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在川南古宋煤田富安井田上二叠统龙潭煤系勘探过程中，发现其底板阳新灰岩内深部岩溶发育。文章根据电网络模拟及水化学资料，建立了阳新灰岩的岩溶水系及其结构，并通过岩溶水系铀含量及同位素（２３４Ｕ及２３８Ｕ）组成的研究，进一步为分析分支水系补给区、径流区及排泄、混合区的水文地质特征及地球化学环境提供了依据
During the exploration of the Upper Permian Longtan coal system in the Fu’an Minefield in the ancient Song Dynasty coalfield, deep karst development in the Yangxin limestone of the bottom plate was found. In this paper, the karst water system and its structure of Yangxin limestone are established according to the electric network simulation and water chemistry data. Based on the study of uranium content and isotopic composition (234U and 238U) in karst water system, Excretion, hydrogeological characteristics of mixed area and geochemical environment provided the basis