Gaokanba Fm
Period:
Cretaceous
Age Interval:
Late Cretaceous, (32b)
Province:
Sichuan
Type Locality and Naming
Sichuan Basin – south. Gaokanba in Sichuan Province; named by Sichuan Air Geological Survey Team, 1980, Explanatory Text for 1:200 000 Scale Geological Map: Langzhong, Deyang, Santai and Jianyang Sheet
Lithology and Thickness
The Gaokanba Formation (~200 m) is a gray sandstone with well-rounded grains and large-scale cross-bedding.
Lithology Pattern:
Sandstone
Relationships and Distribution
Lower contact
On regional stratigraphic columns, the next older unit is the Sanhe Fm.
Upper contact
Conformably overlain by the Liujia Fm (Paleocene)
Regional extent
GeoJSON
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Fossils
Age
Age Span:
Beginning stage:
Campanian
Fraction up in beginning stage:
0.5
Beginning date (Ma):
77.91
Ending stage:
Maastrichtian
Fraction up in the ending stage:
1.0
Ending date (Ma):
66.04
Depositional setting
Depositional pattern:
Additional Information
Compiler: