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Characterization of Morphological Features of Soil Micas Using Scanning Electron Microscopy

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Clays and Clay Minerals

Abstract

Morphological changes occurring in naturally weathered micas in seven residual soils from Ontario were studied. Splitting, exfoliation of th. (100) planes, surface coats, filling of spaces with soil material as well as cracking and crumbling o. (001) surfaces were the main morphological changes found to be taking place during natural weathering of mica particles. The significance of the observed feature in relation to the general theory of mica weathering is discussed.

Резюме

Изучались морфологические изменения,наблюдающиеся в естественно выветренных слюдах в семи образцах элювия,отобранных в Онтарио. Было обнаружено,что расщепление,расслаивание плоскостей/100/,поверхностные покровы,заполняющие промежутки почвенным материалом,также как растрескивание и смятие поверхностей/001/ были главными морфологическими изменениями,происшедшими в период естественного выветривания частиц слюды. Обсуждается значение выявленных особенностей для общей теории выветривания слюды.

Kurzreferat

Morphologische Veränderungen,welche in natürlich verwetterten Glimmern in sieben Eluvialböden in Ontario vorkommen,wurden untersucht.Spaltung, Abblätterung de. (100) Ebenen,Oberflächendecken,das Füllen von Plätzen mit Erdmaterial wie auch Brechen und Zerbröckeln vo. (001) Oberflächen waren die hauptsächlichen morphologischen Veränderungen,welche während der natürlichen Verwetterung der Glimmerteilchen Platz nehmen. Die Bedeutung der beobachteten Eigenschaften im Vergleich zu der allgemeinen Theorie der Glimmerteilchen wird diskutiert.

Résumé

Les changements morphologiques survenant dans des micas naturellement altérés à l’air dans sept sols résiduels d’Ontario ont été étudiés. La fendaison et 1’exfoliation des plans(100), l’apparition de couches sur les surfaces, le remplissage d’espace de matière provenant du sol, ainsi que le craquement et l’émiettement des surfaces(001) étaient les principaux changements morphologiques survenant pendant l’altération naturelle des particules de mica à l’air. La signification de cette observation est discutée en relation avec la théorie générale de l’altération du mica.

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  1. Department of Land Resource Science, University of Guelph, Guelph, Ontario, N1G 2W1, Canada

    J. G. Tarzi & R. Protz

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  1. J. G. Tarzi
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  2. R. Protz
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Tarzi, J.G., Protz, R. Characterization of Morphological Features of Soil Micas Using Scanning Electron Microscopy. Clays Clay Miner. 26, 352–360 (1978). https://doi.org/10.1346/CCMN.1978.0260506

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  • DOI: https://doi.org/10.1346/CCMN.1978.0260506

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