Zusailing Fm
Type Locality and Naming
The name was created by Chen Zepei et al in 1985. The type section is located at Gongjinling, east of Nanhao Village, Baoting County, Henan Province.
Synonym: (足赛岭组)
Lithology and Thickness
It is dominated by gray, bluish gray, grayish black phyllite. Lower part, over 300 m thick, is represented by grayish black carbonaceous phyllite with black phyllite partings. Upper part is occasionally with sericitic quartzose siltstone, light gray medium-to-fine-grained quartzose sandstone and carbonaceous silty slate; the middle and upper parts are intercalated with grayish white crystalline limestone of 274 m in thickness. The total formation is generally 857 m in thickness.
Relationships and Distribution
Lower contact
The formation rests conformably on the Kaoqinshan Fm
Upper contact
It is pseudo-conformably or disconformably overlain by the Nanhao Fm of the Yanguan Stage (Tournaisian Stage of earliest Carboniferous).
Regional extent
It is mainly exposed in the Sanya and Nanhao area.
GeoJSON
Fossils
The Zusailing Fm yields anthozoa Plasmopora sp., ?Amplexoides sp., Tryplasma sp.; brachiopod? Atrypa sp.
Age
Depositional setting
It belongs to littoral-neritic clastic and carbonate sedimentation.
Additional Information