Paleomagnetic data from early cretaceous volcanic rocks of west liaoning: Evidence for intracontinental rotation
文献类型：期刊论文
| 作者 | Zhu, RX; Shao, JA; Pan, YX; Shi, RP; Shi, GH; Li, DM |
| 刊名 | CHINESE SCIENCE BULLETIN
 |
| 出版日期 | 2002-11-01 |
| 卷号 | 47期号:21页码:1832-1837 |
| 关键词 | cretaceous paleomagnetism geodynamics |
| ISSN号 | 1001-6538 |
| 文献子类 | Article |
| 英文摘要 | Detailed rock magnetic studies of 55 lavas from Yixian and Fuxin area, West Liaoning, show the primary carriers of remanence to be pseudo-single domain titanomagnetite. K/Ar dating indicates that the volcanic sequence spans 93 to 133 Ma. Stepwise thermal demagnetization successfully isolated well-defined characteristic magnetization (ChRM) in all lavas thermal-treated above 250degreesC. The mean paleodirections are D/I = 5.9degrees/58.8degrees (alpha(95) = 2.9degrees) and D/I =179.2degrees/-59.9degrees (alpha(95) = 5.2degrees) for 27 normally magnetized flows and 28 reversibly magnetized flows, respectively. It indicates that since the Early Cretaceous there is no significant horizontal movement and rotation between the Yixian-Fuxin area and Eurasia. However, Korea Peninsula may have undergone a clockwise rotation of 33.9degrees relative to the Yixian-Fuxin area during the Cretaceous. On the basis of characteristics of hotspot origins (core-mantle boundary or upper mantle), the clockwise rotation of Korea Peninsula relative to Eurasia is assumed to be mainly caused by an extensional force in the crust of eastern China, which was corresponding to intensive surface volcanic activities in this area. |
| WOS关键词 | NORTH CHINA ; COLLISION ; BLOCK |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000178754200016 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/77443]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Zhu, RX |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100101, Peoples R China 2.Peking Univ, Dept Geol, Beijing 100871, Peoples R China 3.Chinese Seismol Bur, Inst Geol, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu, RX,Shao, JA,Pan, YX,et al. Paleomagnetic data from early cretaceous volcanic rocks of west liaoning: Evidence for intracontinental rotation[J]. CHINESE SCIENCE BULLETIN,2002,47(21):1832-1837. |
| APA | Zhu, RX,Shao, JA,Pan, YX,Shi, RP,Shi, GH,&Li, DM.(2002).Paleomagnetic data from early cretaceous volcanic rocks of west liaoning: Evidence for intracontinental rotation.CHINESE SCIENCE BULLETIN,47(21),1832-1837. |
| MLA | Zhu, RX,et al."Paleomagnetic data from early cretaceous volcanic rocks of west liaoning: Evidence for intracontinental rotation".CHINESE SCIENCE BULLETIN 47.21(2002):1832-1837. |
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。