| New magnetochronology of Late Miocene mammal fauna, NE Tibetan Plateau, China: Mammal migration and paleoenvironments | |
| Ao, Hong1; Zhang, Peng1; Dekkers, Mark J.2; Roberts, Andrew P.3; An, Zhisheng1; Li, Yongxiang4; Lu, Fengyan1; Lin, Shan1,5; Li, Xingwen1,5 | |
| 2016-01-15 | |
| 发表期刊 | EARTH AND PLANETARY SCIENCE LETTERS
 |
| 卷号 | 434期号:2016页码:220-230 |
| 文章类型 | Article |
| 摘要 | Lanzhou Basin lies on the northeastern margin of the Tibetan Plateau in western China and is a rich source of Oligocene-Miocene mammalian fossils. Obtaining precise age determinations for these fossils is important to address key questions concerning mammalian and environmental evolution in Asia associated with stepwise Tibetan Plateau uplift. Here we report a new magnetostratigraphic record for the Xingjiawan fluvio-lacustrine section from the northwestern margin of Lanzhou Basin that can be correlated to the geomagnetic polarity timescale with two options. The Late Miocene Xingjiawan Fauna is located either at the boundary between reversed polarity chron C4r.lr and normal polarity chron C4n.2n or at the boundary between subchrons C5r.lr and C5n.2n, with an estimated age of at least similar to 8 Ma or perhaps as early as similar to 11 Ma. Both age estimations imply that the fossil Stegodon in the Lanzhou Basin is the oldest known record of Stegodon worldwide; it predates the formerly oldest Stegodon find from Africa by at least one million years and perhaps by as many as four million years. This provides new evidence for an Asian origin of Stegodon. Together with other faunal components, a mixed woodland/grassland setting existed in the Lanzhou Basin during the Late Miocene, in contrast to its modern arid environment. (C) 2015 Elsevier B.V. All rights reserved. |
| 关键词 | Magnetostratigraphy Stegodon Mammal Migration Paleoenvironment Tibetan Plateau Late Miocene |
| WOS标题词 | Science & Technology ; Physical Sciences |
| DOI | 10.1016/j.epsl.2015.11.019 |
| 关键词[WOS] | TIANSHAN MOUNTAINS ; TERTIARY DEPOSITS ; LANZHOU BASIN ; MAGNETOSTRATIGRAPHY ; UPLIFT ; MA ; RECORD ; CLIMATE ; PLEISTOCENE ; PROVINCE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Geochemistry & Geophysics |
| WOS类目 | Geochemistry & Geophysics |
| WOS记录号 | WOS:000368870500021 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ieecas.cn/handle/361006/5838 |
| 专题 | 古环境研究室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Peoples R China 2.Univ Utrecht, Fac Geosci, Dept Earth Sci, Paleomagnet Lab Ft Hoofddijk, Budapestlaan 17, NL-3584 CD Utrecht, Netherlands 3.Australian Natl Univ, Res Sch Earth Sci, GPO Box 4, Canberra, ACT 2601, Australia 4.NW Univ Xian, Dept Geol, State Key Lab Continental Dynam, Xian 710069, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ao, Hong,Zhang, Peng,Dekkers, Mark J.,et al. New magnetochronology of Late Miocene mammal fauna, NE Tibetan Plateau, China: Mammal migration and paleoenvironments[J]. EARTH AND PLANETARY SCIENCE LETTERS,2016,434(2016):220-230. |
| APA | Ao, Hong.,Zhang, Peng.,Dekkers, Mark J..,Roberts, Andrew P..,An, Zhisheng.,...&Li, Xingwen.(2016).New magnetochronology of Late Miocene mammal fauna, NE Tibetan Plateau, China: Mammal migration and paleoenvironments.EARTH AND PLANETARY SCIENCE LETTERS,434(2016),220-230. |
| MLA | Ao, Hong,et al."New magnetochronology of Late Miocene mammal fauna, NE Tibetan Plateau, China: Mammal migration and paleoenvironments".EARTH AND PLANETARY SCIENCE LETTERS 434.2016(2016):220-230. |
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| New magnetochronolog（2114KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 请求全文 | |
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