碳酸盐矿物学的研究及其有关的岩相古地理问题,是沉积学的基础研究之一,同时,全世界的石油差不多有一半产于碳酸盐岩中,所以这方面的研究也具有重要的实际意义。方解石和白云石是沉积碳酸盐的主要成分,其化学成分与晶体结构随产地不同而有相当的变化,与其沉积环境及随后的变化密切相关,因此这一方面的研究有助于解决上述问题。 Carbonate mineralogy and its related lithofacies paleogeographic problems are one of the basic studies of sedimentology. In the meantime, almost half of the world’s oil is produced in carbonate rocks, so this study also has Important practical significance. Calcite and dolomite are the main components of sedimentary carbonate. The chemical composition and crystal structure vary considerably with the place of origin, and are closely related to their sedimentary environment and subsequent changes. Therefore, the research in this respect helps to solve the above problems .