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R. N. Annells 1974. Keweenawan volcanic rocks of Michipicoten Island, Lake Superior, Ontario. An eruptive centre of proterozoic age. Geological Survey of Canada Bulletin 218. 141 pp., 23 figs, 22 pls, 11 tables, 1 map (in pocket). Ottawa. Price $5.00.
Published online by Cambridge University Press: 01 May 2009
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