(DOC) GEOLOGY OF NIGERIA | vincent kalu and stanless pee ...
Nigerian subbituminous coal has a high calorific value (5,0006,000 cal/g or airdried), low ash and low sulfur contents, with good storage characteristics (Afonja, 1979). In the LafiaObi area of Nassarawa State, good quality cooking coal has been discovered which is suitable for use in the iron and steel industry.