Geological,mineralogical,petrogeraphy and alternation investigation at Kashmar Chalpou-Kalate Chubak antimony deposite

The mine area is located in 65km north of Kashmar(Khorasan-e-Razavi province-East Iran) and it forms a part of northeast of Central Iran zone. This area consists of Paleogene terrigenous sediments containing of shale, marl, sandstone and conglomerate with interlayers of pyroclastic rocks that age of sediments are belonged to Eocene. The faults with East-West trendin (parallel with Doruneh main fault) influenced the region and the formation of this deposit. The mineralogy of deposit is simple and consists of quartz, calcite, stibnite, pyrite, gold, realgar and orpiment. The main type alternations are arjillic, sericitic, pyritization, silicification and carbonatization. Field observations, petrography and paragenetic sequences indicate that mineralization is happened in epithermal vein system.