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2015 Murton et al Hadwen glaciation GEOQuebec.pdf (981.98 kB)

Late Wisconsin glaciation of Hadwen and Summer islands, Tuktoyaktuk Coastlands, NWT, Canada

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posted on 2023-06-09, 02:04 authored by Julian MurtonJulian Murton, Mark D Bateman, Richard I Waller, Colin A Whiteman
The exact timing of the last major advance of the Laurentide Ice Sheet onto the Beaufort Sea coastlands of western Arctic Canada is unclear but significant to our understanding of landscape change and palaeo-ice stream chronology. Optical stimulated luminescence dating of preglacial and postglacial aeolian sand from Hadwen and Summer islands, in the Tuktoyaktuk Coastlands, indicates that glaciation took place between about 17.5 and 15 ka, and most likely between 16.6 and 15.9 ka, coinciding with Heinrich event 1. At this time the Mackenzie Trough palaeo-ice stream advanced into a cold-climate sandy desert, interrupting aeolian activity.

History

Publication status

  • Published

Presentation Type

  • paper

Event name

GEOQuébec2015: 7th Canadian Permafrost Conference

Event location

Quebec City, Canada

Event type

conference

Event date

20–23 September, 2015

Department affiliated with

  • Geography Publications

Notes

Paper 417

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2016-07-07

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