摘要
用X射线粉末衍射法测定了39个采自花岗岩的微斜长石T_1位A1的占位率,并与其红外有序度0进行了对比,建立了微斜长石X射线有序度∑t_1、红外有序度0及保持最终结构状态的最低平衡温度T(℃)之间的简单数学关系式及图解。据此可以方便地辅助判定花岗岩的成因演化和说明其冷却历史。
Al occupancy ratios in T_1 sites of 39 microcline samples from granites are analysed by means of X-ray powder diffraction. A comparison with the infrared ordering θ of the corresponding samples establishes the simple mathematic relations and diagrams are established between X-ray ordering Σt_1, infrared ordering θ of the microclines and the lowest temperature T(℃) that maintains their ultimate structural state. It is convenient to use these results to provide supplemental information for the study of the cooling history and genetic evolution of granite complex.
基金
国家自然科学基金
关键词
微斜长石
冷却历史
花岗岩
铝
硅
microcline, ordering, equilibrium temperatre, cooling history, granite
