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Science 9 July 1965:
Vol. 149. no. 3680, pp. 176 - 177
DOI: 10.1126/science.149.3680.176
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Articles

Precambrian Glaciated Surface Beneath the Gowganda Formation, Lake Timagami, Ontario

Paul E. Schenk 1

1 Department of Geology, Dalhousie University, Halifax, Nova Scotia, Canada

Glacial deposition of the Gowganda formation is established by the discovery of an extensive, well-marked, glaciated, basal contact surface. This surface is exposed near the southeastern end of Lake Timagami, northern Ontario. The Precambrian ice sheet advanced three times from the northeast over the area.

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