Home Multi-Country Search About Admin Login


Information provided by geoscience team at Ahmadu Bello University, Zaria, Nigeria --see About

Welcome to the Northwest Africa Lexicon of Stratigraphic Units!
Please enter a formation name or group to retrieve more information.

Search by
Select Region(s) to search
Hold Ctrl (Windows/Linux) or Command (Mac) to select multiple
🌎
Quaternary Superficial Fm
🌎
Tarfaya Fm
🌎
Izic Fm
🌎
Tah Fm
🌎
SenegalBasin Miocene Fm
🌎
Laayoune Fm
🌎
Salmat Fm
🌎
SenegalBasin Paleogene Fm
🌎
Continental Intercalaire Fm
Oualata Supergroup Fm
🌎
SenegalBasin LateCret Fm
🌎
Lebtaina Fm
🌎
SenegalBasin Turonian Fm
🌎
Aguidir Fm
🌎
SenegalBasin Mid-Cret Fm
🌎
Tan Tan Fm
🌎
SenegalBasin Neocomian Fm
🌎
Puerto Cansado Fm
🌎
Tarfaya Mid-Jurassic Platform Fm
🌎
Tarfaya Early-Jurassic Marl Fm
🌎
SenegalBasin Jurassic Platform Fm
🌎
SenegalBasin Salt Fm
🌎
Tarfaya Salt Fm
🌎
SenegalBasin Rift-basin Fm
🌎
Tarfaya Rift-basin Fm
🌎
Telig Gr
🌎
Hassi Aouleouel Fm
🌎
Ain El Barka Fm
🌎
Kerb Es Sefiat Fm
🌎
El Guettara Gr
🌎
Kerb Es Slouguia Fm
🌎
Kerb En Naga Fm
🌎
Mecheri Fm
🌎
Oued Ghazal Fm
🌎
Oued Tsabia Fm
🌎
Bafata Shale Fm
🌎
Bou Bernous Fm
🌎
In Dagouber Gr
🌎
Oued Talha Gr
🌎
Tenemouj Gr
🌎
Cusselinta Sandstone Fm
🌎
Djebilet Gr
🌎
Upper Fedj Mlehas Fm
🌎
Buba Shale Fm
🌎
Lower Fedj Mlehas Fm
🌎
Oued Chig Gr
🌎
Sebkha Mabbes Fm
🌎
Toba el Hamar Gr
Dahr Super Gr
🌎
Tichit Gr
🌎
Erg Cheg Gr
🌎
Gabu Sandstone Fm
🌎
Oujeft Gr
🌎
Caium Sandstone Fm
🌎
Cantari Shale Fm
🌎
Kreb-En-Naga Gr
🌎
Nouatil Gr
🌎
Gara Sayada Fm
🌎
Ghezziane Fm
🌎
Pirada Shale Fm
🌎
Azlaf Gr
🌎
Teniagouri Gr
Adrar Super Gr
🌎
Jbeliat Gr
🌎
Assabet el Hassiane Gr
🌎
Bir Amrane Gr
🌎
Touiderguilt-Tifounke Fm
🌎
Aouleigate Fm
🌎
Eib Nous Fm
🌎
Aouinet Ould Bou Derballa Fm
🌎
Ligdam Fm
🌎
Terrarit Fm
🌎
Tawaz Fm
🌎
Tenoumer Fm
🌎
Terioufet Fm
🌎
Gouamir Fm
🌎
Aguelt el Mahba Fm
🌎
Tod Fm
🌎
Touirist Fm
🌎
En Nesoar Fm
🌎
Khatt Fm
Atar Gr
El Mreiti Gr
🌎
Ksar Torchane Fm
🌎
Foum Chor Fm
🌎
Azougui Fm
🌎
Chegga Fm
🌎
Agueni Fm
Char Gr
Douik Gr
🌎
Glebet et Atores Fm
Hodh Super Gr