Advertisement

Clays and Clay Minerals

, Volume 26, Issue 6, pp 448–451 | Cite as

The Occurrence of Lepidocrocite in Two Well-Drained Ontario Soils

  • J. G. Tarzi
  • R. Protz
Article

Abstract

Lepidocrocite was identified associated with mica particles and in the clay fraction of two well-drained Ontario soils developed on a granite and a granite-gneiss. The occurrence of lepidocrocite is rare outside the tropics and there are no reports on its existence in well-drained soils.

Key Words

Anaerobic Iron Goethite Lepidocrocite Soil 

Абстракция

Лепидокрокит был обнаружен в ассоциации с частицами слюды и в глинистых фракциях двух хорошо дренированных разновидностях почв из Онтарио, развитых на граните и гранито-гнейсе. Лепидокрокит редко встречается вне тропиков, и до сих пор не было сообщений о его существовании в хорошо дренированных почвах.

Zusammenfassung

Es wurde gefunden,daß Lepidokrokit mit Glimmerteilchen verbunden ist und in den Tonfraktionen von zwei gut entwässerten Ontarioerden, auf einem Granit und Granitgneis entwickelt, vorkommt. Das Vorkommen von Lepidokrokit außerhalb der Tropen ist selten und es gibt keine Berichte über seine Existenz in gut entwässerten Erden.

Résumé

La lepidocrocite a été identifiée associée avec des particules de mica et dans les fractions argileuses de deux sols bien drainés d’ Ontario, développés sur un granite et un granite-gneiss. On trouve rarement la lepidocrocite en dehors des tropiques et il n’y a pas de rapport de son existence dans des sols bien drainés.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Brown, G. (1953) The occurrence of lepidocrocite in some British soils: J. Soil Sci. 4, 220–229.CrossRefGoogle Scholar
  2. Chesworth, W. (1975) The system SiO2-AlOOH-Fe2O3-H2O and the kaolinite stage of the goethite facies: Clays & Clay Minerals 23, 389–392.CrossRefGoogle Scholar
  3. Deer, W. A., Howie, R. A. and Zussman, J. (1962) Rock Forming Minerals: Longmans, Green and Co., London.Google Scholar
  4. Fitzpatrick, E. A. (1971) Pedology: Oliver and Body, Edinburgh.Google Scholar
  5. Fordham, A. W. (1970) Sorption and precipitation of iron on Kaolinite-II. The solubility of iron (III) hydroxide precipitated in the presence of kaolinite: Aust. J. Soil Res. 8, 107–122.CrossRefGoogle Scholar
  6. Gillespie, J. E. and Protz, R. (1969) Evidence for the residual character of two soils, one on granite, the other on limestone in Peterborough County, Ontario: Can. J. Soil Sci. 6, 1217–1225.Google Scholar
  7. Hewitt, D. F. (1960) Nepheline syenite deposits of southern Ontario: Ont. Dep. Mines LXIX, Part 8.Google Scholar
  8. Jackson, M. L. (1964) Chemical composition of soils In Chemistry of the Soil (Edited by Bear, F. E.), pp. 71–141. Reinhold Publishing Corp., New York.Google Scholar
  9. Oosterhout van, G. W. (1967) The transformation of γ-FeO(OH) to α-FeO(OH): J. Inorg. Nucl. Chem. 29, 1235–1238.CrossRefGoogle Scholar
  10. Pawluk, S. (1971) Characteristics of Fera Eluviated Gleysols developed from acid shales in northwestern Alberta. Can. J. Soil Sci. 51, 113–124.CrossRefGoogle Scholar
  11. Peacock, M. A. (1942) On goethite and lepidocrocite: Trans. R. Soc. Can. Sect. 3. 36, 107.Google Scholar
  12. Protz, R., Gillespie, J. E. and Brewer, R. (1974) Micromorphology and genesis of four soils derived from different rocks in Peterborough County, Ontario, Canada: Soil Microscopy: Proc. 4th Int. Working-Meeting on Soil Micromorphology, Kingston, Ontario, 1973, pp. 481–497.Google Scholar
  13. Rooksby, H. P. (1961) Oxides and hydroxides of aluminium and iron. In The X-ray Identification and Crystal Structures of Clay Minerals (Edited by Brown, G.), pp. 354–392. Mineral. Soc, London.Google Scholar
  14. Schwertmann, V. (1973) Electron micrographs of soil lepidocrocites: Clay Miner. 10, 59–63.CrossRefGoogle Scholar
  15. Schwertmann, V. and Taylor, R. M. (1972a) The transformation of lepidocrocite to goethite: Clays & Clay Minerals 20, 151–158.CrossRefGoogle Scholar
  16. Schwertmann, V. and Taylor, R. M. (1972b) The influence of silicate on the transformation of lepidocrocite to goethite: Clays & Clay Minerals 20, 159–164.CrossRefGoogle Scholar
  17. Schwertmann, V. and Thalmann, H. (1976) The influence of [Fe(II)], [Si], and pH on the formation of lepidocrocite and ferrihydrite during oxidation of aqueous FeCl2 solutions: Clay Miner. 11, 189–200.CrossRefGoogle Scholar
  18. Tarzi, J. G. (1976) Weathering of mica minerals in selected Ontario soils: Ph.D. thesis, Land Resource Science, University of Guelph, Guelph, Ontario.Google Scholar
  19. Taylor, R. M. and Schwertmann, V. (1974) Maghemite in soils and its origin—II. Maghemite synthesis at ambient temperature and pH 7: Clay Miner. 10, 299–310.CrossRefGoogle Scholar

Copyright information

© The Clay Minerals Society 1978

Authors and Affiliations

  • J. G. Tarzi
    • 1
  • R. Protz
    • 1
  1. 1.Department of Land Resource ScienceUniversity of GuelphGuelphCanada

Personalised recommendations