بررسی دگرسانی، ویژگی های سیال کانه ساز و تعیین تیپ کانی سازی طلا در شمالشرق بزمان

Studied area is located in northeast of Bazman volcano, in southern most part of Urmieh-Dokhtar volcanic zone. The area is covered by neogene volcanis, wich are highly crushed. Au mineralization has been discovered during metalogenic studies of sistan and Baluchestan province. Among three fault systems, the N۲۵E one has given way to epithermal mineralizing fluids bearing gold in chalcedony-adularia veins. Considering importance of mineralization style in epithermal gold exploration, in this research it has been attempted to determine tupe of gold mineralization based on alteration patterns, fluid inclusion microthermometry and ore-mineralogy investigations. Existing evidences indicate thate gold mineralization in area is low sulphidationtype, formed by neutral pH fluid of low salinity with average ۲۵۰˚C temperature. Study of erosional level reaveal that northern part of north Bazman deposit has been eroded more than southern part. Therefore it can be inferred that occurance of gold bearing silisic veins in lower level of southern part is significant.