Geology of Gold

[philiprife]

I enjoyed learning about this. Always wondered how it was formed.

[gomaluniversityudubai]

How i sent you my village soil picture

[curvebuster]

Just the left arm hold are horizontal, works for Flat Earther.
Well Done.
😮

[cbthunderpig]

Most of it came from space, easier explanation., Your view would have let the middle age alchemists " make" gold. I'm sure all the goldmining rushes by people with no education understood this and could recite all those great big words and knew the differences of alloy chemistry. Then you have all the civilizations wipe out each other for the greed of gold, but I digress that's not part of the geology.

[theobserver]

This was very interesting! Thank you for making this video. I might add that the story of gold would be incomplete without at least an honourable mention of the stars that died in the actual making of the gold in the first place.

[stephenmanning]

Smokers in my opinion are rare and produce few commercial deposits, Japan being an exception. Most of the commercial deposits I have seen (and non-commercial) are acid volcanics being squeezed through some iron rich rock like Dolerite. The most spectacular, and I really mean spectacular deposits are when Quartz, Dolerite and Carbonaceous Shale interact. You would find it hard to understand what I have seen/done. Greywacke is now considered to be the result of an underwater "avalanche" which predates the Gold mineralization but really helps the gold to concentrate. Shale contact. Golden Crown Mine, Western Australia. Greywacke. Comet Mine via Cue Western Australia and the Nullagine to 20Mile sandy creek, Pilbara Western Australia.

[philiprife]

I lived in Dahlonega, GA for about 13 yrs until just recently. It's considered to be the site of the US's first gold rush around the 1830's. Auraria was the the name of the community that sprang up around the major gold mines, .(Auraria being derived from the Latin for gold.) There was enough gold to justify having its own US mint until the start of the Civil War. It's my understanding that miners from this area, on their way to the CA gold fields, discovered gold at the confluence of Cherry Creek and the South Platte river, which they named Auraria, which eventually became Denver.

[stevenbrenner]

Terrific video.
Probably a lot of gold around the “black smokers” on the sea floor, but hard to recover.

[SandhillCrane]

Finally someone's discovered how to profitably extract gold from seawater!

[mooredelira]

the oceanic crust is denser, not heavier, than the continental crust