High resolution hematite/goethite records from Chinese loess sequences for the last glacial-interglacial cycle: Rapid climatic response of the East Asian Monsoon to the tropical Pacific
文献类型：期刊论文
| 作者 | Ji, JF; Chen, J; Balsam, W; Lu, HY; Sun, YB; Xu, HF |
| 刊名 | GEOPHYSICAL RESEARCH LETTERS
 |
| 出版日期 | 2004-02-13 |
| 卷号 | 31期号:3 |
| 关键词 | hematite and goethite humid and dry Chinese loess |
| DOI | 10.1029/2003GL018975 |
| 文献子类 | Article |
| 英文摘要 | In order to study the variability of dry versus humid conditions resulting from the East Asian monsoon (EAM) we analyzed hematite and goethite from two high-resolution Chinese loess sections by diffuse reflectance spectroscopy. The hematite and goethite concentrations are higher in interglacial paleosols than in glacial loess sediments, whereas the hematite/goethite (Hm/Gt) ratios are lower in paleosols than in loess. Such changes are consistent with higher precipitation and temperature and increased pedogenesis during interglaciation and lower precipitation and temperature and decreased pedogenesis during glaciation. The Hm/Gt ratio can be employed as a tool to assess short-term variations in humidity and aridity of the EAM. The Hm/Gt ratios of the last glacial loess displays millennial-scale abrupt climate oscillations, revealing a pattern of significantly reduced and enhanced summer monsoon moisture. Our results indicate that the EAM responded to tropical Pacific climate by millennial-scale changes in precipitation during the last glaciation. |
| 学科主题 | Geology |
| WOS关键词 | SURFACE MAGNETIC-SUSCEPTIBILITY ; DUST ACCUMULATION RATE ; PALEOSOL SEQUENCES ; NORTH-ATLANTIC ; PLATEAU ; ICE ; PRECIPITATION ; TEMPERATURE ; DEPENDENCE ; GOETHITE |
| WOS研究方向 | Geosciences, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000189051200004 |
| 出版者 | AMER GEOPHYSICAL UNION |
| 源URL | [http://ir.ieecas.cn/handle/361006/11936]  |
| 专题 | 黄土与第四纪地质国家重点实验室（1985-2004） |
| 推荐引用方式 GB/T 7714 | Ji, JF,Chen, J,Balsam, W,et al. High resolution hematite/goethite records from Chinese loess sequences for the last glacial-interglacial cycle: Rapid climatic response of the East Asian Monsoon to the tropical Pacific[J]. GEOPHYSICAL RESEARCH LETTERS,2004,31(3). |
| APA | Ji, JF,Chen, J,Balsam, W,Lu, HY,Sun, YB,&Xu, HF.(2004).High resolution hematite/goethite records from Chinese loess sequences for the last glacial-interglacial cycle: Rapid climatic response of the East Asian Monsoon to the tropical Pacific.GEOPHYSICAL RESEARCH LETTERS,31(3). |
| MLA | Ji, JF,et al."High resolution hematite/goethite records from Chinese loess sequences for the last glacial-interglacial cycle: Rapid climatic response of the East Asian Monsoon to the tropical Pacific".GEOPHYSICAL RESEARCH LETTERS 31.3(2004). |
入库方式： OAI收割
来源：地球环境研究所
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