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Science 20 August 1965:
Vol. 149. no. 3686, pp. 860 - 862
DOI: 10.1126/science.149.3686.860
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Articles

Radiocarbon Date from the Lake St. John Area, Quebec

Pierre Lasalle 1

1 Quebec Department of Natural Resources, 1620 Boulevard de l'Entente, Quebec City, Canada

A radiocarbon age of 8680 ± 140 years found for fossil marine shells in the Lake St. John area, Quebec, shows that marine submergence there apparently preceded the "Tyrrell Sea" in southeastern Hudson Bay, but followed the Champlain Sea episode in the St. Lawrence Lowlands.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)