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由于赣中南及邻区地壳初始物质应分的不均匀性而导致的地壳重熔型花岗岩岩石化学成分和成矿元素的差异,以及U、W-Sn、TR、Nb-Ta等与壳型花岗岩有关的成矿元素地球化学性质的差异,决定了这些元素的不共生性,而各自有其成矿专属岩体。按成矿专属性可将本区燕山期花岗岩划分为产U系列花岗岩和产TR、W-Sn、Nb-Ta系列花岗岩。二系列岩体的岩石化学成分和副矿物组合有明显的差别。据此建立的岩石化学数值多元线性判别函数式能判别二系列岩体;对产W-Sn、TR、Nb-Ta系列岩体能进行二级判别,同时能判别壳源型花岗质侵出岩的产矿性,以及区分加里东期交代花岗岩及混熔过渡型Cu花岗若。
Because of the heterogeneity of the crustal initial materials in the central, southern and central Jiangxi Province, the chemical composition and ore-forming elements of the crust remelted granite are different from those of the crustal granites, such as U, W-Sn, TR, Nb- The differences in the geochemical characteristics of the ore-forming elements determine the non-symbiosis of these elements and each has its own metallogenic rock mass. According to mineralization specificity, Yanshanian granites in this area can be divided into U-series granites and TR, W-Sn and Nb-Ta series granites. Two series of rock mass rock chemistry and deputy mineral combination have obvious difference. The multi-linear discriminant function of petrophysical values established by this method can discriminate two series of rock mass. The rock mass of W-Sn, TR, Nb-Ta series can be discriminated by two-level discriminant, Rock production, as well as to distinguish between the Caledonian dating granite and mixed transitional Cu granite if.