Chaluhe Fm
Type Locality and Naming
The type section is the interval from 32.0 m to 288.5 m in the well Wancan 1 at Wancan Commune, Yongji County, Jilin Province. It was named by Liu Dian-Jun et al. in 1992.
It was previously known as the upper “sand- conglomerate member” of Shuiquliu Fm. It is thick and stable and contains abundant sporopollens and Oxidation oil sand. Thus, a separate formation was established for the oil-gas exploration’s sake.
Lithology and Thickness
It is characterized by the greenish mudstone and varicoloured sandy conglomerates. The thickness varied from 200 m to 500 m, with the maximum thickness of 839.5 m.
Relationships and Distribution
Lower contact
The Chaluhe Fm is in faulted contact with the underlying Wanchang Fm.
Upper contact
The Chaluhe Fm is in unconformable contact with the overlying Quaternary deposits.
GeoJSON
Fossils
Sporopollen assemblages Artemisiaepollenites- Chenopodipollis- Graminidites.
Age
Depositional setting
Alluvial fan.
Additional Information