- ground sluice
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шлюз в почве
English-Russian dictionary of geology. 2011.
ground sluice
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ground sluice — ground sluicer, n. Mining. a trench, cut through a placer or through bedrock, through which a stream is diverted in order to dislodge and wash the gravel. [1865 70] * * * … Universalium
ground sluice — noun : a channel or trough in the ground through which auriferous earth is sluiced for placer mining * * * ground sluicer, n. Mining. a trench, cut through a placer or through bedrock, through which a stream is diverted in order to dislodge and… … Useful english dictionary
sluice — I. noun Etymology: Middle English sluse, alteration of scluse, from Anglo French escluse, from Late Latin exclusa, from Latin, feminine of exclusus, past participle of excludere to exclude Date: 15th century 1. a. an artificial passage for water… … New Collegiate Dictionary
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
Beijing city fortifications — The city wall of Beijing was a fortification built around 1435. It was 23.5 km long. The thickness at ground level was 20m and the top 12m. The wall was 15m high, and it had nine gates. This wall stood for nearly 530 years, but in 1965 it was… … 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
Gold rush tools and methods — A variety of tools and methods were used during the Gold rushes of the 19th century. This article covers the tools and methods used during the California Gold Rush, the Fraser River Gold Rush, the Cariboo Gold Rush, and the Klondike Gold Rush.… … Wikipedia
Sri Lankan Civil War — Sri Lanka is an island off the coast of India Date July 23, 1983 – May 18, 2009 … Wikipedia
Confederate Gulch and Diamond City — Confederate Gulch is a steeply incised valley on the west facing slopes of the Big Belt Mountains. Its small stream drains westward into Canyon Ferry Lake, on the upper Missouri River Valley near present day Townsend, Montana. In 1864 Confederate … Wikipedia
Gold mining — Gold mine redirects here. See Goldmine for other uses of the term. Gold mining consists of the processes and techniques employed in the removal of gold from the ground. There are several techniques by which gold may be extracted from the Earth.… … Wikipedia
Boston, Lincolnshire — infobox UK place country = England official name= Boston latitude= 52.9746 longitude= 0.0214 population = 35,124 shire district= Boston shire county = Lincolnshire region= East Midlands constituency westminster= Boston and Skegness post town=… … Wikipedia
