The geodynamic mechanism for the formation of Mongol -Okhotsk orcocline
文献类型：期刊论文
| 作者 | Zhu MingShuai2,3,4; Luo Ye2,3,4; Jia ChaoYuan2,3,4; Miao LaiCheng2,3,4; Zhang FuQin2,3,4; Sanchir, Dorjgochoo2,3,4; Yu JianFeng1 |
| 刊名 | ACTA PETROLOGICA SINICA
 |
| 出版日期 | 2023-11-01 |
| 卷号 | 39期号:11页码:3447-3460 |
| ISSN号 | 1000-0569 |
| 关键词 | Mongol -Okhotsk Orocline Back -arc extension Slab roll -back |
| DOI | 10.18654/1000-0569/2023.11.14 |
| 英文摘要 | The Mongol -Okhotsk orogenic belt extends to the northeast from Central Mongolia as far as the Uda Gulf in the Okhotsk Sea, and it is likely formed from the closure of the Mongol -Okhotsk Ocean during Jurassic -Cretaceous. Thus, the reconstruction of the Mongol -Okhotsk orogenic belt played a crucial role in the tectonic evolution of the Northeast Asia and the final amalgamation of the Eurasia during the Mesozoic. The Mongol -Okhotsk orogenic belt is characterized by the development of a U-shaped oroclinal structure, and its buckling has led to a strong " self-collision" between its two wings. In previous tectonic models, the formation of Mongol Okhotsk oroclinal structure was attributed to either buckling of a long ribbon-like system due to the convergence of the Siberian and Tarim cratons, roll -back of the Paleo-Asian Ocean and the relative rotation of the North China and Siberian cratons, but has ignored the effect of the subduction of the Mongol -Okhotsk Ocean. Recently, structural observation around the hinge of the orocline and magmatic migration indicates that rollback of the subducted Mongol -Okhotsk Ocean plate could contribute to the development of the orocline, but this model is conceptual and not well constrained by geological data. The back -arc ophiolite, bimodal volcanic suite, A2 -type and S type granites and associated sediments surrounding the Mongol -Okhotsk orocline indicate that a > 5000 -km -long multistage back -arc extension belt existed in the southwestern segment of the Mongol -Okhotsk orogenic belt related to the rollback of the Mongol -Okhotsk oceanic plate during Permo-Triassic Period. The identification of the back -arc extension belt suggests a probable Western Pacific -type active margin rather than the previously proposed Andean -type margin during the Permo-Triassic Period. The 5000 -km -long multistage back -arc extension developed during the major phase of Mongol -Okhotsk oroclinal bending ( Permo-Triassic), indicating the rollback of the Mongol -Okhotsk oceanic plate probably play an important role for the formation of the Mongol -Okhotsk orocline. |
| WOS关键词 | A-TYPE GRANITOIDS ; BACKARC EXTENSION ; SHEAR ZONE ; EVOLUTION ; OCEAN ; COLLISION ; MODELS ; CURVATURE ; DYNAMICS ; INSIGHTS |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| 出版者 | SCIENCE PRESS |
| WOS记录号 | WOS:001097943000014 |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/111151]  |
| 专题 | 地质与地球物理研究所_中国科学院矿产资源研究重点实验室 |
| 通讯作者 | Zhu MingShuai |
| 作者单位 | 1.Shandong 3 Explorat Inst Geol & Mineral Resources, Yantai 264000, Peoples R China 2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu MingShuai,Luo Ye,Jia ChaoYuan,et al. The geodynamic mechanism for the formation of Mongol -Okhotsk orcocline[J]. ACTA PETROLOGICA SINICA,2023,39(11):3447-3460. |
| APA | Zhu MingShuai.,Luo Ye.,Jia ChaoYuan.,Miao LaiCheng.,Zhang FuQin.,...&Yu JianFeng.(2023).The geodynamic mechanism for the formation of Mongol -Okhotsk orcocline.ACTA PETROLOGICA SINICA,39(11),3447-3460. |
| MLA | Zhu MingShuai,et al."The geodynamic mechanism for the formation of Mongol -Okhotsk orcocline".ACTA PETROLOGICA SINICA 39.11(2023):3447-3460. |
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。