The Metamorphic Gold Model - The New Zealand Story
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- Опубліковано 8 лис 2013
- Dr Iain Pitcairn talks about his research into the origin of gold deposits in New Zealand's South Island. Iain analysed hundreds of samples from the Otago Schists to demonstrate that gold deposits were derived from fluids that formed during metamorphism of the parent rocks. This is the essence of the metamorphic gold model that is used to explain the origin of orogenic gold deposits. See more films about gold deposits at GEOLOGY FILMS Channel goo.gl/0mw8Z4
- Наука та технологія
Thanks Clive..........well explained, great illustrations and clear dialogue.
Awesome job by Iain, thank you
great explanation, keep up the good work.
I just found your channel - fantastic and thank you.
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This is a great program! Very interesting. Thank you. Please post more of this quality. Thank you so much.
Thank you very much - much appreciated. There are a more at the Geology Films channel
ua-cam.com/channels/lcZXBMeHSw-4BwOfVQPK_g.html
and 2 on a Government channel.
ua-cam.com/video/_S-024Cb5VE/v-deo.html
ua-cam.com/video/yPf4UAK4k14/v-deo.html
Fantastic!
what a great investigation. Better than a true crime story
Thank you for watching
Excellent.
Very interesting, Cheers.
I like accents w/ stories of GOLD! ✨️
i've enjoy studying gold and silver geology, i've often wondered why carbonates/ocean sedimentary limestone and marbles can sometimes make up huge world class gold deposits/mines from a generally low grade invisible/disseminated gold ore (carlin type), also mid to really high grades that contains visible grains of electrum on up to solid wires, sheets and nuggets of electrum, high grade gold, high gold silver, and at the same time, the exact same formation/s barren of mineralization, all within the same mining districts, this video gives me insight into the processes at work, great video, thanks for posting
The simple answer is that all gold deposits do not form in the same fashion, and that ALL large gold deposits cannot be tied specifically to the orogenic and metamorphic model. Some ARE related to granites or their equivalents in relatively shallow-emplaced volcanic centers. The Comstock, for example, is a very different beast from California's Mother Lode (orogenic), from Carlin (a disseminated gold deposit), and is only a kissing-cousin to a big rhyolite-caldera hosted deposit like Round Mountain, Nevada, which has produced some spectacular coarse-grained gold. Yet all are only a day's drive from each other.
The trace of the Alpine Fault at 5:23 is wrong. It does NOT pass through the lower North Island. Rather it splays at the top of the South Island into a series of faults. One such fault is the Hope Fault which links up to the Hikurangi Subduction Zone.
Fascinating
Awesome
Hi, I am looking for the chemical reaction equations associated with gold formation during retrograde metamorphism of pyroxenes to amphiboles. Do you think you can help me please! Many thanks.- Prem
When my wife smiles, she glows w/ radiance and becomes Metamorphic
The heat, pressure, and amount of fluids would have to overpower the density of gold and layers of opposing soils. In order for their theory to work
Thanx man❤
I live on the West Coast of New Zealand. It is a beautiful place. Where’s the most likely place for gold to be?
The Northwest part of the Sth Island has a few places but there's also gold down in Otago.Try this website www.nzpam.govt.nz/nz-industry/nz-minerals/gold-fossicking/
The suggestion of mineralisation from 50 years ago is advancing to theory, and will continue to verify geyser gold deposits?
Yes... this has been my theory... with out other influence by the common educational system...
He rather looks like Daniel Jackson of SG1 fame.
Baloney! The gold-laden water came from dehydration of sediments during the consolidation of the sediment mass.
I think you're all looking in the wrong place. Instead of looking for gold in rocks of parts per billion I think you'll find more gold in water. Especially at the ocean depths where metals are more concentrated than at the surface.
There is gold in seawater but at extremely low concentrations of parts per trillion. There may be slightly higher concentrations in different parts of the ocean but ultimately any gold in seawater must have come from the rocks to begin with.
Can you imagine how expensive it would be to mine gold from the ocean? It's hard enough from the surface lol!
This isn't a video about finding other gold, it's a video about how gold gets to a specific environment (which isn't the ocean).
@@qbb01 Fritz Haber (inventor of the notorious Zyklon B) tried to extract gold from seawater to fund the Nazi war machine.