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Tangbian Formation
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Tangbian Fm base reconstruction

Tangbian Fm

Period: 
Cretaceous

Age Interval: 
Late Cretaceous, K2tb, (39a)


Province: 
Jiangxi

Type Locality and Naming

The name of Tangbian Formation was described by the Geological Survey Team in 1982. The key section is the Kekou-Tangbian section between the Qianshan and Hengfeng counties (117º41'E, 28º16'N).


Lithology and Thickness

The Tangbian Formation is composed of brownish red and grayish green sandstone, siltstone and mudstone, with interbeds of sandy conglomerate. It is 240 to 3060 m in thickness.


Lithology Pattern: 
Fine-grained sandstone


Relationships and Distribution

Lower contact

The Tangbian Formation conformably contacts with the underlying Hekou Fm.

Upper contact

The Tangbian Formation conformably contacts with the overlying Lianhe Fm.

Regional extent

It distributed in Qianshan, Hengfeng, Guangchang, Taihe and Ganzhou areas.


GeoJSON

{"type":"Feature","geometry":{"type":"MultiPolygon","coordinates":[[[[117.18,29.2],[117.82,28.4],[117.99,28.02],[117.71,27.9],[117.47,27.72],[117.25,27.57],[117.18,27.58],[117.01,27.71],[116.92,27.98],[116.85,28.3],[116.87,28.67],[116.85,29.01],[117.03,29.18],[117.18,29.2]]]]}}

Fossils

The formation yields ostracods Cypridea sp., Cyprinotus sp., Pontocypris sp., Candona sp., Candoniella sp., Iliocypris sp., Pseudococypris sp.; dinosaur egg Elongatoolithes elongates sp. and Spheroolithus sp.


Age 


Age Span: 

    Beginning stage: 
Campanian

    Fraction up in beginning stage: 
0.3

    Beginning date (Ma): 
80.21

    Ending stage: 
Campanian

    Fraction up in the ending stage: 
0.9

    Ending date (Ma):  
73.32

Depositional setting


Depositional pattern:  


Additional Information


Compiler:  

Wan Xiaoqiao