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Yuelushan Formation

Yuelushan Fm


Period: 
Devonian

Age Interval: 
D3 (69), Late Devonian


Province: 
Hunan

Type Locality and Naming

The type section is located at Kuntao Pavilion-Wulun Pagoda of Yuelushan Hill, Changsha City, Hunan Province. It was named by Tian Qijun (=Tien C. C.) in 1928.


Lithology and Thickness

Terrestrial clastics. The formation, 250 m thick, is mainly characterized by terrestrial clastics, consisting of a Lower part of thick-bedded sandstone with conglomerate; and an Upper part of gray, grayish-white and yellow thin-bedded fine-grained sandstone intercalated with shale, siltstone and a bed of oolitic hematite.


Lithology Pattern: 
Sandstone


Relationships and Distribution

Lower contact

The Formation rests disconformably with a basal conglomerate on the Wujiafang Fm.

Upper contact

Regional extent

The Formation is mainly distributed along the south side of Jiangnan Old Land and widespread in Changsha-Ningxiang area.


GeoJSON

null

Fossils

It contains a few fragments of coral Disphyllum sp., “Atrypa” sp. Yunnanella sp.


Age 

Late Devonian

Age Span: 

    Beginning stage: 
Frasnian

    Fraction up in beginning stage: 
0.0

    Beginning date (Ma): 
378.90

    Ending stage: 
Famennian

    Fraction up in the ending stage: 
1.0

    Ending date (Ma):  
359.30

Depositional setting

It is interpreted as a littoral environment.


Depositional pattern:  


Additional Information


Compiler:  

(Hou Hongfei)