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UDC 550.42:(553.411:553.9)(571.56-12)
GOLD GEOCHEMISTRY IN CARBON-BEARING ORE-FORMING SYSTEMS OF SOUTH-EASTERN YAKUTIA
The chemical composition and impurities of minerals, ores, host rocks of gold-ore deposits and occurrences in carbonaceous ore-forming systems of South-Eastern Yakutia is investigated using calculations of chemical elements and gold ratios to regional rock and mineral Clarkes. It is found that gold is included in element associations in strict correspondence with the space geochemical classification of Yu. G. Shcherbakov, regardless of the geological bodies’ organization level (mineral, ore, host medium, magmatic formations). It means that the chemical elements fractionation process in the history of the Earth’s crust and geological bodies formation therein leads to the creation of stable (by mobility degree) geochemical associations, dictating their properties and conditions of gold occurrence, depending on the ore formation sources.
Key words: geochemistry, gold, associations, evolution, sources, black shales, Yu. G. Shcherbakov’s space geochemical associations.
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