نگرشی بر کانسارسازی آنتیموان در منطقه سیرزار(شمال شرق خراسان )

Geological and geochcmical studies in Sinar area, located in the north east of Khonlsan pruvince, indicate the presence of antimony in a vast area. This cleme nt mainly occurs as st ihni te , associated wi th na tive antimony, kerlncsite, getchellite ('!), pyrite, chalw pyrite. arseno pyrite, tctrahcdrite .md ga lena, in carbonate rock.'i, as veins. veinlcts and disseminations. The gangue minerals arc calcilc,doiomitc, barite and qua rtt. Inves tiga tions ind ica te that thrust fllulis and brecciated zones arc the most important channclways for migration or arc tluids, and deposi tion of the a re assemblage and The mineralization has occurred in seve ral physico. chcmic<l1 e pisodes. The strategic importance of antimony, and its association with valu<lble commodities such as gold, si lver, mercury and arsen ic, demand more detail inves tigat io ns in this region.