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Deposition of the late Wisconsin Johnstown moraine, south-central Wisconsin

Quaternary International

By:
, , and
DOI: 10.1016/1040-6182(93)90053-I

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Abstract

The Johnstown moraine is made up of three different materials. The lower part of the sequence consists of closely spaced bodies of boulder gravel, which are cylindrical and plunge upglacier several degrees. They are interpreted to be esker bodies. They grade distally into proglacial outwash fans. The esker bodies are overlain by sandy till, some of which is uniform and some of which has colour layers. The colour layers are a few millimetres to a metre thick, drape over the eskers and dip upglacier several degrees. Both the uniform and layered till have pebbles plunging upglacier several degrees steeper than the dip of the layers. Both the uniform and layered till are interpreted to have been deposited subglacially, probably both by melting out and by lodgement. The till is overlain by a thin layer of boulder gravel interpreted to be washed supraglacial sediment. ?? 1993.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Deposition of the late Wisconsin Johnstown moraine, south-central Wisconsin
Series title:
Quaternary International
DOI:
10.1016/1040-6182(93)90053-I
Volume
18
Issue:
C
Year Published:
1993
Language:
English
Publisher:
Elsevier
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Quaternary International
First page:
53
Last page:
59
Number of Pages:
7