RESORPTION AS AN AGENT IN FREEING HEMATITE FROM THE GRENVILLE GRANITE MAGMA

The area in Quebec immediately north of the Ottawa river is underlain by a large area of granite gneiss intruded in lit-par-lit fashion into Grenville sediments and low silica Intrusives of the Buckingham Series. This complex of metamorphic rocks is intruded by a much later magma found, chiefly, as a very large stock about 20 miles in diameter and extending from Brownsburg to Grenville, and as dykes and small outliers at various places adjacent to its outer margin.
Keywords: aplite, feldspar, hematite, hornblende, magma, Dykes, Feldspars, Granites, Hematite, Magma, mineral, minerals, Rock, Rocks
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