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Naming Stratigraphic Section of Dongyuemiao Limestone

September 24,2024

It is located in Dongyuemiao, Gongjing District, Zigong. Dongyuemiao Limestone was named by geologists Tan Xichou and Li Chunyu in 1933 based on a suite of limestone exposed here as a lithologic stratum of Ziliujing Bed. Later it was called as Dongyuemiao Member, the lowest member of the Lower Jurassic Ziliujing Formation. This member, 5-10 m thick, is dominated by grey shelly limestone and shelly debris-bearing limestone with a lens of quartzarenite at its bottom. It was formed in a high-energy lakeshore shoal environment.


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