


The Four Main Methods of Mining - Nigeria
Mining in Nigeria: Overview of minerals Legit.ng. Apr 17, 2017 The company is developing an open method of mining in the areas located 10 km from Jos. In 1984, essential mixed the tin-mining companies were combined into a single "Nigerian Tin Mining . get priceThere are four main mining methods: underground, open surface (pit), placer, and in-situ mining. Underground mines are more expensive and are often used to reach deeper deposits. Surface mines are typically used for more shallow …
