By American Geological Institute
This new version, containing 28,500 phrases, comprises the technological advancements and environmental rules that experience replaced the minerals so dramatically. it's the end result of a 5-year attempt incorporating not just typical mining-related phrases but additionally phrases in peripheral parts, comparable to the surroundings, marine mining, leaching, pollutants, automation, future health and security. lots of those phrases now have a criminal definition according to legislations or law.
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Extra info for Dictionary of Mining, Mineral, and Related Terms
The amount of this movement depends on several factors, such as the dip, depth of seam, and nature of overlying materials. Lewis afterburst a. A tremor as the ground adjusts itself to the new stress distribution caused by new underground openings. b. In underground mining, a sudden collapse of rock subsequent to a rock burst. aftercooler 59 A device for cooling compressed air between the compressor and the mine shaft. By cooling and dehumidifying the air, and thus reducing its volume, the capacity and efficiency of the pipeline are increased.
Advance wave The air-pressure wave preceding the flame in a coal-dust explosion. The bringing of the dust into suspension is accomplished by such a wave and the violent eddies resulting therefrom. Syn: pioneer wave. Rice, 2 advance working Mine working that is being advanced into the solid, and from which no pillar is being removed. See also: first working advancing Mining from the shaft out toward the boundary. See also: working out. Stoces advancing longwall A longwall mining technique, most commonly found in European coal mines, where the gate roads are advanced while the longwall face is advanced toward the mining limits.
A substance that when added to a mineral pulp promotes flotation in the presence of a collecting agent. Syn: activator b. Reagent used particularly in differential mineral flotation to help cleanse the mineral surface so that a collector may adhere to it and 42 permit or aid its floatability. Frequently used to allow floating minerals that had been previously depressed. Mitchell activation a. In the flotation process of mineral dressing, the process of altering the surface of specific mineral particles in a mineral pulp to promote adherence of certain reagents.