Integrative Permian stratigraphy, biotas, paleogeographical and paleoclimatic evolutions of the Qinghai-Tibetan Plateau and its surrounding areas
文献类型：期刊论文
| 作者 | Shen, Shuzhong1,2 ; Zhang, Yichun3,4; Yuan, Dongxun5; Xu, Haipeng1,2; Ju, Qi1,2; Zhang, Hua3; Zheng, Quanfeng3; Luo, Mao3; Hou, Zhangshuai1,2
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| 刊名 | SCIENCE CHINA-EARTH SCIENCES
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| 出版日期 | 2023-09-01 |
| 页码 | 45 |
| ISSN号 | 1674-7313 |
| 关键词 | Permian Tethys Ocean Qinghai-Tibetan Plateau Biotas Paleogeography |
| DOI | 10.1007/s11430-023-1126-3 |
| 通讯作者 | Shen, Shuzhong(szshen@nju.edu.cn) |
| 英文摘要 | The Permian Period was a critical time interval during which various blocks of the Qinghai-Tibetan Plateau have experienced profound and complex paleogeographical changes. The supercontinent Pangea was formed to its maximum during this interval, hampering a global east-to-west trending equatorial warm ocean current. Meanwhile, a semi-closed Tethys Ocean warm pool formed an eastward-opening oceanic embayment of Pangea, and became an engine fostering the evolutions of organisms and environmental changes during the Paleozoic-Mesozoic transition. Stratigraphy and preserved fossil groups have proved extremely useful in understanding such changes and the evolutionary histories of the Qinghai-Tibetan Plateau. Widely distributed Permian deposits and fossils from various blocks of the Qinghai-Tibetan Plateau exhibited varied characteristics, reflecting these blocks' different paleolatitude settings and drifting histories. The Himalaya Tethys Zone south to the Yarlung Zangbo suture zone, located in the northern Gondwanan margin, yields fossil assemblages characterized by cold-water organisms throughout the Permian, and was affliated to those of the Gondwanaland. Most of the exotic limestone blocks within the Yarlung Zangbo suture zone are Guadalupian (Middle Permian) to Early Triassic in age. These exotic limestone blocks bear fossil assemblages that have transitional affinities between the warm Tethys and cold Gondwanan regions, suggesting that they most probably represent seamount deposits in the Neo-Tethys Ocean. During the Asselian to Sakmarian (Cisuralian, also Early Permian), the Cimmerian microcontinents in the northern part of Gondwana preserved glacio-marine deposits of Asselian to Sakmarian, and contained typical Gondwana-type cold-water faunas. By the middle Cisuralian (& SIM;290-280 Ma), the Cimmerian microcontinents rifted off from the Gondwanaland, and drifted northward allometrically due to the active magmatism of the Panjal Traps in the northern margin of the Indian Plate. Two slices of microcontinents are discerned as a result of such allometic drifting. The northern Cimmerian microcontinent slice, consisting of South Qiangtang, Baoshan, and Sibuma blocks, drifted relatively quickly, and preserved widespread carbonate deposits and warm-water faunas since Artinskian. By contrast, the southern Cimmerian microcontinent slice, consisting of Lhasa, Tengchong, and Irrawaddy blocks, drifted relatively slowly, and were characterized by widespread carbonate deposits containing warm-water faunas of late Kungurian to Lopingian (Late Permian). As such, these blocks rifted off from the northern Gondwanan margin since at least the Kungurian. Thus, it can be inferred that these blocks were incorperated into the low latitude, warm-water regions later than the northern Cimmerian slice. Such discrepancies in depositional sequences and paleobiogeography imply that the rifting of Cimmerian microcontinents resulted in the formation of both Meso-Tethys and Neo-Tethys oceans during the Cisuralian. By contrast, the North Qiangtang block, because of its further northern paleogeographical position, contains warm-water faunas throughout the whole Permian Period that are affiliated well with the faunas from the South China, Simao, and Indochina blocks. Together, these blocks belonged to the members of the northern Paleo-Tethys Ocean. Thus, an archipelagic paleogeographical framework divided by Paleo-, Meso-, and Neo-Tethys oceans was formed, fostering a global biodiversity centre within the Tethys warm pool. Since most of the allochthonous blocks assembling the Qinghai-Tibetan Plateau were situated in the middle to high latitude regions during the Permian, they preserved most sensitive paleoclimate records of the Late Paleozoic Ice Age (LPIA), the Artinskian global warming event, and the rapid warming event at the end-Permian. Therefore, sedimentological and paleontological records of these blocks are the unique window through which we can understand global evolutions of tectonic movement and paleoclimate, and their impacts on spatiotemporal distributions of comtemporaneous biotas. |
| WOS关键词 | ZIRCON U-PB ; SELONG XISHAN SECTION ; CENTRAL LHASA BLOCK ; TRIASSIC BOUNDARY SECTION ; YARLUNG-ZANGBO SUTURE ; WESTERN YUNNAN ; BAOSHAN BLOCK ; BRACHIOPOD FAUNA ; SOUTHERN TIBET ; FUSULINE FAUNA |
| 资助项目 | Second Tibetan Plateau Scientific Expedition and Research[42261144668] ; Second Tibetan Plateau Scientific Expedition and Research[42293280] ; Second Tibetan Plateau Scientific Expedition and Research[XDB26000000] ; National Natural Science Foundation of China ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; [2019QZKK0706] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| 出版者 | SCIENCE PRESS |
| WOS记录号 | WOS:001060260700001 |
| 资助机构 | Second Tibetan Plateau Scientific Expedition and Research ; National Natural Science Foundation of China ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences |
| 源URL | [http://ir.nigpas.ac.cn/handle/332004/42692]  |
| 专题 | 中国科学院南京地质古生物研究所 |
| 通讯作者 | Shen, Shuzhong |
| 作者单位 | 1.Nanjing Univ, Sch Earth Sci & Engn, State Key Lab Mineral Deposits Res, Nanjing 210023, Peoples R China 2.Nanjing Univ, Frontiers Sci Ctr Crit Earth Mat Cycling, Nanjing 210023, Peoples R China 3.Chinese Acad Sci, State Key Lab Palaeobiol & Stratig, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China 4.Univ Chinese Acad Sci, Nanjing 210049, Peoples R China 5.China Univ Min & Technol, Sch Resources & Geosci, Xuzhou 221116, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shen, Shuzhong,Zhang, Yichun,Yuan, Dongxun,et al. Integrative Permian stratigraphy, biotas, paleogeographical and paleoclimatic evolutions of the Qinghai-Tibetan Plateau and its surrounding areas[J]. SCIENCE CHINA-EARTH SCIENCES,2023:45. |
| APA | Shen, Shuzhong.,Zhang, Yichun.,Yuan, Dongxun.,Xu, Haipeng.,Ju, Qi.,...&Hou, Zhangshuai.(2023).Integrative Permian stratigraphy, biotas, paleogeographical and paleoclimatic evolutions of the Qinghai-Tibetan Plateau and its surrounding areas.SCIENCE CHINA-EARTH SCIENCES,45. |
| MLA | Shen, Shuzhong,et al."Integrative Permian stratigraphy, biotas, paleogeographical and paleoclimatic evolutions of the Qinghai-Tibetan Plateau and its surrounding areas".SCIENCE CHINA-EARTH SCIENCES (2023):45. |
入库方式： OAI收割
来源：南京地质古生物研究所
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