论文部分内容阅读
香花岭花岗岩不同岩相的岩石化学、微量元素、元素对比值和包裹体温度、压力与成分等方面的研究表明：香花岭花岗岩为Ｈ２Ｏ－Ｆ－ＣＯ２－Ｃｌ流体类型，属超临界流体。在超临界流体作用下，岩浆体系内熔体的粘度、内压、组分活动性及含量，随岩浆演化呈系列变化，导致岩浆体系内的成分强烈分异成层；Ｎｂ、Ｔａ等成矿元素，随岩浆体系内超临界流体的聚集而富集，随体系内射气分异作用的发生而矿化，成矿作用发生在岩浆期。其成岩成矿作用为一连续过程。在这一过程中，岩浆的结晶分异作用和交代、熔蚀作用并存，沉淀作用和溶解作用交替，实质上是岩浆体系的分异作用或自然组织作用过程
The study on petrochemistry, trace elements, elemental contrast, and temperature, pressure and composition of different lithofacies of the Xianghualing granite show that the Xiangghualing granite belongs to the H2O-F-CO2-Cl fluid type and belongs to the supercritical fluid. Under the action of supercritical fluid, the viscosity, internal pressure, compositional activity and content of melt in the magma system change serially with the evolution of magma, resulting in the intense differentiation of the components in the magmatic system. The mineralization of Nb and Ta Element enriched with the accumulation of supercritical fluid in the magma system and mineralized with the occurrence of radiogenic differentiation in the system and the mineralization took place in the magmatic stage. Its diagenetic mineralization is a continuous process. In this process, the differentiation of the crystallization of magma and the substitution, the erosion of the coexist, the sedimentation and dissolution alternately, in essence, is the differentiation of the magmatic system or natural tissue processes