برآورد مقدماتی ذخیره کانسار طلای چشمه زرد ارغش

Abstract:

The main part of exploration operations in Arghash area has been carried out in Cheshmeh-zard gold deposit in south west of Neishabour. In the course of prefeasibility studies, preliminary reserve estimation has been performed. Following the ۱:۵۰۰ scale geological mapping, some trenches and exploration boreholes were drilled. In order to determine the shape and morphology of gold-bearing veins, cross sections were prepared and then the rule of equal influence zone was applied for reserve estimation. In this approach, dividing the deposit in to different categories (according to assay and extension of oxide and sulfide zones), area of each section, as well as its average assay was calculated. In order to evaluate the distribution of gold, statistical indicatories were calculated and analyzed. Finally the variation of tonnage and metal content of veins were plotted against different cut off grade. The resulting data will be used in ongoing studies: preliminary mine design, cost estimation and economic evaluation of the project.