Geology and geotechnics of some till deposits in east Calgary, Alberta

H. Heinz

In the proceedings of: GeoVancouver 2016: 69th Canadian Geotechnical Conference

Session: FUNDAMENTALS - II Engineering Geology & Geomorphology

ABSTRACT: The City of Calgary lies along the line of confluence of the Cordilleran and Laurentide ice sheets which together covered most of Canada during the last glaciation. Geological maps and stratigraphic sections published by the ARC - Alberta Research Council (Moran, 1986) present a complex interpretation with six overlapping till formations, differentiated primarily on the basis of differences in composition not normally recorded in geotechnical investigations. This paper presents a critical review of the ARC interpretations, as well as geotechnical data and field observations from three sites in eastern Calgary, and suggests an alternate, simpler stratigraphic history for this area of Calgary.

RÉSUMÉ: La Vère et du grand inlandsis Laurentidien qui recouvraient la plus grande partie du Canada lors de la dernière période de glaciation. Les cartes géologiques et les sections -Alberta Research Concil (Moran, 1986) se révèlent six formations de till se chevauchant, attribuées principalement sur la base de différences dans leur composition qui ne ritique des

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