FROM FLUID INCLUSION STUDY TO GENESIS OF THE ANGURAN ZN-PB DEPOSIT, NW IRAN

摘要

The Anguran Zn-Pb deposit is located within the Urumiah-Dokhtar zone, 120 Km west of Zanjan City (47° 20' E, 36° 40' N). It is one of the largest and highest-grade non-sulflde zinc deposits in the word. The data obtained from geothermometric studies of Sphalerite and flourite asociated with Zinc-Lead mineralisation at the Anguran mine are compatible with a structurally controlled, Sedimentary-hydrothermal origin. Hemogenization and last ice melting temperature of primary fluid inclusion indicate that mineralization taken place over a temperature range 155-165°C and salinities of inclusion fluids range 18.63 to 22.38 wt.% TDS. Finally According to field geology, mineralogy, Geochemistry and fluid inclusion study Anguran deposit is related to the subsurface activity and the same of Irish -Type Zn-Pb deposits.