CGRG Bibliography of Canadian Geomorphology
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Author : Groulx, B.J.; and Mustard, P.S.
Date : 2004.
Title : Understanding the geological development of the lower mainland; the first step to informed land-use decisions.
Publication : Geological Survey of Canada, Bulletin
Issue : 567:
Page(s) : 1-21.
Abstract
The landscape of the Lower Mainland has been shaped by tectonic, glacial, and fluvial processes. The tectonic process of oceanic crust subducting beneath continental crust poses a threat of damaging earthquake and associated hazards such as soil liquefaction and slope failures. Past glaciers havesculpted the landscape into steep-walled valleys and deposited thick layers of sediment. These steep slopes are potential sites of mass movements of soil and rock that threaten transportation corridors in the eastern Fraser River valley and along Howe Sound. Thick sediments deposited by glaciers contain valuable groundwater aquifers and accommodate development with limited hazards. River deposits have created more than 625 km (super 2) of new land at the mouth of the Fraser River in just the last 10 000 years. The low elevation and physical properties of these young, river-deposited sediments make them prone to flooding, liquefaction during an earthquake, and submarine slides on the delta slope
Bibliography of Canadian Geomorphology