| Spatial variations in paleowind direction during the last glacial period in north China reconstructed from variations in the anisotropy of magnetic susceptibility of loess deposits | |
| Ge, Junyi1,2,3; Guo, Zhengtang2; Zhao, Deai2; Zhang, Ying4; Wang, Tao4; Yi, Liang5; Deng, Chenglong5; Ge, JY (reprint author), Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins Chinese, Beijing 100044, Peoples R China. | |
| 2014-08-26 | |
| 发表期刊 | TECTONOPHYSICS
 |
| ISSN | 0040-1951 |
| 卷号 | 629期号:629页码:353-361 |
| 文章类型 | Article |
| 摘要 | Anisotropy of magnetic susceptibility (AMS) of Chinese loess is considered to be an effective tool for determining paleowind direction. However, the relationship between AMS and the paleowind direction is still a matter of debate. This study reports the results of AMS measurements of Chinese loess deposited during the last glacial period on slopes of varying slope angles and orientations. The sites are located on the Chinese Loess Plateau, in West Qinling, and on the eastern margin of Qilian Mountain. The results show that within the same region, magnetic lineations are clustered along similar orientations despite differences in slope exposure and slope angle, but that different regions exhibit different directions of magnetic lineation. These results suggest that the alignment of the magnetic grains during deposition of the eolian deposits was determined by air circulation rather than by water flow on the surface of the slopes, and therefore that the AMS of Chinese loess can be used to determine paleowind directions. In addition, our results indicate that the AMS of Chinese loess is determined mainly by the patterns of regional surface wind flow that occurred during dust accumulation rather than by the uniform pattern of large-scale atmospheric circulation. In addition, since wind direction is influenced significantly by regional topography, the AMS of Chinese loess may have the potential to detect significant changes in past regional topography. (C) 2014 Elsevier B.V. All rights reserved. |
| 关键词 | Anisotropy Of Magnetic Susceptibility Surface Wind East Asian Monsoon Regional Topography |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 关键词[WOS] | NORTHEASTERN TIBETAN PLATEAU ; MONSOON VARIATIONS ; UPLIFT ; SEQUENCE ; PALEOMONSOON ; STRATIGRAPHY ; ACCUMULATION ; DEFORMATION ; PALEOSOLS ; SEDIMENTS |
| 收录类别 | SCI |
| 语种 | 英语 |
| 项目资助者 | National Natural Science Foundation of China [41372362, 41002125]; National Basic Research Program of China [2010CB950200]; State Key Laboratory of Paleobiology and Stratigraphy (Nanjing Institute of Geology and Paleontology, CAS) [133105] |
| WOS研究方向 | Geochemistry & Geophysics |
| WOS类目 | Geochemistry & Geophysics |
| WOS记录号 | WOS:000341474600028 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.205/handle/311034/5135 |
| 专题 | 古人类及旧石器研究室 |
| 通讯作者 | Ge, JY (reprint author), Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins Chinese, Beijing 100044, Peoples R China. |
| 作者单位 | 1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins Chinese, Beijing 100044, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China 3.Chinese Acad Sci, Nanjing Inst Geol & Paleontol, State Key Lab Paleobiol & Stratig, Nanjing 210008, Jiangsu, Peoples R China 4.Chinese Acad Sci, Inst Atmospher Phys, Nansen Zhu Int Res Ctr, Beijing 100029, Peoples R China 5.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ge, Junyi,Guo, Zhengtang,Zhao, Deai,et al. Spatial variations in paleowind direction during the last glacial period in north China reconstructed from variations in the anisotropy of magnetic susceptibility of loess deposits[J]. TECTONOPHYSICS,2014,629(629):353-361. |
| APA | Ge, Junyi.,Guo, Zhengtang.,Zhao, Deai.,Zhang, Ying.,Wang, Tao.,...&Ge, JY .(2014).Spatial variations in paleowind direction during the last glacial period in north China reconstructed from variations in the anisotropy of magnetic susceptibility of loess deposits.TECTONOPHYSICS,629(629),353-361. |
| MLA | Ge, Junyi,et al."Spatial variations in paleowind direction during the last glacial period in north China reconstructed from variations in the anisotropy of magnetic susceptibility of loess deposits".TECTONOPHYSICS 629.629(2014):353-361. |
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