Ameki Formation

{{Infobox rockunit

| name = Ameki Formation

| period = Bartonian

| age = Lutetian-Bartonian

| image =

| imagesize =

| caption =

| type = Geological formation

| prilithology = Shale

| otherlithology = Sandstone, siltstone

| unitof = Bende-Ameki Group

| subunits =

| underlies =

| overlies =

| thickness =

| area =

| map = {{Location map+ | Nigeria

| relief = 1

| width = 250

| float = center

| places =

{{Location map~ | Nigeria

| lat_deg = 6.0

| lon_deg = 7.0

| mark = Orange pog.svg

| marksize = 12

}}

}}

| map_caption =

| location =

| coordinates = {{Coord|6.0|N|7.0|E|display=inline,title}}

| paleocoordinates = {{Coord|1.6|N|1.5|E|display=inline}}

| region =

| country = Nigeria

| extent = Niger Delta Basin

| namedfor = Ameki

| namedby =

| year_ts =

| location_ts =

| coordinates_ts =

| region_ts =

| country_ts =

| thickness_ts =

}}

The Ameki Formation is a Lutetian to Bartonian geological formation located in Nigeria. It belongs to the Bende-Ameki Group, which also consists of two formations namely Nanka Formation, Nsugbe Formation.{{Cite journal |last1=Ogbe |first1=Ovie B. |last2=Osokpor |first2=Jerry |date=2021-01-01 |title=Depositional facies, sequence stratigraphy and reservoir potential of the Eocene Nanka Formation of the Ameki Group in Agu-Awka and Umunya, southeast Nigeria |journal=Heliyon |language=en |volume=7 |issue=1 |pages=e05846 |doi=10.1016/j.heliyon.2020.e05846 |doi-access=free |pmid=33521344 |issn=2405-8440|pmc=7820494 |bibcode=2021Heliy...705846O }}{{Cite journal |last1=Odumodu |first1=Chukwuemeka |last2=Nfor |first2=Bruno |date=January 2012 |title=A New Paratype of an Eocene Nautiloid From the Ameki Formation, Southeastern Nigeria: Implications for Age and Paleoenvironmental Interpretation |url=https://www.academia.edu/8906860 |journal=Stratigraphy and Sedimentology of Oil-Gas Basins}}