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Morphology of allophane, imogolite and halloysite

Published online by Cambridge University Press:  09 July 2018

H. Eswaran
H. Eswaran*
Affiliation:
Geological Institute, Rozier 44, Ghent, Belgium
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Abstract

Volcanic ash soils were studied with the scanning electron microscope to observe the morphology and occurrence of allophane, imogolite and halloysite. Allophane and imogolite in general were randomly distributed indicating a process of dissolution and recrystallization. Halloysite is typically associated with feldspars showing that it is formed by direct alteration.

The imogolite fibres studied with the SEM show them to be much thicker than currently reported in the literature and it is thought that pretreatment of the clays for TEM measurements results in a partial destruction. Halloysite consists typically of short rigid tubes and thus differs from imogolite which tends to curl.

Type
Research Article
Information
Clay Minerals , Volume 9 , Issue 3 , July 1972 , pp. 281 - 285
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1972

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References

Aomine, S. & Miyauchi, N. (1965) Soil Sci. PI. Nutr., Tokyo, 41, 212.Google Scholar
Bohor, B.F. & Hughes, R.F. (1971) Clays Clay Miner. 19, 49.Google Scholar
Borst, R.L. & Keller, W.D. (1969) Proc. Int. Clay Conf., Tokyo, 871.Google Scholar
Eswaran, H. & De Coninck, F. (1971) Pedologie, Gand, 21, 181.Google Scholar
Fleischer, M. (1963) Am. Miner. 48, 434.Google Scholar
Jaritz, G. (1967) Z. Pfl-Ernahr. Diing Bodenk. 117, 65.CrossRefGoogle Scholar
Kobo, K. & Oba, Y. (1961) Trans. Congr. Sci. Soil and Manure, Japan, 7, 35.Google Scholar
Kobo, K., Oba, Y. & Obht, K. (1962) Trans. Congr. Sci. Soil and Manure, Japan, B, 15.Google Scholar
Miyauchi, N. & Aomine, S. (1966) Soil Sci. PI. Nutr. Tokyo, 12, 187.Google Scholar
Parham, W.E. (1964) Clays Clay Miner. 17, 13.Google Scholar
Russell, J.D., McHardy, W.J. & Fraser, A.R. (1969) Clay Miner. 8, 87.Google Scholar
Wada, K. (1966) SoilPl. Fd., Tokyo, 12, 176.Google Scholar
Wada, K. (1967) Am. Miner. 52, 690.Google Scholar
Yoshtnaga, N. & Aomine, S. (1962) Soil Sci. PI. Nutr., Tokyo, 8, 114.Google Scholar
Yoshinaoa, N., Yotsumoto, H. & Ibe, K. (1968) Am. Miner. 53, 319.Google Scholar