Cenozoic tectonic rotations in different parts of the NE Pamir: implications for the evolution of the arcuate orogen
文献类型：期刊论文
| 作者 | Zhang, Zhiliang3; Sun, Jimin1,2,3 |
| 刊名 | INTERNATIONAL JOURNAL OF EARTH SCIENCES
 |
| 出版日期 | 2020-09-01 |
| 卷号 | 109期号:6页码:1921-1939 |
| 关键词 | Paleomagnetism Tectonic rotation Pamir Curved orogen Tarim Basin |
| ISSN号 | 1437-3254 |
| DOI | 10.1007/s00531-020-01880-2 |
| 英文摘要 | The Pamir salient, defining the NW end of the Himalayan-Tibetan orogen, is a prominent curved orogen as a response to the Indian-Eurasian collision. Its evolution history is essential for understanding intracontinental tectonic processes in the context of continental collision. In this study, we carry out systematic paleomagnetic studies on four sections in different parts of the NE Pamir to unravel the tectonic evolution of the curved orogen. Our new results from the Oytag section suggest that the clockwise (CW) rotations of the eastern Pamir salient mainly occurred in the Oligocene (~ 32-26 Ma) as a response to the northward indentation of the Pamir salient and was dominated by large-scale dextral strike-slip faults since then. Additionally, the final collision between Pamir and SW Tian Shan in the latest Miocene reactivated the dextral Talas-Ferghana Fault (TFF), thus be responsible for the counter-clockwise (CCW) rotations at Ulugqat. However, the limited tectonic rotations of the Keliyang and Sanju sections can be explained by the dominant thrust faulting in the foreland of the West Kunlun Mountains. Combined with the existing paleomagnetic data around the Pamir salient, our results support a four-stage evolution: (1) a roughly linear orogen before the early Eocene; (2) symmetric rotations on both sides until the latest Oligocene followed by (3) asymmetric geometries with continued radial thrusting on the western flank and large-scale strike-slip fault on the eastern flank; and (4) final collision between the Pamir salient and SW Tian Shan in the late Miocene. |
| WOS关键词 | VERTICAL-AXIS ROTATION ; CHUAN-DIAN FRAGMENT ; WESTERN TARIM BASIN ; KYRGYZ TIEN-SHAN ; TIAN-SHAN ; TIBETAN PLATEAU ; THRUST BELT ; RED-BEDS ; PALEOMAGNETIC CONSTRAINTS ; KINEMATIC EVOLUTION |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000558011500003 |
| 出版者 | SPRINGER |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/97613]  |
| 专题 | 地质与地球物理研究所_中国科学院新生代地质与环境重点实验室 |
| 通讯作者 | Zhang, Zhiliang; Sun, Jimin |
| 作者单位 | 1.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Key Lab Cenozo Geol & Environm, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Zhiliang,Sun, Jimin. Cenozoic tectonic rotations in different parts of the NE Pamir: implications for the evolution of the arcuate orogen[J]. INTERNATIONAL JOURNAL OF EARTH SCIENCES,2020,109(6):1921-1939. |
| APA | Zhang, Zhiliang,&Sun, Jimin.(2020).Cenozoic tectonic rotations in different parts of the NE Pamir: implications for the evolution of the arcuate orogen.INTERNATIONAL JOURNAL OF EARTH SCIENCES,109(6),1921-1939. |
| MLA | Zhang, Zhiliang,et al."Cenozoic tectonic rotations in different parts of the NE Pamir: implications for the evolution of the arcuate orogen".INTERNATIONAL JOURNAL OF EARTH SCIENCES 109.6(2020):1921-1939. |
入库方式： OAI收割
来源：地质与地球物理研究所
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