Abuja Abuja Abuja () is the capital city of Nigeria located in the centre of the country within the Federal Capital Territory (FCT). It is a planned city and was built mainly in the 1980s, replacing the country's most populous city of Lagos as the capital on 12 December 1991. Abuja's geography is defined by Aso Rock, a monolith left by water erosion. The Presidential Complex, National Assembly, Supreme Court and much of the city extend to the south of the rock. Zuma Rock, a monolith, lies just north of the city on the expressway to Kaduna. At the 2006 census,
Geology of the Central African Republic Geology of the Central African Republic The geology of Central African Republic (CAR) is part of the broader geology of Africa. CAR occupies a swath of ancient rocks, dating back billions of years that record significant aspects of Earth history and yield minerals vital to the country’s small economy. Southern CAR is part of the Congo Craton, a stable landmass dating to the Archean that was once fused with the Sao Francisco Craton until the opening of the South Atlantic Ocean. Some of the oldest rocks in CAR belong to the 3.4 billion year old Bomu Complex which includes migmatite