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Soil‐geomorphic Evolution of a Boroll Catena in Southwestern Alberta
Author(s) -
Pennock D. J.,
Vreeken W. J.
Publication year - 1986
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1986.03615995005000060028x
Subject(s) - pedogenesis , colluvium , geology , aeolian processes , deposition (geology) , glacial period , sediment , geomorphology , geochemistry , physical geography , earth science , soil water , soil science , alluvium , geography
The geomorphic and pedological processes that have influenced the development of a Boroll catena in south‐western Alberta are examined using a combination of sedimentological and pedological techniques. Four geomorphic episodes are responsible for the sediments in the catena: the deposition of glacial till, two colluvial episodes, and a final eolian episode that deposited a thin mantle of sediment over the landscape. The vertical and lateral distribution of grain size fractions in the landscape is largely the result of these geomorphic processes. The vertical distributions of Fe and CaCO 3 show some relict features from earlier phases of pedogenesis, whereas the organic C values appear to be related only to the present configuration of the landscape.