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

Ninggongqujiulong Fm

Period: 
Permian

Age Interval: 
P (57), mid-Middle Permian


Province: 
Xizang (Tibet)

Type Locality and Naming

The type section is located at a point of about 2 km to the east of the Ninggongqujiulong Village about 30 km to the northeast of the Margaichaka area of the Kunlun Mt. Region, Tibet. It was named by Wen Shixuan in 1979. Upper formation of Kamrbo Gr.


Lithology and Thickness

Limestone and Clastics. Grey, grey-green and dark-green metamorphosed limestone, quartz-sandstone, sandy shale and shale. Thickness is over 900 m.


Lithology Pattern: 
Sandy limestone


Relationships and Distribution

Lower contact

Next older unit in this region is the Xiaochaka Fm

Upper contact

Uncertain; no top having been found. Next younger unit in this region is the Rejuechaka Fm.

Regional extent

Distributed on the southern side of the Kunlun Mt. Region to the north of Margaichaka and in between the Jiangnichaka and the Samasuijiari Mt. In the area to the north of the Jiangnichaka there are many sandstones that have been strongly metamorphosed to produce marbles and shales, with a smaller thickness. In the Samasuijiari Mt. area the formation is 2002-m thick. On the northern side of the Kunlun Mt. the formation is exposed in the south of the Karamulun Mt. Pass, and extending till the area of the Zhengquan Lake, where it is composed of variegated clastic rocks.


GeoJSON

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Fossils

On northern side of the Kunlun Mt., it yields Fusulinida represented by Schwagerina shuanghuensis and Lantschichites kalamulunica; Brachiopods such as Leptodus nobilis; and Bryozoan such as Fenestella perelegans, etc.


Age 

Assigned as mid-Middle Permian

Age Span: 

    Beginning stage: 
Capitanian

    Fraction up in beginning stage: 
0.0

    Beginning date (Ma): 
264.34

    Ending stage: 
Capitanian

    Fraction up in the ending stage: 
1.0

    Ending date (Ma):  
259.55

Depositional setting


Depositional pattern:  


Additional Information


Compiler:  

Hou Jingpeng