how does gold form in the earth

  • Forming Deposits American Museum of Natural History

    Goldladen water heated by magmamolten rockin Earth's shallow crust forms a variety of lode gold deposits. Placer deposits form at Earth's surface when weathering action exposes gold from other, older lode deposits. The gold is swept into, and settles in, streams, lakes, rivers or the sea floor. Many placer deposits are 

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  • Where is Gold Found? What is Gold? Gold in Nature Gold: A

    Gold is found on every continent on Earth, except Antarctica. The largest amounts of gold on Earth are found in the oceans but it is not yet feasible to extract gold from seawater. Gold is found all over the world including Canada, the United States, South Africa, Russia, Peru, China, Australia, Indonesia. Press the button next 

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  • Where does all Earth's gold come from? Precious metals the result

    Sep 9, 2011 Ultra high precision analyses of some of the oldest rock samples on Earth provides clear evidence that the planet's accessible reserves of precious metals are the result of a bombardment of meteorites more than 200 million years after Earth was formed.

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  • Earth's Gold Came from Colliding Dead Stars201319

    Jul 17, 2013 We value gold for many reasons: its beauty, its usefulness as jewelry, and its rarity. Gold is rare on Earth in part because it's also rare in the universe. Unlike elements like carbon or iron, it cannot be created within a star. Instead, it must be born in a more aclysmic event like one that occurred last month 

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  • Earthquakes make gold veins in an instant : Nature News & Comment

    Mar 17, 2013 Expand. Scientists have long known that veins of gold are formed by mineral deposition from hot fluids flowing through cracks deep in Earth's crust. When mineralladen water at around 390 °C is subjected to that kind of pressure drop, Weatherley says, the liquid rapidly vaporizes and the minerals in the 

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  • Where does gold come from? › Dr Karl's Great Moments In Science

    Dec 3, 2013 Over the next 100,000 to million yearsorso, these 10kilometre sized planetismals collided and stuck together to form smallish planets ranging in size from Moonsize to Marssize. Then, over the next 10 to 100 million years, the larger planets would have formed. Specifically, in the case of the Earth, 

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  • How Gold is made and how it got to our planet ZME Science

    Nov 23, 2016 In fact, there are enough precious metals in the core to cover the entire surface of Earth with a fourmetre thick layer. neutron star mount everest · neutron star density. Another theory concerning the formation of gold that's been gaining a lot of traction today is that the element can form following the collision 

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  • Meteors Delivered Gold to Baby Earth, New Study Hints

    May 1, 2011 Not all that glitters is gold. But Earth would have a lot less of the glittery stuff if not for a massive rain of meteors about 3.9 billion years ago, according to a new study. Related Content. Origin of Mysterious 2,700YearOld Gold Treasure Revealed · Illegal Gold Mining Boom Threatens Cocoa Farmers (And 

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  • How does gold form on Earth? LabRoots

    Jan 15, 2017 Did you know that gold actually comes from the stars? Well, it technically comes from the explosion of a star a supernovae in fact. Because of the huge g.

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  • How is Gold Formed Know This and You Will Find Gold Nuggets

    How IS gold Formed .Knowing This WILL Help YOU to Find Gold in WA. How is Gold Formed? Does gold grow in the ground or not?? . OR, are gold nuggets the remnants of geological formation of at great heat deep within the earth millions of years ago and now after countless earth upheavals and erosion events are 

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  • How gold is formed on earth. YouTube

    Feb 17, 2017 World geology with national geographic.

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  • BBC News Does gold come from outer space?

    Sep 19, 2013 "Why do you find nuggets of gold on the surface of the Earth?" asks science writer John Emsley. "The answer to that, is that they've arrived here from space in the form of meteorites." This theory has come in the last few decades to be held by the majority of scientists as a way of explaining gold's abundance.

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  • How is gold made? UCSB Science Line

    As these gas clouds collapse to form stars and planets (perhaps in part due to pressure waves caused by supernova explosions) the heavy elements get collected as well. Then once a planet like Earth is formed, somehow geologic forces take over and process the gold into enriched forms until we find it. Another possibility 

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  • How is Gold Formed and How Did It Get Here? Scottsdale Gold

    Sep 25, 2017 There is far more gold sitting in the core of the earth than has ever been on the surface. That gold was generously donated by our sun. Over the billions of years, it took to form the earth, that gold along with most other metals given to us by the sun, has sunk to the magma core of our planet. There is enough 

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  • petrology Why do gold deposits form only in certain areas of the

    I'll take the form of the question given by another person here and attempt to provide a different answer. So what you are asking is: "How did gold become so concentrated in certain parts of the world?" So yes, gold is all around but the concentration is too low to make extraction of it worthwhile. You need 

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  • The World's 10 Most Prolific Gold Fields CMI Gold & Silver

    Mar 31, 2011 Mining in the Witwatersrand Basin is accomplished by creating deep underground tunnels that are necessary to reach the plentiful reserves. The Tau Tona Mine features the deepest tunnel in the world extending a full 2.4 miles below the earth's surface. A massive ventilation and air conditioning system is 

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  • How gold is formed on earth. YouTube

    Feb 17, 2017 World geology with national geographic.

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  • How Gold is made and how it got to our planet ZME Science

    Nov 23, 2016 In fact, there are enough precious metals in the core to cover the entire surface of Earth with a fourmetre thick layer. neutron star mount everest · neutron star density. Another theory concerning the formation of gold that's been gaining a lot of traction today is that the element can form following the collision 

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  • Where Did Earth's Gold Come From? Forbes

    Oct 27, 2017 If gold is created in neutron star collisions, how does this gold come to exist in planets such as Earth? This question was originally answered on Quora by Jack Fraser.

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  • #53: Did Earth's Gold Come From Outer Space? DiscoverMagazine

    Dec 27, 2011 Money never grows on trees, but precious metals do sometimes fall from the sky.

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