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| DOI | 10.1016/j.gloplacha.2023.104313 |
| The late Eocene rise of SE Tibet formed an Asian 'Mediterranean' climate | |
| Zhao, Chenyuan; Xiong, Zhongyu; Farnsworth, Alex; Spicer, Robert A.; He, Songlin; Wang, Chao; Zeng, Deng; Cai, Fulong; Wang, Houqi; Tian, Xiaolong; Valdes, Paul J.; Lamu, Ciren; Xie, Jing; Yue, Yahui; Ding, Lin | |
| 发表日期 | 2023 |
| ISSN | 0921-8181 |
| EISSN | 1872-6364 |
| 卷号 | 231 |
| 英文摘要 | Southeastern (SE) Tibet forms the transition zone between the high interior Tibetan Plateau and the lowlands of southwest China. So understanding the elevation history of SE Tibet, a biodiversity hotspot, enlightens our understanding of the interactions between tectonics, monsoon dynamics and biodiversity. Here we reconstruct the uplift history of the Markam Basin, SE Tibet, during the middle-late Eocene based on U - Pb dating, plant fossil assemblages, and stable and clumped isotope analyses. Our results suggest that the floor of the Markam Basin was at an elevation of 2.6 +/- 0.9 km between 42 Ma and 39 Ma, where the mean annual air temperature (MAAT) was 13.2 +/- 2.4 degrees C. The basin then rose rapidly to 3.8 (+0.6/-0.8) km before 36 Ma. Integrated with existing paleoelevation data, we propose that the high plateau boundary (similar to 3.0 km) of SE Tibet formed during the late Eocene. Numerical climate modeling with realistic paleo-landscapes shows that with the rise of SE Tibet, a Mediterranean-like climate developed in the region characterized by bi-modal precipitation with two wet seasons in boreal spring and autumn. The high topographic relief of SE Tibet, coupled with this distinctive Mediterranean-like climate system, helped develop the high biodiversity of the Hengduan Mountains. |
| 关键词 | Paleoelevation'Mediterranean ' climateSE TibetPlant fossilClumped isotopeEocene |
| 英文关键词 | LOWER CRUSTAL FLOW; CLUMPED ISOTOPE; QIANGTANG TERRANE; STABLE-ISOTOPE; U-PB; PLATEAU; MONSOONS; TEMPERATURE; EVOLUTION; MARGIN |
| WOS研究方向 | Geography, Physical ; Geosciences, Multidisciplinary |
| WOS记录号 | WOS:001130456200001 |
| 来源期刊 | GLOBAL AND PLANETARY CHANGE
 |
| 来源机构 | 中国科学院青藏高原研究所 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/282569 |
| 作者单位 | Chinese Academy of Sciences; Institute of Tibetan Plateau Research, CAS; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; Open University - UK; University of Bristol; Chinese Academy of Sciences; Xishuangbanna Tropical Botanical Garden, CAS |
| 推荐引用方式 GB/T 7714 | Zhao, Chenyuan,Xiong, Zhongyu,Farnsworth, Alex,et al. The late Eocene rise of SE Tibet formed an Asian 'Mediterranean' climate[J]. 中国科学院青藏高原研究所,2023,231. |
| APA | Zhao, Chenyuan.,Xiong, Zhongyu.,Farnsworth, Alex.,Spicer, Robert A..,He, Songlin.,...&Ding, Lin.(2023).The late Eocene rise of SE Tibet formed an Asian 'Mediterranean' climate.GLOBAL AND PLANETARY CHANGE,231. |
| MLA | Zhao, Chenyuan,et al."The late Eocene rise of SE Tibet formed an Asian 'Mediterranean' climate".GLOBAL AND PLANETARY CHANGE 231(2023). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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