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ground sluicing

См. также в других словарях:

  • 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

  • Central Otago Gold Rush — …   Wikipedia

  • Roman Empire — For other senses of the term, see Roman Empire (disambiguation). Imperium Romanum redirects here. For the video game, see Imperium Romanum (video game). Roman Empire Senatus Populusque Romanus (SPQR) The Senate and …   Wikipedia

  • Gold rush — A gold rush is a period of feverish migration of workers into the area of a dramatic discovery of commercial quantities of gold. Eight gold rushes took place throughout the 19th century in Argentina, Australia, Brazil, Canada, Chile, New Zealand …   Wikipedia

  • Trip hammer — A trip hammer (alt. helve hammer) is a massive powered hammer, usually raised by a cam and then released to fall under the force of gravity. Historically, trip hammers were often powered by a water wheel, known to be used in China as long ago as… …   Wikipedia

  • Stamp mill — Section of Quincy Mine unit operations diagram showing Allis Steam Stamp Mill A stamp mill (or stamp battery or stamping mill) is a type of mill machine that crushes material by pounding rather than grinding, either for further processing or for… …   Wikipedia

  • Oro City, Colorado — Oro City, now a ghost town, was an early gold placer mining town in the Mosquito Range of Lake County, Colorado, United States. Oro is the Spanish word for gold. Contents 1 History 2 Notable residents 3 Geography …   Wikipedia

  • Mining methods of the Klondike Gold Rush — See also: Klondike Gold Rush, Mining Contents 1 During the Klondike Gold Rush (1896 1910) 1.1 Methods of bringing out the gold 1.1.1 Underground mining …   Wikipedia

  • Oriental Claims — The Oriental Claim was mined between 1876 1904. Man made cliffs up to 30m high such as seen here are found throughout the Oriental Claims Historic Area The Oriental Claims are a former gold mining operation, or claim, located 2 km south of… …   Wikipedia

  • placer mining — ☆ placer mining [plas′ər ] n. mining of placer deposits by washing, dredging, or other hydraulic methods * * * Oldest method of recovering gold from alluvial deposits. It takes advantage of gold s high density, which causes it to sink more… …   Universalium

  • Wau — Infobox PNG Place type = town name = boto othername =amput province = mor llg = dot x = 93 dot y = 94 caption = A satellite image of Wau and her mines, looking towards Bulolo pop = 5,000 popdate = 2005 est poprank = 26th est = postcode =… …   Wikipedia

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