Zhageyong Fm
(58), Capitanian Stage (late Guadalupian Epoch; late-Middle Permian
Type Locality and Naming
The type section is located in the area of Gamaodengzou to the north of the Mohai region and to the south of the Ziqu region, Zaduo County, Qinghai Province. It was named by the 2nd Regional Geological Reconnaissance Party in 1982-1983.
Lithology and Thickness
Volcanics and Clastics. Composed of grey-purple basalt, volcanic breccia, coarse- and medium-grained lithoclastic sandstone, feldspar-rich sandstone, siltstone and bio-limestone, with a thickness of over 1436 m.
Relationships and Distribution
Lower contact
Conformable contact with the underlying Gadikao Fm
Upper contact
Unconformable contact with the Wuli Gr (Nayixiong Fm)
Regional extent
Distributed in the Jiezha area of the Ziqu region, Zaduo County, Qinghai Province.
GeoJSON
Fossils
Yields Fusulinid fossils such as Yabeina, Neoschwagerina, Verbeekina, Yangchienia, Schwagerina and Nankinella; Ammonoids such as Altudoceras, Agathiceras; and Brachiopods such as Urushtenia, Spiriferellina, Neoplicatifera, Waagenochocha, Acosarina, Orthotichia.
Age
Depositional setting
Additional Information