The Earth's core contains gold and other heavy metals – with molten lava. Gold is the 5th most abundant element on Earth – but concentrated in the Earth's core. But nature will leach it out for us.
Gold and platinum are soluble in high temperature and pressure water. So as the river of hot water circulates anticlockwise over the Earth's mantel, it leaches out these metals.
This is why the geothermal water left behind metal deposits, and the water pressure drops, and the metal precipitates out. And at the surface we get a warm spring.
So we find just such a spring, and use ground sonar to track the water back to a mantel pocket 34 meters down. I thought only 10 metres. My internet contact did not say why we needed to drill down just 34 metres.
So we drill down to the mantel pocket – or we can send down our slug of high explosive, and form our own mantel pocket.
We get up a stream of 8 atmosphere 280oC water – with the heavy metals in. This is why this free steam source has never been used.
We pass it through a double helix – a Dyson dry cleaner. After were vent the pressure to 7.8 That is atmospheres. The water boils, and the Dyson extracts the metal dust. We use the steam to generate power.
I thought a $1000 thermoelectric mains generator was the easiest way to turn hot steam into power. And these things are most efficient at 350oC. So we can use a Carnot system, to condense the steam, and heat up the steam.
And we get gold, platinum, copper – but also lead and arsenic. So we sell on, to process into metal ingots.Read about underground Manchester rhttp://www.mangeogsoc.org.uk/pdfs/daluz_15_2.pdf
Each plant will produce 20 tonnes of gold a year. That is at $40,401,284.00 a tonne today. And the Earth's core holds 455 million tonnes of gold.