In coal mining this is the intended basis for roof bolting. Bearing – A surveying term used to designate direction. The bearing of a line is the acute horizontal angle between the meridian and the line. The meridian is an established line of reference. Azimuths are .
After extraction, coal is put on a conveyor belt to a preparation plant at the mining station where the coal is cleaned and processed to remove excess materials. materials that are extracted from the coal at the processing plant. rocks, dirt, ash, and sulfur.