论文部分内容阅读
乌奴格吐山矿床是一个大型斑岩铜钼矿床。金属矿物中以贯通性矿物黄铁矿含量最多。钼、铜、铅锌三个主要成矿阶段，黄铁矿的平均温度分别为３３１℃、２２８℃、＜２００℃。黄铁矿中Ｃｏ、Ｎｉ、Ａｓ等微量元素特征为成矿物质来源提供了重要信息。辉钼矿是唯一重要的钼矿物，主要赋存在石英－钾长石化带，以２Ｈ型为主。铜矿物有黄铜矿、锌砷黝铜矿、斑铜矿等，以黄铜矿为主，主要赋存在石英－绢云母－水白云母化带。不同世代黄铜矿微量元素的差异反映了成矿溶液的变化。方铅矿、闪锌矿主要赋存于石英－伊利石－水白云母化带。闪锌矿贫铁（ＸＦｅＳ＝４ｍｏｌ％—８ｍｏｌ％），方铅矿含Ａｇ（０．０１％—０．３５％）。
The Yungu Tuo Mountain deposit is a large porphyry copper-molybdenum deposit. Permeable mineral pyrite content in metal minerals is the most. Molybdenum, copper, lead and zinc three major mineralization stages, the average pyrite temperature is 331 ℃, 228 ℃, <200 ℃. The characteristics of trace elements Co, Ni, As in pyrite provide important information for the source of ore-forming materials. Molybdenite is the only important molybdenum mineral, mainly in quartz-potassium feldspar zone, 2H-based. Copper minerals are chalcopyrite, zinc arsenic tetrahedrite, bornite, etc., mainly chalcopyrite, mainly in the presence of quartz - sericite - water muscovite belt. The differences of trace elements in different generations of chalcopyrite reflect the changes of ore-forming solution. Galena, sphalerite mainly occurs in quartz - illite - water muscovite belt. Sphalerite is poor iron (XFeS = 4mol% -8mol%), galena is Ag (0.01% -0.35%).