Madiela North Gabon Subbasin West Fm
Period:
Cretaceous
Age Interval:
Province:
Gabon General lithology
Type Locality and Naming
Column: North Gabon Subbasin West
Lithology and Thickness
Madiela Fm:
LITHOLOGY = Total Madiela Fm ranges from 90 to 1,500 m in thickness. Deformation of the underlying Ezanga Formation evaporites during the deposition of the shelf-carbonate Madiela Formation resulted in its wide range in thickness.
CALIBRATION = 57% up in the Albian.
REFERENCE = Figure 10, U.S. Geological Survey "Geology and Total Petroleum Systems of the West-Central Coastal Province (7203), West Africa" Bulleton 2207-B
LITHOLOGY = Total Madiela Fm ranges from 90 to 1,500 m in thickness. Deformation of the underlying Ezanga Formation evaporites during the deposition of the shelf-carbonate Madiela Formation resulted in its wide range in thickness.
CALIBRATION = 57% up in the Albian.
REFERENCE = Figure 10, U.S. Geological Survey "Geology and Total Petroleum Systems of the West-Central Coastal Province (7203), West Africa" Bulleton 2207-B
Lithology Pattern:
Continental marl
Relationships and Distribution
Lower contact
Upper contact
Regional extent
GeoJSON
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Fossils
Age
Age Span:
Beginning stage:
Albian
Fraction up in beginning stage:
0
Beginning date (Ma):
113.20
Ending stage:
Cenomanian
Fraction up in the ending stage:
0.32
Ending date (Ma):
98.37
Depositional setting
Depositional pattern:
Additional Information
long: 7.5 lat: 0
Compiler: