coal industry

November 1, 2015

How Coal is extracted?

Depending on the depth of the layers, or seams, coal is extracted in open pit or underground mines. In the underground extraction, the vertical wells are drilled and a system of elevators and connections to the surface are installed. The well…

November 1, 2015

How Coal was formed?

Formation of coal has been one of the most interesting stories we were told by our teachers during our primary schools. About 300 million years ago, the earth had dense forests in low-lying wetland areas. Due to natural processes such…