热液金矿矿化指数波动特征及沉淀成矿机理研究

Mineralization characteristics of exponential fluctuations and deposition mechanism of hydrothermal gold deposits

基于胶东半岛某热液金矿床品位、线金属量等矿化丰度的数理统计成果,对热液金矿三维空间的矿化指数波动特征及成矿机理进行了研究。根据矿体走向、倾斜、厚度三个方向的品位、线金属量的曲线变化特征,提出矿化丰度在各峰谷段落内呈"指数函数波动",说明热液矿床金的沉淀成矿机制符合一级化学反应速度"质量作用定律";根据矿化指数函数变化规律,提出了计算热液金矿体平均品位与线金属量的"对数平均法"。这些研究成果对进一步认识热液金矿的矿化特征,处理"特高品位",改进传统的金矿矿产储量计算方法,以及指导开发利用,具有重要的理论意义与实用价值。

Based on mathematical statistics on mineralization abundance ,including grade and linear productivity , of a hydrothermal gold deposit in Jiaodong Peninsula , three dimensions mineralization characteristics on exponential fluctuations and deposition mechanism of hydrothermal gold deposits are studied .Mineralization abundance fluctuations in exponential function from peak to valley are introduced based on change curves’ feature of grade and linear productivity in strike ,dip and thickness direction , which means gold deposition mineralization mechanism of the deposit accords to mass action law of the first order chemical reaction rate .Logarithmic average method to calculate average grade and linear productivity of hydrothermal gold deposits is put forward in accordance with mineralization fluctuations law in exponential function . These research results have academic significance and practical value for further studies on hydrothermal gold mineralization characteristics , processing extra high grade , improving traditional estimation methods and advising development and utilization of gold mineral reserves .