Sulfur isotopic composition of sulfides from the destruction products of paleosmoker from the Yubileynoe VHMS deposit (Southern Urals)
A.S. Tseluyko, V.V. Maslennikov, N.R. Ayupova, S.A. Sadykov
UDК 553.41 (470.5)
Variations in sulfur composition of sulfdes from fragments of the paleosmoker chimneys, sulfde turbidites, and products of their seafoor alteration are determined. The fragments of paleosmoker chimneys are characterized by d34S values from +0.3 to +2.9 ‰ CDT, which correspond to sulfur isotopic composition of basalts from the young massive sulfde hydrothermal systems. The products of seafoor alteration of clastic ores are slightly enriched in heavy sulfur isotopes: d34S values from +1.0 to +4.3 ‰ CDT. The increase in role of heavy sulfur isotope probably points to involvement of seawater sulfate during diagenesis of clastic sulfdes.
Figures 2. Tables 1. References 31.
Key words: sulfur isotopic composition, sulfdes, hydrothermal paleosmoker chimneys, sulfde turbidites, massive sulfde deposits, Urals.
МINERALOGY № 4 2015