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Zhulumute Formation
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Zhulumute Fm base reconstruction

Zhulumute Fm

Period: 
Devonian

Age Interval: 
D22-D31 (1), Givetian-Frasnian (late Middle to Late Devonian)


Province: 
Xinjiang

Type Locality and Naming

Northwest Junggar. The type section is located at Zhulumute, south of Hongguleleng in Xinjiang Uygur Autonomous Region. It was named by the Cooperative Research Team of Chinese Academy of Geological Sciences and Xinjiang Regional Geological Survey in 1973, and published by Hou Hongfei and others in 1979.


Lithology and Thickness

Tuffaceous sandstone. The Formation is characterized by grayish-green tuffaceous coarse-grained sandstone and fine-pebble conglomerate, and has an incomplete recorded thickness of 1300 m.


Lithology Pattern: 
Volcanic_ash


Relationships and Distribution

Lower contact

Faulted contact onto the underlying Hujierste Fm, which is characterized by a set of normal terrestrial sedimentary sequences.

Upper contact

May be in conformable contact with the overlying Hongguleleng Fm

Regional extent

It is mainly widespread in western Junggar Basin: Bulongguo River, Hebuke River and Zhulumute of Hebukesier County.

Andesite with tuff occurs in the Bulongguoer section and quartz porphyry, andesite porphyry, rhyolite porphyry and basaltic porphyry were recorded in Hebukehe River area.


GeoJSON

{"type":"Feature","geometry":{"type":"MultiPolygon","coordinates":[[[[86.26,48.48],[82.04,47.42],[82.44,45.58],[88.19,44.96],[89.78,46.89],[86.26,48.48]]]]}}

Fossils

It contains plant fossils Leptophloeum rhombicum, Lepidodendropsis theodory, Sublepidodendropsis sp., Cyclostigma kiltorkensis.


Age 

Late Givetian to Frasnian, and perhaps into early Famennian.

Age Span: 
S

    Beginning stage: 
Givetian

    Fraction up in beginning stage: 
0.8

    Beginning date (Ma): 
380.18

    Ending stage: 
Famennian

    Fraction up in the ending stage: 
0.1

    Ending date (Ma):  
369.92

Depositional setting


Depositional pattern:  


Additional Information


Compiler:  

(Hou Hongfei)