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宁芜盆地产有多处硫铁矿床 ,一些已达到大型矿床规模。火山穹窿、爆发角砾岩筒等火山构造 ,NE向、NW向断裂构造 ,辉石闪长玢岩体 ,“洼中洼”环境等对成矿具有控制作用。碳酸盐岩、安山岩、角砾岩等围岩岩性 ,硅质岩、硬石膏岩等喷气化学沉积岩 ,褐铁矿化黄铁矿化绢云母化高岭土化蚀变组合 ;磁感应强度大于 2 0 0 0nT ,剩余重力异常值在 0 .6× 10 -8～ 1.2×10 -8m/S2 区间 ,激电极化率 ηs 一般大于 15 % ,并伴有低电阻率异常 ;具有S异常 ,并伴有P、Mo元素组合异常等是宁芜盆地硫铁矿的找矿标志。盆地北段皇姑山地区、莺子山地区、濮塘地区、孚而岗地区为今后找矿的重点地段。
There are many pyrite deposits in Ningwu basin, some of which have reached the scale of large deposits. Volcanic domes and outbreak breccia tubes and other volcanic structures, NE-trending, NW-trending faults, pyroxene diorite porphyry and “depression in depression” environment have a controlling role in metallogenesis. Such as carbonate rocks, andesite and breccia, jet chemical sedimentary rocks such as silicalite and anhydrite gypsum, and limonitic and sericitization kaolinized alteration combinations of iron and iron mineralization. The magnetic induction intensity is greater than 20 0 0nT, and the residual gravity anomalies range from 0.6 × 10 -8 to 1.2 × 10 -8 m / S2. The polarizability ηs is usually more than 15%, accompanied by low resistivity anomalies. P, Mo anomalies such as the combination of iron ore in Ningwu basin looking for signs. Huang Gushan area north of the basin, Yingzishan area, Pu Tong area, Fu and the area for the future prospecting for the key areas.