CGRG Bibliography of Canadian Geomorphology
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Author : Bolduc, A.M.
Date : 1999.
Title : Nouveau site Mitis à Champlain, vallée du Saint-Laurent, Québec.
Publication : Commission géologique du Canada, Recherche en Cours 1999-E.
Issue :
Page(s) : 169-174.
Abstract
Sea level fluctuations in eastern Canada are relatively well documented east of Quebec City on both shores of the St. Lawrence Estuary. This study contributes to the recognition of one of those fluctuations west of Quebec City. At Champlain, in the Mauricie area, the low terrace located at an altitude of 6 to 9 m a.s.l. can be attributed to the Mitis transgression. Indeed, wood logs (Prunus sp.) found below 2 m of silty sands have been radiocarbon dated at 2190+/-60 BP (GSC-6304). The dynamics of the Champlain River may have played a role in the burial of organic matter, but the age obtained on the logs indicates that these events took place during a high marine stand associated with the Mitis transgression. These data suggest that the low terrace around Lake Saint-Pierre may have been built during that time.
Bibliography of Canadian Geomorphology