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华南海相三迭纪的各个沉积(地层)区中,只有稳定的扬子区海台或碳碱盐坪台上才见有蒸发岩沉积。在这套沉积中已经发现十一个蒸发岩层位,其中七个层位见石盐岩和少量钾镁盐矿物。从蒸发岩相系列、沉积构造、盐类矿物组合、以石盐岩溴氯系数、硬石膏岩硫同位素为代表的地球化学指数、以及成盐前的碳酸盐沉积中所发现的菊石、有铰纲腕足类、双壳类、海百合、底凑有孔虫等生物组合,诸标志系列都说明这套碳酸盐—蒸发岩沉积具有确定的海相性。
Among all the sedimentary (stratigraphic) zones in the Triassic sediments of the South China Sea, only stable sediments of evaporites have been found on the sea-bed of the Yangtze area or on the carbonate-alkali salt platform. Eleven evaporite beds have been found in this sediment, seven of which are characterized by rock salt rock and small amounts of potassium and magnesium salts. From the series of evaporites, sedimentary structures, salt mineral assemblages, the geochemical index represented by the bromochloric coefficient of rock salt rock and the sulfur isotope of anhydrite rock, and the ammonites found in carbonate sediments before salt formation, Brachiopods, bivalves, sea lilies, foraminifera at the end of the combination of biological combinations, the series of signs that this set of carbonate - evaporite sediments have a definite marine properties.