辽宁小塔子沟金矿流体包裹体研究

Study of fluid inclusions in the Xiaotazigou gold deposit,Liaoning

小塔子沟金矿成矿流体可能主要来源于岩浆水,主成矿阶段的成矿温度为280℃-400℃之间,成矿压力为160-200M Pa,矿化深度为2.8-4.72km,属中深成中温岩浆热液矿床。成矿流体的不混溶作用为形成较大工业意义的矿体起到了非常重要的作用。流体包裹体的研究认为,2号脉有一定的找矿前景;在标高-211m以下的1号脉深部,出现较大规模工业矿体的可能性不大;1号脉南侧是发现有规模的工业矿体的最有利地段。

The ore-forming fluid of the Xiaotazigou gold deposit probably come from magmatic water and the ore-forming temperature of the major mineralizing stage is between 280℃- 400℃ ,ore-forming pressure of 160-200MPa and ore-forming depth of 2. 8-4.72 km, thought to be mesothermal magmatic hydrothermal gold deposit. Unmixing ore fluid plays an important role in the formation of large industrial gold deposit. Fluid inclusion research shows that No. 2 lode is promising for the searching of the ores. At the depth of No. 1 lode below -211m, there are less possibilities to find the relatively large gold ore bodies and the south side of the No. 1 lode is the most favorable site.