Bancheng Fm
Period:
Carboniferous, Permian
Age Interval:
C1-P2 (96), late Carboniferous-early Permian
Province:
Guangxi
Type Locality and Naming
The type section is located at Tianche in the vicinity of Bancheng area, Qinzhou City, Guangxi Zhuang Autonomous Region (108°40′, 22°18′). It was named by Zhong Keng et al., in 1992.
Lithology and Thickness
Chert. Grey-yellow and brown-grey thin-bedded chert, siliceous shale and siltstone.
Lithology Pattern:
Relationships and Distribution
Lower contact
Disconformable contact with the underlying Shijia Fm of the Devonian System, with the disappearance of dark-grey cherts from the Shijia Fm and with the occurrence of grey-yellow cherts in the Bancheng Fm serving as a boundary between them.
Upper contact
Unconformable contact with the overlying Pengjiu Fm.
Regional extent
This formation is distributed mainly in the Lingshan, Qinzhou and Fangcheng areas.
GeoJSON
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Fossils
Age
No details given.
Age Span:
Beginning stage:
Tournaisian
Fraction up in beginning stage:
0.0
Beginning date (Ma):
359.30
Ending stage:
Wordian
Fraction up in the ending stage:
1.0
Ending date (Ma):
264.34
Depositional setting
It is interpreted as deep-sea deposits.
Depositional pattern:
Additional Information
Compiler:
Yin Bao’an