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Guliya Gr

Guliya Gr

Period: 
Carboniferous

Age Interval: 
C2 (), Late Carboniferous


Province: 
Xizang (Tibet)

Type Locality and Naming

The type section is lies at the north side of Bangdaco on the northern border of Rutog County, Tibet. It was named by the Regional Geological Survey Party of Tibetan Bureau of Geology and Mineral Resources in 1987.


Lithology and Thickness

Turbidites. A suite of extremely thick clastic sediments of flysch nature, with interbeds of black slate, light-gray thin-bedded limestone, phyllite and carbonaceous slate, intercalated with siliceous rock, limestone and pebbled slate, pebbled sandstone and sandstone layers, showing oblique and crossed beddings. The rocks are commonly weakly metamorphosed. Exposed thickness 3878.2 m.


Lithology Pattern: 
Pelagic marl


Relationships and Distribution

Lower contact

Uncertain: Bottom relations are unclear

Upper contact

Disconformable contact with the overlying Cretaceous Tielongtan Gr; but Top relations are unclear.

Regional extent

Distributed along Wolonggang of the southern Kunlun−Guliya Mountain Pass−north of Dahongliutan in a southward-protruding arc, extending over 500 km from east to west.


GeoJSON

null

Fossils

In the group are only seen crinoid stems, corals, plant fragments and minor ichnofossils.


Age 

Assigned as Late Carbonferous; but the fossils cannot provide evidence for age determination of the strata. Correlations can only be made roughly on the basis of the regional data, the Qiatier Gr of the Karakorum region, the Mushirabuka Gr of the Qangtang region and the Guchang Gr of the Gandise region in terms of sedimentary formation, sedimentary facies environment and metamorphism degree, as well as the pebbled slate which is of special significance.

Age Span: 

    Beginning stage: 
Bashkirian

    Fraction up in beginning stage: 
0.0

    Beginning date (Ma): 
323.40

    Ending stage: 
Gzhelian

    Fraction up in the ending stage: 
1.0

    Ending date (Ma):  
298.89

Depositional setting

It is interpreted as a shelf deposits influenced by glacial dropstones (pebbled slate)


Depositional pattern:  


Additional Information


Compiler:  

Fan Yingnian