Glaciohydraulic supercooling in former ice sheets?

Grahame J. Larson, Daniel E. Lawson, Edward B. Evenson, Richard B. Alley, Óskar Knudsen, Mathew S. Lachniet, Staci L. Goetz

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

Glaciohydraulic supercooling has been observed at many modern glaciers and has been shown to generate thick zones of debris-laden basal ice which, when exposed to melting, can produce debris-flow and melt-out till deposits, as well as hummocky terrain. Glaciohydraulic supercooling probably occurred in former continental ice sheets, especially where ice flowed out of deep basins, or up steep slopes. Evidence to support glaciohydraulic supercooling in former ice sheets, however, is limited but may include sedimentary sequences of melt-out till and debris-flow deposits and hummocky terrain along the distal rim of overdeepenings and crests of adverse bed slopes.

Original languageEnglish (US)
Pages (from-to)20-32
Number of pages13
JournalGeomorphology
Volume75
Issue number1-2 SPEC. ISS.
DOIs
StatePublished - Apr 2006

All Science Journal Classification (ASJC) codes

  • Earth-Surface Processes

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