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A Schist Granite Transition Zone in Ontario
Freleigh Fitz Osborne
The Journal of Geology
Vol. 38, No. 1 (Jan. - Feb., 1930), pp. 75-80
Published by: The University of Chicago Press
Stable URL: http://www.jstor.org/stable/30058910
Page Count: 6
You can always find the topics here!Topics: Schist, Transition zones, Granite, Rocks, Minerals, Feldspars, Gneiss, Plagioclase, Biotite, Materials
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A belt of old schists is separated from the granite that intrudes it by a transition zone, which consists of foliated rocks formed by the metasomatism of the schist. Some porphyritic rocks have been developed. There is no evidence that the rocks of the transition zone were fused or that they were in the state of a "crystal mush."
The Journal of Geology © 1930 The University of Chicago Press