Is silt the most influential soil grain size fraction?

S. A. Parry, M. E. Hodson, E. H. Oelkers, S. J. Kemp

Research output: Contribution to journalArticlepeer-review


The contribution of individual grain size fractions (2000-500, 500-250, 250-63, 63-2 and < 2 mu m) to bulk soil surface area and reactivity is discussed with reference to mineralogical and oxalate and dithionite extractions data. The 63-2 mu m 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 mu m fraction may be the most influential for the release of elements via mineral dissolution in the bulk soil. (C) 2011 Elsevier Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)S119-S122
Number of pages4
JournalApplied Geochemistry
Issue numberSUPPL.
Early online date22 Mar 2011
Publication statusPublished - Jun 2011

Bibliographical note

©2011, Elsevier Ltd.

Cite this