Nature of smectites in soils developed on basaltic saprolite and basaltic and granitic till in Nova Scotia

In Kings County Nova Scotia, soils have developed over pre-Wisconsinan basaltic saprolite and basaltic and granitic till. The clay fraction of the soil developed on the saprolite is predominantly a trioctahedral smectite and apparently has not been significantly changed by post-Wisconsinan weatherin...

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Bibliographic Details
Published in:Canadian journal of soil science 1989-11, Vol.69 (4), p.879-883
Main Authors: Rutherford, G.K, Li, L, Ross, G.J
Format: Article
Language:English
Subjects:
clay fraction
clay minerals
physicochemical properties
soil parent materials
weathering
Online Access:Get full text
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Summary:In Kings County Nova Scotia, soils have developed over pre-Wisconsinan basaltic saprolite and basaltic and granitic till. The clay fraction of the soil developed on the saprolite is predominantly a trioctahedral smectite and apparently has not been significantly changed by post-Wisconsinan weathering. The clay fraction of the Aej horizon of the soil developed on granitic till is dominantly composed of dioctahedral layer silicates, mainly mica with some montmorillonite and vermiculite, and that developed on basaltic till by smectite and vermiculite. Key words: Basaltic saprolite, trioctahedral smectite, post-Wisconsinan weathering
ISSN:0008-4271
1918-1841
DOI:10.4141/cjss89-089