Effects of low-temperature oxidation on natural remanent magnetization of Chinese loess
文献类型：期刊论文
| 作者 | Liu, QS; Banerjee, SK; Jackson, MJ; Zhu, RX; Pan, YX |
| 刊名 | CHINESE SCIENCE BULLETIN
 |
| 出版日期 | 2002-12-01 |
| 卷号 | 47期号:24页码:2100-2105 |
| 关键词 | chemical remanent magnetization low-temperature oxidation Verwey transition natural remanent magnetization Chinese loess |
| ISSN号 | 1001-6538 |
| 文献子类 | Article |
| 英文摘要 | This study systematically investigates changes in both compositions and grain-sizes of magnetic minerals in the Chinese loess/paleosol samples (Yichuan, China) during thermal demagnetization processes. Between 100 and 200degreesC, (1) H-c and H-cr significantly decrease while M-rs and M-s remain stable; (2) concentration of the multi-domain (MD) grains increases while that of superparamagnetic (SP) grains decreases; and (3) there exists the abnormal behavior of the thermal demagnetization in the natural remanent magnetization (NRM). In addition, the corresponding changes in all these parameters are gradually muted with the increase of the pedogenesis degree. The results indicate that the observed alteration probably relates to reducing processes caused by the burning of the organic matter in samples. Before the thermal treatment, the MD grains in loess samples had been partially altered in nature by low-temperature oxidization (LTO). This CRM can be sufficiently attenuated or even removed by the reducing process between 100 and 200degreesC during the thermal treatment and has no apparent harmful effects on the characteristic remanent magnetization (ChRM) between 300 and 500degreesC. |
| WOS关键词 | RECORD ; PLATEAU ; CLIMATE ; MAGNETITE ; DEPOSITS ; SECTION |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000179588800018 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/77955]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Liu, QS |
| 作者单位 | 1.Univ Minnesota, Dept Geol & Geophys, Inst Rock Magnetism, Minneapolis, MN 55455 USA 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, QS,Banerjee, SK,Jackson, MJ,et al. Effects of low-temperature oxidation on natural remanent magnetization of Chinese loess[J]. CHINESE SCIENCE BULLETIN,2002,47(24):2100-2105. |
| APA | Liu, QS,Banerjee, SK,Jackson, MJ,Zhu, RX,&Pan, YX.(2002).Effects of low-temperature oxidation on natural remanent magnetization of Chinese loess.CHINESE SCIENCE BULLETIN,47(24),2100-2105. |
| MLA | Liu, QS,et al."Effects of low-temperature oxidation on natural remanent magnetization of Chinese loess".CHINESE SCIENCE BULLETIN 47.24(2002):2100-2105. |
入库方式： OAI收割
来源：地质与地球物理研究所
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