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Explosion. Ignition of a charge of dynamite or other explosive to break up, loosen or dislodge rocks in blasting operations.
Technique of surface mining which consists of digging large, open holes in the ground. Also referred to as open-cut mining. It is commonly used with minerals, such as copper and molybdenun. Source: Infomine, Mining Dictionary.
Use of high pressure water sprayed at an area of rock or gravel to break it up, dislodging ore deposits. In this type of mining, gold bearing gravel, usually in a bank, is excavated by the erosive action of a high-pressure stream of water being directed at the bank through a nozzle. The water and ...
Mining technique where raw materials deposited on the surface are extracted by removing the detritus with running water. The mineral may be found in deep channels, in navigable streams, or in estuaries or creeks and rivers where the sea ebbs and flows. When water under pressure is used, the term ...
Underground mining technique which entails digging into igneous and metamorphic rocks to locate hard minerals, generally those containing metals or gems, using picks, shovels, drills and blasting. Source: Infomine, Mining Dictionary.
Technique used when the ore is close to the surface but has various layers of rock and soil on top of it. After the layers are removed, the mineral bed is blasted, breaking it up to expose the ore. It is generally used to extract coal. Source: Infomine, Mining Dictionary.
Underground mass mining technique which allows the bulk mining of large, lower grade ore, where the mineral ores are extracted by collapsing mineral deposits under their own weight, depending largely on the action of gravity. By removing a thin horizontal layer at the mining level of the ore ...
Underground method of mining flat-bed deposits using mechanical shears to cut minerals away, while hydraulic powered supports hold up the roof of the mine. A full-extraction method for mining large panels of coal. Source: Infomine, Mining Dictionary.
