Fulianpeng Fm
Type Locality and Naming
East-central Yunnan. The Fulianpeng Fm was named by the No.7 Team, No.2 Party of Regional Geological Survey, Yunnan Bureau of Geology in 1965. The type section is in Cunzhu-Fulianpeng, Eshan County, Yunnan Province. It is a (5/7) formation of the Kunyang Gr.
Synonym: （富良朋组）
Lithology and Thickness
The lower part of the formation is dominated by grey-green marl, calcareous siltstone and calcareous slate. Upward the micro-laminated marl increases. The upper part is composed of interbedded grey-green and weathered pale-blue marl, metamorphosed andesite, crystal tuff, andesite tuffite and tuffaceous sericite slate, constituting a rhythmic interbedding, with the marl increasing gradually in the top part. Sometimes lenticular or vein-shape iron ore deposits and Fe-Mn deposits occur in the upper and lower parts of the formation. The thickness varies from 151 m to 216 m.
Relationships and Distribution
Lower contact
The base is underlain conformably by the Heishantou Fm.
Upper contact
The top is conformably overlain by the Dalongkou Fm.
Regional extent
The formation is outcropping mainly in Luquan, Shiping and Yuanjiang counties of central Yunnan Province and in the Eshan-Yuxi area of Yunnan.
GeoJSON
Fossils
East-central Yunnan. Around Eshan, the lower part of the formation yields microplants such as Leiopsophosphaera, Pseudozonosphaera, Microconcentrica.
Age
Depositional setting
Additional Information