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| New U-Pb dates show a Paleogene origin for the modern Asian biodiversity hot spots | |
| Linnemann, U.; Su, T.; Kunzmann, L.; Spicer, R. A.; Ding, W. -N.; Spicer, T. E. V.; Zieger, J.; Hofmann, M.; Moraweck, K.; Gaertner, A.; Gerdes, A.; Marko, L.; Zhang, S. -T.; Li, S. -F.; Tang, H.; Huang, J.; Mulch, A.; Mosbrugger, V.; Zhou, Z. -K. | |
| 2018 | |
| 发表期刊 | GEOLOGY
 |
| ISSN | 0091-7613 |
| 卷号 | 46期号:1页码:3-6 |
| 摘要 | Yunnan, in southwestern China, straddles two of the world's most important biodiversity hot spots (i.e., a biogeographic region that is both a reservoir of biodiversity and threatened with destruction) and hosts more than 200 fossiliferous sedimentary basins documenting the evolutionary history of that biodiversity, monsoon development, and regional elevation changes. The fossil biotas appear modern and have been assumed to be mostly Miocene in age. Dating has been by cross-correlation using palynology, magnetostratigraphy, and lithostratigraphy because numerical radiometric ages are lacking. Here we report the first unequivocal early Oligocene age (33-32 Ma) of a section in the Luhe Basin (25.141627 degrees N, 101.373840 degrees E, 1890 m above mean sea level), central Yunnan, based on U-Pb zircon dates of unreworked volcanic ash layers in a predominantly lacustrine succession hosting abundant plant and animal fossils. This section, located in Luhe town, is correlated with an adjacent section in the Luhe coal mine previously assigned to the upper Miocene based on regional lithostratigraphic comparison. Our substantially older age for the Luhe town section calls into question previous estimates for the surface uplift and climate history of the area, and the age of all other correlative basins. The modernization of the biota similar to 20 m.y. earlier than previously thought overturns existing concepts of vegetation history in southwestern China, and points to Paleogene modernization of the biota in Yunnan and associated Asian biodiversity hot spots. |
| 学科领域 | Geology |
| DOI | 10.1130/G39693.1 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS关键词 | MIOCENE ; YUNNAN ; EVOLUTION ; MARGIN ; CLIMATE ; CHINA ; PALEOALTIMETRY ; GEOCHEMISTRY ; TAXODIACEAE ; VEGETATION |
| WOS记录号 | WOS:000418589600001 |
| 出版者 | GEOLOGICAL SOC AMER, INC |
| 文献子类 | Article |
| 出版地 | BOULDER |
| EISSN | 1943-2682 |
| 资助机构 | National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [U1502231, 4161101253] ; Chinese Academy of Scientists (CAS) [QYZDB-SSW-SMC016] ; Youth Innovation Promotion Association, CAS [2017439] |
| 作者邮箱 | Ulf.Linnemann@senckenberg.de |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ibcas.ac.cn/handle/2S10CLM1/20552 |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.[Linnemann, U. 2.Kunzmann, L. 3.Zieger, J. 4.Hofmann, M. 5.Moraweck, K. 6.Gaertner, A.] Senckenberg Museum Mineral & Geol, Nat Hist Collect Dresden, Konigsbrucker Landstr 159, D-01109 Dresden, Germany 7.[Su, T. 8.Ding, W. -N. 9.Li, S. -F. 10.Tang, H. 11.Huang, J. 12.Zhou, Z. -K.] Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Key Lab Trop Forest Ecol, Menglun 666303, Yunnan, Peoples R China 13.[Spicer, R. A.] Open Univ, Walton Hall,Kents Hill, Milton Keynes MK7 6AA, Bucks, England 14.[Spicer, R. A. 15.Spicer, T. E. V.] Chinese Acad Sci, Inst Bot, 20 Nanxincun, Beijing 100093, Peoples R China 16.[Ding, W. -N. 17.Tang, H.] Univ Chinese Acad Sci, 19 A Yuquan Rd, Beijing 100049, Peoples R China 18.[Gerdes, A. 19.Marko, L. 20.Mulch, A.] Senckenberg Biodivers & Climate Res Ctr BiK F, Senckenberganlage 25, D-60325 Frankfurt, Germany 21.[Zhang, S. -T.] Kunming Univ Sci & Technol, Fac Land Resource Engn, Kunming 650093, Yunnan, Peoples R China 22.[Mulch, A.] Goethe Univ Frankfurt, Inst Geosci, Altenhoferallee 1, D-60438 Frankfurt, Germany 23.[Mosbrugger, V.] Senckenberg Res Inst, Senckenberganlage 25, D-60325 Frankfurt, Germany 24.[Mosbrugger, V.] Nat Hist Museum, Senckenberganlage 25, D-60325 Frankfurt, Germany |
| 推荐引用方式 GB/T 7714 | Linnemann, U.,Su, T.,Kunzmann, L.,et al. New U-Pb dates show a Paleogene origin for the modern Asian biodiversity hot spots[J]. GEOLOGY,2018,46(1):3-6. |
| APA | Linnemann, U..,Su, T..,Kunzmann, L..,Spicer, R. A..,Ding, W. -N..,...&Zhou, Z. -K..(2018).New U-Pb dates show a Paleogene origin for the modern Asian biodiversity hot spots.GEOLOGY,46(1),3-6. |
| MLA | Linnemann, U.,et al."New U-Pb dates show a Paleogene origin for the modern Asian biodiversity hot spots".GEOLOGY 46.1(2018):3-6. |
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