open-pit mining — [ō′pən pit΄] n. a method of mining, usually for metallic ores, in which the waste and ore are completely removed from the sides and bottom of a pit which gradually becomes an enormous canyonlike hole: see also STRIP MINING … English World dictionary
Open-pit mining — El Chino, located near Silver City, New Mexico, is an open pit copper mine … Wikipedia
open pit mine — noun a mining operation in which blocks of ore carrying earth are dug from the surface, creating a large quarry like pit. –open pit mining, noun …
Open-pit coal mining in the United Kingdom — The United Kingdom produces about ten million tons of coal a year [1] from open pit mines. The majority comes from Scotland [2], with the largest operator there being the Scottish Coal subsidiary of Scottish Resources Group [3]; they are rather… … Wikipedia
open-pit — /oh peuhn pit /, adj. Mining. noting or pertaining to a type of surface mining in which massive, usually metallic mineral deposits are removed by cutting benches in the walls of a broad, deep funnel shaped excavation. [1910 15] * * * … Universalium
Hull-Rust-Mahoning Open Pit Iron Mine — Infobox nrhp | name =Hull Rust Mahoning Open Pit Iron Mine nrhp type = nhl caption = Carloads of iron ore being filled at the mine in 1941 location = Hibbing, Minnesota nearest city = lat degrees = 47 lat minutes = 27 lat seconds = 00 lat… … 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
Mining industry of Russia — The mineral industry of Russia is one of the world s leading mineral industries and accounts for a large percentage of the Commonwealth of Independent States production of a range of mineral products, including metals, industrial minerals, and… … Wikipedia
Mining in Afghanistan — It is estimated that forty million years ago the tectonic plates of India Europe, Asia and Africa collided in a massive upheaval. This upheaval created the region of towering mountains that now includes Afghanistan. That process also deposited… … Wikipedia