Marked ecological shifts during 6.2-2.4 Ma revealed by a terrestrial molluscan record from the Chinese Red Clay Formation and implication for palaeoclimatic evolution
文献类型：期刊论文
| 作者 | Wu, NQ; Pei, YP; Lu, HY; Guo, ZT; Li, FJ; Liu, TS |
| 刊名 | PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
 |
| 出版日期 | 2006-04-17 |
| 卷号 | 233期号:3-4页码:287-299 |
| 关键词 | Red Clay late Miocene-Pliocene mollusk groups palaeoclimatic evolution |
| ISSN号 | 0031-0182 |
| DOI | 10.1016/j.palaeo.2005.10.006 |
| 文献子类 | Article |
| 英文摘要 | A new molluscan fossil record from the late Miocene-Pliocene Xifeng Red Clay sequence in the central Loess Plateau, northern China, reveals the process of ecological environmental changes during similar to 6.2-2.4 Ma. Three marked ecological shifts in mollusk assemblages occurred at about 5.4, 4.5, and 3.4 Ma, which reflect changes in the East Asian monsoon circulation. A predominantly cold-aridiphilous group reveals ail extremely cold dry climate due to strengthened East Asian winter monsoon during similar to 6.2-5.4 Ma. A predominantly thermo-humidiphilous group from similar to 5.4-4.5 Ma indicates a strengthening of the East Asia summer monsoon circulation. The marked occurrence of meso-xerophilous taxa during similar to 4.5-3.4 Ma implies mild climatic conditions. From 3.4 Ma, the cold-aridiphilious species again became dominant in the fossil assemblages, indicating that the winter monsoon was gradually intensifying towards the Quaternary glaciations. Climate changes in this region were characterized by stepwise cooling from 5.4 to 2.4 Ma with a 1 Ma rhythmicity. The cooling trend is in good agreement with the general global cooling trend during this period, as documented by marine delta O-18 records. The formation and development of the Northern Hemisphere ice sheets during the late Pliocene accelerated the climate deterioration towards the Quaternary glaciations. The history of environmental changes revealed by the Red Clay molluscan fossils is coupled in phase with the process of Tibetan Plateau uplift, which may be the major cause and forcing mechanism of late Miocene-Pliocene environmental changes in the Loess Plateau. (c) 2005 Elsevier B.V. All rights reserved. |
| WOS关键词 | LUOCHUAN LOESS SEQUENCE ; PLIOCENE-PLEISTOCENE ; NORTHERN-HEMISPHERE ; EOLIAN DEPOSITION ; LATE MIOCENE ; CENOZOIC HISTORY ; EARTH FORMATION ; PLATEAU UPLIFT ; TIBETAN UPLIFT ; CLIMATE-CHANGE |
| WOS研究方向 | Physical Geography ; Geology ; Paleontology |
| 语种 | 英语 |
| WOS记录号 | WOS:000236946300008 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/66392]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Wu, NQ |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.CAS, Inst Earth Environm, Xian 710054, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, NQ,Pei, YP,Lu, HY,et al. Marked ecological shifts during 6.2-2.4 Ma revealed by a terrestrial molluscan record from the Chinese Red Clay Formation and implication for palaeoclimatic evolution[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2006,233(3-4):287-299. |
| APA | Wu, NQ,Pei, YP,Lu, HY,Guo, ZT,Li, FJ,&Liu, TS.(2006).Marked ecological shifts during 6.2-2.4 Ma revealed by a terrestrial molluscan record from the Chinese Red Clay Formation and implication for palaeoclimatic evolution.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,233(3-4),287-299. |
| MLA | Wu, NQ,et al."Marked ecological shifts during 6.2-2.4 Ma revealed by a terrestrial molluscan record from the Chinese Red Clay Formation and implication for palaeoclimatic evolution".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 233.3-4(2006):287-299. |
入库方式： OAI收割
来源：地质与地球物理研究所
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