Skip to Main Content
GEOREF RECORD

Aluminium solubility characteristics of spodic B horizons containing imogolite-type materials

J. P. Gustafsson, D. G. Lumsdon and M. Simonsson
Aluminium solubility characteristics of spodic B horizons containing imogolite-type materials (in Clay minerals in the modern society, D. C. Bain (editor))
Clay Minerals (March 1998) 33 (1): 77-86

Abstract

Fifteen Swedish and Finnish soil samples from spodic B horizons containing imogolite-type materials were equilibrated with dilute NaCl and HCl at 8 degrees C. For the NaCl extracts, apparent equilibrium with respect to an Al(OH) (sub 3) phase was reached in one to two weeks. Equilibrium with respect to an imogolite-type phase was slower, especially at large soil:solution ratios. The results show that log *K (sub s) (gibbsite), i.e. the logarithm of the solubility constant for reactive Al(OH) (sub 3) at 8 degrees C, was approximately 9.40 (8.29 at 25 degrees C) while log *K (sub s) (imogolite) was variable; for the soil studied in most detail it was 7.66 (6.64 at 25 degrees C). As well-ordered gibbsite rarely forms in spodic B horizons, it is suggested that Al(OH) (sub 3) and poorly-ordered allophanic materials may be slowly converted to less soluble and less reactive imogolite-type materials.


ISSN: 0009-8558
EISSN: 1471-8030
Coden: CLMIAF
Serial Title: Clay Minerals
Serial Volume: 33
Serial Issue: 1
Title: Aluminium solubility characteristics of spodic B horizons containing imogolite-type materials
Title: Clay minerals in the modern society
Author(s): Gustafsson, J. P.Lumsdon, D. G.Simonsson, M.
Author(s): Bain, D. C.editor
Affiliation: Royal Institute of Technology, Division of Land and Water Resources, Stockholm, Sweden
Affiliation: Macaulay Land Use Reserch Institute, Aberdeen, United Kingdom
Pages: 77-86
Published: 199803
Text Language: English
Publisher: Mineralogical Society, London, United Kingdom
Meeting name: Rosenqvist symposium
Meeting location: University of Oslo, NOR, Norway
Meeting date: 19960519May 21, 1996
References: 35
Accession Number: 1998-075270
Categories: Geochemistry of rocks, soils, and sedimentsSedimentary petrology
Document Type: Serial Conference document
Bibliographic Level: Analytic
Illustration Description: illus. incl. 3 tables
Secondary Affiliation: Macaulay Land Use Research Institute, GBR, United KingdomSwedish University of Agricultural Sciences, SWE, Sweden
Country of Publication: United Kingdom
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland
Update Code: 199824
Close Modal
This Feature Is Available To Subscribers Only

Sign In or Create an Account

Close Modal
Close Modal