The Kovdor apatite-francolite deposit as a prospective source of phosphate ore |
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Authors: | A. V. Lapin A. P. Lyagushkin |
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Affiliation: | 1. Institute of Mineralogy, Geochemistry and Crystal Chemistry of Rare Elements, ul. Veresaeva 15, Moscow, 121357, Russia 2. State Research Institute of Natural Chemical Raw Materials, Oktyabr’skii pr. 259, Bldg. A, Lyubertsy, 140000, Russia
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Abstract: | The mineral and chemical composition of phosphate ore, its texture and structure, and the distribution of trace elements are considered based on the results of geological exploration of the Kovdor apatitefrancolite deposit carried out in 2010–2012. The compositions of major, minor, and accessory minerals are reported. The ore varieties are typified depending on their composition, quality, texture, structure, and concentrating ability. The apatite-francolite ore occupies a certain position in the lateritic profile of carbonatite weathering and is of residual-infiltration origin as a zone of secondary phosphate enrichment. The outlook of the Kovdor deposit for this type of ore as a whole is considered in the context of phosphorus ore potential enhancement. |
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