shi, XB; Wu, SM; Ye, CM; Xia, SH; mhzhao@scsio.ac.cn
2007
Source PublicationPROGRESS IN NATURAL SCIENCE
ISSN1002-0071
Volume17Issue:5Pages:591-600
AbstractThe low-velocity layer (LVL), closely related with tectonic activities and dynamic settings, has always been a hot topic in the deep crustal structure studies. The deep seismic (OBS/OBH) and onshore-offshore experiments have been extensively implemented in the northern South China Sea (SCS) since the 1990s. Six seismic profiles were finished on the northern margin of SCS by domestic and international cooperations. The features of crustal structures were revealed and five velocity-inversion layers were discovered. Among them three LVLs with 3.0-3.5 km.s(-1) velocity are located in the sedimentary structure (2.0-6.0 km in depth and 2.0-4.6 km in thickness) of the Yinggehai Basin and Pearl River Mouth Basin. They were identified by the reflective and refractive phases for their shallow depth. The other two LVLs with 5.5-6.0 km.s(-1) velocity generally existed in the middle crust (7.0-18.0 km in depth) with an about 2.5-6.0 km thickness in the transitional crustal structure of the northeastern and northwestern SCS. They were detected by the refractive phase from their overlain and underlying layers. We explored the possible tectonic formation mechanisms combining with previously reported results, which provided evidence for the formation and evolution of SCS.
DepartmentChinese Acad Sci, S China Sea Inst Oceanol, Key Lab Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China; Earthuake Adm Guangdong Prov, Guangzhou 510070, Guangdong, Peoples R China
KeywordLow-velocity Layer Deep Crustal Structure The norThern South China Sea Obs/obh And Onshore-offshore Seismic Experiments
Subject AreaMaterials Science, Multidisciplinary ; Multidisciplinary Sciences
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Indexed Bysci
Funding Project海洋地质
WOS IDWOS:000247805800013
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/4484
Collection中科院边缘海地质重点实验室
Corresponding Authormhzhao@scsio.ac.cn
Recommended Citation
GB/T 7714
Zhao, MH,Qiu, XL,Xu, HL,et al. Distribution and identification Of the low-velocity layer in the northern South China Sea[J]. PROGRESS IN NATURAL SCIENCE,2007,17(5):591-600.
APA Zhao, MH.,Qiu, XL.,Xu, HL.,Shi, XB.,Wu, SM.,...&mhzhao@scsio.ac.cn.(2007).Distribution and identification Of the low-velocity layer in the northern South China Sea.PROGRESS IN NATURAL SCIENCE,17(5),591-600.
MLA Zhao, MH,et al."Distribution and identification Of the low-velocity layer in the northern South China Sea".PROGRESS IN NATURAL SCIENCE 17.5(2007):591-600.
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