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花岗岩类在地壳中分布最广,它与内生金属矿产有着极其密切的关系,不同花岗质岩石控制着不同类型的内生金属矿产,目前已被广大地质工作者所重视.因此花岗岩类岩石的正确定名,无疑对寻找和评价内生金属矿产有着重要意义.然而岩石的正确定名又取决于对岩石的主要造岩矿物(石英、斜长石、钾长石及黑云母等)含量的准确测定,因造岩矿物的颗粒过于粗大或过细,镜下对矿物的定量往往不精确,影响了岩石的正确定名.因此产生了岩石化学数据-氧化
Granite is the most widely distributed in the crust, it is closely related with the endogenous metallogenic minerals, different granitic rocks control different types of endogenous metallogenic minerals, has been valued by the majority of geological workers.Therefore, granite rock Is undoubtedly of great significance in the search and evaluation of endogenous metallogenic minerals.However, the correct naming of rocks depends on the accuracy of the content of the major rock-forming minerals (quartz, plagioclase, K-feldspar and biotite) As a result of the granulometry of rock-forming minerals being too coarse or too thin, the quantitative quantification of the mineral under the microscope is often imprecise, affecting the correct naming of the rock, thus producing petrochemical data -