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Xinghuo Formation

Xinghuo Fm

Period: 
Carboniferous

Age Interval: 
C2 (13c), Late Carboniferous


Province: 
Heilongjiang

Type Locality and Naming

The type section is lies on the north bank of the middle Guanniao River, Nenjiang County, Heilongjiang. It was named by Zhang Hairi et al. in 1976, and formally cited in Regional Geology of Heilongjiang Province in 1989.


Lithology and Thickness

Volcaniclastics and Volcanics. Lower part is dominated by tuffaceous sandstone, siltstone and slate, intercalated with volcanic breccia and tuffaceous lava. Upper part consists of lava, rhyolite, dacite and dacitic lava. Thickness >772 m.


Lithology Pattern: 
Volcanics


Relationships and Distribution

Lower contact

Unknown: The contact relationships with the underlying strata are unclear

Upper contact

Unknown: The contact relationships with the overlying strata are unclear

Regional extent

Distributed mainly in the areas such as Sandaogou and Niqiuhe Village of Heihe City, Guanniao River and Bashili Stream of Nenjiang County.


GeoJSON

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Fossils

The siltstone in the Lower part yields Plant Noegerathiopsis sp.


Age 

A K-Ar isotope date on granodiorite in the formation was 292 Ma. Formation is inferred to be Late Carboniferous in age

Age Span: 

    Beginning stage: 
Bashkirian

    Fraction up in beginning stage: 
0.0

    Beginning date (Ma): 
323.40

    Ending stage: 
Moscovian

    Fraction up in the ending stage: 
1.0

    Ending date (Ma):  
307.02

Depositional setting


Depositional pattern:  


Additional Information


Compiler:  

Liu Fa