According to the analysis of rocks features and sedimentary environment, the section pertains to carbonate tableland facies.
通过对该地层中岩石特征及沉积环境等方面的分析，认为该区在研究层段内属于碳酸盐台地相。
According to petrology, biological assemblage and structural features of carbonate rocks, the sedimentary environments of formations of the carbonates in Yichang area are reconstructed.
根据本区寒武系的岩石学特征、生物组合特征和沈积构造特征重建了各组段的沈积坏境。
Nevertheless, the combined carbon content and isotope analyses of micro-carbonate in metamorphic rocks can be used to make a distinction in origin between sedimentary and igneous protoliths.
不过，变质岩中微量碳酸盐的碳含量和碳同位素比值分析能够对原岩类型提供有效的判别。
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