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朱砂红斑岩铜矿位于德兴斑岩铜矿矿集区的西北方向,紧邻铜厂铜矿。本文在前人有关德兴铜矿研究基础上,以铜矿流体包裹体为研究内容,通过野外详细的岩芯采样,室内石英斑晶、石英脉和方解石脉中包裹体测试及数据整理分析后初步发现:朱砂红斑岩铜矿流体包裹体大致可以分成五大类型(富液型包裹体、富气型包裹体、含CO2气液两相型包裹体、含子矿物多相型和固液两相型);相比铜厂整体成矿温度略低,盐度略高;由成矿流体压力47.27～184.47MPa,推导出成矿深度达2～4km,以及激光拉曼测试结果——流体中含有CO2、H2S和CH4等挥成份气体,它们可能与Au等元素的运移成矿有关。因此,从包裹体性质推测朱砂红铜矿不只是斑岩铜矿,可能是浅成热液斑岩型铜金矿床。此外,朱砂红矿区成矿流体来源至少有两种:高温岩浆流体和大气降水。伴随流体演化期次大致可以划分出3个成矿阶段:硅酸盐硫化物阶段、石英-硫化物阶段(即主成矿阶段,温度:200～340℃,盐度:2.0%～15%NaCl)、碳酸盐-硫酸盐硫化物阶段。同时,均一温度、盐度及压力等暗示在流体演化和成矿过程中岩浆流体发生过沸腾或不混溶作用。
The vermilion porphyry copper deposit is located in the northwestern direction of the dexing porphyry copper deposit and is close to the copper plant. Based on the previous researches on Dexing copper deposit, taking the copper fluid inclusions as the research content, through the detailed core samples in the field, the test and data analysis of inclusions in indoor quartz porphyrites, quartz veins and calcite veins Preliminary findings show that the fluid inclusions in the vermilion porphyry copper deposits can be divided into five major types (fluid-rich inclusions, gas-rich inclusions, gas-liquid two-phase inclusions containing CO2, heterogeneous mineral- Compared to the copper plant slightly lower overall temperature, salinity slightly higher; from the fluid pressure of 47.27 ~ 184.47MPa, derived from the depth of 2 ~ 4km, and laser Raman test results - the fluid containing CO2, H2S and CH4 and other volatile component gases, which may be related to the migration of Au and other elements related to metallogenesis. Therefore, it is inferred from the nature of inclusions that the cinnabar copper deposit is not only a porphyry copper deposit, but may be a porphyry copper-gold deposit of epithermal type. In addition, there are at least two sources of ore-forming fluids in the Zhuzhong red ore district: high-temperature magmatic fluid and atmospheric precipitation. Three mineralization stages can be divided along with fluid evolution period: silicate sulfide phase, quartz-sulfide phase (ie, main mineralization stage, temperature: 200 ~ 340 ℃, salinity: 2.0% ~ 15% NaCl ), Carbonate-sulphate sulphide stage. At the same time, the homogenization temperature, salinity and pressure imply boiling or immiscibility of magma fluid during fluid evolution and mineralization.