Akata Gr
Period:
Paleogene, Neogene, Quaternary
Age Interval:
Province:
Western Africa: Niger Delta
Type Locality and Naming
Synonym:
Lithology and Thickness
Basinal & slope, marine shale facies with sporadic lowstand turbidite sands often overpressured & mobile frequently occurs as domes and diapirs. Compressively thrusted at the top of the delta in the deep offshore.
[Figure: Stratigraphic data sheet (west and east halves combined) of the Niger Delta.]
Lithology Pattern:
Clayey limestone
Relationships and Distribution
Lower contact
Imo shale Fm (conformable)
Upper contact
This is the top formation. (Because this is one of the transgressive depositions in Niger delta basin.)
Regional extent
Niger Delta basin
GeoJSON
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Fossils
Age
Age Span:
Beginning stage:
Ypresian
Fraction up in beginning stage:
0
Beginning date (Ma):
56.00
Ending stage:
Holocene
Fraction up in the ending stage:
1
Ending date (Ma):
0.00
Depositional setting
Depositional pattern:
Additional Information
Compiler:
Rebecca Bobick (and Wen Du), modified from Reijers, T.J.A., "stratigraphy and sedimentology of the Niger Delta", Geologos, 2011, 17(3): 133-162