The Evolution Of Gold Mining | Gold | Real Vision™

The Evolution Of Gold Mining | Gold | Real Vision™

Hard rock miners would sink shafts in order
to extract gold from the coarse rock. Drilling was either done by
hand well through the use of compressed air drills with the help of a little dynamite. Hydraulic drills are the next
evolution. And these helped open up deeper holes in the
Earth’s surface using drill bits which became longer. And thinner the further they went down larger
rocks extracted from the mines were crushed by heavy iron
stamping machines to release the gold from the surrounding rock hydraulic mining used
high pressure jets of water to displace the rock and soil and open
up the gold beneath. High in the hills, water was diverted into
ditches and through heavy iron pipes. As the water channeled down,
gravity increased its pressure, and as that pressure reached around 5,000 pounds per square
inch, it was pushed through a small nozzle and used to blast the
mountains apart. The displaced soil cascaded down the valley
and into the sluices below where it would be separated. This new
mining technique whilst productive, was not without cost however as diverting all that
water caused huge flooding in the valleys below. Devastating farmland. As a solution to this problem in California,
miners turned to dredging, which worked like a vacuum cleaner,
sucking up the material underwater and running it through a sleuth to sift out the gold.

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