Gauss-Matuyama polarity transition obtained from a loess section at Weinan, North-Central China
文献类型：期刊论文
| 作者 | Zhu, RX; Guo, B; Ding, ZL; Guo, ZT; Kazansky, A; Matasova, G |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2000-09-01 |
| 卷号 | 43期号:5页码:621-634 |
| ISSN号 | 0001-5733 |
| 关键词 | polarity transition loess Weinan relative intensity |
| 文献子类 | Article |
| 英文摘要 | A record of Gauss-Matuyama (G/M) geomagnetic polarity transition has been obtained from a loess section at Weinan. Shaanxi Province in China. Grain size and weathering intensity analysis demonstrate a rather weak pedogenesis in the oldest loess unit L33 was deposited. Rock-and paleo-magnetic investigations indicate that the remanent magnetization is mainly carried by magnetite and maghemite deposited as detrital grains. The record of the polarity transition based on ChRM directions of the low coercivity magnetic phase comprises 33 transitional directions. A pre-transitional excursion defined by 4 intermediate directions and lasting about 2.2 +/- 0.13 ka appears to have occurred prior to the G/M polarity transition. Then, the record displays a N-S-N cycle with VGPs locating principally on American and Eastern-Asia longitudes. Finally, the reverse polarity is established with VGPs clustering in the Atlantic near southern Africa. The total duration of the directional change for the G/M transitions at Weinan, as derived from independent loess accumulation ratios, is about 9.43 +/- 0.64. During the G-M polarity transition, the decrease in field intensity occurs. |
| WOS关键词 | GEOMAGNETIC REVERSAL PATHS ; RECORDS ; FIELD ; MAGNETOSTRATIGRAPHY ; DEPOSITION ; PALEOSOLS ; SEDIMENTS ; BOUNDARY ; BRUNHES ; PLATEAU |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| 出版者 | SCIENCE PRESS |
| WOS记录号 | WOS:000089698500006 |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/76087]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Zhu, RX |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100101, Peoples R China 2.Russian Acad Sci, Siberian Branch, UIGGM, Inst Geol, Novosibirsk, Russia |
| 推荐引用方式 GB/T 7714 | Zhu, RX,Guo, B,Ding, ZL,et al. Gauss-Matuyama polarity transition obtained from a loess section at Weinan, North-Central China[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2000,43(5):621-634. |
| APA | Zhu, RX,Guo, B,Ding, ZL,Guo, ZT,Kazansky, A,&Matasova, G.(2000).Gauss-Matuyama polarity transition obtained from a loess section at Weinan, North-Central China.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,43(5),621-634. |
| MLA | Zhu, RX,et al."Gauss-Matuyama polarity transition obtained from a loess section at Weinan, North-Central China".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 43.5(2000):621-634. |
入库方式： OAI收割
来源：地质与地球物理研究所
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