underground exploration

См. также в других словарях:

• Underground coal gasification — (UCG) is an in situ gasification process carried out in non mined coal seams using injection and production wells drilled from the surface, which enables the coal to be converted into product gas. The process is flexible in operation and is… …   Wikipedia

• Exploration of Mars — Viking Lander 2 site May 1979 Viking Lander 1 site February 1978 The exploration of Mars has been an importan …   Wikipedia

• Underground City, Montreal — Montreal s Underground City (officially RÉSO or La Ville Souterraine in French) is the set of interconnected complexes (both above and below ground) in and around Downtown Montreal, Quebec, Canada. It is also known as the indoor city (ville… …   Wikipedia

• Underground (documentary film) — Infobox Film name = Underground |thumb image size = 200px caption = imdb id = 0075367 writer = starring = Bill Ayers Kathy Boudin Emile de Antonio Bernadine Dohrn Jeff Jones Mary Lampson Haskell Wexler Kathy Wilkerson directors = Emile de Antonio …   Wikipedia

• Orex Exploration — Inc. Type Public (TSX V: OX) Industry Mining Founded 1987 …   Wikipedia

• Mine exploration — This article is about visiting mines. For searching for minerals, see Mineral exploration. Mine exploration is a hobby in which people visit abandoned mines, quarries, and sometimes operational mines. Enthusiasts usually engage in such activities …   Wikipedia

• Urban exploration — Draining redirects here. For other uses, see Drain (disambiguation). Urban explorers redirects here. For 2006 documentary film, see Urban Explorers (film). For 2011 horror thriller, see Urban Explorer. Exploring the underground in Hobart,… …   Wikipedia

• Mineral exploration — is the process of finding ore (commercially viable concentrations of minerals) to mine. Mineral exploration is a much more intensive, organized and professional form of mineral prospecting and, though it frequently uses the services of… …   Wikipedia

• History of the petroleum industry in Canada (frontier exploration and development) — discoveries took place near population centres or along lines of penetration into the frontier. The first oil play, for example, was in southern Ontario. The first western natural gas discovery occurred on a Canadian Pacific Railway right of way …   Wikipedia

• 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

• Earth exploration — Introduction   the investigation of the surface of the Earth and of its interior.  By the beginning of the 20th century most of the Earth s surface had been explored, at least superficially, except for the Arctic and Antarctic regions. Today the… …   Universalium