CGRG Bibliography of Canadian Geomorphology
Search Results
Author : Bednarski, J.
Date : 1999
Title : Preliminary report on mapping surficial geology of Trutch map area, northeastern British Columbia.
Publication : Geological Survey of Canada, Current Research
Issue : 1999-A:
Page(s) : 35-43.
Abstract
Field investigations have been started on mapping the surficial geology of the Trutch map area, northeastern British Columbia, as part of the Central Forelands NATMAP Project. Glacial geomorphology and erratic dispersal shows that this areas was extensively glaciated by Cordilleran ice, originating from the mountains and foothills in the west, and by Laurentide ice from the east. In places, the western advance predates the last Laurentide advanced that reached the mountain front. In other places, Laurentide and and Cordilleran advances may have been synchronous. During deglaciation, the retreating Laurentide Ice Sheet blocked drainage and extensive proglacial lakes formed on the plains and in the mountain valleys. Various types of mass movements are common in the area because of steep slopes and a weak substrate. The surficial mapping program includes mapping these features to provide a database for risk assessment.
Bibliography of Canadian Geomorphology