The role of black shales in the formation of phosphate and manganese ores

The role of black shales in the formation of phosphate and manganese ores

The ore-forming role of black shales is discussed. Correlation of their distribution with high phosphorus and manganese concentrations is shown. Associations of black shales, phosphorites, and manganese ores are described. A mechanism is proposed for explaining their co-occurrence in natural environ...

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Veröffentlicht in:Lithology and Mineral Resources 2011-07, Vol.46 (4), p.321-352
Hauptverfasser: Kholodov, V. N., Nedumov, R. I.
Format: Artikel
Sprache:eng
Schlagworte:
Earth and Environmental Science
Earth Sciences
Geochemistry
Manganese
Manganese compounds
Mineral Resources
Mineralogy
Natural environment
Petrology
Phosphates
Sedimentology
Shales
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Zusammenfassung:The ore-forming role of black shales is discussed. Correlation of their distribution with high phosphorus and manganese concentrations is shown. Associations of black shales, phosphorites, and manganese ores are described. A mechanism is proposed for explaining their co-occurrence in natural environments. It is emphasized that back shales serve as not only ore-forming sequences, but also ore-generating formations for phosphorus and manganese deposits, as well as ore-concentrating rocks for chalcophile elements.
ISSN:0024-4902
1608-3229
1573-8892
DOI:10.1134/S0024490211040043