Pozhela Fm
Type Locality and Naming
The type section is located at Daliantang to Pozhela, 8 km northeast of Guangnan County, Yunnan.
It was named by Liu Weihua, Yun Yan et al. in 1978. Also called Poheluo Fm (on Hongfei Hou's chart)
Lithology and Thickness
Limestone. It is composed of dark-gray siliceous banded limestone, crystalline limestone and bioclastic limestone, intercalated with siliceous claystone and apatite-bearing claystone.
The thickness is 160 m.
Relationships and Distribution
Lower contact
The formation has a conformably basal contact to the underlying gray thick-bedded limestone of Daliantang Fm.
Upper contact
The formation is overlain by grayish-brown apatite-bearing chert of Fenshuiling Fm.
Regional extent
It is mainly distributed in southeast Yunnan and western Guangxi.
GeoJSON
Fossils
It yields tentaculites of Nowakia cancellata, N. richteri, and N. sulcata zones and conodont Polygnathus serotinus.
Age
Depositional setting
It is interpreted as deep-water platform basin facies deposits.
Additional Information