Even though the precious metal gold only occurs very rarely indeed, it can be found almost everywhere on the planet in the 16 kilometre thick Earth's crust.
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Sep 25, 2017 ... It may surprise you to know that gold was never formed on earth. ... Earthquakes are not the only natural force depositing gold in our crust. ... Understanding the physics helps gold mining companies prospect for new gold...
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Because of earth's molten state following its creation, most of this abundant, yet ... the very high temperatures melted the precious minerals from the rocky crust, ... The extraction of gold from below the surface of the earth could have started as...
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Removing the gold bearing rock from the ground is just the first step. To isolate pure gold, mining companies use a complex extraction process. The first step in...
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There is enough gold at earth's core to cover the surface of the planet in 12' to 13' ... The gold we are recovering is volcanic but from the earths crust (meteorite...
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