Arid
DOI10.1016/j.sedgeo.2005.06.011
The formation of silt material for terrestrial sediments: Particularly loess and dust
Smalley, IJ; Kumar, R; Dhand, KO; Jefferson, IF; Evans, RD
通讯作者Jefferson, IF
来源期刊SEDIMENTARY GEOLOGY
ISSN0037-0738
EISSN1879-0968
出版年2005
卷号179期号:3-4页码:321-328
英文摘要

There are certain controls which operate to demarcate the nature and size range of quartz particles in terrestrial detrital sediments. The particles fall into discrete and definable populations, which are separated by ’Tanner gaps’. Quartz sand nature is determined largely by a eutectic-like reaction, which takes place in the original igneous rock. This reaction delivers a fine mix of quartz and feldspar units, which on weathering deliver quartz sand. The formation of quartz silt is more contentious; it appears that silt production is essentially controlled by the presence in larger quartz particles of ’Moss defects’, crystalline defects introduced into the quartz structure by earlier events, e.g. the high-low displacive transformation in cooling quartz. There appear to be two modes in airborne quartz particles (which have been called large dust and small dust). The larger mode is the loess mode (around 20-60 mu m) and the smaller mode falls into the classification with high-level, long-travel dust (mode around 2-6 mu m). The quartz in small dust is around the same size as the clay mineral agglomerate particles (CMA) which form a considerable proportion of high level dust clouds. The CMA particles form from lake deposits; the size is controlled by the openness of the packing in the lake sediments. This can be demonstrated by a simple Monte Carlo model. (c) 2005 Elsevier B.V. All rights reserved.


英文关键词sand silt clay sedimentary particles clay material agglomerates Monte Carlo lacustrine structures Aeolian dust loess
类型Article
语种英语
国家England
收录类别SCI-E
WOS记录号WOS:000232043800009
WOS关键词DESERT LOESS ; GLACIAL LOESS ; QUARTZ SILT ; DEPOSITS ; SAND ; ORIGIN
WOS类目Geology
WOS研究方向Geology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/150366
作者单位(1)Univ Birmingham, Sch Engn, Birmingham B15 2TT, W Midlands, England
推荐引用方式
GB/T 7714
Smalley, IJ,Kumar, R,Dhand, KO,et al. The formation of silt material for terrestrial sediments: Particularly loess and dust[J],2005,179(3-4):321-328.
APA Smalley, IJ,Kumar, R,Dhand, KO,Jefferson, IF,&Evans, RD.(2005).The formation of silt material for terrestrial sediments: Particularly loess and dust.SEDIMENTARY GEOLOGY,179(3-4),321-328.
MLA Smalley, IJ,et al."The formation of silt material for terrestrial sediments: Particularly loess and dust".SEDIMENTARY GEOLOGY 179.3-4(2005):321-328.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Smalley, IJ]的文章
[Kumar, R]的文章
[Dhand, KO]的文章
百度学术
百度学术中相似的文章
[Smalley, IJ]的文章
[Kumar, R]的文章
[Dhand, KO]的文章
必应学术
必应学术中相似的文章
[Smalley, IJ]的文章
[Kumar, R]的文章
[Dhand, KO]的文章
相关权益政策
暂无数据
收藏/分享

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。