Writers : Zirjanizadeh,S; Karimpour, M.H; Mazaheri, S.A
Refference : The 15th Symposium of Crysallography and Mineralogy of Iran
Publishing Year : 1387

Abstract :

The massive sulfide of Taknar deposits are part of meta volcanic-sedimentary complex (Taknar Formation, Ordovician) and consist of elastic sediments, carbonate, felsic and mafic volcanic and sub-volcanic rocks. fluid inclusion study show that, Tak III, has highest temperature and Th is more than 550°CC. in Tak II, Th is variable between 310 to 330°C and TakI has Th between 500 to more than 570°C. δ34SH2S values sulfide minerals suggest that sulfur in the hydrothermal fluids originated from reduction of sea water sulfate caused by reaction with Fe2+-bearing components in the volcanic rocks at elevated temperatures. precipitation of sulfides have occurred on or near the sea floor caused by decreasing temperatures accompanid by increase in oxidation state and pH of the fluid. Based of S- isotope, sulfur originated for sea water.

Subject List : Microthermometery, Isotopic study