秦岭金矿60号脉西段是杨寨峪矿区60号脉的西延部分,经过对该矿段几年来的基建勘探和生产勘探工作,发现矿体金品位有较大幅度下降。从探矿工程取样间距、特高品位处理、沿脉中段选择及群采影响等方面对品位下降的原因进行了探讨。 The western section of Qinling Gold Mine No. 60 is the westward extension of the vein of No. 60 in Yangzhaiyu Mine. After several years of infrastructure exploration and production exploration work on this segment, it is found that the grade of ore body has been greatly reduced. The reasons for the drop in grade were discussed from the aspects of sampling interval of exploration engineering, extra high grade treatment, midsection selection and group mining influence.