No high Tibetan Plateau until the Neogene | |
Su, T.; Farnsworth, A.; Spicer, R. A.; Huang, J.; Wus, F-X; Liu, J.; Li, S-F; Xing, Y-W; Huang, Y-J; Deng, W-Y-D | |
刊名 | SCIENCE ADVANCES |
2019 | |
卷号 | 5期号:3页码:- |
关键词 | Lunpola Basin Asian Monsoon Oligocene Eocene Paleoelevation Qiangtang Northern Himalaya Climate |
ISSN号 | 2375-2548 |
DOI | 10.1126/sciadv.aav2189 |
英文摘要 | The Late Paleogene surface height and paleoenvironment for the core area of the Qinghai-Tibetan Plateau (QTP) remain critically unresolved. Here, we report the discovery of the youngest well-preserved fossil palm leaves from Tibet. They were recovered from the Late Paleogene (Chattian), ca. 25.5 +/- 0.5 million years, paleolake sediments within the Lunpola Basin (32.033 degrees N, 89.767 degrees E), central QTP at a present elevation of 4655 m. The anatomy of palms renders them intrinsically susceptible to freezing, imposing upper bounds on their latitudinal and altitudinal distribution. Combined with model-determined paleoterrestrial lapse rates, this shows that a high plateau cannot have existed in the core of Tibet in the Paleogene. Instead, a deep paleovalley, whose floor was <2.3 km above mean sea level bounded by (>4 km) high mountain systems, formed a topographically highly varied landscape. This finding challenges prevailing views on tectonic processes, monsoon dynamics, and the evolution of Asian biodiversity. |
学科主题 | Science & Technology - Other Topics |
语种 | 英语 |
WOS记录号 | WOS:000462564300055 |
内容类型 | 期刊论文 |
源URL | [http://ir.xtbg.org.cn/handle/353005/11186] |
专题 | 西双版纳热带植物园_古生态研究组 |
作者单位 | 1.[Su, T. 2.Spicer, R. A. 3.Huang, J. 4.Liu, J. 5.Li, S-F 6.Xing, Y-W 7.Deng, W-Y-D 8.Tang, H. 9.Xu, C-L 10.Zhao, F. |
推荐引用方式 GB/T 7714 | Su, T.,Farnsworth, A.,Spicer, R. A.,et al. No high Tibetan Plateau until the Neogene[J]. SCIENCE ADVANCES,2019,5(3):-. |
APA | Su, T..,Farnsworth, A..,Spicer, R. A..,Huang, J..,Wus, F-X.,...&Zhou, Z-K.(2019).No high Tibetan Plateau until the Neogene.SCIENCE ADVANCES,5(3),-. |
MLA | Su, T.,et al."No high Tibetan Plateau until the Neogene".SCIENCE ADVANCES 5.3(2019):-. |
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