Grade-tonnage Deposit Models of Selected Ontario Mineral Deposit Types PDF Download
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Author: M. C. Rogers Publisher: ISBN: Category : Mines and mineral resources Languages : en Pages : 128
Book Description
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.
Author: M. C. Rogers Publisher: ISBN: Category : Mines and mineral resources Languages : en Pages : 128
Book Description
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.
Author: Geological Association of Canada Publisher: St. John's, Nfld. : Geological Association of Canada ISBN: Category : Science Languages : en Pages : 170
Author: M. C. Rogers Publisher: ISBN: Category : Mines and mineral resources Languages : en Pages : 56
Book Description
Documents the mineral potential evaluation procedure that the Ontario Geological Survey has developed and implemented for participation in land use planning assessments in areas where potentially conflicting land use activities have been or may be proposed. The procedure is also recommended for use by geological consultants performing mineral potential evaluations for municipalities and land use agencies. The procedure involves a subjective ranking of the mineral potential using objective, defined criteria. The region to be assessed is subdivided on the basis of geologic and metallogenic parameters, and the areas are ranked with respect to the occurrence of specific deposit types. The applicable geological, geophysical and/or geochemical, and economic criteria for each deposit type are each subjectively ranked and the ratings are combined in an overlapping circle scheme. Concludes with discussion of how the evaluation methodology can assist with the consideration of provincial interests in the municipal land use planning process under the 1990 Planning Act.
Author: K. J. Schulz Publisher: Geological Survey ISBN: 9781411339910 Category : Industrial minerals Languages : en Pages : 868
Book Description
As the importance and dependence of specific mineral commodities increase, so does concern about their supply. The United States is currently 100 percent reliant on foreign sources for 20 mineral commodities and imports the majority of its supply of more than 50 mineral commodities. Mineral commodities that have important uses and face potential supply disruption are critical to American economic and national security. However, a mineral commodity's importance and the nature of its supply chain can change with time; a mineral commodity that may not have been considered critical 25 years ago may be critical today, and one considered critical today may not be so in the future. The U.S. Geological Survey has produced this volume to describe a select group of mineral commodities currently critical to our economy and security. For each mineral commodity covered, the authors provide a comprehensive look at (1) the commodity's use; (2) the geology and global distribution of the mineral deposit types that account for the present and possible future supply of the commodity; (3) the current status of production, reserves, and resources in the United States and globally; and (4) environmental considerations related to the commodity's production from different types of mineral deposits. The volume describes U.S. critical mineral resources in a global context, for no country can be self-sufficient for all its mineral commodity needs, and the United States will always rely on global mineral commodity supply chains. This volume provides the scientific understanding of critical mineral resources required for informed decisionmaking by those responsible for ensuring that the United States has a secure and sustainable supply of mineral commodities.
Author: M. C. Rogers
Author: M. C. Rogers
Author: Geological Association of Canada
Author: M. C. Rogers
Author: 
Author: Simon M. Cargill
Author: 
Author: 
Author: Ontario Geological Survey
Author: David H. Root
Author: K. J. Schulz