Qamarniu Fm
Type Locality and Naming
The type section is located in the area of Kaixin Ridge, Zhiduo County, Qinghai Province. It was named by the Qinghai Bureau of Geology and Mineral Resources in 1991. Upper unit of the Wuli Gr.
Synonym: Chamarniu Fm (spelling)
Lithology and Thickness
Conglomerate. Composed of grey thick-bedded sandy conglomerate, red conglomerate and grey-white sandy limestone, with a thickness of over 130 m (no top having been found).
Relationships and Distribution
Lower contact
Conformable contact with the underlying Nayixiong Fm
Upper contact
Unknown, no top having been found.
Regional extent
Distributed in the Kaixin Ridge and Wuli area.
GeoJSON
Fossils
Abundant Brachiopod fossils, including Neowellerella dorshanmensis, Hemiptychina triplicate, Orbiculoidea sp., Perigeyerella costellata, Enteletina sinensis and Araxathyris araxaensis, belonging to the Araxathyris araxaensis-Perigeyerella costellata assemblage, whose features are similar to those of the Enteletina sinensis-Spinomarginifera kuichowensis alpha assemblage of the Changxing Fm (Changhsing Fm) in South China
Age
Depositional setting
It is interpreted as a
Additional Information