* Gold mining the alluvial deposits with gravel pumps (1), maranon river, peru

Alluvial gold mining is South America is mainly done by artisans using the most rudimentary mining system.
In this case,
(1) 6x4-inch water pump powered by another type of recycled engine.
Water jets break up the non-consolidated bar, or in this case river terrace layers of sand-gravel.
(2) 6-inch gravel pump powered by a diesel engine recycled from old car.
Gravel Pump suctions the water-sand-gravel slurry, then trows it in the sluice-box head.
(3) the inclined perforated metal sheet screen used to take out the oversize. This is followed by the carpet lined long sluice-box. The oversize tailing makes the characteristic gravel cones.

Category:

Science & Technology

Tags:

• gold
• alluvial
• mining
• suction
• dredge
• gravity
• recovery
• maranon
• river
• peru