Home Multi-Country Search About Admin Login
Cenozoic
Cretaceous
Jurassic
Triassic
Permian
Carboniferous
Devonian
Silurian
Ordovician
Cambrian
Neoproterozoic
Mesoproterozoic

Search by
Select Region(s) to search
Hold Ctrl (Windows/Linux) or Command (Mac) to select multiple
Beitongqigou Formation

Beitongqigou Fm

Period: 
Carboniferous

Age Interval: 
C11 (12), Tournaisian Stage (early Early Carboniferous)


Province: 
Jilin

Type Locality and Naming

The type section is at Beitongqigou (gully), Dasuihe Township, Yongji, Jilin. It was named by Liu Fa et al. in 1975.


Lithology and Thickness

Sandstone. Consists mainly of gray and gray-yellow fine-grained sandstone, siltstone and green-gray to light-gray medium−fine-grained sandstone, siltstone and siliceous siltstone intercalated with tuffaceous fine-grained sandstone, about 212 m thick.


Lithology Pattern: 
Fine-grained sandstone


Relationships and Distribution

Lower contact

Unconformable contact with the underlying Silurian System

Upper contact

Conformable contact with the overlying Lujuantun Fm (Luquantun Fm)

Regional extent

Distributed only around Dasuihe Township, Jilin


GeoJSON

null

Fossils

Lower part yields a large number of brachiopods Fusella biplicatus, F. louisianensis, F. cf. taidonensis, Brachythyris pecularis, B. chouteauensis, Syringothyris cf. halli, S. cf. hannibolensis, Cyrtospirifer sp., Tylothyris cf. transversa, T. subcircularis, Schizophoria cf. chouteauensis, Eumetia vereuilliana, Retzia jilinensis, Camarotoechia biplex, etc. as well as trilobites, bivalves, bryozoans, etc.


Age 

Tournaisian Stage (early Early Carboniferous)

Age Span: 

    Beginning stage: 
Tournaisian

    Fraction up in beginning stage: 
0.0

    Beginning date (Ma): 
359.30

    Ending stage: 
Tournaisian

    Fraction up in the ending stage: 
0.5

    Ending date (Ma):  
353.02

Depositional setting

It is interpreted as river-deltaic sediments.


Depositional pattern:  


Additional Information


Compiler:  

Liu Fa