Mining Terminology - F
Inspired from the natural resources around us, Rachana Global strives hard to dig up fresh avenues to attain commercial success in the field of mining and exploration. It is one of the best mining companies in India that uses some of the following terminology stated below during its mining activities:
Face – The end of a drift or exposed area of a coal bed from which coal is being extracted is called face.
Face cleat – Face cleat is the principal cleavage plane or joint at right angles to the stratification of the coal seam.
Face conveyor - Any conveyor used parallel to a working face which delivers coal into another conveyor or into a car.
Fault - A slip-surface between two portions of the earth's surface that have moved relative to each other. It is a break in the earth's crust caused by tectonic forces which have moved the rock on one side with respect to the other.
Feasibility study – An economic study where assessment of the legal, environmental, social, cultural, governmental aspects of a proposed project and technical aspects of mining, processing and marketing the product is coupled with financial analysis to determine the viability of the project as to find whether a mineral deposit can be mined profitably.
Feeder - A machine that feeds coal onto a conveyor belt evenly is feeder.
Feldspar - A group of common rock-forming minerals like microcline, orthoclase, plagioclase etc.
Felsic - Term used to describe light-colored rocks containing feldspar, feldspathoids and silica.
Fill - Any material that is put back in place of the extracted ore to provide ground support.
Fire damp - A combustible gas formed in mines by decomposition of coal or other carbonaceous matter, and that consists chiefly of methane.
Fissure - Extensive crack, break, or fracture in the rocks is generally termed as fissure.
Float dust - Fine coal-dust particles carried in suspension by air currents and eventually deposited in return entries. Dust particles of coal that can pass through a No. 200 sieve.
Floor – An underlying surface of an underground excavation is commonly referred as floor.
Flue Gas Desulfurization – A form of chemical and physical process that removes sulphur compounds formed during coal combustion.
Fluidized Bed Combustion – A process having high degree of ability to remove sulphur from coal during combustion is called fluidized bed combustion.
Flotation - A milling process in which valuable mineral particles are induced to become attached to bubbles and float as others sink.
Flowsheet - An illustration showing the sequence of operations, step by step, by which ore is treated in a milling, concentration or smelting process.
Footwall - The rock on the underside of a vein or ore structure.