A single road now links them, and there is 200 km southwest of Chongqing, and 70 km southeast ofYibin, electricity, but water supplies are rather patchy. There are a few both of those cities standing beside the mighty Chang Jiang shops: a daily bus to the county town, and two hotels ...
The mine supplies coal to the power plant in the region of La Robla, and the mine waste employed in this study is used in a cement factory in the same region. The geological materials from La Robla vary greatly. They are separated by easily identifiable irregularities and contain a variety...
Underground mining has large impacts on underground water supplies and water quality, but generally has less visual surface impacts such as leaving waste and tailings on the surface and subsidence problems. In response to the concern about these environmental issues, many strategies have been developed...