Grain-size characterization of reworked fine-grained aeolian deposits

doi:10.1016/j.earscirev.2017.11.005

IEECAS OpenIR > 黄土与第四纪地质国家重点实验室（2010~）

	Grain-size characterization of reworked fine-grained aeolian deposits
	Vandenberghe, J.1; Sun, Y.2; Wang, X.3; Abels, H. A.4; Liu, X.2
	2018-02-01
发表期刊	EARTH-SCIENCE REVIEWS
卷号	177 期号:2018 页码:43-52
文章类型	Article
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.
关键词	Grain Size Aeolian Loess Reworked Loess
WOS标题词	Science & Technology ; Physical Sciences
DOI	10.1016/j.earscirev.2017.11.005
关键词[WOS]	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
收录类别	SCI
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000426409200005
引用统计	被引频次：83[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/5193
专题	黄土与第四纪地质国家重点实验室（2010~）
作者单位	1.Vrije Univ Amsterdam, Inst Earth Sci, De Boelelaan 1085, NL-1081 HV Amsterdam, Netherlands 2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Shaanxi, Peoples R China 3.Nanjing Univ, Sch Geog & Oceanog Sci, Nanjing 210023, Jiangsu, Peoples R China 4.Delft Univ Technol, Dept Geosci & Engn, Stevinweg 1, NL-2628 CN Delft, Netherlands
推荐引用方式 GB/T 7714	Vandenberghe, J.,Sun, Y.,Wang, X.,et al. Grain-size characterization of reworked fine-grained aeolian deposits[J]. EARTH-SCIENCE REVIEWS,2018,177(2018):43-52.
APA	Vandenberghe, J.,Sun, Y.,Wang, X.,Abels, H. A.,&Liu, X..(2018).Grain-size characterization of reworked fine-grained aeolian deposits.EARTH-SCIENCE REVIEWS,177(2018),43-52.
MLA	Vandenberghe, J.,et al."Grain-size characterization of reworked fine-grained aeolian deposits".EARTH-SCIENCE REVIEWS 177.2018(2018):43-52.

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