Stratigraphy and correlation of the glacial deposits on the Montana Plains
Till units representing at least three pre-Illinoian continental glaciations, at least one Illinoian glaciation, and a late Wisconsin glaciation have been identified on the Montana Plains. Early Wisconsin or middle Wisconsin till units have not been identified. The southernmost limit of late Wisconsin glaciation is in Montana, more than 170 km south of the Lethbridge moraine in Alberta, Canada (Figs 1 and 2). An interpretation that the Lethbridge moraine is the limit of late Wisconsin glaciation (Stalker, 1977, 1980, 1983b; Stalker and Harrison, 1977; Rutter, 1980, 1981; Jackson, 1983) is incompatible with stratigraphic and morphologic evidence from Montana. ?? 1986.
Citation Information
Publication Year | 1986 |
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Title | Stratigraphy and correlation of the glacial deposits on the Montana Plains |
Authors | D. S. Fullerton, R. B. Colton |
Publication Type | Article |
Publication Subtype | Journal Article |
Series Title | Quaternary Science Reviews |
Index ID | 70014662 |
Record Source | USGS Publications Warehouse |