› › Classification Distribution And Grade Tonnage Summaries Of Canadian Lead Zinc Deposits

Classification, Distribution, and Grade-tonnage Summaries of Canadian Lead-zinc Deposits

Author : D. F. Sangster

Publisher : Ottawa, Canada : Geological Survey of Canada : Canadian Government Pub. Centre, Supply and Services Canada

Page : 76 pages

File Size : 48,66 MB

Release : 1986

Category : Science

ISBN :

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Book Description

A summary overview of certain quantifiable characteristics of Canadianlead-zinc deposits and occurrences is presented by means of maps, graphs andexplanatory text. A total of 378 lead-zinc deposits, defined as mineralconcentrations for which grade and tonnage data are available for theseelements, are assigned to one of six deposit-type categories. Deposits areplotted on a 1:5 million scale geological map with symbols depicting deposit-type, total (Pb+Zn) content, and Zn/(Zn+Pb) ratio. The 4900 lead-zinc occurrences (no grade-tonnage data available) are displayed as adensity contour map. Appendices list (i) deposits by type withcross-referencing by name and deposit-number including latitude, longitudeand National Topographic System location data for each deposit, (ii) deposits alphabetically by deposit-type; and (iii) selected bibliographicreferences for each deposit for a total of 748 citations.









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Publisher :

Page : 100 pages

File Size : 40,35 MB

Release :

Category : Geological surveys

ISBN :

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Ore Deposits, Tectonics, and Metallogeny in the Canadian Cordillera

Author : W. J. McMillan

Publisher : Province of British Columbia, Mineral Resources Division

Page : 294 pages

File Size : 29,12 MB

Release : 1991

Category : Geology, Structural

ISBN :

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Book Description

This report provides a tectonic and mineral deposit overview, then discusses deposits in North American rocks, followed by deposits formed in accreted and suspect' terrains; deposits formed at or near the sea floor or from hot springs; and those formed in successively deeper zones as magmatic deposits, vein to replacement deposits, skarns, and porphyries. Deposits within and directly linked to intrusive rocks (magmatic, porphyries, skarns), replacement deposits, possible manto deposits, deep to shallow veins and related deposits formed at the surface, volcanogenic massive sulphides and sedex deposits are then discussed. Sedimentary-hosted deposits of gypsum, barite, phosphate and other industrial minerals are not covered, nor are coal, uranium, pegmatite-hosted deposits, molybdenum prophyries or some of the less common deposit types such as carbonatites, tin greisens, and placers.