粤北石人嶂钨矿床花岗岩岩石地球化学特征分析

摘要

Based on field investigation and previous research on detail,we are trying to use the theory of ground energy to make a research of rock geochemistry and isotope geology.By focusing on the characteristics of oxide,we have found energy geochemical and Pb isotopic of concealed granite in Shirenzhang tungsten mining area.We have also ascertained its source.The results show that,in this area,the main characteristic of oxide content in body of granite is in high content of silicon with aluminum and alkali rich.It is poor in calcium and low in phosphorus.In the magmatic differentiation and evolution process,the energy and energy coefficients of the rock formed are slowly increasing at the same time.The adjacent rock masses in the display area have similar lead material sources.It is inferred that the concealed granite bodies in Lianhua mountain should be evolved from the same magma and the source of material is mainly the crust source.%在详细的野外调查及前人的研究基础上,运用岩石地球化学、同位素地质学,地能学说等理论和研究方法重点研究了石人嶂钨矿区内莲花山隐伏花岗岩体氧化物特征,岩石能量地球化学特征、Pb同位素特征,探明其物质来源.结果表明该地区花岗岩体氧化物含量以高硅、富铝、富碱、贫钙、低磷为主要特征;岩浆在不断的进行分异演化的过程中,其所形成岩石的能量、能量系数均在同步缓慢递增,显示区域内相临近的岩体拥有相似的铅物质源,由此推测莲花山隐伏花岗岩体也应是从同源岩浆演化而成,来源以壳源为主.