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重砂法是一种古老而有效的找矿方法,迄今已有两千年的历史。以秦巴地区金矿为背景,收集大量原生金矿床、砂金矿床和金矿物自然重砂等资料的基础上,从砂金矿床金粒特征、岩金矿金粒特征、自然重砂金矿物特征几个方面对含金矿物种类、自然金粒大小、成色、结构构造等进行对比分析,运用现代物理及化学搬运、沉淀机理,深入剖析水动力情况下水的流速与岩屑或自然金粒粒径的关系,氧化环境或氯离子存在的溶液中金的络合物形成、分解、沉淀的过程,对金矿物异常与含金地质体(金矿床点)之间的内在联系和规律进行了分析探讨,并划分了金矿物异常种类,为预测金矿产类型提供依据。
Heavy sand method is an ancient and effective prospecting method, so far, two thousand years of history. Based on the gold deposits in the Qinba area, a large number of gold deposits, gold deposits and natural gravels are collected. Based on the gold features of the gold-gold deposits, the gold grains of the gold deposits and the characteristics of the natural grained gold deposits In this paper, we compare and analyze the types of gold minerals, the size of natural gold, the color, the structure and so on. By using modern physics, chemical handling and sedimentation mechanism, we deeply analyze the relationship between water velocity and particle size of cuttings or natural gold under hydrodynamic conditions , Oxidative environment or chloride ions in the solution of gold complex formation, decomposition, precipitation process, the relationship between the abnormalities of gold minerals and gold-bearing geological bodies (gold deposit point) were discussed and discussed, and Divided the abnormal types of gold minerals, to provide the basis for the prediction of gold mineral types.