| Qaidam Basin leaf fossils show northeastern Tibet was high, wet and cool in the early Oligocene | |
| Song, Bowen1; Spicer, Robert A.; Zhang, Kexin1; Ji, Junliang1; Farnsworth, Alexander; Hughes, Alice C.; Yang, Yibo5,6; Han, Fang7; Xu, Yadong1,8; Spicer, Teresa2; Shen, Tianyi8; Lunt, Daniel J.; Shi, Gongle9,10 | |
| 2020 | |
| Source Publication | EARTH AND PLANETARY SCIENCE LETTERS
 |
| ISSN | 0012-821X |
| Volume | 537Pages:- |
| Abstract | The Paleogene environment of today's semi-arid and arid Central Asia is poorly quantified and knowledge of the paleoelevation of northern Tibet remains elusive, yet both are crucially important for understanding inter-relationships between growth of the Tibetan Plateau and Asian monsoon development. Here, we apply the Climate-Leaf Analysis Multivariate Program (CLAMP) and moist enthalpy method to the newly discovered early Oligocene (30.8 Ma) fossil leaves from the Qaidam Basin, to reconstruct quantitatively the paleoclimate and paleoelevation of this critical part of northern Tibet. We find the Qaidam Basin floor vegetation was likely at similar to 3.3 +/- 1.4 km in the early Oligocene, similar to that of the present basin floor but higher than the rising Himalaya at that time, and experienced a temperate, moderately wet climate. Near-freezing (1.4 +/- 3.5 degrees C) winters accompanied cool summers (similar to 23 +/- 2.9 degrees C). Annual precipitation likely exceeded 1000 mm (growing season precipitation of 1229 +/- 643 mm) with subdued (non-monsoonal) seasonality in which summers were drier than winters. This finding challenges geodynamic models that envisage a Miocene or later uplift of northern Tibet and progressive uplift from the south. (C) 2020 Elsevier B.V. All rights reserved. |
| Keyword | Qaidam Oligocene physiognomy general circulation climate model paleoelevation paleoclimate |
| Subject Area | Geochemistry & Geophysics |
| DOI | 10.1016/j.epsl.2020.116175 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000525394700003 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://ir.xtbg.ac.cn/handle/353005/11651 |
| Collection | 2012年后新成立研究组 |
| Affiliation | 1.China Univ Geosci, Inst Geol Survey, Wuhan 430074, Peoples R China 2.China Univ Geosci, State Key Lab Biogeol & Environm Geol, Wuhan 430074, Peoples R China 3.Chinese Acad Sci, CAS Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, Mengla 666303, Peoples R China 4.Spicer, Robert A.] Open Univ, Sch Environm Earth & Ecosyst Sci, Milton Keynes MK7 6AA, Bucks, England 5.Farnsworth, Alexander; Lunt, Daniel J.] Univ Bristol, Sch Geog Sci, Bristol BS8 1SS, Avon, England 6.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Continental Collis & Plateau Uplift, Beijing 100101, Peoples R China 7.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China 8.East China Univ Technol, Sch Earth Sci, Nanchang 330013, Jiangxi, Peoples R China 9.China Univ Geosci, Sch Earth Sci, Wuhan 430074, Peoples R China 10.Chinese Acad Sci, State Key Lab Palaeobiol & Stratig, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China 11.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Nanjing 210008, Peoples R China |
| Recommended Citation GB/T 7714 | Song, Bowen,Spicer, Robert A.,Zhang, Kexin,et al. Qaidam Basin leaf fossils show northeastern Tibet was high, wet and cool in the early Oligocene[J]. EARTH AND PLANETARY SCIENCE LETTERS,2020,537:-. |
| APA | Song, Bowen.,Spicer, Robert A..,Zhang, Kexin.,Ji, Junliang.,Farnsworth, Alexander.,...&Shi, Gongle.(2020).Qaidam Basin leaf fossils show northeastern Tibet was high, wet and cool in the early Oligocene.EARTH AND PLANETARY SCIENCE LETTERS,537,-. |
| MLA | Song, Bowen,et al."Qaidam Basin leaf fossils show northeastern Tibet was high, wet and cool in the early Oligocene".EARTH AND PLANETARY SCIENCE LETTERS 537(2020):-. |
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| Qaidam Basin leaf fo（4045KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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