火石坡位于贵州省中部的普定县境内,构造部位处于青菜关背斜西翼,地层倾角平缓,出露有三叠系下统安顺组上段(T_1a~(2-3))及中统关岭组下段(T_2g~1)的硫酸盐一碳酸盐岩石。岩溶的发育独具特色,尤其是在岩溶地下水的赋存运移空间及水文地球化学方面更有突出的特征。 为了弄清岩溶发育的进程,机理和水文地球化学的演变历史,需要了解地下水溶液中各种物质之间的平衡关系。一般用饱和指数(SI)来衡量这种关系: Flint slope is located in Puding County in the central part of Guizhou Province. The tectonic site is located in the west wing of the Gansuanguan anticline, and the dip of the formation is gentle. Upper Triassic Anhun Formation (T_1a ~ (2-3)) and Zhongguancun Range Sulfate-carbonate rock in the lower section (T_2g ~ 1). The development of karst is unique, especially in the area of ​​karst groundwater movement and hydrogeochemistry. In order to understand the process and mechanism of karst development and the evolution history of hydrogeochemistry, it is necessary to know the balance between various substances in the underground water solution. The saturation index (SI) is generally used to measure this relationship: