Arid
DOI10.1007/s10064-010-0300-4
Effect of precipitation on the geological development of badlands in arid regions
Imumorin, Peter2; Azam, Shahid1
通讯作者Azam, Shahid
来源期刊BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
ISSN1435-9529
出版年2011
卷号70期号:2页码:223-229
英文摘要

The main objective of this paper was to study the effect of precipitation on the geological development of badlands in arid regions. Field observations and laboratory investigations were carried out to characterize the surface soils of the Avonlea badlands in southern Saskatchewan, Canada, which is currently experiencing a rapid development in infrastructure. Three distinct surface sediments were identified: an upper slope of cemented sandstone, a mid-slope on weathered mudrock and a relatively flat basal pediment. Each of these soils reacts differently to rainfall events. Precipitation results in grain size reduction which, together with the consistency limits, explains the water sensitivity of the soils; the fines increased by 16% in the cemented sandstone, 78% in the weathered mudrock and 33% in the basal pediment. Erosion susceptibility was highest in the basal pediment (2% clays) followed by cemented sandstone (cementation by 6% active clays) and then by weathered mudrock (cohesion due to the 40% clay).


英文关键词Climate Avonlea Slopes Badlands Consistency limit Desiccation
类型Article
语种英语
国家Canada
收录类别SCI-E
WOS记录号WOS:000293184600006
WOS关键词EROSION ; SOILS ; SPAIN
WOS类目Engineering, Environmental ; Engineering, Geological ; Geosciences, Multidisciplinary
WOS研究方向Engineering ; Geology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/167485
作者单位1.Univ Regina, Fac Engn & Appl Sci, Regina, SK S4S 0A2, Canada;
2.SaskEnergy TransGas, Regina, SK S4P 4K5, Canada
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Imumorin, Peter,Azam, Shahid. Effect of precipitation on the geological development of badlands in arid regions[J],2011,70(2):223-229.
APA Imumorin, Peter,&Azam, Shahid.(2011).Effect of precipitation on the geological development of badlands in arid regions.BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,70(2),223-229.
MLA Imumorin, Peter,et al."Effect of precipitation on the geological development of badlands in arid regions".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT 70.2(2011):223-229.
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