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| Cool tropics in the Middle Eocene: Evidence from the Changchang Flora, Hainan Island, China | |
| Spicer, Robert A.; Herman, Alexei B.; Liao, Wenbo; Spicer, Teresa E. V.; Kodrul, Tatiana M.; Yang, Jian10; Jin, Jianhua7,7 | |
| 2014 | |
| 发表期刊 | PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
 |
| ISSN | 0031-0182 |
| 卷号 | 412页码:1-16 |
| 摘要 | The middle Eocene (Lutetian-Bartonian, 48.6-37.2 Ma) near-equatorial megafossil flora from swamp and lacustrine fades of the lower Changchang Formation, Hainan Island, South China (19.631463 degrees N, 110.445049 degrees E) is highly diverse (>200 taxa) dominated by an unusual mixture of angiosperms typical of modern temperate, subtropical and tropical evergreen and deciduous forms. It is also rich in palms. Multivariate analysis of the architecture of minimally transported woody dicot leaves reveals a mean annual air temperature (MAT) of similar to 22 +/- 4.7 degrees C with a marked thermal seasonality range of similar to 21 degrees C. The year-round humid climate lacked any monsoonal signature. The overall climate signal is compatible with the growth characteristics exhibited by fossil wood, but is warmer than the climate signal derived from pollen and spores using Co-existence Analysis. Corrections for possible palaeoelevation of the basin bring the megafossil-derived MAT estimate in line with 54-52 Ma sea surface and soil temperatures obtained from the Gulf Coast, USA, (palaeolatitude similar to 30 degrees N) using multiple geochemical proxies and supports the claim that the low latitude Eocene climate was not uniformly warm. This challenges previous conclusions based on partial derivative O-18 analysis of unaltered calcareous microfossils. Our air temperature data also adds to the challenge of understanding heat transport away from the equator to higher latitudes during 'hot-house' climate regimes. (C) 2014 Elsevier B.V. All eights reserved. |
| 关键词 | Eocene Cool tropics Climate Leaf Analysis Multivariate Program Hainan Island Plant fossils |
| 学科领域 | Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology |
| DOI | 10.1016/j.palaeo.2014.07.011 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS关键词 | SEA-SURFACE TEMPERATURES ; PALEOCLIMATE DATA ; LATE PALEOCENE ; 1ST RECORD ; CLIMATE ; WARM ; RECONSTRUCTION ; BASIN |
| WOS研究方向 | Physical Geography ; Geology ; Paleontology |
| WOS记录号 | WOS:000342711800001 |
| 出版者 | ELSEVIER |
| 文献子类 | Article |
| 出版地 | AMSTERDAM |
| EISSN | 1872-616X |
| 资助机构 | National Natural Science Foundation of China [41210001, 31070200] ; National Basic Research Program of China (973 Program) [2012CB822003] ; National Natural Science Foundation of China ; Russian Foundation for Basic Research [413111040, 14-05-91163] ; Fundamental Research Funds for the Central Universities [12lgjc04] ; RAS ; Chinese Academy of Sciences [2009S1-20] ; International S & T Cooperation Project of China [2009DFA32210] |
| 作者邮箱 | lssjjh@mail.sysu.edu.cn |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ibcas.ac.cn/handle/2S10CLM1/27028 |
| 专题 | 中科院北方资源植物重点实验室 |
| 作者单位 | 1.[Spicer, Robert A.] Open Univ, Ctr Earth Planetary Space & Astron Res, Milton Keynes MK7 6AA, Bucks, England 2.[Herman, Alexei B. 3.Kodrul, Tatiana M.] Russian Acad Sci, Inst Geol, Lab Paleoflorist, Moscow 119017, Russia 4.[Spicer, Robert A. 5.Herman, Alexei B. 6.Liao, Wenbo 7.Kodrul, Tatiana M. 8.Sun Yat Sen Univ, Sch Life Sci, State Key Lab Biocontrol, Guangzhou 510275, Guangdong, Peoples R China 9.Sun Yat Sen Univ, Sch Life Sci, Guangdong Key Lab Plant Resources, Guangzhou 510275, Guangdong, Peoples R China 10.Spicer, Teresa E. V. 11.Chinese Acad Sci, Inst Bot, Key State Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China |
| 推荐引用方式 GB/T 7714 | Spicer, Robert A.,Herman, Alexei B.,Liao, Wenbo,et al. Cool tropics in the Middle Eocene: Evidence from the Changchang Flora, Hainan Island, China[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2014,412:1-16. |
| APA | Spicer, Robert A..,Herman, Alexei B..,Liao, Wenbo.,Spicer, Teresa E. V..,Kodrul, Tatiana M..,...&Jin, Jianhua.(2014).Cool tropics in the Middle Eocene: Evidence from the Changchang Flora, Hainan Island, China.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,412,1-16. |
| MLA | Spicer, Robert A.,et al."Cool tropics in the Middle Eocene: Evidence from the Changchang Flora, Hainan Island, China".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 412(2014):1-16. |
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| Cool_tropics_in_the_（13495KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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