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Taoqihe Formation
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Taoqihe Fm base reconstruction

Taoqihe Fm

Period: 
Cretaceous

Age Interval: 
Early Cretaceous, (20) K1tq


Province: 
Heilongjiang

Type Locality and Naming

Jiayin Basin. The name of Taoqihe Formation was given by Zhong Weicheng and Yang Yu (1964) in Taoqihe of Gongzheng Village, Binxian. The type locality is the Gongzheng section of Binxian, Heilongjiang.


Lithology and Thickness

The Taoqihe Formation is a group of conglomerate, sandy conglomerate. To the top, it becomes sandstone, siltstone intercalated with thin bedded conglomerate, tuff and coal beds. The thickness is over 1917 m.


Lithology Pattern: 
Conglomerate


Relationships and Distribution

Lower contact

It conformably overlies the Ganhe Fm according to Jiayin Basin stratigraphy column of D.P. Xi et al, 2019, Cenozoic chapter of China Integrated Stratigraphy and Timescale). [However, the Jiayin basin column of Jingeng Sha in Kosenko et al (2021) does not show a Ganhe Fm, but show a conformable contact onto a volcanic Fuminhe Fm, with a tuff-rich Yongqing Fm below, then a Wuying Gr.]

Upper contact

It conformably unconformably underlies the Yongancun Fm.

Regional extent

The Taoqihe Formation is distributed in the Binxian and Jiayin area of Heilongjiang.


GeoJSON

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Fossils

The Taoqihe Formation yields abundant fossils of plant Brachyphyllum nantianmenense, Pityophyllum lindstromi, Sphenoleis Concinna, Leptosobus sp., Pityophyllum lindstroemi,, Equisetites sp., Muscites sp., Phoemicopsis angustiqolia, Pityophyllum lindstromi, Nilssonia sinensis; spore and pollen Cicatrcosisporites dorogensis, Appendicisporites tricornitaus, Foveotriletes subtriangularis, Laevigatosporites ovatus, Densoisporites velatus, Cycadopites sp., Caytonipollenites, Lnaperturoopollenites sp., Podocarpidites sp., Pinuspollenites sp., Tricolpopollenites sp.


Age 

According to the abundant fossils, the age of Taoqihe Formation belongs to Albian.

Age Span: 

    Beginning stage: 
Albian

    Fraction up in beginning stage: 
0.5

    Beginning date (Ma): 
106.85

    Ending stage: 
Albian

    Fraction up in the ending stage: 
1.0

    Ending date (Ma):  
100.50

Depositional setting


Depositional pattern:  


Additional Information


Compiler:  

Wan Xiaoqiao

Enhanced with Igor N. Kosenko, Jingeng Sha and Boris N. Shurygin (2021). Upper Mesozoic stratigraphy of Sikhote-Alin (Russian Far East) and northeastern China: Non-marine and marine correlations. Part 1: Upper Jurassic-Hauterivian AND 2. Barremian-Aptian. Cretaceous Research, 124: articles 104811 (https://doi.org/10.1016/j.cretres.2021.104811) AND 104812 (https://doi.org/10.1016/j.cretres.2021.104812)