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Permian foraminifers from the exotic limestone blocks within the central Qiangtang Metamorphic Belt, Tibet and their geological implications

文献类型：期刊论文

作者Ju, Qi7,8,9; Zhang, Yi-chun6,8,9; Yuan, Dong-xun5; Qiao, Feng7,8,9; Xu, Hai-peng3,4; Zhang, Hua8,9; Zheng, Quan-feng8,9; Luo, Mao8,9; Qie, Wen-kun8,9; Zhai, Qing-guo2
刊名JOURNAL OF ASIAN EARTH SCIENCES
出版日期2022-11-01
卷号239页码:15
关键词Foraminifers North Qiangtang Block Paleotethys Ocean South Qiangtang Block Tectonic evolution
ISSN号1367-9120
DOI10.1016/j.jseaes.2022.105426
通讯作者Zhang, Yi-chun(yczhang@nigpas.ac.cn)
英文摘要The Central Qiangtang Metamorphic Belt (CQMB) is a subject of long-standing controversy for decades with respect to its origin and tectonic evolution. In this study, two foraminiferal faunas are reported from the exotic limestone blocks in the Jiaomuchaka and Jiangaizangbu sections within the CQMB. In total, 9 species of fusulines and 32 species of smaller foraminifers have been discovered in the Jiaomuchaka section, and 10 species of fusulines and 15 species of smaller foraminifers have been documented in the Jiangaizangbu section. In terms of the presence of the fusulines Pseudodoliolina ozawai, Presumatrina neoschwagerinoides, Neoschwagerina simplex and Afghanella sp., an age of late Kungurian to Roadian can be assigned to the faunas. A comparative study on the stratigraphic sequence and foraminiferal faunas between the exotic limestone blocks and contemporaneous deposits in the adjacent areas reveals that the exotic limestone blocks resemble strata of the Lugu Formation in the Shuanghu and Minzhuochaka areas in the South Qiangtang Block. The presence of these exotic limestone blocks within the CQMB suggests that the in-situ deposits of the Lugu Formation have been partly subducted beneath the North Qiangtang Block during the closing of the Paleotethys Ocean along the Longmu Co-Shuanghu Suture Zone.
WOS关键词NORTHERN TIBET ; PALEO-TETHYS ; FUSULINE FAUNA ; ACCRETIONARY COMPLEX ; TRIASSIC SUBDUCTION ; TECTONIC EVOLUTION ; SUTURE ZONE ; CHINA ; AREA ; GEOCHRONOLOGY
资助项目National Science Foundation of China[91855205] ; Second Tibetan Plateau Scientific Expedition and Research[2019QZKK0706] ; Strategic priority Research Program (B) of the Chinese Academy of Sciences[XDB26000000]
WOS研究方向Geology
语种英语
WOS记录号WOS:000868188300001
出版者PERGAMON-ELSEVIER SCIENCE LTD
资助机构National Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research ; Strategic priority Research Program (B) of the Chinese Academy of Sciences
源URL[http://ir.nigpas.ac.cn/handle/332004/41295]  
专题中国科学院南京地质古生物研究所
通讯作者Zhang, Yi-chun; Zhang, Yi-chun（张以春）
作者单位1.China Geol Survey, Chengdu Ctr, Southwest China Innovat Ctr Geosci, Chengdu 610081, Peoples R China
2.Chinese Acad Geol Sci, Inst Geol, Minist Nat Resources, Key Lab Deep Earth Dynam, Beijing 100037, Peoples R China
3.Nanjing Univ, Frontiers Sci Ctr Crit Earth Mat Cycling, Nanjing 210023, Peoples R China
4.Nanjing Univ, Sch Earth Sci & Engn, State Key Lab Mineral Deposits Res, Nanjing 210023, Peoples R China
5.China Univ Min & Technol, Sch Resources & Geosci, Xuzhou 221116, Peoples R China
6.Univ Chinese Acad Sci, Nanjing Coll, Nanjing 210049, Peoples R China
7.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
8.Chinese Acad Sci, Ctr Excellence Life & Palaeoenvironm, Nanjing 210008, Peoples R China
9.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China
推荐引用方式
GB/T 7714		 Ju, Qi,Zhang, Yi-chun,Yuan, Dong-xun,et al. Permian foraminifers from the exotic limestone blocks within the central Qiangtang Metamorphic Belt, Tibet and their geological implications[J]. JOURNAL OF ASIAN EARTH SCIENCES,2022,239:15.
APA Ju, Qi.,Zhang, Yi-chun.,Yuan, Dong-xun.,Qiao, Feng.,Xu, Hai-peng.,...&Luo, Mao.(2022).Permian foraminifers from the exotic limestone blocks within the central Qiangtang Metamorphic Belt, Tibet and their geological implications.JOURNAL OF ASIAN EARTH SCIENCES,239,15.
MLA Ju, Qi,et al."Permian foraminifers from the exotic limestone blocks within the central Qiangtang Metamorphic Belt, Tibet and their geological implications".JOURNAL OF ASIAN EARTH SCIENCES 239(2022):15.

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来源：南京地质古生物研究所

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