Stepwise expansion of desert environment across northern China in the past 3.5 Ma and implications for monsoon evolution
文献类型：期刊论文
| 作者 | Ding, ZL; Derbyshire, E; Yang, SL; Sun, JM; Liu, TS |
| 刊名 | EARTH AND PLANETARY SCIENCE LETTERS
 |
| 出版日期 | 2005-08-30 |
| 卷号 | 237期号:1-2页码:45-55 |
| 关键词 | East-asian Summer Monsoon Loess-red Clay Sequence Mu Us Desert Sand Content Of Loess Plio-pleistocene |
| ISSN号 | 0012-821X |
| DOI | 10.1016/j.epsl.2005.06.036 |
| 文献子类 | Article |
| 英文摘要 | A systematic study of the last glacial cycle along three transects across the Chinese Loess Plateau shows that sand-sized particle content within loess decreases rapidly from north to south, and that markedly high sand particle contents in loess horizons occur only in the northern part of the Plateau. This suggests that variation in the sand-sized particle fraction within loess near the desert margin is closely linked to migration of the southern desert border in northern China where sand grains move mainly in saltation or modified saltation mode near the ground surface. As desert margin shift is essentially controlled by the amount of monsoon precipitation, the sand-sized particle content within loess near desert margin is regarded as a new and readily applied proxy for variations in the strength of the East-Asian summer monsoon. A continuous record of sand content in loess along the loess-desert transitional zone shows that the Mu Us Desert migrated southward at 2.6, 1.2, 0.7 and 0.2 Ma, suggesting a stepwise weakening of the East-Asian summer monsoon during the past 3.5 Ma. This evolutionary pattern is significantly different from that previously inferred from loess magnetic susceptibility records, a widely used monsoon proxy. Our results further suggest that changes in global ice volume may have been an essential factor in controlling Plio-Pleistocene monsoon evolution, and that the anticipated future melting of polar ice cover may lead to a northward migration of the monsoon rainfall belt in northern China. (c) 2005 Elsevier B.V. All rights reserved. |
| WOS关键词 | MAGNETIC-SUSCEPTIBILITY SIGNAL ; LAST 130,000 YEARS ; LOESS PLATEAU ; TIBETAN PLATEAU ; ASIAN MONSOON ; US DESERT ; CLIMATE ; UPLIFT ; DUST ; RECORD |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000232047400004 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/65798]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Ding, ZL |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Univ London Royal Holloway & Bedford New Coll, Dept Geog, Egham TW20 0EX, Surrey, England |
| 推荐引用方式 GB/T 7714 | Ding, ZL,Derbyshire, E,Yang, SL,et al. Stepwise expansion of desert environment across northern China in the past 3.5 Ma and implications for monsoon evolution[J]. EARTH AND PLANETARY SCIENCE LETTERS,2005,237(1-2):45-55. |
| APA | Ding, ZL,Derbyshire, E,Yang, SL,Sun, JM,&Liu, TS.(2005).Stepwise expansion of desert environment across northern China in the past 3.5 Ma and implications for monsoon evolution.EARTH AND PLANETARY SCIENCE LETTERS,237(1-2),45-55. |
| MLA | Ding, ZL,et al."Stepwise expansion of desert environment across northern China in the past 3.5 Ma and implications for monsoon evolution".EARTH AND PLANETARY SCIENCE LETTERS 237.1-2(2005):45-55. |
入库方式： OAI收割
来源：地质与地球物理研究所
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