Structure, kinematics and ages of transpression during strain-partitioning in the Chongshan shear zone, western Yunnan, China
文献类型：期刊论文
| 作者 | Zhang, Bo1; Zhang, Jinjiang1; Zhong, Dalai2 |
| 刊名 | JOURNAL OF STRUCTURAL GEOLOGY
 |
| 出版日期 | 2010-04-01 |
| 卷号 | 32期号:4页码:445-463 |
| 关键词 | Kinematics Geochronology Transpression Chongshan Shear Zone Western Yunnan |
| ISSN号 | 0191-8141 |
| DOI | 10.1016/j.jsg.2010.02.001 |
| 文献子类 | Article |
| 英文摘要 | The Chongshan shear zone extends from the eastern Himalayan Syntax's to the Lincang Granitic pluton in Yunnan Province, China. The structure and kinematics show that the shear zone comprises mainly of mylonitic gneiss - migmatite and schist with a dextral-dominated strike-slip motion in an N-S trending northern segment, and a sinistral strike-slip shear in NW SE trending middle and southern segments. Both were developed under a bulk, regional-scale sinistral transpression. SHRIMP and LA-ICPMS U-Pb and (40)Ar/(39)Ar dating reveal two Tertiary magmatic events along the zone, followed by younger mistral strike-slip shear. The Eocene magmatic event (c 55-38 Ma). followed by metamorphism at c. 36 Ma. happened before the strike-slip motion The strike-slip shear along the zone began c 32 Ma, which generated shear heating from 32 to 22 Ma. The (40)Ar/(39)Ar ages of syn-kinematic micas, range from 19 to 14 Ma. and indicate that the strike-slip shear continued to this time with coeval transpressional exhumation and uplift of the metamorphic rocks along the Biluoxueshan-Chongshan chain. The Chongshan zone is thus a Cenozoic shear zone, which was contemporaneous with motion on the left-lateral Mao Shan-Red River shear zone and the right-lateral Gaoligong shear zone, and should be important in accommodating the northwards movement of India during collision. During Oligocene to Miocene times, the continental block that was extruded between the Ailao Shan-Red River and Gaoligong shear zones was dismembered into at least two major fragments by the Chongshan shear zone (C) 2010 Elsevier Ltd. All rights reserved. |
| WOS关键词 | SHAN-RED-RIVER ; INDIA-ASIA COLLISION ; U-TH-PB ; STRIKE-SLIP DUPLEXES ; SE ASIA ; TECTONIC EVOLUTION ; ION MICROPROBE ; CONTINENTAL EXTRUSION ; SOUTHEAST-ASIA ; TRANSTENSION ZONES |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000279567100005 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Natural Science Foundation of China(40802050 ; National Natural Science Foundation of China(40802050 ; China Postdoctoral Science Foundation(20070420065) ; China Postdoctoral Science Foundation(20070420065) ; 40872149) ; 40872149) ; National Natural Science Foundation of China(40802050 ; National Natural Science Foundation of China(40802050 ; China Postdoctoral Science Foundation(20070420065) ; China Postdoctoral Science Foundation(20070420065) ; 40872149) ; 40872149) ; National Natural Science Foundation of China(40802050 ; National Natural Science Foundation of China(40802050 ; China Postdoctoral Science Foundation(20070420065) ; China Postdoctoral Science Foundation(20070420065) ; 40872149) ; 40872149) ; National Natural Science Foundation of China(40802050 ; National Natural Science Foundation of China(40802050 ; China Postdoctoral Science Foundation(20070420065) ; China Postdoctoral Science Foundation(20070420065) ; 40872149) ; 40872149) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/73080]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Zhang, Bo |
| 作者单位 | 1.Peking Univ, Dept Geol, Key Lab Orogen Belts & Crustal Evolut, Beijing 100871, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Bo,Zhang, Jinjiang,Zhong, Dalai. Structure, kinematics and ages of transpression during strain-partitioning in the Chongshan shear zone, western Yunnan, China[J]. JOURNAL OF STRUCTURAL GEOLOGY,2010,32(4):445-463. |
| APA | Zhang, Bo,Zhang, Jinjiang,&Zhong, Dalai.(2010).Structure, kinematics and ages of transpression during strain-partitioning in the Chongshan shear zone, western Yunnan, China.JOURNAL OF STRUCTURAL GEOLOGY,32(4),445-463. |
| MLA | Zhang, Bo,et al."Structure, kinematics and ages of transpression during strain-partitioning in the Chongshan shear zone, western Yunnan, China".JOURNAL OF STRUCTURAL GEOLOGY 32.4(2010):445-463. |
入库方式： OAI收割
来源：地质与地球物理研究所
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