Geochronological constraint of Early Mesozoic tectonic event at Northeast Vietnam
文献类型:期刊论文
作者 | Chen ZeChao1,2; Lin Wei1; Faure, Michel3; Lepvrier, Claude4; Chu Yang1; Wang QingChen1 |
刊名 | ACTA PETROLOGICA SINICA
![]() |
出版日期 | 2013-05-01 |
卷号 | 29期号:5页码:1825-1840 |
关键词 | South Margin Of South China Block Song Chay Belt Thrust Early Mesozoic Tectonic Evolution |
文献子类 | Article |
英文摘要 | The northeastern Vietnam, northeastern Guangxi, southwestern Guangdong and Hainan Island with NW-SE trending all locate in south margin of South China Block ( SCB). It is an important region to understanding the tectonic evolution of South China Block. Song Chay belt locates in the northeast region of Vietnam, a NE-SW mineral and stretching lineation, and top-to-the-NE ductile deformation are the main structures and observed both in Early Paleozoic lower metamorphism face strata and Late Paleozoic to Early Mesozoic unmetamorphozed sedimentary rocks. These structural characteristics were coeval with N/NE verging recumbent folds and nappes. Alike for the Song Chay belt, the same Early Mesozoic structural characteristics are also observed in Yunkai terrane, Hainan island and northeast region of Guangxi. All of these deformations occurred in the same tectonic event because of the time and the deformation style are almost the same. To decipher the time of this deformation, we study the structural character of deformed strata and granitic rocks, and analyzed the high quality U-Pb zircon geochronology data, then defined the time of nappes as 237 similar to 228Ma. The geodynamic of the tectonic event can be related to the collision between South China Block and Indochina in the Early Mesozoic time. We argue that South China Block subducted beneath to Day Nui Con Voi micro-continental block along Song Chay suture zone in Early Triassic, the south margin of SCB as the subduction plate were developed top to NE thrust and NE verging nappes. This orogeny is over at Late Triassic. Therefore, the northeastern Vietnam, northeastern Guangxi, southwestern Guangdong and Hainan island are belong to the southern margin of SCB and involved in the Indosinian orogenic belt. |
WOS关键词 | RIVER SHEAR ZONE ; TRUONG SON BELT ; ULTRAHIGH-PRESSURE METAMORPHISM ; U-PB GEOCHRONOLOGY ; LEFT-LATERAL SHEAR ; TAN-LU FAULT ; SOUTH CHINA ; AILAO SHAN ; SOUTHEASTERN CHINA ; INDOSINIAN OROGENY |
WOS研究方向 | Geology |
语种 | 英语 |
WOS记录号 | WOS:000321226200025 |
源URL | [http://ir.iggcas.ac.cn/handle/132A11/62635] ![]() |
专题 | 地质与地球物理研究所_岩石圈演化国家重点实验室 |
作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Univ Orleans, Inst Sci Terre Orleans, F-45071 Orleans, France 4.Univ Paris 06, CNRS UMR7072, F-75252 Paris 05, France |
推荐引用方式 GB/T 7714 | Chen ZeChao,Lin Wei,Faure, Michel,et al. Geochronological constraint of Early Mesozoic tectonic event at Northeast Vietnam[J]. ACTA PETROLOGICA SINICA,2013,29(5):1825-1840. |
APA | Chen ZeChao,Lin Wei,Faure, Michel,Lepvrier, Claude,Chu Yang,&Wang QingChen.(2013).Geochronological constraint of Early Mesozoic tectonic event at Northeast Vietnam.ACTA PETROLOGICA SINICA,29(5),1825-1840. |
MLA | Chen ZeChao,et al."Geochronological constraint of Early Mesozoic tectonic event at Northeast Vietnam".ACTA PETROLOGICA SINICA 29.5(2013):1825-1840. |
入库方式: OAI收割
来源:地质与地球物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。