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ventilation drift

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  • Mines and Collieries Act 1842 — The Mines and Collieries Act 1842 (c. 99), commonly known as the Mines Act of 1842, was an Act of the Parliament of the United Kingdom. It was a response to the working conditions of children revealed in the Children s Employment Commission… …   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

  • tunnels and underground excavations — ▪ engineering Introduction        Great tunnels of the world Great tunnels of the worldhorizontal underground passageway produced by excavation or occasionally by nature s action in dissolving a soluble rock, such as limestone. A vertical opening …   Universalium

  • 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

  • coal mining — Coal was very important in the economic development of Britain. It was used as fuel in the factories built during the Industrial Revolution and continued to be important until the 1980s. The main coalfields are in north east England, the north… …   Universalium

  • Marley Hill — Cuthbert Street and Church Street from the south Marley Hill is a former colliery village about six miles to the south west of Gateshead, near the border between Tyne and Wear and County Durham. It has been part of the Metropolitan Borough of… …   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

  • Adit — Gated entrance of an abandoned adit near Medford, Oregon, USA …   Wikipedia

  • South Yorkshire Coalfield — The South Yorkshire Coalfield is defined by a triangle lying between Barnsley, Doncaster and Sheffield, though a few mines within the coalfield lie outside this area. It is part of the larger Midland coal field which stretches from Nottingham in… …   Wikipedia

  • sea ice — Ice formed from frozen seawater in polar regions. Most sea ice occurs as pack ice, which drifts across the ocean surface; other types of sea ice include fast ice, which is attached to coasts and sometimes the seafloor or between grounded icebergs …   Universalium

  • Fly fishing — in a river Fly fishing is an angling method in which an artificial fly is used to catch fish. The fly is cast using a fly rod, reel, and specialized weighted line. Casting a nearly weightless fly or lure requires casting techniques significantly… …   Wikipedia

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