Mazongling Fm
Type Locality and Naming
The exact locality of the type section is unknown, and the reference section is at Leidapo in Wudang district of Guiyang City, Guizhou Province.
It was named by Yue Senxun and Jiang Rong in 1944 based on the Ting’s manuscript in 1929. Pan Jiang et al quoted it formally in 1978.
Lithology and Thickness
Sandstone. It is composed of grayish-white and yellowish-pink thin- to medium-bedded quartz sandstone, partly intercalated with iron-bearing siltstone and shale. The formation is 150 m in thickness,
Relationships and Distribution
Lower contact
The formation has a conformable contact to the underlying purplish-red quartz sandstone of the Wudang Fm (lower formation of the Mangshan Gr.)
Upper contact
The formation is overlain by clayey dolomite of the Gaopochang Fm.
Regional extent
It is distributed in the area from Wudang to Gaopochang in the outskirts of Guiyang City.
GeoJSON
Fossils
The formation yields fossil Bothriolepis in the upper part.
Age
Depositional setting
It is interpreted as a littoral facies deposit.