Grade-tonnage Deposit Models of Selected Ontario Mineral Deposit Types

Résumé du livre

A grade-tonnage deposit model represents the distribution and the statistical relationships of the pre-production tonnages and the average grades of the commodities of well-explored deposits of a particular mineral deposit type. The purpose of constructing such a model is to further define some of the more common mineral deposit types that occur in Ontario. This report documents 16 such grade-tonnage deposit models, representing Ontario deposit types for which there are no available or adequate models from the United States Geological Survey. The deposit types include: lode gold, Archean volcanic-associated massive sulphide, volcanic-hosted copper, paleoplacer uranium, stratiform chromite, Precambrian porphyry, lithium and uranium pegmatites, talc, magnesite, Cobalt type silver-sulpharsenide vein, Canadian komatiite-hosted nickel-copper, and mafic intrusion-hosted titanium-iron-vanadium-phosphorus.