Age | Geological Unit | Lithology |
Quaternary | -Alluvium (general) freshwater back swamp meander belt. | -Gravel, sand, clay, silt, |
| -Mangrove and salt water | -Silt, clay and sand |
| -Back Swamps | -Medium fine sand and silt |
| -Active/Abandoned Beach ridges Sombreiro Warri Deltaic plain | -Fine sand, silt and clay |
Miocene | Benin Formation (Coastal plain sand) | -Coarse to medium grain sand with subordinate silt and clay lenses, fluviatile marine |
Eocene | Agbada Formation | -Mixture of sand, clay and silt, fluviatile marine |