地质勘查阶段煤系石墨与无烟煤的划分指标探究

煤系石墨是煤及煤系炭质页岩在岩浆热接触变质及构造变质作用下形成的，是石墨矿产的重要组成部分，属新兴战略资源。目前由于对煤系石墨赋存规律认识不清，缺乏科学界定的勘查指标，以致造成了严重浪费。在总结以往划分煤系石墨与无烟煤的思路和方法基础上，以吉林磐石、湖南鲁塘、福建西南等典型煤系石墨与无烟煤样品测试结果为依据，分析了煤系石墨有关参数的优缺点，提出采用H/C原子比、晶格间距d₀₀₂、拉曼光谱R₂ 3个参数，作为勘查阶段界定煤系石墨与无烟煤的定量指标。

Indicators for partitioning graphite and anthracite in coal measures during geological exploration phase

Coal-based graphite is formed from coal and carbonaceous shale in coal measures due to magma thermal and tectonic metamorphism, is an important part of the graphite mineral, is also emerging strategic resources. Because the understanding of the ore-forming mechanism of coal-based graphite is not clear, lacking of scientific definition of anthracite with coal-based graphite prospecting indicators caused serious waste. This paper summarizes the train of thought and method of dividing into anthracite and coal-based graphite. on the basis of Jilin Panshi, Hunan Lutang, southwest of Fujian Province some typical coal-based graphite/anthracite, analyzes the advantages and disadvantages of the related parameters of coal-based graphite, three parameters H/C, d₀₀₂, Raman spectroscopy were proposed as quantitative indicator of coal-based graphite and anthracite during exploration stage.