中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Structural and geochronological evidence for multiple episodes of tertiary deformation along the Ailaoshan-Red River shear zone, southeastern Asia, since the Paleocene

文献类型:期刊论文

作者Zhang, JJ; Zhong, DL; Sang, HQ; Zhou, Y
刊名ACTA GEOLOGICA SINICA-ENGLISH EDITION
出版日期2006
卷号80期号:1页码:79-96
关键词Ailaoshan-Red River shear zone southeastern Asia geochronology deformation history India-Asia collision
ISSN号1000-9515
文献子类Article
英文摘要Structural analyses show that the Ailaoshan-Red River shear zone (ASRRSZ) in Ailao Mountain is composed of three different deformational domains. These domains may represent three episodes of left-lateral slip experienced by the ASRRSZ. The first episode of such deformation occurred throughout the eastern high-grade belt of the ASRRSZ under a transtensional regime and produced L-type tectonites of amphibolite grade. The second episode of left-lateral slip formed high strain zones overprinting the high-grade belt. Its deformational mechanism is similar to simple shear and the deformed rocks are L-S mylonites of greenschist grade. The third episode of left-lateral slip took place chiefly in a western low-grade belt of the ASRRSZ. This deformation occurred in a transpressional regime, formed an overall structure pattern of a sinistral thrust system and produced phyllonites of low-greenschist grade. Geochronological data indicated that the three episodes of left-lateral slip happened before similar to 58-56 Ma, at least from similar to 27 Ma to 22 Ma and at similar to 13-12 Ma respectively. The first episode of slip in the ASRRSZ appeared to correspond to the initial collision of India and Asia at similar to 60 Ma. The second episode took place almost at the same time as the most intensive compression and uplift in Tibet. The latest event might represent a further eastward material flow in Tibet after similar to 16-13 Ma. Thus, the ASRRSZ of southeastern Asia probably experienced three main episodes of Tertiary left-lateral slip in the course of intracontinental convergence since the India-Asia collision.
WOS关键词INDIA-EURASIA COLLISION ; SOUTH-CHINA-SEA ; EASTERN HIMALAYAN SYNTAXIS ; TIBETAN PLATEAU ; TECTONIC EVOLUTION ; METAMORPHIC BELT ; FAULT SYSTEM ; MYR AGO ; SHAN ; UPLIFT
WOS研究方向Geology
语种英语
WOS记录号WOS:000235927100011
出版者GEOLOGICAL SOC CHINA
源URL[http://ir.iggcas.ac.cn/handle/132A11/66584]  
专题中国科学院地质与地球物理研究所
作者单位1.Peking Univ, Sch Earth & Space Sci, Beijing 100871, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
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GB/T 7714
Zhang, JJ,Zhong, DL,Sang, HQ,et al. Structural and geochronological evidence for multiple episodes of tertiary deformation along the Ailaoshan-Red River shear zone, southeastern Asia, since the Paleocene[J]. ACTA GEOLOGICA SINICA-ENGLISH EDITION,2006,80(1):79-96.
APA Zhang, JJ,Zhong, DL,Sang, HQ,&Zhou, Y.(2006).Structural and geochronological evidence for multiple episodes of tertiary deformation along the Ailaoshan-Red River shear zone, southeastern Asia, since the Paleocene.ACTA GEOLOGICA SINICA-ENGLISH EDITION,80(1),79-96.
MLA Zhang, JJ,et al."Structural and geochronological evidence for multiple episodes of tertiary deformation along the Ailaoshan-Red River shear zone, southeastern Asia, since the Paleocene".ACTA GEOLOGICA SINICA-ENGLISH EDITION 80.1(2006):79-96.

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来源:地质与地球物理研究所

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