Mining is the extraction of valuable geological materials from the Earth and other astronomical objects. Mining is required to obtain most materials that cannot be grown through agricultural processes, or feasibly created artificially in a laboratory or factory. Ores recovered by mining include metals, coal, oil shale, gemstones, limestone, chalk, dimension stone, rock salt, potash, gravel, and clay. The ore must be a rock or mineral that contains valuable constituent, can be extracted or mined and sold for profit. Mining in a wider sense includes extraction of any non-renewable resource such as petroleum, natural gas, or even water.
Underground hard-rock mining refers to various underground mining techniques used to excavate "hard" minerals, usually those containing metals, such as ore containing gold, silver, iron, copper, zinc, nickel, tin, and lead. It also involves the same techniques used to excavate ores of gems, such as diamonds and rubies. Soft-rock mining refers to the excavation of softer minerals, such as salt, coal, and oil sands.
Open-pit mining, also known as open-cast or open-cut mining and in larger contexts mega-mining, is a surface mining technique of extracting rock or minerals from the earth from an open-air pit, sometimes known as a borrow.
An adit or stulm is a horizontal or nearly horizontal passage to an underground mine. Miners can use adits for access, drainage, ventilation, and extracting minerals at the lowest convenient level. Adits are also used to explore for mineral veins.
Denniston is a small settlement, 15 kilometres east of Westport, on the West Coast of the South Island of New Zealand. It is situated on the Denniston Plateau, 600 metres (2,000 ft) above sea level in the Papahaua Ranges.
Drift mining is either the mining of an ore deposit by underground methods, or the working of coal seams accessed by adits driven into the surface outcrop of the coal bed. A drift mine is an underground mine in which the entry or access is above water level and generally on the slope of a hill, driven horizontally into the ore seam. Random House dictionary says the origin of the term "drift mine" is an Americanism, circa 1885–1890.
Shaft mining or shaft sinking is the action of excavating a mine shaft from the top down, where there is initially no access to the bottom. Shallow shafts, typically sunk for civil engineering projects, differ greatly in execution method from deep shafts, typically sunk for mining projects.
Big Pit National Coal Museum is an industrial heritage museum in Blaenavon, Torfaen, Wales. A working coal mine from 1880 to 1980, it was opened to the public in 1983 as a charitable trust called the Big Pit (Blaenavon) Trust. By 1 February 2001 Big Pit Coal Museum was incorporated into the National Museums and Galleries of Wales as the National Mining Museum of Wales. The site is dedicated to operational preservation of the Welsh heritage of coal mining, which took place during the Industrial Revolution.
Caphouse Colliery, originally known as Overton Colliery, was a coal mine in Overton, near Wakefield, West Yorkshire, England. It was situated on the Denby Grange estate owned by the Lister Kaye family, and was worked from the 18th century until 1985. It reopened as the Yorkshire Mining Museum in 1988, and is now the National Coal Mining Museum for England.
The Upper Hirst is a coal seam in central Scotland that was mined on a large scale in the 1950s through to 2002, mainly to supply Kincardine Power Station, and later, Longannet Power Station, in Fife.
Mine exploration is a hobby in which people visit abandoned mines, quarries, and sometimes operational mines. Enthusiasts usually engage in such activities for the purpose of exploration and documentation, sometimes through the use of surveying and photography. In this respect, mine exploration might be considered a type of amateur industrial archaeology. In many ways, however, it is closer to caving, with many participants actively interested in exploring both mines and caves. Mine exploration typically requires equipment such as helmets, head lamps, Wellington boots, and climbing gear.
The Donnington Wood Canal was a 5.5-mile (8.9 km) private canal in East Shropshire, England, which ran from coal pits owned by Earl Gower at Donnington Wood to Pave Lane on the Wolverhampton to Newport Turnpike Road. It was completed in about 1767 and abandoned in 1904. The canal was part of a larger network of tub-boat canals, which were used for the transport of raw materials, particularly coal, limestone and ironstone, from the locations where they were mined to furnaces where the iron ore was processed. The canal was connected to the Wombridge Canal and the Shropshire Canal.
The Conns Creek Branch was a 2.7 kilometre branch line railway in the West Coast region of New Zealand's South Island. It diverged from the Seddonville Branch at Waimangaroa and followed the southern bank of the Waimangaroa River to the line's terminus at Conns Creek at the foot of the Denniston Incline. The line operated from 1877 until 1967 and existed for the sole purpose of conveying coal from mines to the port of Westport.
Stoping is the process of extracting the desired ore or other mineral from an underground mine, leaving behind an open space known as a stope. Stoping is used when the country rock is sufficiently strong not to collapse into the stope, although in most cases artificial support is also provided.
A mine railway, sometimes pit railway, is a railway constructed to carry materials and workers in and out of a mine. Materials transported typically include ore, coal and overburden. It is little remembered, but the mix of heavy and bulky materials which had to be hauled into and out of mines gave rise to the first several generations of railways, at first made of wooden rails, but eventually adding protective iron, steam locomotion by fixed engines and the earliest commercial steam locomotives, all in and around the works around mines.
This is a partial glossary of coal mining terminology commonly used in the coalfields of the United Kingdom. Some words were in use throughout the coalfields, some are historic and some are local to the different British coalfields.
The Coalbrook mining disaster is the worst mining accident in the history of South Africa. The disaster occurred in the Coalbrook coal mine of Clydesdale Colliery on 21 January 1960 at around 19:00 when approximately 900 pillars caved in, almost 180 metres (590 ft) underground. The mine is situated in the Northern Free State, 21 kilometres (13 mi) south west of Vereeniging. About 1,000 miners were in the mine at the time and 437 died after being trapped, while the rest escaped through an incline shaft. The miners were suffocated by methane gas and crushed to death by rockfall.
The Koranui Incline was an inclined tramway on the West Coast of the South Island of New Zealand that, for four years from late 1882 to the end of 1886, brought coal from a mine high on Mt Frederick down to a railway line near sea level.
The Charming Creek Tramway was a 9 kilometres (5.6 mi) long private bush tramway at Ngakawau in Buller District on the West Coast in New Zealand. It was used from 1903 or 1905 to 1958.
