Kelimoli Fm
Type Locality and Naming
The type section is at Kelimoli south of Lashizhong Temple on Gangder Hill in Wuhai City, Inner Mongolia. The Kelimoli Fm is derived from the Kelimoli Limestone proposed by Guan Shicong and Che Shuzheng in 1955.
Synonym:
Lithology and Thickness
It is dominated by thin-bedded limestone, nodular limestone and black shale, with an increasing argillaceous sediment upward. In the type area, the Kelimoli Fm is 202 m thick.
Relationships and Distribution
Lower contact
This formation rests conformably on the thick-bedded limestone of the Zhuozishan Fm
Upper contact
It is disconformably overlain by the calcirudite at the bottom of the Wulalik Fm
Regional extent
The Kelimoli Fm is dominantly exposed in Gangder Hill, Inner Mongolia to Hengshanbao, Lingwu County, Ningxia. Its lithology and thickness vary considerably along the length of its outcrop. In Dongshan, Laoshidan, the Kelimoli Fm recorded a thickness of 202 m, and is composed of nodular limestone and medium- to thin-bedded limestone intercalated with shale in the lower part, interbedded nodular limestone and shale in the middle and intercalation of shale and carbonaceous shale in the upper. At Hatugou, 8 km northwest of Dongshan, it is characterized by limestone intercalated with shale in the lower part and black carbonaceous shale in the upper, with an increasing argillaceous sediment and a thickness below 80 m. From the drilling data, at Renjiazhuang in Lingwu, Ningxia and Hanggaijing in Otog Qianqi, Inner Mongolia, the Kelimoli Fm recorded a thickness of 85 m and 140 m respectively, and consists of mudstone, argillaceous limestone and calcareous mudstone, representing a very low-energy offshore sedimentation. Eastward to Tianchi, Ningxia, the Kelimoli Fm changes into 102 m of limestone and dolomitic limestone.
GeoJSON
Fossils
Age
Depositional setting
Additional Information