Displacement and timing of left-lateral faulting in the Kunlun Fault Zone, northern Tibet, inferred from geologic and geomorphic features
文献类型：期刊论文
| 作者 | Fu, Bihong; Awata, Yasuo |
| 刊名 | JOURNAL OF ASIAN EARTH SCIENCES
 |
| 出版日期 | 2007-02-01 |
| 卷号 | 29期号:2-3页码:253-265 |
| 关键词 | left-lateral faulting displaced basement rocks pull-apart basin pressure ridge Kunlun Fault Zone northern Tibet |
| ISSN号 | 1367-9120 |
| DOI | 10.1016/j.jseaes.2006.03.004 |
| 文献子类 | Article |
| 英文摘要 | The E-W to WNW-ESE striking Kunlun Fault Zone, extending about 1600 km, is one of the large strike-slip faults in the northern Tibet, China. As a major strike-slip fault, it plays an important role on the extrusion of Tibet Plateau in accommodating northeastward shortening caused by the India-Asia convergence. However, the time of initiation left-lateral faulting of the Kunlun Fault Zone is still largely debated, ranging from the Middle to Late Triassic (240-200 Mal to early Quaternary (2 Ma). We document displaced basement rocks and geomorphic features along the Kunlun Fault Zone, based on tectono-geomorphic interpretation of satellite remote sensing images and field geologic and geomorphic observations. Our results show that the largest cumulative offset of basement rocks is likely to be 100 20 kin. Meanwhile, a series of pull-apart basins (Kusai, Xiugou and Tuosu lake basins) and pressure ridges (East Deshuiwai and Maji Snow Mountains), each 45-70 km long and similar to 8-12 km wide, are developed along the Kunlun Fault Zone, which resulted from long-term tectono-geomorphic growth since the Late Miocene or Early Pliocene. Geologic evidence indicates that the Kunlun Fault Zone had a long-term slip rate of ca. 10 mm/yr during the late Quaternary. This slip rate is similar to that shown by present-day GPS measurements. Thus, we estimate that the Kunlun Fault Zone probably began left-lateral faulting at 10 +/- 2 Ma based on a total displacement of 100 +/- 20 km, and assuming a constant long-term slip rate of ca. 10 mm/yr for several millions of years. And this timing constraint on initiation of left-lateral faulting of the Kunlun Fault Zone is consistent with widespread tectonic deformation which occurred in the Tibetan Plateau. (c) 2006 Elsevier Ltd. All rights reserved. |
| WOS关键词 | ALTYN-TAGH FAULT ; STRIKE-SLIP FAULTS ; PULL-APART BASINS ; REPEATED EARTHQUAKES ; ACTIVE DEFORMATION ; PLATEAU ; CHINA ; SYSTEM ; QUATERNARY ; EVOLUTION |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000245262700007 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/68572]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Fu, Bihong |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 2.AIST, Active Fault Res Ctr, Tsukuba, Ibaraki 3058567, Japan |
| 推荐引用方式 GB/T 7714 | Fu, Bihong,Awata, Yasuo. Displacement and timing of left-lateral faulting in the Kunlun Fault Zone, northern Tibet, inferred from geologic and geomorphic features[J]. JOURNAL OF ASIAN EARTH SCIENCES,2007,29(2-3):253-265. |
| APA | Fu, Bihong,&Awata, Yasuo.(2007).Displacement and timing of left-lateral faulting in the Kunlun Fault Zone, northern Tibet, inferred from geologic and geomorphic features.JOURNAL OF ASIAN EARTH SCIENCES,29(2-3),253-265. |
| MLA | Fu, Bihong,et al."Displacement and timing of left-lateral faulting in the Kunlun Fault Zone, northern Tibet, inferred from geologic and geomorphic features".JOURNAL OF ASIAN EARTH SCIENCES 29.2-3(2007):253-265. |
入库方式： OAI收割
来源：地质与地球物理研究所
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