Shilama Fm
Type Locality and Naming
The type section is located at Shilama, Bangda Township, Jintang District, Kangding County, Sichuan. It was named by the No. 2 Regional Geological Survey Party of Sichuan Bureau of Geology in 1976.
Lithology and Thickness
Limestone. Gray and light-gray moderately thick- to thick-bedded clayey bioclastic limestone, crystalline limestone and brecciated clastic limestone, occasionally intercalated with black shale. Total thickness 124.2 m.
Relationships and Distribution
Lower contact
Conformably over the Luanshijiao Fm
Upper contact
Disconformable contact under the Lower Permian Dongdahe Fm
Regional extent
Mainly distributed in the Jintang arcuate structure and areas such as Dayutongliangzi, Kongyu, Yeniugou and Changshiwo of Kangding County on the western side of the Sichuan-Yunnan uplift.
GeoJSON
Fossils
Dominated by Fusulinids Pseudofusulina sp., Triticites parvulus, T. kuanshanensis, Hemifusulina ordinata var. cheni, and corals, crinoid stems, etc.
Age
Depositional setting
It is interpreted as littoral-neritic deposits
Additional Information