ISOTOPIC SEPARATION OF SULFUR IN HIGH-TEMPERATURE CONDENSATION ZONES

Abstract

Considered is the process of isotopic separation capable to explain the anomalous isotopic composition of sulfur of Norilsk deposits without employing the concepts of crust sulfur contamination. The estimation of isotopic separation effect at 'gas-liquid' transition shows that the shift of isotope ratios in sulfur condensate can vary from close to zero values to δ34S=20.262. It makes impossible using sulfur isotope composition as its source evaluation criterion and easily explains the observed anomalies for Norilsk and other deposits.