Cenozoic clockwise rotation of the northeastern Tibetan Plateau: Paleomagnetic evidence from volcanic sequences in the West Qinling Mountain
文献类型：期刊论文
| 作者 | Wang, Weitao1,4; Huang, Rong1,4; Wu, Ying2; Liu, Kang1,4; Zhang, Zhuqi2; Zhang, Yipeng1,4; Liu, Caicai2; Zheng, Dewen2,3; Zhang, Peizhen1,4 |
| 刊名 | GLOBAL AND PLANETARY CHANGE
 |
| 出版日期 | 2023-05-01 |
| 卷号 | 224页码:14 |
| 关键词 | West Qinling Mountain Tectonic rotation K-Ar Paleomagnetism |
| ISSN号 | 0921-8181 |
| DOI | 10.1016/j.gloplacha.2023.104097 |
| 英文摘要 | Vertical-axis rotations recorded by paleomagnetic results from the northeastern Tibetan Plateau afford new insights into the tectonic processes related to the growth of the Tibetan Plateau. Here, geochronological and paleomagnetic investigations on the Cretaceous-Tertiary basalt sequences within the West Qinling Mountain were conducted to decipher the vertical-axis rotations of the northeastern Tibetan Plateau. Potassium-argon (K-Ar) results from the basaltic rocks reveal two time episodes of extrusive volcanism, 123-90 Ma and 21-15 Ma. Comparisons between the obtained paleomagnetic data and the equivalent age-expected directions of the Eurasia and the North China block respectively, indicate that 10-20 degrees clockwise rotation occurred in the West Qinling Mountain only after similar to 15 Ma. Combined with the previous estimation of Eocene clockwise rotation in the Xining-Lanzhou region north of the West Qinling Mountain, we conclude that two-stage clockwise tectonic rotation occurred in different parts of the northeastern Tibetan Plateau, related to different deformational kinematics. The Eocene-clockwise rotation was likely in response to N-S trending normal faulting, suggesting that inboard extension in East Asia drove the rotation within the outmost region of the Tibetan Plateau. In contrast, the mid-Miocene clockwise rotation was linked to crustal right lateral shear in the northeastern corner of the Tibetan Plateau when the plateau grew to its northern margins. |
| WOS研究方向 | Physical Geography ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000981478700001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/74179]  |
| 专题 | 中国科学院广州地球化学研究所 |
| 通讯作者 | Wang, Weitao |
| 作者单位 | 1.Southern Lab Ocean Sci & Engn, Zhuhai 519082, Guangdong, Peoples R China 2.China Earthquake Adm, Inst Geol, State Key Lab Earthquake Dynam, Beijing 100029, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China 4.Sun Yat Sen Univ, Sch Earth Sci & Engn, Guangdong Prov Key Lab Geodynam & Geohazards, Zhuhai 519082, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Weitao,Huang, Rong,Wu, Ying,et al. Cenozoic clockwise rotation of the northeastern Tibetan Plateau: Paleomagnetic evidence from volcanic sequences in the West Qinling Mountain[J]. GLOBAL AND PLANETARY CHANGE,2023,224:14. |
| APA | Wang, Weitao.,Huang, Rong.,Wu, Ying.,Liu, Kang.,Zhang, Zhuqi.,...&Zhang, Peizhen.(2023).Cenozoic clockwise rotation of the northeastern Tibetan Plateau: Paleomagnetic evidence from volcanic sequences in the West Qinling Mountain.GLOBAL AND PLANETARY CHANGE,224,14. |
| MLA | Wang, Weitao,et al."Cenozoic clockwise rotation of the northeastern Tibetan Plateau: Paleomagnetic evidence from volcanic sequences in the West Qinling Mountain".GLOBAL AND PLANETARY CHANGE 224(2023):14. |
入库方式： OAI收割
来源：广州地球化学研究所
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。