SOME PRE-CAMBRIAN ROCKS IN NORTHERN QUEBEC

Among the many interesting problems of the pre-Cambrian of the Canadian Shield is that of the origin of certain types of gneisses which are intimately associated with the granites on the one hand and with the metamorphic rocks of known sedimentary origin on the other.
Keywords: Biotite, Biotite ., Biotite-pyroxene amphibolite, Gneiss Intrusive contact Saguenay, Quartzite ., Unconformity Roberval Granite, Granite, Granites, mineral, minerals, Quartzites, Rock, Rocks, Stackers
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