Kadabeng Fm
Type Locality and Naming
The type section is located at Kadabeng 72 km to the southeast of Deqin County Town, Yunnan Province. It was named by the 1st Regional Geological Survey Party of Yunna Province in 1985, and was cited publicly by the Yunnan Bureau of Geology and Mineral Resources (1990).
Lithology and Thickness
Limestone and Volcanics. Composed of light-grey micrite limestone and grey-green basalt, intercalated with sandy slate and marble. Its basal part consisting of light-grey and grey medium- and thick-bedded detrital limestones is different from the light-grey massive silty micrite occurring on the top of the underlying Upper Carboniferous Series. Thickness of 2413 m
Relationships and Distribution
Lower contact
Uncertain contact with the underlying strata. The Lexicon column 59 suggests an unconformity onto Upper Carboniferous silty micrite of Xianggu Fm (not in Carb. Lexicon set).
Upper contact
Conformable(?) contact with the overlying Laluoba Fm. The top part of the formation is marked by the occurrence of yellow-green and grey-green altered basic volcanic rocks at the base of the overlying strata known as the Laluoba Fm.
Regional extent
Distributed in the Jiangda area of Tibet, Daqin-Weixi area of Yunnan Province, with a thickness of 1218-2913 m.
GeoJSON
Fossils
Fusulinida represented by Nankinella orbicularia, Misellina sp., etc., whose stratigraphic horizon is corresponding to the Qixia Fm
Age
Depositional setting
It is interpreted as deep-water basic lava and flysch deposits.
Additional Information