景点的名称：公园地质概况 Introduction to regional geology within the Geopark
The Carboniferous - Triassic strata were the most widely distributed in Donglan region, with the Devonian strata outcropping sporadically. The sedimentary paleoenvironment of these strata is mainly marine facies, with some marine and continental transitional facies strata and few continental strata. The lithology is mainly carbonate rock (mainly limestone, dolomite, etc.), and a small amount of clastic rock (sandstone, mudstone, flysch, etc.).
The region is located in the middle section of front arc west wing of Guangxi epsilon- type structure, dominated by NW trending structure and convolute structure. The east-west tectonic section exposed partially. These tectonic belts and their associated structural features formed extremely complex regional structures.大规模的碳酸盐岩是形成喀斯特地貌的物质基础，各种构造面（断层、节理、层面等）为喀斯特地貌发育提供条件，湿润多雨的气候是雕琢大地的一双巧手。
Large-scale carbonate rocks are the material basis of the formation of karst landform. All kinds of structure planes (fault, joint, stratum, etc.) provide conditions for karst landscape development. The humid and rainy climate caves the earth.