属于三叠纪早期薄板状灰岩单斜构造。河水沿薄板状灰岩层理或裂隙虹吸上升并蓄存，成为饱和态层间水或裂隙水。当饱和的含水层遇到开放性溶洞或裂隙时，随机溢出，形成上升泉瀑布。三叠纪早期薄板状灰岩单斜构造距今大约2.5亿年。

These are early Triassic laminated limestone monoclinal structure. The river water was ascended and accumulated along laminated limestone bedding or fissure siphon, turning into saturated water or fissure water between layers. Saturated aquiferrandomly overflows and forms ascending spring waterfall with open cavity or fissure. The Early Triassic lamellar limestone monoclinic structure is about 250million years ago.