Abstract: Pawluk, S., 1983. Fabric sequences as related to genetic processes in two Alberta soils. Geoderma, 30: 233-242. Terminology based on fabric sequences as proposed recently by Brewer (1979) was found useful for describing microfabrics in Alberta soils since it established a basis of study compatible with field morphological descriptions. The recognized fabric sequences were: granic, fragmic, chlamydic, and iunctic. Each sequence represented a continuum of fabric types distinguished on the basis of related distribution between fine and coarse materials. Attempts have been made to unify specific fabric types within each of the sequences on the basis of material composition and genetic processes. Since soil horizons were pedogenically generated as well, they in turn could usually be characterized by a single dominant fabric sequence. In our studies we found the granic sequence of fabric to characterize mull layers. The fragmic fabric sequence was more common in subsurface horizons of fine texture. The chlamydic fabric sequence was best developed in spodic and argillic horizons of coarse texture. A well developed iunctic sequence was found in moder as well as in coarse textured highly calcareous horizons. Fabric types within each of the recognized sequences were highly variable in time and/or space within their respective horizons. © 1983.
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