Вариации фугитивности серы в рудообразующем растворе: фактор магнитной зональности золотосульфидных месторождений

Zonality of magnetic field of a gold-ore deposit Blagodatnoe in Yenisei range, occurred in consistent decrease of amplitudes of its anomalies from 500 to 80 nT, is conditioned by distribution of monocline pyrrhotite one of the main ore materials. Stoichiometric ratio S/Fe radiated in associating pyrite. It is shown that gold accumulation essentially in slightly magnetic formations is caused by sulfur fugacity increase in a mineralforming system. The increase of its activity controls the growth of ratio S/Fe in pyrite and its dominance over pyrrhotite in ore paragenesis.