Hydraulic mining


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a system of mining in which the force of a jet of water is used to wash down a bank of gold-bearing gravel or earth.

See also: Hydraulic

References in periodicals archive ?
Additionally, restoring the Yuba River to mitigate the damage done by decades of irresponsible hydraulic mining is one of my key priorities, said Garamendi.
The tailings deposit will be mined utilizing a hydraulic mining method.
More than 62 tons have been recovered to date from short ephemeral drainages mostly within a 25 km2 area, primarily through hydraulic mining during the period 1900-1930.
In early November, Caterpillar unveiled two new products--6020B Hydraulic Mining Shovel and 994K Wheel Loader to trade press and customers during its Loading & Hauling Mining Focus Session at its Tinaja Hills proving grounds, located south of Tucson, Ariz.
The Cat 6020B Hydraulic Mining Shovel is a brand new model in the line of Cat hydraulic mining shovels.
For example, researchers from Jilin University, China, have demonstrated the suitability of the borehole hydraulic mining method for extraction of deep-deposited oil shale [3, 4].
These include the Dolaucothi Gold Mines near Pumpsaint where the Romans used hydraulic mining (use of vast amounts of soil stripping water to reveal bedrock), the Carmarthenshire Amphitheatre, Y Pigwn marching camp near Trecastle and Caratacus' former lair at Garn Goch.
Hydraulic mining methods mobilize enormous volumes of sediment and native sediment-bound mercury.
In the Malakoff Diggings, once the scene of intensive hydraulic mining that ripped the hillsides for their hidden gold, Lavenson found the sharp gouges softening as rain smoothed the hard edges and plants gradually reclaimed the earth.
15 (that event was still receding when the photo was taken) or simply a result of licensed hydraulic mining going on upstream at the time of photo acquisition.
The products divested by Terex in the deal include hydraulic mining excavators, electric drive mining trucks, track and rotary blasthole drills, and the highwall miner, as well as the related parts and aftermarket service businesses, including the company-owned distribution locations.