中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地质与地球物理研究所
  3. 中国科学院地质与地球物理研究所
  4. 岩石圈演化国家重点实验室
Subduction-Induced Back-Arc Extension Versus Far-Field Stretching: Contrasting Modes for Continental Marginal Break-Up

文献类型：期刊论文

作者Yang, Shuting2; Li, Zhong-Hai2; Wan, Bo1; Chen, Ling1; Kaus, Boris J. P.3
刊名GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
出版日期2021-03-01
卷号22期号:3页码:21
DOI10.1029/2020GC009416
英文摘要Continental break-up is an ingredient of plate tectonics and the Wilson cycle. During the evolution of the Tethyan Realm since the Paleozoic, a series of ribbon-like (micro-)continents are split from the Gondwana and drifted northwards to the Eurasian continent. The initial opening of the Neo-Tethys Ocean follows a typical continental marginal break-up of Cimmeria from Gondwana, which is generally considered to be driven by subduction of the Paleo-Tethyan plate. Yet, the competition between back-arc extension and far-field stretching is matter of a long-standing debate. Therefore, the authors here present the results of systematic 2-D numerical simulations. The results reveal four types of subduction-induced continental marginal break-ups: back-arc extension, far-field stretching, double break-up, and subduction channel opening. A weak relic suture zone is a prerequisite for continental break-up and an important factor controlling the mode selection. The back-arc extension mode occurs for relatively short and shallow dipping highly viscous subducted slabs. The far-field stretching mode, on the other hand, preferably occurs for spatially long and wide subducted slabs without mid-ocean ridges. Combining the geological observations, numerical simulations and force balance analyses, the authors propose that the northward, single-sided Paleo-Tethys oceanic subduction beneath Laurasia, was most likely responsible for the far-field break-up of the Cimmerian terranes from Gondwana. This would have required both pre-existing relic suture zones and the already subducted mid-ocean ridge, which thus played an important role in the opening of the Neo-Tethys Ocean.
资助项目NSFC[91855208] ; NSFC[91855207] ; NSFC[41774108] ; Strategic Priority Research Program (B) of Chinese Academy of Sciences[XDB18000000] ; Strategic Priority Research Program (B) of Chinese Academy of Sciences[XDB42000000]
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000636360200035
出版者AMER GEOPHYSICAL UNION
资助机构NSFC ; NSFC ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; NSFC ; NSFC ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; NSFC ; NSFC ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; NSFC ; NSFC ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Strategic Priority Research Program (B) of Chinese Academy of Sciences
源URL[http://ir.iggcas.ac.cn/handle/132A11/101108]  
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Li, Zhong-Hai
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China
2.Univ Chinese Acad Sci, Key Lab Computat Geodynam, Coll Earth & Planetary Sci, Beijing, Peoples R China
3.Johannes Gutenberg Univ Mainz, Inst Geosci, Mainz, Germany
推荐引用方式
GB/T 7714		 Yang, Shuting,Li, Zhong-Hai,Wan, Bo,et al. Subduction-Induced Back-Arc Extension Versus Far-Field Stretching: Contrasting Modes for Continental Marginal Break-Up[J]. GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS,2021,22(3):21.
APA Yang, Shuting,Li, Zhong-Hai,Wan, Bo,Chen, Ling,&Kaus, Boris J. P..(2021).Subduction-Induced Back-Arc Extension Versus Far-Field Stretching: Contrasting Modes for Continental Marginal Break-Up.GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS,22(3),21.
MLA Yang, Shuting,et al."Subduction-Induced Back-Arc Extension Versus Far-Field Stretching: Contrasting Modes for Continental Marginal Break-Up".GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS 22.3(2021):21.

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。