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(Article of periodic en Anglais - 1999)

Document title

Evidence for coalescence of Laurentide and Rocky Mountain glaciers east of Glacier National Park, Montana

Authors(s) and Affiliation(s)

KARLSTROM E.T. ;

Abstract

Evidence indicates that Laurentide and Rocky Mountain piedmont glaciers coalesced in the Willow Creek drainage east of Glacier National Park. Based on relative soil development, alpine tills in the North Fork of the Milk River could be two ages (late Wisconsin and earlier Wisconsin or late Illinoian?), suggesting two distinct coalescence events. However, identifying provenance of surficial deposits can be problematic owing to the repeated mixing of sediments, which undoubtedly occurred in unstable proglacial environments. In particular, granite erratics, probably ice-rafted, commonly mantle landforms not constructed by the Laurentide glacier(s)

Source

Article of periodic

published at : Physical geography / ISSN 0272-3646

Editor : Taylor & Francis, Abingdon - ROYAUME-UNI (1980)

Millesime : 1999, vol. 20, no3 [pp. 225-239]

Bibliographic references : 35 ref.

Collation : Illustration ;

Language

Anglais

Localisation

American geological institute

INIST-CNRS, Cote INIST : 20106

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2000.
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