Cretaceous two stage extensional tectonic in eastern Eurasia continent and its geodynamics
文献类型：期刊论文
| 作者 | Lin Wei1,2,3; Li JinYan1,2 |
| 刊名 | ACTA PETROLOGICA SINICA
 |
| 出版日期 | 2021-08-01 |
| 卷号 | 37期号:8页码:2303-2323 |
| 关键词 | Two stage extensional dome Cretaceous Eastern Eurasia continent Slab Foundering Subduction plate roll back |
| ISSN号 | 1000-0569 |
| DOI | 10.18654/1000-0569/2021.08.04 |
| 英文摘要 | The Cretaceous tectonics of the North China Craton ( NCC) and its adjacent regions were characterized by a general lithospheric extension and remarked by extensional dome structures. This makes the largest crustal scale extensional tectonic realm in the world. Based on our field and laboratory work, five extensional domains have been delineated, namely Transbaikalia-Mongol-Okhotsk, western part of NCC, eastern part of NCC and Korea, Qinling-Dabie and its neighbouring, and the interior of South China Block (SCB) , respectively. These domains are featured by a NW-SE extensional direction with intensive extensional exhumation of middle to lower crust rocks to the surface along detachment faults. Two stage extension tectonics have been suggested, which took place at ca. 130 similar to 120Ma and ca. 118 similar to 85Ma. The early stage constrains a narrow activity period, and the foundering of the lower part of the lithosphere could be a possible mechanism for this continent-scale extensional tectonics. This geodynamic model could help us to enhance the knowledge of the time, scale, and mechanism of the NCC destruction from the view of structural analysis. The timing of late-stage extensional tectonics is suggested by a lounging trend from the northeast ( Liaodong Peninsula) to the southwest ( Yuechengling massif in SW Hunan Province). The slab roll-back of westward subducted Palaeo- Pacific' or Izanagi plate may lead to this regional extension event. |
| WOS关键词 | METAMORPHIC CORE COMPLEX ; LATE MESOZOIC EXTENSION ; NORTH CHINA CRATON ; U-PB AGES ; DABIE OROGEN ; POSTCOLLISIONAL GRANITOIDS ; BAIKAL REGION ; LITHOSPHERE ; CONSTRAINTS ; MONGOLIA |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000735639300004 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/103963]  |
| 专题 | 地质与地球物理研究所_岩石圈演化国家重点实验室 |
| 通讯作者 | Lin Wei |
| 作者单位 | 1.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lin Wei,Li JinYan. Cretaceous two stage extensional tectonic in eastern Eurasia continent and its geodynamics[J]. ACTA PETROLOGICA SINICA,2021,37(8):2303-2323. |
| APA | Lin Wei,&Li JinYan.(2021).Cretaceous two stage extensional tectonic in eastern Eurasia continent and its geodynamics.ACTA PETROLOGICA SINICA,37(8),2303-2323. |
| MLA | Lin Wei,et al."Cretaceous two stage extensional tectonic in eastern Eurasia continent and its geodynamics".ACTA PETROLOGICA SINICA 37.8(2021):2303-2323. |
入库方式： OAI收割
来源：地质与地球物理研究所
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