Jiangjunmiao Fm
(5), Middle Permian (Guadalupian Epoch?)
Type Locality and Naming
The type section is located at Shengligou to the north of the Qitai County Town, Xinjiang. It was named by the Compiling Group on the Regional Stratigraphic Chart of the Xinjiang Uygur Autonomous Region in 1981.
Lithology and Thickness
Conglomerate. Composed of dark-grey and brown-red thick-bedded conglomerates, intercalated with siltstone, sandy siltstone and pure siltstone. Thickness of 15 m at type section; but reaches 1100 m on sides of basin.
Relationships and Distribution
Lower contact
Unconformable contact with the underlying Liukeshu Fm (or the underlying Shiqiantan Fm) of the upper Carboniferous.
Upper contact
Conformable contact with the overlying Pingdiquan Fm.
Regional extent
Distributed on the northeastern margin of the Junggarya. It is the thinnest at the Shengligou, and is thickening towards both the eastern and western sides of the basin, and with the greatest thickness being of 1171-1271 m.
GeoJSON
Fossils
Age
Depositional setting
It is interpreted as river-facies deposits.
Additional Information