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问题的提出大宝山是一个大型的多金属矿田,成矿地质条件复杂,具有多种成因的矿床类型,早在国内享有盛名.六十年代,许多人将大宝山矿床归属于碳酸盐岩中沿层交代的高中温热液交代矿床,花岗闪长斑岩是形成母岩.后来,有人提出次英安斑岩是成矿母岩.近年来又有“层控矿床”、“沉积成矿热液叠加的复生矿床”“海底火山沉积-断裂凹陷型黄铁矿型铜矿”、“海底火山喷发沉积-热液叠加改造复生矿床”“火山成因块状硫化物矿床”、“地台型火山成矿作用的火山喷发异地沉积改造矿床”种种说法.随着矿床的开发,地质勘探工作的深入,许多新的地质事实表明,大宝山是一个复成矿床.本文试从多源成矿和不同的成矿作用来阐述矿床类型,进而对成矿作用过程进行探讨.
Dabao Mountain is a large-scale polymetallic ore field with complicated metallogenic geological conditions and various deposit types, which enjoyed a long history in China.During the 1960s, many people assigned the Da Baoshan deposit to carbonate rocks Later, it was suggested that the sub-Yingan porphyry is a metallogenic parent rock.In recent years, there are also “stratiform control ore deposits”, “sedimentary Mineralized hydrothermal superposition of remnant deposits ”,“ submarine volcanic sedimentary - fractured pyrite type copper deposit ”,“ submarine volcanic eruption sedimentary - hydrothermal superimposed remineralization deposit ”“ volcanogenic massive sulphide deposits ”," With the development of the deposit and the deepening of the geological exploration work, many new geological facts show that Dabaoshan is a complex mineral deposit.This paper tries to analyze from the multi-source into Ore and different mineralization to explain the type of deposit, and then explore the process of mineralization.