New Silurian and Devonian palaeomagnetic results from the Hexi Corridor terrane, northwest China, and their tectonic implications
文献类型：期刊论文
| 作者 | Huang, BC; Otofuji, Y; Yang, ZY; Zhu, RX |
| 刊名 | GEOPHYSICAL JOURNAL INTERNATIONAL
 |
| 出版日期 | 2000 |
| 卷号 | 140期号:1页码:132-146 |
| 关键词 | Devonian North China Block palaeomagnetism Silurian |
| ISSN号 | 0956-540X |
| 文献子类 | Article |
| 英文摘要 | A total of 239 orientated drill-core samples from 23 sites were collected for palaeomagnetic study from Silurian and Devonian red beds, marlaceous sandstone, and limestone rocks in the eastern part of the Hexi Corridor, southwest Ningxia, North China. The characteristic high-temperature component resides in both haematite and magnetite. It clusters around a northwesterly and shallow to moderate downward direction and its antipode after tilt correction. The primary origin of this characteristic remanent magnetization (ChRM) is ascertained by positive fold and reversal tests at the 95 per cent confidence level. The corresponding palaeopoles, at 339.0 degrees E, 60.1 degrees N with A(95) = 11.2 degrees (Silurian) and 336.0 degrees E, 56.0 degrees N with A(95) = 9.2 degrees (Devonian), imply that the North China Block (NCB) had a low palaeolatitude of around 15 degrees N in the Northern Hemisphere during the Silurian-Devonian period. Comparison with the Early-Middle Ordovician palaeopole of the NCB suggests that the NCB moved rapidly northwards by 30.8 degrees +/-10.9 degrees to cross the palaeo-equator during the Early-Middle Ordovician to Silurian. In combination with the palaeobiogeographical data from Ningxia, our palaeomagnetic results suggest that the NCB was located close to Australia during the Late Devonian. |
| WOS关键词 | POLAR WANDER PATH ; PALEOMAGNETIC CONSTRAINTS ; SOUTH CHINA ; FOLD TEST ; GONDWANA ; TARIM ; HISTORY |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000085367400014 |
| 出版者 | BLACKWELL SCIENCE LTD |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/75957]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Huang, BC |
| 作者单位 | 1.Chinese Acad Sci, Inst Geophys, Beijing 100101, Peoples R China 2.Kobe Univ, Fac Sci, Dept Earth & Planetary Sci, Kobe, Hyogo 6578501, Japan 3.Chinese Acad Geol Sci, Inst Geomech, Beijing 100081, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang, BC,Otofuji, Y,Yang, ZY,et al. New Silurian and Devonian palaeomagnetic results from the Hexi Corridor terrane, northwest China, and their tectonic implications[J]. GEOPHYSICAL JOURNAL INTERNATIONAL,2000,140(1):132-146. |
| APA | Huang, BC,Otofuji, Y,Yang, ZY,&Zhu, RX.(2000).New Silurian and Devonian palaeomagnetic results from the Hexi Corridor terrane, northwest China, and their tectonic implications.GEOPHYSICAL JOURNAL INTERNATIONAL,140(1),132-146. |
| MLA | Huang, BC,et al."New Silurian and Devonian palaeomagnetic results from the Hexi Corridor terrane, northwest China, and their tectonic implications".GEOPHYSICAL JOURNAL INTERNATIONAL 140.1(2000):132-146. |
入库方式： OAI收割
来源：地质与地球物理研究所
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