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栾川鱼库钼矿床位于华北克拉通南缘,矿床的形成与燕山期岩浆-矽卡岩热液成矿作用有关,是近年来发现的大型隐伏钼多金属矿床。对鱼库矿区骨干剖面的深部钻孔(>1 000 m)中黄铁矿开展热电性标型特征分析,发现样品中黄铁矿以N型为主,总含量达96%。根据黄铁矿导型及热电性参数变化特征推测出矿体向深部有一定规模的延伸。根据热电性实验数据计算出成矿温度范围在270~332℃之间,结合矿床矿石特征判断该矿床属于浅成中温热液成矿。并利用地质统计学知识,运用Arc GIS对计算出来的成矿温度进行克里格插值分析,探讨矿区深部成矿规律。
The Luanchuan fishpond molybdenum deposit is located in the southern margin of North China Craton. The formation of the deposit is related to the mineralization of the magmatic-skarn hydrothermal mineralization in the Yanshanian period. It is a large-scale hidden molybdenum polymetallic deposit discovered in recent years. The thermoelectric properties of pyrite in deep boreholes (> 1000 m) in the key section of the fishpond mining area are analyzed. It is found that the pyrite in the samples is dominated by N type, with a total content of 96%. According to the variation of pyrite conductivity and thermoelectricity parameters, it is inferred that the ore body extends to a certain extent in depth. According to the thermoelectricity experimental data, the metallogenic temperature is calculated to be between 270 and 332 ℃. According to the characteristics of ore deposits, the ore deposit belongs to the epithermal mineralization. Using the knowledge of geostatistics, Kriging interpolation analysis of the calculated metallogenic temperature by using ArcGIS is carried out, and the deep metallogenic regularity in the ore area is discussed.