Comparative research of the calculation of mineral resource reserve: a case study of Duimenshan Mining Section of Bainiuchang Polymetallic Mining Area, Mengzi, Yunnan

The ore bodies in Duimenshan Mining Section of Bainiuchang polymetallic Mining Area, Mengzi, Yunnan are layered and lenticular, with an average dip of 16° and a slow occurrence.Due to the characteristics of simple ore body shape, relatively stable occurrence, and uniform distribution of useful components, the horizontal projection geological block method and the geostatistical method based on 3DMine software are used to estimate the resource reserves of the ore section.This paper introduces the process steps of the two resource reserve estimation methods in detail and compares and analyzes the calculation methods, horizontal projected area, grade, ore quantity, metal quantity, and actual mining quantity.The results show that the relative errors of the two methods in the comparison of resource reserve estimation results are less than 7%, and the calculation results are relatively reliable.However, when compared with the actual mining volume, the estimated results of the geostatistical method are closer to the actual mining volume and are better than the horizontal projection geological block method.