Tiemenguan Gr
Type Locality and Naming
The type section is located at Tiemenguan (at the 259 km road sign of the Nanjiang Highway) of the eastern suburb of Korla City, Xinjiang. It was named by Liao Zhuoting et al. in 1990.
Lithology and Thickness
Clastics and Limestone. A suite of regionally strongly metamorphosed Ca-rich clayey fine-grained clastic rocks and carbonate rocks. Divided into two members at Tiemenguan. Lower member: dominated by granitic-gneiss, intercalated with minor schist, forming the steep Tiemenguan ridge. Upper member: dominated by a suite of amphibole-schist and siliceous marble in interbedded occurrence. Exposed thickness 3250.4 m
Relationships and Distribution
Lower contact
Unknown: Bottom unseen
Upper contact
Unconformable contact with the overlying Neogene Putaogou Fm
Regional extent
Distributed from Borohoro Mt. eastward to southeastern Korla and northeastern Yuli County
GeoJSON
Fossils
Brachiopods Gigantoproductus sp., Pugilis sp., Composita sp., Eomarginifera sp., Dielasma sp. and Athyris sp.; Corals Siphonophyllia sp., etc. as well as bivalve fragments.
Age
Depositional setting
Additional Information