A short, reverse polarity interval within the Jaramillo subchron: Evidence from the Jingbian section, northern Chinese Loess Plateau
文献类型：期刊论文
| 作者 | Guo, B; Zhu, RX; Florindo, F; Ding, ZL; Sun, JM |
| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
 |
| 出版日期 | 2002-06-01 |
| 卷号 | 107期号:B6 |
| 关键词 | Chinese loess Jingbian section magnetostratigraphy Jaramillo |
| ISSN号 | 2169-9313 |
| DOI | 10.1029/2001JB000706 |
| 文献子类 | Article |
| 英文摘要 | [1] A high-resolution paleomagnetic and rock magnetic investigation supported by scanning electron microscopy observations, X-ray diffraction determinations, and anisotropy of magnetic susceptibility analyses has been carried out on a loess-paleosol sequence from Jingbian (37.4degreesN, 108.8degreesE), at the northern extremity of the Chinese Loess Plateau. The results indicate that the magnetic assemblage is dominated by pseudo-single-domain magnetite with associated maghemite and traces of a higher-coercivity phase, probably hematite. The Brunhes-Matuyama and upper Jaramillo transitions have been carefully documented and a record of a short reverse polarity interval (SRI), entirely within the Jaramillo normal polarity subchron, has been obtained. The duration of the SRI, recorded over a stratigraphic interval of 48 cm, is 10.1 kyr (29 kyr if the polarity transitions are included). These results seem to exclude that rock magnetic variations are adversely affecting the recording process and compel us to reconsider the Jaramillo subchron as characterized by a pair of normal polarity intervals interrupted by a short reverse polarity interval. |
| WOS关键词 | ASTRONOMICAL CALIBRATION ; MATUYAMA-BRUNHES ; GRAIN-SIZE ; DEPOSITS ; RECORD ; MAGNETOSTRATIGRAPHY ; SEDIMENTS ; MAGNETISM ; SEQUENCES ; TIMESCALE |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000178990800004 |
| 出版者 | AMER GEOPHYSICAL UNION |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/77943]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Guo, B |
| 作者单位 | 1.Ist Nazl Geofis & Vulcanol, I-00143 Rome, Italy 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guo, B,Zhu, RX,Florindo, F,et al. A short, reverse polarity interval within the Jaramillo subchron: Evidence from the Jingbian section, northern Chinese Loess Plateau[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,2002,107(B6). |
| APA | Guo, B,Zhu, RX,Florindo, F,Ding, ZL,&Sun, JM.(2002).A short, reverse polarity interval within the Jaramillo subchron: Evidence from the Jingbian section, northern Chinese Loess Plateau.JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,107(B6). |
| MLA | Guo, B,et al."A short, reverse polarity interval within the Jaramillo subchron: Evidence from the Jingbian section, northern Chinese Loess Plateau".JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH 107.B6(2002). |
入库方式： OAI收割
来源：地质与地球物理研究所
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