Paleomagnetic constraints on neotectonic deformation in the Kashi depression of the western Tarim Basin, NW China
文献类型：期刊论文
| 作者 | Huang, Baochun1; Piper, John D. A.2; Zhu, Rixiang1 |
| 刊名 | INTERNATIONAL JOURNAL OF EARTH SCIENCES
 |
| 出版日期 | 2009-09-01 |
| 卷号 | 98期号:6页码:1469-1488 |
| 关键词 | Tarim Kashi depression Neogene Neotectonic deformation Paleomagnetism Tectonic rotation Talas-Ferghana Fault Central Asia |
| ISSN号 | 1437-3254 |
| DOI | 10.1007/s00531-008-0401-5 |
| 文献子类 | Article |
| 英文摘要 | A paleomagnetic study is reported of Eocene to Pliocene formations from the Kashi depression, which aims to constrain the pattern of neotectonic deformation within the western sector of the Tarim Basin in northwest China. With the exception of Pliocene specimens from one locality (East Kulukeqiati) which show large within site-mean variations in declination, most sites from five sampled formations yield well-grouped characteristic remanent magnetizations and positive fold tests and are of probable post-depositional detrital origin. First-order consistency of paleomagnetic results from a range of rock ages and localities demonstrates that only small inter-locational vertical-axis rotation has occurred here and indicates that the Kashi depression is decoupled from the remainder of Tarim to the east and has behaved as a quasi-rigid block which has rotated by 20-30 degrees counterclockwise relative to Eurasia and North China since the late Pliocene. The crustal-scale Talas-Ferghana Fault cuts the Tian Shan and meets the Kashi depression in the region immediately to the northwest of the study region and we find no paleomagnetic evidence for differential rotations to suggest that this fault zone extends southwards across the Kashi depression to link with the North Pamir Thrust Fault (NPTF). Instead, we argue that the southern extension of this zone is a transform-orogen junction with southward motion of the eastern wall accommodated by southward thrusting at the margins of the south Tian Shan and the Tarim Basin. We propose that dextral transpression around the margins of the crustal block incorporating the Kashi depression was responsible for the contrasting amounts of thrusting on the NPTF in the southwest and the South Tian Shan Thrust Fault in the north. Extensive evidence for neotectonism in the bordering zones of this block, as well as some paleomagnetic evidence from low unblocking temperature components, indicates that the deformation produced by block rotation is ongoing. |
| WOS关键词 | DAY CRUSTAL DEFORMATION ; VERTICAL-AXIS ROTATION ; INDIA-ASIA COLLISION ; TALAS-FERGHANA FAULT ; ALTYN-TAGH FAULT ; TIAN-SHAN RANGE ; TIEN-SHAN ; CENOZOIC TECTONICS ; NORTHWEST CHINA ; TRANSITION ZONE |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000269376400016 |
| 出版者 | SPRINGER |
| 资助机构 | National NSF of China(40525013 ; National NSF of China(40525013 ; National Basic Research Program of China(2007CB411306) ; National Basic Research Program of China(2007CB411306) ; 40221402) ; 40221402) ; National NSF of China(40525013 ; National NSF of China(40525013 ; National Basic Research Program of China(2007CB411306) ; National Basic Research Program of China(2007CB411306) ; 40221402) ; 40221402) ; National NSF of China(40525013 ; National NSF of China(40525013 ; National Basic Research Program of China(2007CB411306) ; National Basic Research Program of China(2007CB411306) ; 40221402) ; 40221402) ; National NSF of China(40525013 ; National NSF of China(40525013 ; National Basic Research Program of China(2007CB411306) ; National Basic Research Program of China(2007CB411306) ; 40221402) ; 40221402) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/71194]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Huang, Baochun |
| 作者单位 | 1.Chinese Acad Sci, Paleomagnetism & Geochronol Lab, State Key Lab Lithospher Evolut, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Univ Liverpool, Geomagnetism Lab, Dept Earth & Ocean Sci, Liverpool L69 7ZE, Merseyside, England |
| 推荐引用方式 GB/T 7714 | Huang, Baochun,Piper, John D. A.,Zhu, Rixiang. Paleomagnetic constraints on neotectonic deformation in the Kashi depression of the western Tarim Basin, NW China[J]. INTERNATIONAL JOURNAL OF EARTH SCIENCES,2009,98(6):1469-1488. |
| APA | Huang, Baochun,Piper, John D. A.,&Zhu, Rixiang.(2009).Paleomagnetic constraints on neotectonic deformation in the Kashi depression of the western Tarim Basin, NW China.INTERNATIONAL JOURNAL OF EARTH SCIENCES,98(6),1469-1488. |
| MLA | Huang, Baochun,et al."Paleomagnetic constraints on neotectonic deformation in the Kashi depression of the western Tarim Basin, NW China".INTERNATIONAL JOURNAL OF EARTH SCIENCES 98.6(2009):1469-1488. |
入库方式： OAI收割
来源：地质与地球物理研究所
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