Grain-size characterization of reworked fine-grained aeolian deposits
文献类型：期刊论文
| 作者 | Abels, H. A.3; Wang, X.2; Sun, Y.1; Vandenberghe, J.4; Liu, X.1 |
| 刊名 | EARTH-SCIENCE REVIEWS
 |
| 出版日期 | 2018-02-01 |
| 卷号 | 177期号:2018页码:43-52 |
| 关键词 | Grain Size Aeolian Loess Reworked Loess |
| DOI | 10.1016/j.earscirev.2017.11.005 |
| 文献子类 | Article |
| 英文摘要 | After a previous review of the grain-size characteristics of in situ (primary) fine-grained aeolian deposits, reworked (secondary) aeolian deposits, as modified in lacustrine environments and by alluvial and pedogenic processes, are discussed in this paper. As a reference, the grain-size characteristics of primary loess deposits are shortly described. Commonly, pedogenesis and weathering of primary loess may lead to clay neoformation and thus to an enrichment in grain diameters of 4-8 mu m, a size which is comparable to the fine background loess. Remarkably, the modal grain-size values of primary loess are preserved after re -deposition in lakes and flood plains. But, secondary lacustrine settings show a very characteristic admixture with a clayey population of 1-2,5 mu m diameter due to the process of settling in standing water. Similarly, alluvial settings show often an addition with coarse-grained sediment supplied by previously eroded sediment. However, floodplain settings show also often the presence of pools and other depressions which behave similarly to lacustrine environments. As a result, alluvial secondary loess sediments are characterized by the poorest grain-size sorting when compared with the other secondary loess and primary loess. Despite the characteristic texture of each of these deposits, grain-size characteristics of the described individual sediment categories are not always fully diagnostic and thus grain-size analysis should be complemented by other information, as sedimentary structures and fauna or flora, to reliably reconstruct the sedimentary processes and environments. |
| WOS关键词 | CHINESE LOESS PLATEAU ; LATE PLEISTOCENE LOESS ; ASIAN WINTER MONSOON ; NE TIBETAN PLATEAU ; RED CLAY DEPOSITS ; PALEOSOL SEQUENCES ; ATMOSPHERIC CIRCULATION ; MAGNETIC-SUSCEPTIBILITY ; LASER-DIFFRACTION ; NORTHERN SERBIA |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000426409200005 |
| 源URL | [http://ir.ieecas.cn/handle/361006/5193]  |
| 专题 | 地球环境研究所_黄土与第四纪地质国家重点实验室（2010~） |
| 作者单位 | 1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Shaanxi, Peoples R China 2.Nanjing Univ, Sch Geog & Oceanog Sci, Nanjing 210023, Jiangsu, Peoples R China 3.Delft Univ Technol, Dept Geosci & Engn, Stevinweg 1, NL-2628 CN Delft, Netherlands 4.Vrije Univ Amsterdam, Inst Earth Sci, De Boelelaan 1085, NL-1081 HV Amsterdam, Netherlands |
| 推荐引用方式 GB/T 7714 | Abels, H. A.,Wang, X.,Sun, Y.,et al. Grain-size characterization of reworked fine-grained aeolian deposits[J]. EARTH-SCIENCE REVIEWS,2018,177(2018):43-52. |
| APA | Abels, H. A.,Wang, X.,Sun, Y.,Vandenberghe, J.,&Liu, X..(2018).Grain-size characterization of reworked fine-grained aeolian deposits.EARTH-SCIENCE REVIEWS,177(2018),43-52. |
| MLA | Abels, H. A.,et al."Grain-size characterization of reworked fine-grained aeolian deposits".EARTH-SCIENCE REVIEWS 177.2018(2018):43-52. |
入库方式： OAI收割
来源：地球环境研究所
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