1979, and produces from Lower Cretaceous shales and sands overlain by Upper Cretaceous shales. The gas-water contact shows up as a seismic amplitude event. . Culture Traditional dance accessories Traditional Dances Traditional musical instruments Towns and settlements Oveng References Fanso, V.G., Cameroon History for Secondary Schools and Colleges, Vol. 1: From Prehistoric Times to the Nineteenth Century. Hong Kong: Macmillan Education Ltd, 1989. Neba, Aaron, Ph.D., Modern Geography of the Republic of Cameroon, 3rd ed. Bamenda: Neba Publishers, 1999. Ngoh, Victor Julius, History of Cameroon Since 1800. Limbé: Presbook, 1996. Regions of Cameroon States and territories established in 1983 1983 establishments in Africa