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Permanent closure of the Tethyan Seaway in the northwestern Iranian Plateau driven by cyclic sea-level fluctuations in the late Middle Miocene

文献类型：期刊论文

作者Sun, Jimin6,7,8; Sheykh, Morteza5; Ahmadi, Nahid5; Cao, Mengmeng6,8; Zhang, Zhiliang8; Tian, Shengchen8; Sha, Jingeng4; Jian, Zhimin3; Windley, Brian F.2; Talebian, Morteza1
刊名PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
出版日期2021-02-15
卷号564页码:18
ISSN号0031-0182
关键词Zagros foreland Ocean gateway Neogene Eustasy Paleoenvironment
DOI10.1016/j.palaeo.2020.110172
通讯作者Sun, Jimin(jmsun@mail.iggcas.ac.cn)
英文摘要The opening and closure of marine gateways have been suggested to substantially affect ocean current circulations and global climatic changes. In the Miocene, the closure of the Tethyan Seaway, which connected the proto-Mediterranean Sea with the Indian and Atlantic Oceans, blocked thermohaline exchanges between them and possibly caused a major climate change in the Middle Miocene Climatic Transition. However, the timing, process, and forcing mechanism of the closure of this seaway are controversial. To address this question, we focus on the chronology and sedimentary facies of Miocene strata in the Zagros foreland basin in the Western Iranian Plateau. Based on magnetostratigraphy and biostratigraphy, we establish a chronology of 17 to 10 Ma for the studied Miocene strata and constrain the timing of the permanent closure of the northwestern segment of the Tethyan Seaway to 12.8 Ma. By comparison with global sea-level fluctuations, we suggest that middle Miocene marine transgressions and regressions in the studied region were mainly driven by global climatic change through its control on the growth and decay of ice sheets and thus sea level changes. Our detailed depositional sequence analysis exhibits 100-kyr Earth's eccentricity cycles of marine transgressions and regressions between 15.0 and 12.8 Ma implying they were controlled by astronomical factors. Moreover, the Tethyan Seaway experienced stepwise evolution changing from partially opened seaway, restricted marine connection, intermittent connections, to permanent closure in its northwestern segment during the early and middle Miocene.
WOS关键词ARABIA-EURASIA COLLISION ; GACHSARAN FORMATION ; CLIMATIC TRANSITION ; FORELAND BASIN ; FACIES MODELS ; ICE-VOLUME ; ZAGROS ; EVOLUTION ; OCEAN ; AGE
资助项目Strategic Priority Research Program of Chinese Academy of Sciences[XDA20070202] ; National Natural Science Foundation of China[41888101]
WOS研究方向Physical Geography ; Geology ; Paleontology
语种英语
出版者ELSEVIER
WOS记录号WOS:000636756800009
资助机构Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China
源URL[http://ir.nigpas.ac.cn/handle/332004/38099]  
专题中国科学院南京地质古生物研究所
通讯作者Sun, Jimin
作者单位1.Geol Survey Iran, Res Inst Earth Sci, Tehran, Iran
2.Univ Leicester, Dept Geol, Leicester LE1 7RH, Leics, England
3.Tongji Univ, Sch Ocean & Earth Sci, Shanghai 200092, Peoples R China
4.Chinese Acad Sci, Nanjing Inst Geol & Paleontol, Nanjing 210008, Peoples R China
5.Geol Survey Iran, Appl Res Ctr, Tehran, Iran
6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
7.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
8.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Sun, Jimin,Sheykh, Morteza,Ahmadi, Nahid,et al. Permanent closure of the Tethyan Seaway in the northwestern Iranian Plateau driven by cyclic sea-level fluctuations in the late Middle Miocene[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2021,564:18.
APA Sun, Jimin.,Sheykh, Morteza.,Ahmadi, Nahid.,Cao, Mengmeng.,Zhang, Zhiliang.,...&Sha, Jingeng.(2021).Permanent closure of the Tethyan Seaway in the northwestern Iranian Plateau driven by cyclic sea-level fluctuations in the late Middle Miocene.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,564,18.
MLA Sun, Jimin,et al."Permanent closure of the Tethyan Seaway in the northwestern Iranian Plateau driven by cyclic sea-level fluctuations in the late Middle Miocene".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 564(2021):18.

入库方式： OAI收割

来源：南京地质古生物研究所

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