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The Ford River Granite of the Southern Complex of Upper Michigan

R. M. Dickey
The Journal of Geology
Vol. 46, No. 3, Part I (Apr. - May, 1938), pp. 321-335
Stable URL: http://www.jstor.org/stable/30081304
Page Count: 15
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The Ford River Granite of the Southern Complex of Upper Michigan
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Abstract

A granite-porphyry which comprises most of the Southern Complex of the upper peninsula of Michigan and which has been variously considered Laurentian or post-Huronian is indicated by interpretation of field evidence to be post-Lower Huronian and pre-Middle Huronian in age. It is named the Ford River granite. The possibility is suggested that this granite may be a correlative of the Algoman granites of the north shore of Lake Superior.

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