hydraulic mining


hydraulic mining
placer mining using a pressurized stream of water. Also called hydraulicking /huy draw"li king, -drol"i king/.
[1855-60, Amer.]

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      use of a powerful jet of water to dislodge minerals present in unconsolidated material, including mine tailings, placer deposits (placer deposit), alluvium, laterites (laterite) (soil rich in iron oxides), and saprolites (soil rich in clay). It has also been applied to consolidated materials from sandstones through coal to hard rock. Hydraulic mining encompasses hydraulicking, sluicing, and educing. Hydraulicking is the process of breaking up material and suspending it in a slurry. This is often done by using a large water cannon called a giant or monitor. The process of moving the slurry is called sluicing. Educing is the process of introducing the slurry into an enclosed circuit. In the hydraulic mining of gold the rebounding stream of water and mineral fragments is directed into sluices in which the gold settles behind baffles but the lighter waste matter is washed away. In hydraulic mining of coal the water simply breaks the coal from the seam and washes it to a collecting point. See also placer mining.

William Andrew Hustrulid
 

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Universalium. 2010.

Look at other dictionaries:

  • Hydraulic mining — Hydraulic mining, or hydraulicking, is a form of mining that employs water to dislodge rock material or move sediment. Previously, the use of a large volume of water had been developed by the Romans to remove overburden and then gold bearing… …   Wikipedia

  • Hydraulic mining — Hydraulic Hy*drau lic, a. [F. hydraulique, L. hydraulicus, fr. Gr. ?, ?, a water organ; y dwr water + ? flute, pipe. See {Hydra}.] Of or pertaining to hydraulics, or to fluids in motion; conveying, or acting by, water; as, an hydraulic clock,… …   The Collaborative International Dictionary of English

  • hydraulic mining — noun : mining by the action of powerful jets of water compare placer mining * * * placer mining using a pressurized stream of water. Also called hydraulicking /huy draw li king, drol i king/. [1855 60, Amer.] * * * hydraulic mining noun… …   Useful english dictionary

  • hydraulic mining — Hushing Hush ing, n. (Mining) The process of washing ore, or of uncovering mineral veins, by a heavy discharge of water from a reservoir; flushing; also called {booming} and {hydraulic mining}. [1913 Webster +PJC] …   The Collaborative International Dictionary of English

  • hydraulic mining — A method of mining free gold wherein a large volume of water is thrown with great force through a pipe or hose upon the sides of a hill, the gold bearing earth and gravel thereby being washed down so that the gold can readily be separated.… …   Ballentine's law dictionary

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