Palaeomagnetic investigation on Early-Middle Triassic sediments of the North China block: a new Early Triassic palaeopole and its tectonic implications
文献类型：期刊论文
| 作者 | Huang, BC; Shi, RP; Wang, YC; Zhu, RX |
| 刊名 | GEOPHYSICAL JOURNAL INTERNATIONAL
 |
| 出版日期 | 2005 |
| 卷号 | 160期号:1页码:101-113 |
| 关键词 | North China Block (Ncb) Rotation Taihang Terrane Triassic Palaeomagnetism |
| ISSN号 | 0956-540X |
| DOI | 10.1111/j.1365-246X.2005.02496.x |
| 文献子类 | Article |
| 英文摘要 | Palaeomagnetic and rock magnetic study is reported of Early-Middle Triassic terrestrial sediments from the Jiaocheng and Yushe areas, Shanxi province. Thermomagnetic analysis indicates that magnetite and haematite are the main magnetic carriers. Thermal demagnetization shows that the majority of Early Triassic specimens from the Jiaocheng area contain an intermediate-temperature component (ITC) between 500 -250degreesC and a high-temperature component (HTC) between 500-680 degreesC. The ITC has a negative fold test and might be a Cretaceous or recent overprint. The HTC contains both normal and reversed polarities with positive fold and C-level reversal tests. We interpret the HTC as primary magnetization. Unfortunately, we failed to isolate a meaningful mean direction from Middle Triassic rocks of the Yushe area. New Early Triassic palaeopole from the Jiaocheng area confirms an similar to10degrees counter-clockwise displacement of the Taihang Early Triassic palaeopoles relative to their Ordos counterparts. This study thus suggests that the North China block (NCB) has generally behaved as rigid block since the Early Triassic, but there might be an similar to9degrees counter-clockwise rotation of the Taihang terrane with respect to stable NCB in the Late Triassic. The slight rotation of the Taihang terrane does not bear significantly on what has been previously concluded concerning the Mesozoic history of the NCB-South China block (SCB) collision. However, Triassic palaeomagnetic data from stable NCB indicate that the east end of the NCB and SCB did not undergo large convergence or significant opposite latitudinal displacement after the initial contact at the end of the Late Permian. |
| WOS关键词 | POLAR WANDER PATH ; SOUTH CHINA ; FOLD TEST ; CONSTRAINTS ; COLLISION ; PROVINCE ; ROTATION ; HISTORY ; HUBEI ; ROCKS |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000225954800009 |
| 出版者 | BLACKWELL PUBLISHING LTD |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/65198]  |
| 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 | Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang, BC,Shi, RP,Wang, YC,et al. Palaeomagnetic investigation on Early-Middle Triassic sediments of the North China block: a new Early Triassic palaeopole and its tectonic implications[J]. GEOPHYSICAL JOURNAL INTERNATIONAL,2005,160(1):101-113. |
| APA | Huang, BC,Shi, RP,Wang, YC,&Zhu, RX.(2005).Palaeomagnetic investigation on Early-Middle Triassic sediments of the North China block: a new Early Triassic palaeopole and its tectonic implications.GEOPHYSICAL JOURNAL INTERNATIONAL,160(1),101-113. |
| MLA | Huang, BC,et al."Palaeomagnetic investigation on Early-Middle Triassic sediments of the North China block: a new Early Triassic palaeopole and its tectonic implications".GEOPHYSICAL JOURNAL INTERNATIONAL 160.1(2005):101-113. |
入库方式： OAI收割
来源：地质与地球物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。