A rock magnetic record of Asian cooling and aridification processes during 1.95-0.40 Ma in the southeastern Chinese Loess Plateau
文献类型：期刊论文
| 作者 | [Wu Yi] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China ; [Wu Yi ; Zhu ZhaoYu ; Qiu ShiFan] Chinese Acad Sci, Guangzhou Inst Geochem, Key Lab Marginal Sea Geol, Guangzhou 510640, Guangdong, Peoples R China ; [Rao ZhiGuo] Lanzhou Univ, Key Lab Western Chinas Environm Syst, Minist Educ, Lanzhou 730000, Peoples R China |
| 刊名 | CHINESE SCIENCE BULLETIN
 |
| 出版日期 | 2013 |
| 卷号 | 58期号:30页码:3636-3644 |
| 关键词 | Chinese Loess Plateau eolian deposits hematite paleoclimate environmental magnetism |
| ISSN号 | 1001-6538 |
| 通讯作者 | zhuzy@gig.ac.cn |
| 中文摘要 | The southeastern Chinese Loess Plateau is the terminal deposition area of dusts transported by the East Asian winter monsoon and the frontal area penetrated by the East Asian summer monsoon, and thus a climate sensitive region. This paper reports a rock magnetic study of a Quaternary loess-paleosol section in such a region. We tried to reconstruct the paleoclimate evolution history in the region during 1.95-0.40 Ma with magnetic parameters. The results show a general up-section decreasing trend of the ratio of HIRM/(SIRM-IRM100 mT), indicating a long-term decreasing trend of hematite coercivities in the deposits, which can be mainly related to the cooling and aridification trend of the environment in interglacial depositional area and glacial dust source region. The ratio, chi (lf)/chi (ARM), widely used to reflect the variations of magnetic mineral grain size, manifests a long-term increasing trend of the magnetic mineral grain size and tends to indicate an overall weakening trend of the East Asian summer monsoon that controlled the pedogenic intensity. Although the regional multi-segmented paleoclimatic records revealed by several magnetic parameters in our study, the long-term Asian cooling and aridification trend inferred here is of global correlation significance. |
| 学科主题 | Multidisciplinary Sciences |
| 资助信息 | This work was supported by the National Basic Research Program of China (2010CB833405) and the National Natural Science Foundation of China (41102115 and 40930106). The authors are grateful to two anonymous referees for critical comments and valuable suggestions and Dr. Tan Xiaodong for polishing English. |
| 原文出处 | SCIENCE PRESS |
| 语种 | 英语 |
| WOS记录号 | WOS:000325126500007 |
| 公开日期 | 2015-01-22 |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/11112]  |
| 专题 | 南海海洋研究所_中科院边缘海地质重点实验室 |
| 推荐引用方式 GB/T 7714 | [Wu Yi] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China,[Wu Yi,Zhu ZhaoYu,et al. A rock magnetic record of Asian cooling and aridification processes during 1.95-0.40 Ma in the southeastern Chinese Loess Plateau[J]. CHINESE SCIENCE BULLETIN,2013,58(30):3636-3644. |
| APA | [Wu Yi] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China,[Wu Yi,Zhu ZhaoYu,Qiu ShiFan] Chinese Acad Sci, Guangzhou Inst Geochem, Key Lab Marginal Sea Geol, Guangzhou 510640, Guangdong, Peoples R China,&[Rao ZhiGuo] Lanzhou Univ, Key Lab Western Chinas Environm Syst, Minist Educ, Lanzhou 730000, Peoples R China.(2013).A rock magnetic record of Asian cooling and aridification processes during 1.95-0.40 Ma in the southeastern Chinese Loess Plateau.CHINESE SCIENCE BULLETIN,58(30),3636-3644. |
| MLA | [Wu Yi] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China,et al."A rock magnetic record of Asian cooling and aridification processes during 1.95-0.40 Ma in the southeastern Chinese Loess Plateau".CHINESE SCIENCE BULLETIN 58.30(2013):3636-3644. |
入库方式： OAI收割
来源：南海海洋研究所
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