The role of black shales in the formation of phosphate and manganese ores |
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| Authors: | V N Kholodov R I Nedumov |
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| Institution: | 1.Geological Institute,Russian Academy of Sciences,Moscow,Russia |
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| Abstract: | 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. |
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