Download Dictionary of Mining, Mineral, and Related Terms by American Geological Institute PDF

By American Geological Institute

This re-creation, containing 28,500 phrases, contains the technological advancements and environmental rules that experience replaced the minerals so dramatically. it's the fruits of a 5-year attempt incorporating not just normal mining-related phrases but in addition phrases in peripheral parts, comparable to the surroundings, marine mining, leaching, toxins, automation, well-being and protection. a lot of those phrases now have a criminal definition in response to legislations or rules.

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Sample text

AGI active mining area a. The area, on and beneath land, used or disturbed in activity related to the extraction, removal, or recovery of coal from its natural deposits. This term excludes coal preparation plants, areas associated with coal preparation plants, and post-mining areas. SME, 1 b. The area in which active mining takes place relative also to extraction of metal ores, industrial minerals, and other minerals of economic value. active workings All places in a mine that are ventilated and inspected regularly.

Syn: gips plate; glimmer plate; compensator. CF: Berek compensator; gypsum plate. access road A route constructed to enable plant, supplies, and vehicles to reach a mine, quarry, or opencast pit. In remote and isolated regions, the provision of an access road may be very costly. Nelson accidental inclusion See: xenolith; xenocryst. accordion roller conveyor A roller conveyor with a flexible latticed frame that permits variation in length. accretion vein A vein formed by the repeated filling of a channelway and its reopening by the development of fractures in the zone undergoing mineralization.

See also: blackdamp; damp. Fay aftergases Gases produced by mine explosions or mine fires. Fay aftershock An earthquake that follows a larger earthquake or main shock and originates at or near the focus of the larger earthquake. Generally, major earthquakes are followed by many aftershocks, which decrease in frequency and magnitude with time. Such a series of aftershocks may last many days for small earthquakes or many months for large ones. CF: foreshock. AGI aftersliding In mine subsidence, an inward movement from the side, resulting in a pull or draw beyond the edges of the workings.

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