مطالعه ژئوشیمی و کانی سنگین رگه های کوارتز تورمالین قلع دار در شمال شاهکوه در مرحله اکتشاف عمومی

     Among others accomplished exploration programs before this exploration stage in form of exploration design of mining material in southern khorasan was tin prospecting in ۵۰۰ Km۲ area and for recognition and sampling from granitic parts and Sn - bearing tourmaline quartz veins that was accomplished by exploration part of north east management and mining survey.The chemical analysis results from samples of tourmaline quartz veins in this stage indicated that Sn amount in some of veins is ۸۰۰ to ۴۴۰۰ gr/ton (ppm).

      On the basis of chemical analysis results of Sn element and W,Au,Mo,Ag and Cu elements and also, carfule field taking, was selected region with ۱ Km۲ area in metamorphic complex formed quartzite, schist rocks and marble parts in north of Shah kuh as anomal area and having tin potential and general exploration study.

      The most of measured  tin grade is >۴۰۰ ppm related to samples of withdrawaled from drilling trenchs on tourmaline quartz veins that many them were centralized in east part of exploration region with a view to thickness of veins and tin density. Important point of this researches is that Sn amount in metamorphic part of hanging wall and foot wall is noteworthyly lower tourmaline silicic veins that can been reason for that tin and its mobile elements have sorced intrusive granitic mass of Shah kuh.

       The minerals of veins consist of: cryptocrystalline quartz, pyrite, chalcopyrite, pyrrhotite, ilmenite, rutile and Fe oxide- hydroxide resulted sulfide alteration.