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Kewoxiga Formation
Click to display on map of the Ancient World at:
Kewoxiga Fm base reconstruction

Kewoxiga Fm

Period: 
Permian

Age Interval: 
C2-P1 (54b), late Carboniferous or early Permian


Province: 
Xizang (Tibet)

Type Locality and Naming

The type section is located in the area extending from the east of the Kangma (Kangmar) County Town to the Baidingpu area, Tibet. It was named by Zhang Binggao in 1974.

Synonym: called Kepu Fm on Carboniferous column for this Kangma regin.


Lithology and Thickness

Claystone. Dark-grey pebble-bearing sandy slate. Thickness is over 200 m.


Lithology Pattern: 
Glacial till


Relationships and Distribution

Lower contact

Unknown contact with the underlying strata. Carboniferous column for Kangma implies next older formation is the Polinpo Fm

Upper contact

Conformable contact with the overlying Bilong Fm

Regional extent

Distributed in the area of the Kangma County. The Zadari Conglomerate Member of the Jilong Fm in the Dingri area (Yin Jixiang, Guo Shizeng, 1974) is concordant with the formation both in its lithology and stratigraphic horizon => glaciomarine deposits.


GeoJSON

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Fossils


Age 

Assigned as late Carboniferous or early Permian

Age Span: 

    Beginning stage: 
Gzhelian

    Fraction up in beginning stage: 
0.5

    Beginning date (Ma): 
301.28

    Ending stage: 
Sakmarian

    Fraction up in the ending stage: 
1.0

    Ending date (Ma):  
290.51

Depositional setting


Depositional pattern:  


Additional Information


Compiler:  

Wang Yujing

GeoJSON estimate by Longgang Ye and Yuyin Li (Chengdu Univ. Tech. students)