Liukeshu Fm
Type Locality and Naming
The type section is located at Shiqiantan (original definition absent) on the south slope of Kalamaili Mt., East Junggar, Xinjiang. It was named by the compiling group for Regional Stratigraphic Scale of Xinjiang in 1981.
Lithology and Thickness
Sandstone and Volcaniclastics. Dominated by clastic rock intercalated with pyroclastic rock, with volcanic rock increasing eastward, gradually replaced by intermediate-acid lava, and increasing in thickness. At Shiqiantan, the formation is composed of moderately thick-bedded grit, pebbly grit, clayey siltstone, intercalated with grit, ferruginous grit and tuff, 241.8 m thick.
Relationships and Distribution
Lower contact
Upper contact
Regional extent
Distributed only at Shiqianshan and Kongqueping on the south slope of Kalamaili Mt. in a NW trend
GeoJSON
Fossils
At Shiqiantan, contains Corals Cystodendropora sp. and Roemeripora sp.; Bivalves Volsellina sp. and Streblochondria sp., as well as brachiopods, crinoid stems, etc.,
Age
Depositional setting
It is interpreted as a product of deposition during a regression of sea level
Additional Information