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fine tailings

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  • 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

  • Uranium tailings — are a waste material of uranium mining. In mining, the raw uranium ore is brought to the surface and crushed into a fine sand. The valuable uranium bearing minerals are then mechanically removed, and the remaining radioactive sand, called uranium …   Wikipedia

  • Chat (mining) — Chat is a term for fragments of siliceous rock, limestone, and dolomite waste rejected in the lead zinc milling operations that accompanied lead zinc mining in the first half of the 20th century. Historic lead and zinc mining in the Midwestern… …   Wikipedia

  • Tailing pond — Tailing ponds are areas of refused mining tailings where the refuse material is ponded to allow the settlement of solid particles from the water it is carried in. The ponded water is of some benefit as it minimizes fine tailings from being… …   Wikipedia

  • World's largest dams — ▪ Table World s largest dams By height name type1 date of completion river country height (m)   Nurek E 1980 Vakhsh Tajikistan 300   Grande Dixence G 1961 Dixence Switzerland 285   Inguri A 1980 Inguri Georgia 272   Vaiont2 A 1961 Vaiont Italy… …   Universalium

  • Business and Industry Review — ▪ 1999 Introduction Overview        Annual Average Rates of Growth of Manufacturing Output, 1980 97, Table Pattern of Output, 1994 97, Table Index Numbers of Production, Employment, and Productivity in Manufacturing Industries, Table (For Annual… …   Universalium

  • Oil sands — The Athabasca oil sands in Alberta, Canada, are a very large source of bitumen, which can be upgraded to synthetic crude oil. Bituminous sands, colloquially known as oil sands or tar sands, are a type of unconventional petroleum deposit. The… …   Wikipedia

  • Mining in Ghana — Ghana s economy depends largely on exports of cocoa and gold. Other mineral commodities produced in the country were aluminum, bauxite, diamond, manganese, natural gas, petroleum, salt, and silver.Economic impactThe contribution of Ghana’s mining …   Wikipedia

  • Mining industry of Ghana — accounts for 5% of the country s GDP and minerals make up 37% of total exports, of which gold contributes over 90% of the total mineral exports. Thus, the main focus of Ghana s mining and minerals development industry remains focused on gold.… …   Wikipedia

  • Coal preparation plant — A coal washer in Eastern Kentucky A coal preparation plant (CPP) is a facility that washes coal of soil and rock, preparing it for transport to market. A CPP may also be called a coal handling and preparation plant (CHPP), prep plant, tipple, or… …   Wikipedia

  • environment — environmental, adj. environmentally, adv. /en vuy reuhn meuhnt, vuy euhrn /, n. 1. the aggregate of surrounding things, conditions, or influences; surroundings; milieu. 2. Ecol. the air, water, minerals, organisms, and all other external factors… …   Universalium

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