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Hailang Formation
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Hailang Fm base reconstruction

Hailang Fm

Period: 
Cretaceous

Age Interval: 
Late Cretaceous, (21,22) K2h


Province: 
Heilongjiang

Type Locality and Naming

E. Heilongjiang – Wandashan and Sanjiang. The Hailang Formation was named by Yang Yaoyu (1975) in the Hailang Town of Pingan County. The type locality is the Sandaoliangzi- Hadawan section in the Pingan County, Heilongjiang (129°10′, 44°19′). The Bureau of Geology and Mineral Resources of Heilongjiang Province (1997) referred the Qixinghe, Yanwo and Sipingshan formations into the Hailang Formation.


Lithology and Thickness

The Hailang Formation is a group of multi-colored sandstone and mudstone. Lower part consists of purple conglomerate, gravel-bearing sandstone, feldspar sandstone, intercalated with siltstone and mudstone. Upper part is multi-colored feldspar sandstone, siltstone and mudstone, intercalated with gravel-bearing sandstone. It is 1011.78 m at the type section, and generally over 1000 m in the region.


Lithology Pattern: 
Sandstone


Relationships and Distribution

Lower contact

The Hailang Formation overlies the Houshigou Fm disconformably.

Upper contact

Regional extent

It is distributed in the Mudanjiang, Muling, and Sanjiang areas.


GeoJSON

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Fossils

None listed


Age 


Age Span: 

    Beginning stage: 
Coniacian

    Fraction up in beginning stage: 
0.5

    Beginning date (Ma): 
87.55

    Ending stage: 
Campanian

    Fraction up in the ending stage: 
0.3

    Ending date (Ma):  
80.21

Depositional setting


Depositional pattern:  


Additional Information


Compiler:  

Wan Xiaoqiao