مطالعات کانی شناسی - ژئوشیمیایی بر روی منطقه کانی سازی شده طلا در کوه زر تربت حیدریه

Gold - Polymetal mineralization of Kohe-zar area is located alout 35 kilometers southwest of Torbat - Heydarieh in Khorasan province. Mineralization was oeeured in quartz - speeularite ± pyrite ± chacopyrite veins and vein lets. The main ore minerals are specularite, chalcopyrite, pyrite, avinite (Bi - bearing tetraedrite), acanthite, native bismuth (occurred intergrowth with barite), native gold, electrum, coveline - digenite and weathered minerals such as geothite, hydrogeothite, eu-fe oxides, malachite. Ore minetalization of Kohe - zar is related to low - sulfide, quartz - hematite type of hydrothemal ore deposists. On the basis of therrnobarogeochemical investigation on quartz, medium temperature fluid with low potential mineralization is responsible for mineralization in this area.