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学科主题: Materials Science, Multidisciplinary; Multidisciplinary Sciences
题名: Mathematical approach to sedimentary component partitioning of polymodal sediments and its applications
作者: Sun, DH ; An, ZS ; Su, RX ; Wu, XH ; Wang, SM ; Sun, QL ; Rea, DK ; Vandenberghe, J
通讯作者: Sun, DH, Chinese Acad Sci, Xian Lab Loess & Quaternary Geol, Xian 710054, Peoples R China
关键词: grain-size components ; distribution function ; sediments ; mathematical approach
刊名: PROGRESS IN NATURAL SCIENCE
发表日期: 2001
卷: 11, 期:5, 页:374-382
收录类别: sci
部门归属: Chinese Acad Sci, Xian Lab Loess & Quaternary Geol, Xian 710054, Peoples R China; Chinese Acad Sci, S China Sea Inst Oceanol, Guangzhou 510301, Peoples R China; Univ Michigan, Dept Geol Sci, Ann Arbor, MI 48109 USA; Vrije Univ Amsterdam, Fac Earth Sci, NL-1081 HV Amsterdam, Netherlands
项目归属: 海洋地质
摘要: Most continental sediments are composed of overlapped components, whose grain-size follows a type of distribution function. The components and the function type of a sample are determined on frequency and cumulative curves of grain-size distribution so as to designate the function formula. The function parameters can be estimated by fitting designated function to measured grain-sized data of the sample, which simultaneously achieves numerical partitioning of the components. Genetic analysis of hydraulic and aeolian sediments demonstrates the following environmental implications. Fluvial sediment is composed of isolated saltation and suspension component. The sediment in drainage closed lakes is dominated by suspension silt-clay component, with little portion of saltatory sand. Fine sand component makes up a majority of desert sand overlapped with small portion of fine dust. Loess is composed of overlapped short-suspending silt component and long-suspension fine component. Long-suspension fine dust is the unique component of deep-sea aeolian sediment. The fine component shows constant grain-size distribution and genetic connection from desert sand, loess of Northern China to Northern Pacific Ocean, which is transported mainly by westerly stream and dispersed in whole stratosphere to form the background dust.
原文出处: 查看原文
WOS记录号: WOS:000168420200007
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/4700
Appears in Collections:中科院边缘海地质重点实验室_期刊论文

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Sun, DH; An, ZS; Su, RX; Wu, XH; Wang, SM; Sun, QL; Rea, DK; Vandenberghe, J.Mathematical approach to sedimentary component partitioning of polymodal sediments and its applications,PROGRESS IN NATURAL SCIENCE,2001,11(5):374-382
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