barren gangue

См. также в других словарях:

• Froth flotation — Diagram of a cylindrical froth flotation cell with camera and light used in image analysis of the froth surface. Froth flotation is a process for selectively separating hydrophobic materials from hydrophilic. This is used in several processing… …   Wikipedia

• Tailings — A panorama of Broken Hill, New South Wales, backed by the man made mullock (waste tailings) heaps from the Line of Lode mine (the mullock heaps are the hills that stretch across this image). Tailings, also called mine dumps, slimes, tails, leach… …   Wikipedia

• mining — /muy ning/, n. 1. the act, process, or industry of extracting ores, coal, etc., from mines. 2. the laying of explosive mines. [1250 1300; ME: undermining (walls in an attack); see MINE2, ING1] * * * I Excavation of materials from the Earth s… …   Universalium

• Mining — This article is about the extraction of geological materials from the Earth. For the municipality in Austria, see Mining, Austria. For the siege tactic, see Mining (military). For name of the Chinese emperor, see Daoguang Emperor. Simplified… …   Wikipedia

• Copper mining in Michigan — While it originated thousands of years earlier, copper mining in Michigan became an important industry in the 19th and early 20th centuries. Its rise marked the start of copper mining as a major industry in the United States. Contents 1 Geology 2 …   Wikipedia

• Пустая порода —         (a. barren, rock, waste rock; н. taubes Gesgein, Berge; ф. roche sterile, gangue, mort terrain; и. ganga, roca, ataques, materia esteril) горн. порода, залегающая вблизи или в границах рудного тела (полезного ископаемого), извлекаемая из… …   Геологическая энциклопедия

• Michael Lesher — Carl Michael Lesher (born 1951) is an American Canadian geologist. He is an authority on the geology and origin of nickel copper platinum group element deposits, especially those associated with komatiites, their physical volcanology and… …   Wikipedia