(Article of periodic en Anglais - 2005)

Document title

C 14 chronology for ice retreat and inception of Champlain Sea in the St. Lawrence Lowlands, Canada

Authors(s) and Affiliation(s)



AMS radiocarbon cross-dating of plant debris and marine shells trapped in a lake basin on Mount St. Hilaire, Québec, provides a direct assessment of a reservoir effect totaling ca. 1800 C 14 years during the early stage of Champlain Sea. Pollen-based extrapolation of bottommost ages on terrestrial plant macrofossils in sediments of this lake, and of another lakenearby support an estimate 11,100 C 14 yr B.P. for marine invasion in the Central St. Lawrence River Lowlands. Results indicate a 400-1000 years younger regional chronology of ice retreat, now congruent with the one inferred from the New England varve chronology


Article of periodic

published at : Quaternary research / ISSN 0033-5894 / CODEN QRESAV

Editor : Elsevier, San Diego, CA - ETATS-UNIS (1970)

Millesime : 2005, vol. 63, no3 [pp. 353-358]

Bibliographic references : 28 ref.

Collation : Illustration ;



INIST-CNRS, Cote INIST : 15739

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2006.
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