Qunping Fm
Type Locality and Naming
The type section is located at near Duowen Village, Qinjia of Yandong Town, 40 km southeast of Debao County. The name was proposed by Wu Y. and Yan C.X. in 1980 as an upper member of Debao Fm and is promoted here as a formation.
Lithology and Thickness
Limestone. The formation can be proximately divided into two part: Lower part, 65.16 m thick, is characterized by grayish, dark grayish thin to medium thick bedded argillaceous limestones, bioclastic limestone, intercalated with few calcareous mudstone, lenses of course grained dolomite; Upper part, 154 m thick, consists of light grayish, pink thick bedded medium- to thick-bedded limestone with massive dolomites..
[Figures: Outcrop view of Qunping Fm at Chengtun of Qinjia (left) and the Zdimir bed in the lateral equivalent of Nalai section of Pohong Town, Baise (right, after Lu et al., 2017). Length of hammer 31.5 cm.]
Relationships and Distribution
Upper contact
Conformably overlain by the Liujiang Fm.
Regional extent
It is distributed in Bahe of Tiandeng, southwest Guangxi.
GeoJSON
Fossils
The fossils are moderately rich include: Rugose corals Tryplasma sp., Grypophyllum sp., Acanthophyllum cf. guitangensis, Macygeea sp, Temnophyllum sp.; Tabulate corals Cladopora sp., Thamnopora sp., Heliolites insolens, Pachyfavosites sp. Brachiopods Zdimir comspecta, Megastrophia uralensis. Conodont Polygnathus serotinus, P. l. linguformis; and stromoatoporoids.
Age
Depositional setting
It is interpreted as an open carbonate platform and platform margin environments.
Additional Information