Gamba Fm
Period:
Cretaceous
Age Interval:
middle Aptian
Province:
Offshore and Coastal Region (Gabon-Congo-Angola)
Type Locality and Naming
Offshore South Gabon (General)
Synonym:
Lithology and Thickness
Sandstone and claystone
Lithology Pattern:
Clayey sandstone
Relationships and Distribution
Lower contact
Unconformable onto Dentale Fm
Upper contact
Ezanga Fm evaporites
Regional extent
Offshore South Gabon (General)
GeoJSON
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Fossils
Age
middle Aptian
Age Span:
Beginning stage:
Aptian
Fraction up in beginning stage:
0.3
Beginning date (Ma):
118.94
Ending stage:
Aptian
Fraction up in the ending stage:
0.5
Ending date (Ma):
117.30
Depositional setting
Depositional pattern:
Additional Information
Compiler:
Rebecca Bobick (and Jim Ogg), modified from Figure in Brownfield, M.E. and Charpentier, R.R., "Geology and Total Petroleum Systems of the West-Central Coastal Province (7203), West Africa", US Geological Survey Bulletin 2207-B