Paleoclimatic significance of the temperature-dependent susceptibility of Holocene loess along a NW-SE transect in the Chinese loess plateau
文献类型：期刊论文
| 作者 | Deng, CL; Zhu, RX; Verosub, KL; Singer, MJ; Yuan, BY |
| 刊名 | GEOPHYSICAL RESEARCH LETTERS
 |
| 出版日期 | 2000-11-15 |
| 卷号 | 27期号:22页码:3715-3718 |
| ISSN号 | 0094-8276 |
| 文献子类 | Article |
| 英文摘要 | We have conducted mineral magnetic investigations of samples of modem dune sand, pristine loess and present-day loess along a NW-SE transect from the northern to the central loess plateau in China. The methods used include the temperature-dependence of susceptibility (TDS) before and after citrate-bicarbonate-dithionite (CBD) treatment as well as X-ray diffraction (XRD) analysis. The XRD analyses demonstrate that magnetite and hematite both exist in the Chinese loess-paleosol sequence and its modern source area, but the TDS measurements show that magnetite is the predominant contributor to magnetic susceptibility. Maghemite is present in the pristine loess and the present-day loess due to pedogenesis. The pedogenic processes that produce the maghemite are closely linked to paleoclimate, and for this transect, precipitation appears to be the most important climatic variable. We suggest that TDS can be used as a useful method for the analysis of pedogenesis and climatic change. |
| WOS关键词 | MAGNETIC-SUSCEPTIBILITY ; PALEOSOL SEQUENCES ; DEPOSITS ; ORIGIN |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000165418200028 |
| 出版者 | AMER GEOPHYSICAL UNION |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/76065]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Deng, CL |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100101, Peoples R China 2.Univ Calif Davis, Dept Geol, Davis, CA 95616 USA 3.Univ Calif Davis, Dept Land Air & Water Resources, Davis, CA 95616 USA |
| 推荐引用方式 GB/T 7714 | Deng, CL,Zhu, RX,Verosub, KL,et al. Paleoclimatic significance of the temperature-dependent susceptibility of Holocene loess along a NW-SE transect in the Chinese loess plateau[J]. GEOPHYSICAL RESEARCH LETTERS,2000,27(22):3715-3718. |
| APA | Deng, CL,Zhu, RX,Verosub, KL,Singer, MJ,&Yuan, BY.(2000).Paleoclimatic significance of the temperature-dependent susceptibility of Holocene loess along a NW-SE transect in the Chinese loess plateau.GEOPHYSICAL RESEARCH LETTERS,27(22),3715-3718. |
| MLA | Deng, CL,et al."Paleoclimatic significance of the temperature-dependent susceptibility of Holocene loess along a NW-SE transect in the Chinese loess plateau".GEOPHYSICAL RESEARCH LETTERS 27.22(2000):3715-3718. |
入库方式： OAI收割
来源：地质与地球物理研究所
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