Glacier Retreat

Contained within the 4th Edition (1974) of the Atlas of Canada is a map that shows the successive stages in the retreat of the last ice sheet in North America in respect to coverage of the Canadian landmass. Included with the map are the speculative ice-marginal positions with approximate time in years before present and present day ice cover which is denoted as well as areas which were unglaciated during the last glaciation period.

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Info additionnelle

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Dernière modification avril 17, 2026, 20:30 (TU)
Créé le avril 17, 2026, 20:30 (TU)
contact_email geoinfo@nrcan.gc.ca
contact_person {}
criticality_level []
data_dictionary ["climatology_meterology_atmosphere"]
geographic_scope []
open_canada_collection geogratis
open_canada_date_published 1973-01-07 00:00:00
open_canada_keywords {"fr": ["calotte glaciaire", "glacier"], "en": ["glaciers", "ice caps"]}
open_canada_subject ["nature_and_environment", "science_and_technology"]
sensitivity_level unrestricted
title_fr Recul des glaciers
update_frequency as_needed