Huangben Gr
Type Locality and Naming
The type section is located at Huangben, Yangshan County, Guangdong Province. It was named by District Survey Team of Guangdong Geological Bureau in 1958 and first public cited by Guangdong Geological Bureau in 1964.
Synonym:
Lithology and Thickness
It is mainly composed of brown-red, yellow-brown, yellow-gray fine-grained sandstone, siltstone intercalated with shale. Lower part is yellow-grey, brown-red feldspar quartz siltstone. Middle part is brown-red, brown-red, and thick sandstone. Upper part of the brown-red shale is interbedded with yellow-gray medium-thick and coarse-grained sandstone. The thickness is greater than 438 m.
Relationships and Distribution
Lower contact
The yellowish-brown shale at the bottom is in integrated contact with the thin-bedded limestone of the Daye Gr.
Upper contact
The top is not seen. Next younger regional unit is the Genkou Gr (Hongweikeng Fm).
Regional extent
This group has very little exposure, only seen in the Huangben area of Yangshan, Guangdong Province.
GeoJSON
Fossils
Plant: Todites sp., Pterophyllum sp., Bivalves: Gervillia sp., sea lily: Isocrinus candelabrum.
Age
Depositional setting
It is interpreted as shallow-coastal lacustrine facies sandy muddy clastic deposits.
Additional Information