CGRG Bibliography of Canadian Geomorphology
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Author : Lewis, D.H.; and Smith, D.J.
Date : 2005.
Title : Late Holocene glacier activity at Forrest Kerr Glacier, Andrei Icefield, northern British Columbia Coast Mountains.
Publication : Canadian Geophysical Union Annual Science Meeting, Banff, Alberta. May 8-11, 2005.
Issue :
Page(s) :
Abstract
Glacier ice front positions in the northern Coast Mountains of British Columbia have experienced extensive retreat from their Little Ice Age maxima (LIA: ~1200 - 1890 AD), revealing evidence of glacial advances coeval with late Holocene glacier activity recorded in the southern Coast Mountains. At south Forrest Kerr Glacier, recent drainage of an ice-dammed lake, in combination with stream erosion of ice marginal glaciogenic deposits, has exposed extensive dendroglaciological evidence in the form of glacially-sheared in-situ tree stumps, overridden forests, and detrital stumps and boles buried in ice-dammed lake deposits. Two glacier advances prior to the Medieval Warm Period (~1000-1300 AD) have been dated to ca. 3000 14C and 1500 14C yr BP, providing substantive local evidence for glacial activity equivalent to the ‘Tiedemann’ and ‘Bridge’ advances recorded in the southern Coast Mountains. Dendrochronological evidence also suggests a more recent advance at this site corresponding to the Little Ice Age. These data indicate the occurrence of at least three episodes of glacial activity corresponding to those recorded in the southern Coast Mountains, suggesting large-scale glacier-climate responses throughout the Coast Mountain region.
Bibliography of Canadian Geomorphology