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Is silt the most influential soil grain size fraction?

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Parry, S. P., Hodson, M. E., Oelkers, E. H. and Kemp, S. J. (2011) Is silt the most influential soil grain size fraction? Applied Geochemistry, 26 (Supple). S119-S122. ISSN 0883-2927

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To link to this article DOI: 10.1016/j.apgeochem.2011.03.045

Abstract/Summary

The contribution of individual grain size fractions (2000–500, 500–250, 250–63, 63–2 and < 2 μm) to bulk soil surface area and reactivity is discussed with reference to mineralogical and oxalate and dithionite extractions data. The 63–2 μm fraction contributed up to 56% and 67% of bulk soil volume and BET surface area, respectively. Consideration of these observations and the mineralogy of this fraction suggest that the 63–2 μm fraction may be the most influential for the release of elements via mineral dissolution in the bulk soil.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Science > School of Archaeology, Geography and Environmental Science > Department of Geography and Environmental Science
Interdisciplinary centres and themes > Soil Research Centre
Faculty of Science > School of Archaeology, Geography and Environmental Science > Earth Systems Science
ID Code:20340
Uncontrolled Keywords:grain size, surface area, volume fraction, mineralogy, surface coatings
Publisher:Elsevier

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