The structure of suture in orogenic belts and its tectonic implications
文献类型：期刊论文
| 作者 | Chen YiChao3; Zhang Ji'En1; Tian ZhongHua4; Yan QuanRen3; Hou QuanLin3; Xiao WenJiao1,2,3 |
| 刊名 | ACTA PETROLOGICA SINICA
 |
| 出版日期 | 2021-08-01 |
| 卷号 | 37期号:8页码:2324-2338 |
| 关键词 | Suture interface Suture Provenance study Sedimentary tectonics Subduction-collision |
| ISSN号 | 1000-0569 |
| DOI | 10.18654/1000-0569/2021.08.05 |
| 英文摘要 | A suture is a tectonic boundary that separates two plates. It varies in size and appearance in different types of orogenic belts. In this study, based on the definition of suture and suture interface, we present several examples of classic orogenic belts and discuss the deformation of the suture interface and the implications to the analysis of the tectonic framework of the orogenic belt and associated sedimentary basins. The decollement formed in the subduction stage is a high strain bond without physical thickness, and it is kept at the bottom of the accretionary complex when the collision happens. Because this surface strictly separated the basins with provenance connections to the upper and lower plates, it would be much convenient to deal with the provenance study if it is regarded as the suture interface. The ophiolitic belt, high-pressure metamorphic belt, and major fault can indicate the approximate location of a suture. Still, they cannot be regarded as the exact indicator of suture interface. The decollement was almost flat in the subduction stage, but its successor, the suture interface, can be deformed by thrust and strike-slip faults at and after the moment of collision. In classic orogenic belts such as the Alps, the Himalayas, and the Eastern Junggar, the suture interface had experienced long-distance thrust towards the foreland, coupled with folding deformation. It leads to the result that the suture interface exposed as a complicated cross-finger shape on the surface after the weathering and erosion and even expose multiple times due to the appearance of klippen and tectonic windows. The suture interface naturally exhibits Z-shape in the opposite subduction system and develops a more complicated structure after the deformation and collision. In the Sulu-Dabie orogenic belt, multiple-stage deformation, especially the strike-slipe fault that cut the whole orogenic belt and the suture interface into separate blocks, was applied to the original simple suture interface, which significantly modified the outcropped suture interface at the surface. The complex structure of the suture interface must be a serious consideration when it comes to analyzing the framework of the orogenic belt, especially with sedimentary tectonic tools. A wrong suture interface could lead to a wrong tectonic interpretation of the sedimentary basin. |
| WOS关键词 | DETRITAL ZIRCON PROVENANCE ; OCEAN PLATE STRATIGRAPHY ; CONTINENTAL GROWTH ; SEDIMENTARY BASIN ; U-PB ; EVOLUTION ; ALPS ; GEOCHRONOLOGY ; AMALGAMATION ; COLLISION |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000735639300005 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/103937]  |
| 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 | Chen YiChao |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Xinjiang Res Ctr Mineral Resources, Xinjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China 3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 4.Chinese Acad Geol Sci, Inst Geol, Beijing 100037, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen YiChao,Zhang Ji'En,Tian ZhongHua,et al. The structure of suture in orogenic belts and its tectonic implications[J]. ACTA PETROLOGICA SINICA,2021,37(8):2324-2338. |
| APA | Chen YiChao,Zhang Ji'En,Tian ZhongHua,Yan QuanRen,Hou QuanLin,&Xiao WenJiao.(2021).The structure of suture in orogenic belts and its tectonic implications.ACTA PETROLOGICA SINICA,37(8),2324-2338. |
| MLA | Chen YiChao,et al."The structure of suture in orogenic belts and its tectonic implications".ACTA PETROLOGICA SINICA 37.8(2021):2324-2338. |
入库方式： OAI收割
来源：地质与地球物理研究所
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