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Excerpt from The Geognosy of the Appalachians and the Origin of Crystalline Rocks: Address to the American Association for the Advancement of Science, on Retiring From the Office of President of the Association, Indianapolis, August 16, 1871 Laurentian gneiss. The coarse-grained, porphyritic, reddish vari eties common to the latter are wanting in the Green Mountains, where

Title : The Geognosy of the Appalachians and the Origin of Crystalline Rocks: Address to the American Association for the Advancement of Science, on Retiring from the Office of President of the Association, Indianapolis, August 16, 1871 (Classic Reprint)
Author : Thomas Sterry Hunt
Language : en
Rating :
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Type : PDF, ePub, Kindle
Uploaded : Apr 05, 2021

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