Reprint of a Report on the Origin, Geological Relations and Composition of the Nickel and Copper Deposits of the Sudbury Mining District, Ontario, Canada (Classic Reprint) - Tapa blanda

Sinopsis

Excerpt from Reprint of a Report on the Origin, Geological Relations and Composition of the Nickel and Copper Deposits of the Sudbury Mining District, Ontario, Canada

In undertaking this new work it was felt that by confining oper ations as closely as possible to the area' characterized by the presence of the sulphide bearing norite and other kindred eruptives a more accurate knowledge would be obtained of the mineralogical com position, structure and age relations of the various rock masses, while at the same time the boundaries between the several formations could be drawn with a much greater degree of precision.

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