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中扬子区晚石炭世碳酸盐岩的成岩作用主要为白云石化作用、压实一压溶作用、溶解作用，次为重结晶作用、胶结作用，局部有去云化、硅化、去硅化、黄铁矿化、膏化和去膏化．岩溶作用不同程度叠加在各类成岩作用之上，它们可通过成岩组分和组构鉴别；根据成岩组构、氧碳同位素、微量元素含量和成岩组分的阴极发光特征将碳酸盐岩的成岩环境分为海水、大气淡水、混合水和埋藏等成岩环境．各种成岩环境及成岩作用在碳酸盐岩的成岩历史演化过程中相互叠加，构成复杂的成岩作用序列和成岩环境组合．
The diagenesis of the Late Carboniferous carbonate rocks in the middle Yangtze area was dominated by dolomitization, compaction-depressurization, dissolution, secondary recrystallization, cementation, partial de-cloudification, silicification, de-silicification, yellowing Iron mineralization, creaming and creaming. Different degrees of karstification superimposed on various diagenesis, they can be identified by diagenetic components and structures; according to diagenetic structure, oxygen and carbon isotopes, trace element content and diagenetic components of the cathodoluminescence characteristics of carbonate rock Diagenetic environment is divided into seawater, atmospheric freshwater, mixed water and buried diagenetic environment. Various diagenetic environments and diagenesis superimposed on each other during the diagenetic evolution of the carbonate rocks and formed complex diagenetic sequences and diagenetic environmental assemblages.