Sanlichong Fm
Period:
Permian
Age Interval:
(70)
Province:
Shaanxi
Type Locality and Naming
Sanlichong in Shaanxi Province. Named by Wang Guolian and Sun Xiufang, 1973, Acta Geologica Sinica, 47(2):137-178.
Lithology and Thickness
Implied by the Shimenya Fm to be similar grey thick-bedded and massive bio-micrites with corals of a carbonate platform.
Lithology Pattern:
Reef limestone
Relationships and Distribution
Lower contact
Conformable on underlying YangshanShaanxi Fm (Carboniferous)
Upper contact
Conformable contact with the bioclastic limestone of the overlying Shimenya Fm, with no distinct lithostratigraphic salient features being able to be used to differentiate them from one another.
Regional extent
GeoJSON
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Fossils
Coral, fusulinids
Age
Earliest Permian
Age Span:
Beginning stage:
Asselian
Fraction up in beginning stage:
0.5
Beginning date (Ma):
296.21
Ending stage:
Sakmarian
Fraction up in the ending stage:
1.0
Ending date (Ma):
290.51
Depositional setting
Depositional pattern:
Additional Information
Compiler:
Entry from Zhang Shouxin "Geological Formation Names of China (1866-2000", Springer; plus implied from Shimenya Fm entry.