Lingxiqiao Fm
Type Locality and Naming
It was named by Mu Enzhi et al. (1983). The type section is near Lingxiqiao, north of Shuanghezhen, Changning County in southwest Sichuan Province.
Synonym: (灵溪桥组)
Lithology and Thickness
Lower and Middle parts of the formation, 338 m thick, consist of gray laminated calcareous mudstone. The Upper part, 106 m thick, is composed of dark gray calcareous mudstone intercalated with thin-bedded shelly limestone and limestone lenses.
Relationships and Distribution
Lower contact
The formation is in a continuous sedimentation relation with the underlying Longmaxi Fm
Upper contact
The formation is in a continuous sedimentation relation with the overlying Magongtan Fm
Regional extent
The formation is confined to southwest Sichuan.
GeoJSON
Fossils
It yields dominantly brachiopods and trilobites, besides, the graptolite Pristiograptus cf. concinus, Oktavites sp., Rastrites cf. distans can be found at the lowest part.
Age
Depositional setting
Additional Information