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如何科学地对地层进行分类是地层学研究中的一个重要问题。由岩石地层、层序地层、年代地层构成的新的三重地层分类方案见表1。
How to classify the stratum scientifically is an important issue in stratigraphic study. The new triple strata classification scheme consisting of rock strata, sequence stratigraphy and chronostratigraphy is shown in Table 1.