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Mining industry of Nigeria Wikipedia, the free encyclopedia. Environmental officials with the government of Plateau State believe that 1,100 tin and columbite mines, abandoned after the mining boom of the 1960s, now pose serious health risks to as many as 2 million people living in the area.
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During the mining ban, the Congolese army got increasingly involved in mineral exploi- tation again (Garrett et al. 2009). Our fieldwork documents armed mobilisation among