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Detrital Zircon U-Pb Age Distribution and Hf Isotopic Constraints From the Terrigenous Sediments of the Song Chay Suture Zone (NE Vietnam) and Their Paleogeographic Implications on the Eastern Paleo-Tethys Evolution

文献类型：期刊论文

作者Wang, Yin2,6; Lin, Wei2,6; Faure, Michel3; Lepvrier, Claude4; Chu, Yang6; Vuong Van Nguyen1; Hoai Luong Thi Thu1; Wei, Wei6; Liu, Fei2,5,6; Tich Van Vu1
刊名TECTONICS
出版日期2021-08-01
卷号40期号:8页码:24
关键词Song Chay melange NE Vietnam nappe detrital zircon age distribution Hf isotopic composition Paleo-Tethys
ISSN号0278-7407
DOI10.1029/2020TC006611
英文摘要The location of the suture zone between the South China Block (SCB) and the Indochina Block (IB) is disputed. Recently, along the Song Chay (Chay river) belt, a melange zone was proposed as a potential suture zone of the SCB and IB. However, the provenance and age of the Song Chay melange is poorly known. In order to better constrain the age and provenance of the elements forming the Song Chay melange, nine samples of detrital material, and one orthogneiss were subjected to zircon U-Pb and Hf isotope analysis. Detrital zircons from the silty matrix of the Song Chay melange record three major Neoproterozoic age clusters at 580-650, 700-800, and 900-1,000 Ma, which correspond well to the substratum of the SCB. Two minor Late and Early Paleozoic age groups at 270-330, and 420-500 Ma, with mainly negative epsilon(Hf)(t) values were also recovered. We consider that the zircons in the matrix of the melange were mainly derived from the subducting plate, namely the SCB. This interpretation is supported by the occurrence of lensoid sandstone blocks, representing the substratum of the SCB, included into the melange. The deposition age of the Song Chay melange is between 310 and 250 Ma. Our results demonstrate that in an ophiolitic melange, the detrital material does not invariably come from the overriding plate, but at the onset of the collision, the subducting continental plate may also supply the terrigenous material.
WOS关键词RIVER SHEAR ZONE ; ARC/BACK-ARC ASSEMBLAGES ; SOUTH CHINA IMPLICATIONS ; PLATE TECTONIC CYCLE ; A-TYPE GRANITES ; MA FAULT ZONE ; INDO-CHINA ; TRUONG-SON ; NORTHERN VIETNAM ; SW CHINA
资助项目National Nature Science Foundation of China[91855212] ; National Nature Science Foundation of China[41872208] ; National Key R&D Program of China[2016YFC0600401]
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000691011200003
出版者AMER GEOPHYSICAL UNION
资助机构National Nature Science Foundation of China ; National Nature Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/102586]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者Lin, Wei
作者单位1.Hanoi Univ Sci, Fac Geol, Hanoi, Vietnam
2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China
3.Univ Orleans, Inst Sci Terre Orleans, UMR CNRS 7327, Orleans, France
4.Univ Paris 06, Inst Sci Terre Paris, UMR CNRS 7193, Case 129, Paris, France
5.China Geol Survey, Wuhan Ctr, Wuhan, Peoples R China
6.Chinese Acad Sci, State Key Lab Lithospher Evolut, Inst Geol & Geophys, Innovat Acad Earth Sci, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Yin,Lin, Wei,Faure, Michel,et al. Detrital Zircon U-Pb Age Distribution and Hf Isotopic Constraints From the Terrigenous Sediments of the Song Chay Suture Zone (NE Vietnam) and Their Paleogeographic Implications on the Eastern Paleo-Tethys Evolution[J]. TECTONICS,2021,40(8):24.
APA Wang, Yin.,Lin, Wei.,Faure, Michel.,Lepvrier, Claude.,Chu, Yang.,...&Tich Van Vu.(2021).Detrital Zircon U-Pb Age Distribution and Hf Isotopic Constraints From the Terrigenous Sediments of the Song Chay Suture Zone (NE Vietnam) and Their Paleogeographic Implications on the Eastern Paleo-Tethys Evolution.TECTONICS,40(8),24.
MLA Wang, Yin,et al."Detrital Zircon U-Pb Age Distribution and Hf Isotopic Constraints From the Terrigenous Sediments of the Song Chay Suture Zone (NE Vietnam) and Their Paleogeographic Implications on the Eastern Paleo-Tethys Evolution".TECTONICS 40.8(2021):24.

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来源：地质与地球物理研究所

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