临沂中北部地区脉石英矿资源特征及潜力分析

Resource Characteristics and Potential Analysis of Vein Quartz in North-central Area of Linyi

临沂中北部地区是高纯石英原料产地之一,该地区脉石英主要为变质热液型、岩浆热液型及伟晶岩型脉石英三类。矿体多呈复合透镜状、脉状,整体分布呈北西向条带展布。矿石自然类型主要为乳白色脉石英、含晶脉石英、砂糖状脉石英、水晶四类,矿石中杂质、包裹体较少,质量较好。综合分析区域地质背景、成矿地质条件等情况,该地区脉石英矿找矿前景较好,资源潜力较大。

The north-central area of Linyi is one of the sources of high-purity quartz raw materials,there are three types of vein quartz ore bodies,namely metamorphic hydrothermall type,magmatic hydrothermal type and pegmatite type.The ore bodies are mostly lenticular and veinlike,and are distributed in NW trending belts.The mainly natural types are milkiness vein quartz,quartz containing crystal vein,saccharoidal vein quartz and crystal.There are few impurities and inclusions in the ore and the quality is good.Based on comprehensive consideration of regional geological background,ore-forming geological conditions,the prospecting potential of vein quartz in this area is better and and the potential for prospecting is huge.