谈花岗岩地区的孤石成因

Discussion on the boulders causes in granite area

通过宏观地质分析、岩石的物理力学试验等,深入分析了花岗岩球状风化的成因,指出区域构造对孤石的发育起着宏观控制作用,花岗岩孤石的矿物成分、岩体结构特征是差异风化的物质基础,气候和地下水条件是孤石区域分布的重要外部环境条件。

Through the macroscopic geological analysis on the physical mechanics test of rock etc. , in-depth analyzed the formation causes of spherical weathering granite body, pointed out that the regional structure had macro-control role to boulder development, the mineral composition of granite boulders, rock structure character was the material basis of differential weathering, the climate and groundwater conditions was impor- tant external environment conditions to boulder regional distribution.