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Multiple ice flow directions during the Fraser Glaciation in the lower Skagit River drainage, northern Cascade Range, Washington.

Arctic & Alpine Research

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Abstract

Glacier reconstructions suggest that till exposed at one site in the lower Skagit Valley was deposited by a Baker Valley glacier that flowed westward down the Skagit Valley during the early part of the Fraser Glaciation (Evans Creek Stade). Stratigraphic relations show that the Cordilleran Ice Sheet subsequently advanced up the Skagit Valley and into the Baker Valley during the Vashon Stade. Flow-direction indicators, as well as clast compositional variations in till and recessional deposits of Vashon age, indicate that this upvalley, eastward-advancing glacier was later overwhelmed by south-east-flowing ice of the Cordilleran Ice Sheet which entered the Baker Valley across the valley divide to the northwest. -from Author

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Multiple ice flow directions during the Fraser Glaciation in the lower Skagit River drainage, northern Cascade Range, Washington.
Series title:
Arctic & Alpine Research
Volume
12
Issue:
3
Year Published:
1980
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Arctic & Alpine Research
First page:
299
Last page:
308
Number of Pages:
10