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3718597 
Journal Article 
Geochemistry of Manganese Ores from the Southern Folded Margin of the Siberian Platform 
Shkol'nik, SI; Letnikova, EF 
2015 
Yes 
Geochemistry International
ISSN: 0016-7029 
53 
6 
545-553 
WOS:000355217800005 
We present geochemical data on the composition of manganese ores associated with volcano-sedimentary sequences of the Olkhon and Ikat terranes located at the southern folded margin of the Siberian Platform. The study shows that hydrothermal activity was the major source of manganese supply to the sedimentation basin. The geochemical and isotopic data suggest that the manganiferous sediments were deposited at a distance from the source of hydrothermal activity under the conditions of suppressed terrigenous sedimentation. The lenticular shape and small thickness of the ore bodies suggest that they were deposited in small troughs within a larger deep-water basin. 
metamorphic terranes; volcano-sedimentary units; manganese ores; geochemical signature; sources of ore minerals