我国南方碳酸盐岩沉积区,主要为古生代及中生代早期海相地层的沉积。即印支运动以前,包括震旦纪至三迭纪之间各个时代地层的沉积。这类碳酸盐岩沉积区大致可以分为两种类型,即覆盖区及裸露区:覆盖区是布海相碳酸盐岩沉积地层之上覆盖有中、新生界陆相地层的沉积区;裸露区则是碳酸盐岩地层直接暴露于地表,或者在其上有较薄的第四系地层的沉积区。 Carboniferous sedimentary areas in southern China are dominated by Paleozoic and Early Mesozoic marine sediments. That is, before the Indosinian movement, including the sedimentation of various strata between Sinian and Triassic. These carbonate sedimentary areas can be divided into two types: cover area and bare area: the covered area is a sedimentary area covered by Meso-Cenozoic terrestrial strata above the cloth marine carbonate sedimentary formation; The bare area is where the carbonate stratum is directly exposed to the earth’s surface or has thinner Quaternary sedimentary areas.