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Shiqianfeng Gr

Shiqianfeng Gr

Period: 
Permian

Age Interval: 
P3 , (36-43), Lopingian Epoch (Late Permian) through Early Triassic


Province: 
Shanxi

Type Locality and Naming

The type section is located in the area of the Guantou Village of the Shiqian Peak, West Hills of Taiyuan City, Shanxi Province. It was named by Norin E. in 1922-1924.

Synonym: Shihchienfeng Gr


Lithology and Thickness

Sandstone. Composed mainly of fresh-red siltstone and feldspar-rich sandstone, comprising the Sunjiagou Fm of the Lopingian Epoch of Permian Period, and the Liujiagou Fm and the Heshangou Fm of the Triassic Period.


Lithology Pattern: 
Siltstone


Relationships and Distribution

Lower contact

Conformable or a disconformable contact with the underlying Shangshihezi Fm

Upper contact

Conformable contact with the overlying Ermaying Fm

Regional extent

See component Sunjiagou Fm (uppermost Permian), Liujiagou Fm (lowermost Triassic) and Heshangou Fm (lower Triassic)


GeoJSON

null

Fossils

See component Sunjiagou Fm (uppermost Permian), Liujiagou Fm (lowermost Triassic) and Heshangou Fm (lower Triassic)


Age 

Lopingian Epoch (Late Permian) through Early Triassic

Age Span: 

    Beginning stage: 
Wuchiapingian

    Fraction up in beginning stage: 
0.3

    Beginning date (Ma): 
257.96

    Ending stage: 
Olenekian

    Fraction up in the ending stage: 
1.0

    Ending date (Ma):  
246.70

Depositional setting

It is interpreted as a suite of arid-basin river-lake facies deposits


Depositional pattern:  


Additional Information


Compiler:  

Shang Qinghua