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TitleSedimentary phosphate deposits - an interim review
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorChristie, R L
SourceGeological Survey of Canada, Paper 78-20, 1978, 9 pages, Open Access logo Open Access
PublisherEnergy, Mines and Resources Canada
Mediapaper; on-line; digital
File formatpdf
Subjectsindustrial minerals; apatite; depositional history; models; paleogeography; phosphate; phosphorus; phosphorus geochemistry; sedimentary ore deposits; volcanogenic deposits
Released1978 09 01; 2016 03 15
AbstractThe most widely used ore in the world's phosphate industry is sedimentary phosphate rock, or phosphorite, in which the apatite mineral series is prominent. The sedimentary phosphate minerals probably form during diagenetic phosphatization of sediments in certain shallow-marine environments near loci of upwelling deep-sea water. Hypothetical models of various sedimentological-tectonic conditions that apparently occurred during phosphate deposition have been used in delineating promising areas for prospecting. In this paper, several models are drawn from descriptions of known phosphoritic regions, and a genetic scheme of classification is proposed. Canada has a well-developed phosphate industry although no ore is mined in this country. Phosphorite is reported, however, from beds of a wide range of ages and it should be possible, using criteria derived from the models for deposition of marine apatite, to delineate favourable sites for prospecting and testing.

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