underground mining workings

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• Underground mining (hard rock) — A three dimensional model of an underground mine with shaft access Underground hard rock mining refers to various underground mining techniques used to excavate hard minerals, mainly those containing metals[1] such as ore containing gold …   Wikipedia

• Mining in New Zealand — began when the indigenous Māori quarried rock such as argillite in times prior to European colonisation.[1] Mining by Europeans began in the latter half of the 19th century. New Zealand has abundant resources of coal, silver, iron ore, limestone… …   Wikipedia

• Mining in the Upper Harz — The headframe of the Emperor William Shaft in Clausthal is one of the oldest surviving winding towers in Germany …   Wikipedia

• 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

• Underground mine ventilation — Schematic of underground mine ventilation Underground mine ventilation provides a flow of air to the underground workings of a mine of sufficient volume to dilute and remove noxious gases (typically NOx, SO2, methane, CO2 and CO). The source of …   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 archaeology in British Isles — Mining Archaeology is a specific field well developed in the British Isles during recent decades. A reason of ongoing interest in this field is the particular bond between regional history and the exploitation of metals. References to mines in… …   Wikipedia

• Mining in Cornwall — first began in the early Bronze Age approximately 2,150 BC and ended with the South Crofty tin mine closing in 1998.HistoryMining in Cornwall has existed from the early Bronze Age around 2,150 B.C. Cornwall is thought to have been visited by… …   Wikipedia

• Mining in Egypt — has had a long history that goes back to predynastic times. Egypt has substantial mineral resources, including 48 million tons of tantalite (fourth largest in the world), 50 million tons of coal, and an estimated 6.7 million ounces of gold in the …   Wikipedia

• Mining in Wales — A Welsh miner at Tower Colliery Mining in Wales provided a significant source of income to the economy of Wales throughout the nineteenth century and early twentieth century. Wales was famous for its coal mining, in the Rhondda Valley, the South… …   Wikipedia

• Mining in Cornwall and Devon — Ruin of Cornish tin mine …   Wikipedia