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Science 19 June 1964:
Vol. 144. no. 3625, pp. 1452 - 1453
DOI: 10.1126/science.144.3625.1452
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Articles

Garnet Ratios and Provenance in The Glacial Drift of Western New York

G. Gordon Connally 1

1 State University College, New Paltz, New York

The ratio of purple to red garnet identifies drift provenance. Low ratios indicate glacier flow from the central Adirondacks. Ratios of 1.4 or greater indicate flow from Canada, by way of the St. Lawrence lowland. The heavy mineral assemblages were evidently undiluted by local sources in western New York.

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