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. 中国科学院矿产资源研究重点实验室
Large-scale Permo-Triassic back-arc extensions of the Mongol-Okhotsk Ocean

文献类型：期刊论文

作者Zhu, Mingshuai2,3; Wakabayashi, John4; Pastor-Galan, Daniel1,7; Zhang, Fuqin2,3; Ganbat, Ariuntsetseg6,8; Miao, Laicheng2,3; Yang, Shunhu2,3; Wang, Zeli5
刊名GEOLOGICAL SOCIETY OF AMERICA BULLETIN
出版日期2023-09-01
卷号135期号:9-10页码:2563-2574
ISSN号0016-7606
DOI10.1130/B36644.1
英文摘要The Late Paleozoic-Mesozoic Mongol-Okhotsk orogenic belt marks the final aggregation of East Asia. The geodynamics of the Mongol-Okhotsk oceanic plate subduction are still poorly understood due to its curved orogenic architecture, complex kinematics, and the protracted active continent margin that developed during oceanic subduction. Here, we report the discovery of an ophiolite within the southern paleo-active margin of the Mongol-Okhotsk orogenic belt. The ophiolitic slices are composed of serpentinites, metagabbros, and metabasalts, and interleaved with deformed volcaniclastic rocks. Using zircon U-Pb dating, we determined an age of 253 +/- 2 Ma for the metagabbro, which suggests that the ophiolite formed during the Late Permian. Geochemical data and geologic relationships indicate that this ophiolite formed in a back-arc setting. The contemporaneous granitic dikes (ca. 255 Ma) intruding the basalts of the ophiolite were likely formed by crustal anatexis during the back-arc extension. Detrital zircon in sandstone associated with the ophiolite shows a prominent peak age of ca. 273 Ma that probably represents the sediments of the back-arc basin. Combining our discovery with the available data from the literature, we suggest that a >5000-km-long back-arc extension belt existed in the southwestern segment of the Mongol-Okhotsk belt, which indicates a probable Western Pacific-type active margin rather than the previously proposed Andean-type margin that formed during the Permo-Triassic period.
WOS关键词NE CHINA CONSTRAINTS ; A-TYPE GRANITOIDS ; S-TYPE GRANITES ; U-PB AGES ; TECTONIC EVOLUTION ; VOLCANIC-ROCKS ; CONTINENTAL-MARGIN ; SUBDUCTION ZONES ; NORTHEASTERN MONGOLIA ; TRANSBAIKALIAN BELT
资助项目Strategic Priority Research Program of the Chinese Academy of Sciences[XDB 41000000] ; National Natural Science Foundation of China[42272262] ; National Natural Science Foundation of China[42172241]
WOS研究方向Geology
语种英语
出版者GEOLOGICAL SOC AMER, INC
WOS记录号WOS:001101571800021
资助机构Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/111170]  
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.Tohoku Univ, Frontier Res Inst Interdisciplinary Sci, Sendai, Miyagi 9800845, Japan
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China
3.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China
4.Calif State Univ, Dept Earth & Environm Sci, Fresno, CA 93740 USA
5.Shandong Univ Sci & Technol, Shandong Key Lab Deposit Mineralizat & Sedimentar, Qingdao 266590, Peoples R China
6.Univ Hong Kong, Lab Space Res, Cyberport 4, Hong Kong, Peoples R China
7.Univ Granada, Dept Geodynam, Campus Fuentenueva, Granada 18071, Spain
8.Univ Hong Kong, Dept Earth Sci, Cyberport 4, Hong Kong, Peoples R China
推荐引用方式
GB/T 7714		 Zhu, Mingshuai,Wakabayashi, John,Pastor-Galan, Daniel,et al. Large-scale Permo-Triassic back-arc extensions of the Mongol-Okhotsk Ocean[J]. GEOLOGICAL SOCIETY OF AMERICA BULLETIN,2023,135(9-10):2563-2574.
APA Zhu, Mingshuai.,Wakabayashi, John.,Pastor-Galan, Daniel.,Zhang, Fuqin.,Ganbat, Ariuntsetseg.,...&Wang, Zeli.(2023).Large-scale Permo-Triassic back-arc extensions of the Mongol-Okhotsk Ocean.GEOLOGICAL SOCIETY OF AMERICA BULLETIN,135(9-10),2563-2574.
MLA Zhu, Mingshuai,et al."Large-scale Permo-Triassic back-arc extensions of the Mongol-Okhotsk Ocean".GEOLOGICAL SOCIETY OF AMERICA BULLETIN 135.9-10(2023):2563-2574.

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。