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en.wikipedia.org/wiki/Ore_genesis

Various theories of ore genesis explain how the various types of mineral deposits form within .... Gold deposits are formed via a very wide variety of geological processes. Deposits are classified as primary, alluvial or placer deposits, or residual ...

en.wikipedia.org/wiki/Gold

Gold is a chemical element with symbol Au (from Latin: aurum) and atomic number 79. ... Because the Earth was molten when it was formed, almost all of the gold present in the early Earth probably sank into the planetary core. Therefore, most ...

www.sbcgold.com/blog/how-is-gold-formed-and-where-does-it-come-from

May 18, 2015 ... Similarly, alchemists never managed to turn base metals into gold. How is gold actually formed? If we can recall back to our high school ...

www.zmescience.com/science/how-gold-is-made-science-064654

Nov 23, 2016 ... On Earth, gold finally reached us some 200 million years after the formation of the planet when meteorites packed with gold and other metals ...

www.sciencedaily.com/releases/2011/09/110907132044.htm

Sep 9, 2011 ... During the formation of Earth, molten iron sank to its centre to make the ... majority of the planet's precious metals -- such as gold and platinum.

www.nature.com/news/earthquakes-make-gold-veins-in-an-instant-1.12615

Mar 17, 2013 ... Scientists have long known that veins of gold are formed by mineral deposition from hot fluids flowing through cracks deep in Earth's crust.

www.australianminesatlas.gov.au/education/down_under/gold/formed.html

How does Gold form? The most common natural method of concentration of gold is through the ancient action of hot fluid inside the Earth's crust. (Fluids deep in ...

www.amnh.org/exhibitions/gold/incomparable-gold/forming-deposits

Gold may occur as deposits called lodes, or veins, in fractured rock. It may also be dispersed within Earth's crust. Most lode deposits form when heated fluids ...

scienceline.ucsb.edu/getkey.php?key=169

Billions of years ago when OUR star (sun) formed, the cloud of gas and dust that condensed had tiny amounts of gold (Au) and other heavy elements from ...

www.sbs.com.au/gold/story.php?storyid=128

Today, the search for gold is as eager as ever, despite the vast stocks stored away in ... Gold deposits have formed at many different times during Earth's history.