频谱激电法在安徽沙溪斑岩铜矿中的应用

The application of spectral induced plarization in ShaXi porphyry copper in Anhui Province

为探查安徽沙溪斑岩型铜矿区深部矿体及隐伏矿体,同时为了试验频谱激电法在此类矿产探测中的应用效果,在安徽沙溪斑岩铜矿区布置了一条2km的频谱激电法(SIP)测线,经过一系列的数据处理及反演,得到7个不同电性参数断面图,对比分析并结合钻孔地质剖面,视电阻率和相位断面图较好的反映了矿体的形态,极化率和金属因子断面图较好的反映了矿体,电性异常与实际矿体的位置及埋深有较好的一致性.试验结果表明,频谱激电法在斑岩铜矿探测中可以取得较好的效果,该方法在高电阻率、高极化率的金属矿的探测中同样可以发挥重要的作用.

In order to explore deep orebody and concealed orebody in ShaXi Porphyry Copper in Anhui Province. Meanwhile, to test the application effect of Spectral induced polarization（SIP） in Porphyry Copper. A survey line of 2km is laid out in mining area. By data processing and inversion, 7 different electrical parameters section is obtained. Comparative analyzing and combining hole profile, The apparent resistivity and phase reflects the form of ore body. the chargeability amd the metal factor reflects the location of the orebody, there are good consistency between electrical resistivity anomaly and orebody position and buried depth. The experiment proved that spectral induced polarization method may achieve good results in the detection of porphyry copper. The method may play an important role in prospecting metal mine of high resistivity and high chargeability.