凤县银母寺铅锌矿1305与1365中段之间矿体定位预测

POSITIONING PREDICTION OF ORE BODIES BETWEEN 1305 AND 1365 LEVELS IN YINMUSI LEAD-ZINC MINE OF FENGXIAN

运用地质预测和无线电波坑透层析成像探测相结合的综合定位预测方法 ,对凤县银母寺铅锌矿 130 5和 136 5中段之间进行综合定位预测。坑透资料层析成像表明 ,岩石与矿体对电磁波的吸收率有较大的差异 ,识别出 6处低吸收率异常。物探异常与已知矿体有较高的一致性 ,圈定预测矿体的吸收率阈值为 14左右。结合地质预测信息综合圈定出 6个预测矿体以及每个矿体的厚矿体或富矿体部位和薄矿体或贫矿体部位。对 6号和 4号矿体的开采验证了综合定位预测结果。综合定位预测对矿体边界和发育程度的预测较为精确 ,是进行坑道之间铅锌矿体大比例尺。

The positioning prediction of ore bodies between 1305 and 1365 levels in Yinmusi Lead Zinc Mine(Fengxian,Shaanxi,China)is made by using synthetic method of the geological predicting and electromagnetic wave penetrating prospecting.The results of electromagnetic wave penetrating prospecting indicate that the absorbency of the lead zinc ore body for electromagnetic wave is about 14,and is different from the gangue.And six ore bodies and their conformations are predicted by electromagnetic wave penetrating prospecting with identifying of geology.The prediction is verified by mining of number 6 and 4 ore bodies.The synthetic method of geology prediction and electromagnetic wave penetration is an effective method for large scale,high precision positioning prediction of lead zinc ore bodies between two level drives.