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PROSPECTS OF THE TOMTOR ORE FIELD FOR MANGANESE DEPOSITS

A. V. Tolstov 1,2, A. V. Lapin 3

1 Sobolev Institute of Geology and Mineralogy SB RAS, Novosibirsk, Russia; 2 Institute of Geology of Diamond and Precious Metals SB RAS, Yakutsk, Russia; 3 Institute of Geochemistry and Crystal Chemistry of Rare Elements, Moscow, Russia

The prospects of the Tomtor ore field for manganese mineralization were assessed. It was found that of all the bedrock of the ultramafic alkaline carbonatite complex of the Tomtor massif, ankerite carbonatites and ankerite-shamosite rocks of the ore group are the most enriched in manganese. The manganese maximum absolute concentrations are confined to the ferruginous weathering crusts according to ankerite varieties of the carbonatite complex. The detection of high manganese contents at significant intervals in the hypergene complex allows researchers to identify and predict the presence of sites with industrial concentrations, that creates real prospects for revealing deposits of iron-manganese ores with unique reserves here.

Ключевые слова: manganese, iron, Tomtorskoye ore field, carbonatites, weathering crusts.

DOI 10.20403/2078-0575-2024-4a-79-86

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