广西中部極广泛地分布着中、上石炭紀黄龙灰岩和馬平灰岩以及下二迭紀的栖霞灰岩和茅口灰岩。它們在構造上多形成寬闊平緩的“箱狀”及“槽狀”短軸向斜盆地,盆地內也有上二迭紀及三迭紀地层出露,構造体系完整,有时为逆掩断层带所割切。紅水河由西北向东南流經本区,它是西江流域最大的支流之一,所經石灰岩地区造成极典型的深切峡谷,卡斯特溶洞也很多,水文网不发育,仅有兩条支流——刁江及清 The middle and upper Upper Carboniferous Huanglong limestone and Ma Ping limestone and the Qixia limestone and Maokou limestone of the Lower Permian are widely distributed in central Guangxi. They are widely formed in the structure of broad and smooth “box-shaped” and “trough” short axial syncline basin, the basin also Upper Permian and Triassic strata exposed, the structural system is complete, and sometimes overthrust the fault zone Cut and cut. Hongshui River flows from northwest to southeast through this area. It is one of the largest tributaries in the Xijiang River basin. It has a very deep canyon through the limestone area. There are many caste caves, and the hydrological network is not developed. There are only two tributaries - Diao Jiang and clear