Abstract：
Based on the drilling data of the mining area in Gejiu,Yunnan province,the 3D prediction of a conceal orebody was processed whith the proper 3D geological modeling software.One new method,"the cubic predicting model" method,was brought forward by combining the 3D visualization technology and the traditional quantitative predicting method.Five statistical variates,namely,the strata,faults,granites,anomalies of Sn and Pb,were selected to be geological marks,and we established the prospective zone and tested project zones of Sn and Pb,calculated the ore-containing probabilities and the quantities of the metal resource.The key controlling factors in the studied area should be strata and faults, so we thought that the 5th and 6th Submembers,Kafang Member of Middle Triassic Gejiu Formation,and the region within 150 m of the both sides of fault should be potential metallurgic regions.This application showed the validity of "the cubic predicting model" method in orebody's prediction for determing quantity, position and probability.Fourthermore,this study made a great breakthrough of changing from traditional 2D to the 3D prospecting.
2009, Vol. 44 
