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It is located in Ma’anshan Hill, Da’an District, Zigong. Ma’anshan Clay was named by geologists Tan Xichou and Li Chunyu in 1933 based on a suite of mudstone exposed here as a lithologic stratum of Ziliujing Bed. Later it was put into Ma’anshan Member, a middle member of the Lower Jurassic Ziliujing Formation. Ma’anshan Clay, 90 m thick, is dominated by purple silty mudstone with greenish gray muddy siltstone. The ripples are common in the siltstone. It was formed in a very shallow lacustrine-shallow lacustrine environment.
More information
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Fluvio-lacustrine Deposit Strata Section of the Upper Triassic
Gigantspinosaurus sichuanensis Fossil Site
Mamenchisaurus hochuanensis Fossil Site
ZIGONG UNESCO GLOBAL Geopark
E-mail:ziggeopark@foxmail.com
Tel:0813-2218611
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ziggeopark@foxmail.com
+86-0813-2218611
Add : No.4, Binjiang Road, Ziliujing District, Zigong City, Sichuan, P.R. China, 643000
ZIGONG UNESCO GLOBAL Geopark