气候变化领域集成服务门户(CCPortal): Eocene ostracods from southern Tibet: Implications for the disappearance of Neo-Tethys

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DOI	10.1016/j.palaeo.2019.109488
	Eocene ostracods from southern Tibet: Implications for the disappearance of Neo-Tethys
	Wang T.; Li G.; Aitchison J.C.; Sheng J.
发表日期	2020
ISSN	0031-0182
卷号	539
英文摘要	The Yadong area was located in the residual Neo-Tethyan basin during the Paleogene. It contains a record of the youngest marine deposition in the Tethyan Himalayas. Therefore, biostratigraphic data from this area are essential to constrain the timing of elimination of the Tethyan Ocean and the India-Asia collision. Ostracods are one of the most diverse groups of living crustaceans, inhabiting marine, non-marine and even some semi-terrestrial habitats. They provide important evidence to reconstruct paleoenvironment and biogeography. This investigation examined ostracod faunas recovered from the Paleogene Zhepure Formation in the Gulupu section, Tüna, Yadong, southern Tibet. The formation can be further divided into a lower Limestone Member and an overlying Shale Member, which are conformable. Abundant, diverse well-preserved marine ostracods were recovered from the Shale Member. We report 29 species from 15 genera. The stratigraphic distribution of the Eocene ostracod assemblages found reveals three ostracod zones, and shows strong affinity to sections previously investigated throughout the Neo-Tethyan region. The Zhepure Formation also yields diverse planktonic and benthic foraminifers, charophytes, nannofossils, and pteropods and indicates that open marine conditions existed widely during the Eocene. Based on this study of little-known Eocene ostracods, we suggest that final closure of the Tethyan seaway occurred after early Late Eocene. © 2019
英文关键词	Biostratigraphy; India-Asia collision; Open shallow marine; Tethyan seaway; Tüna
语种	英语
scopus关键词	benthic foraminifera; biostratigraphy; Cretaceous-Paleogene boundary; Eocene; fossil assemblage; marine environment; nanofossil; ostracod; paleoenvironment; Paleogene; planktonic foraminifera; Asia; China; Himalayas; India; Xizang; Yadong; Characeae; Crustacea; Foraminifera; Ostracoda; Pteropoda
来源期刊	Palaeogeography, Palaeoclimatology, Palaeoecology
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/150640
作者单位	State Key Laboratory of Environmental Geology and Biogeology, China University of Geosciences, Beijing, 100083, China; School of Earth Sciences and Resources, China University of Geosciences, Beijing, 100083, China; School of Earth and Environmental Sciences, University of Queensland4072, Australia
推荐引用方式 GB/T 7714	Wang T.,Li G.,Aitchison J.C.,et al. Eocene ostracods from southern Tibet: Implications for the disappearance of Neo-Tethys[J],2020,539.
APA	Wang T.,Li G.,Aitchison J.C.,&Sheng J..(2020).Eocene ostracods from southern Tibet: Implications for the disappearance of Neo-Tethys.Palaeogeography, Palaeoclimatology, Palaeoecology,539.
MLA	Wang T.,et al."Eocene ostracods from southern Tibet: Implications for the disappearance of Neo-Tethys".Palaeogeography, Palaeoclimatology, Palaeoecology 539(2020).