Stratigraphy and origin of an area of hummocky glacial topography, northern Wisconsin, U.S.A.
The Winegar Phase of the Wisconsin Glaciation produced a band of hummocky glacial topography in northern Wisconsin. Some hummocks are composed of flow till and somewhat sorted till-like debris-flow sediment. These hummocks formed when ice melted beneath a cover of debris that flowed to its present position. Other hummocks contain interlayered lodgement and meltout till, flow till, debris-flow and slopewash sediment, lake, and meltwater-stream sediment. These hummocks formed where sediment was stacked near the ice margin. In other hummocks till and supraglacial debris-flow and slopewash sediment deposited during the Winegar Phase form a thin veneer over older meltwater-stream sediment. These hummocks formed when ice buried in pre-Winegar Phase stream sediment melted, and the overlying sediment collapsed. ?? 1993.
Citation Information
Publication Year | 1993 |
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Title | Stratigraphy and origin of an area of hummocky glacial topography, northern Wisconsin, U.S.A. |
DOI | 10.1016/1040-6182(93)90054-J |
Authors | J.W. Attig, L. Clayton |
Publication Type | Article |
Publication Subtype | Journal Article |
Series Title | Quaternary International |
Index ID | 70017351 |
Record Source | USGS Publications Warehouse |