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Beginning of the Nipissing Phase of Lake Huron
The Journal of Geology
Vol. 66, No. 5 (Sep., 1958), pp. 591-594
Published by: The University of Chicago Press
Stable URL: http://www.jstor.org/stable/30084976
Page Count: 4
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The Nipissing beach bar east of Sarnia, Ontario, covers wave-reworked material, including several logs and other remains of plants and mollusks, and, at one place, soil below it. Radiocarbon dates of two logs are: $4,650 \pm 200$ and $4,610 \pm 210$. A theoretical time/uplift curve suggests the beginning of the Nipissing phase of Lake Huron $4,300 \pm 270$ years ago.
The Journal of Geology © 1958 The University of Chicago Press