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Geological Survey of Canada, Paper 79-1B (Ice-scour tracks)

Publication
Wahlgren, R. V. 1979. Ice-scour tracks in eastern Mackenzie Bay and north of Pullen Island, Beaufort Sea, in Current Research, Part B, Geol. Survey of Canada, Paper 79-1B, pp. 51-62.

Abstract
Ice-scour tracks are created by ice pressure-ridge keels and ice islands scraping the seabed. Tracks visible on echosounding and side-scan sonar records obtained in depths of 25 to 50 m are analyzed quantitatively in order to understand the relationship between track form and the processes that created the tracks. A system of classification and methods for analyzing data on ice-scour tracks are presented. Seabed morphology affects the length of ice-scour tracks that can be left by a grounding keel but does not deflect the keel. In water depths less than 45 m, ice keels that are being driven upslope usually do not penetrate deeper into the seabed sediment (silty clay or clay) but rise along the seabed slope.
 
Arctic Science and Technology Information System, ASTIS document number 148130.

Reprints may be requested from R. V. Wahlgren, atmoswater@gmail.com

A free download of the entire Paper 79-1B (PDF) which includes my paper (pp. 51–62) is available from GEOSCAN, Natural Resources Canada.

Ice-scour track images are available here: Natural Resources Canada Marine Geological Research in the Canadian Beaufort Sea

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