Thanks

Very interesting video! Just returned from the exhibition of cobalt glass dishes in a palace in Kuskovo, Russia. Curious that it was so rare in expensive in XVII-XIX and how massive it is mined now.

Hello, I am from India. I just want to ask, is it possible to find gold in the geological areas you have shown and is it very abundant in similar areas? And the areas you have shown are very abundant in our country and if I try to search for gold in that area, can I find any clues about it in that area because I am very good at finding gold?And I have learned a lot from your video and I need to know more. Please answer my question because many researchers have shown that gold is embedded in sulphide areas.Please let me know about this, thank you.

I echo the request for an episode on rare earth elements. I would also like to hear about the geological set-up of uranium deposits.

Hey! I'm a fourth year geology student and I'm really interested in rare earth elements, maybe you could make a video talking about them, thanks for the videos ! :)

Your conclusions look amateurish. 1) we don't need that much metals, there are other materials, like silicon nitride for example, close to diamond hardness. Nitrogen is the most abundant gas, silicon is the most abundant element. 2) aluminium is the most abundant metal on earth, will be enough for our civilization for the next 1000 years. 3) there is an unlimited energy source of energy, called, geothermal, when AI is ready we are going to put it into the robots and they will build geothermal energy plants. 4)governments are already doing work related to carbon emissions, they give tax discounts for those who use solar panels. 5)etc. ,etc. etc.... read some more physics, chemistry, mechatronics, machining, industrial engineering

Solar panel metal layers are made from aluminium, not copper

zamzam water

I very recently learned about the relationship between pegmatite and lithium. I find a lot of pegmatite and porphyry on my hikes around Las Vegas. We’re getting a new lithium mine in the state soon.

I didn’t understand the relationship between all the ocean fossils in Arizona and the copper mines, but I do now. Morenci and Bisbee are two places that always spring to mind when I think copper.

I watched something on the Clarion-Clipperton Zone and the controversy around mining claims there and the environmental impacts of those mining methods. Potato-sized nodules of manganese litter the seafloor and from what I remember, there isn’t a way to scoop those up and bring them up to the surface without also scooping up sea life.

There is a three tower CSP system not too far south of Las Vegas along the I-15 called the Ivanpah Solar Power Facility. You can see the first tower from quite a distance as you approach along the freeway.

I have been running across porphyry in a wide range of colors on most of my hiking trips and was seeking more info on it, which lead me to this video. Towards the end of the video you show a cross section of a porphyry copper deposit. It took me a moment to notice you were showing Nevada. Guess where I live? Nevada.

Very informative

Thanks for the info in this video. Owner of Alaska Rare Earth LLC

Thanks for the info in this video! Owner of Alaska Rare Earth LLC

Love your style of teaching ❤

GREAT VIDEO! #subscribed

Super...

Outstanding...need more videp like this ...thanks

Respected Mam What Geological conditions can form multicolored layers of clay at a depth of 20 to 40 foot (1 foot =12 inches) mostly yellow to brown colours over vast areas. Please give the answer ,if you can.

hi please read the quran verses about the geology and how the precious metals are formed for us and become a shiaa

Well done. The voice overs have improved tremendously. :) The audio for the intro on the bench was very clean given the conditions, it make a positive difference to the production. Nearly all the lav mic was clean but a couple of scenes suffered from wind noise. If you're using Resolve as your editor, there is a superb voice isolation tool that will totally eliminate unwanted background noise. I really liked the outdoor setting used in the intro. I'm really curious as to how you did your audio in the intro. I saw some good cuts and fades used throughout the video. Loved the walkaway from the intro, it was well scripted and executed. There is certainly a positive difference compared to the first one I commented on about a year ago. As always, very informative and well presented and btw, I know and appreciate the huge amount of work the pair of you go to to present these videos.

Thanks for good info! Alaska Rare Earth LLC

Very good. You rise my experience greatly. Thanks

Looking at the Pie chart I thought Sweden produced Nickle - and on the core samples - I suppose they have to use a diamond hole cutter to drill the core - but 1000 feet ? (300 meters) - amazing amount of work just looking for economic deposits - you wonder how much is below what we can not 'see' especially in cold areas and Oceans

Interesting. I assume that Pentlandite was named after the Pentland Hills southwest of Edinburgh.

Very interesting, thanks for explaining the role the sulphur bodies play in the formation of deposits.

Are there practical ways to do solution mining for such minerals?

That would be a massive undertaking, a compromise between the Environment and capital investment. Underground mining is not very safe and open pit is very destructive to the environment. Thank you for the info

Interesting and informative as usual

Thank you.

What do you think of Prof Simon Michaux's research indicating there are severe limitations in material availability for a full transition to renewable energy?

Very interesting! We looked at the ultramafics in the Newry Igneous Complex many years ago, but at a time when fieldwork was made difficult by political problems, perhaps time to look again. I would be interested to see that poster in the field office - do you know the author of it?

This technique is very good to show the rocks to the observer ❤❤

I don't know why some viewers complain about the audio - you have a perfectly clear voice and I'm slightly deaf! Nothing worse than an AI generated voiceover with incorrect pronunciation. Great series - I worked in the Spanish Pyrite belt for 5 years and loved the place, especially the faint smell of sulphur on any hot day. We discovered the Aguas Teñidas mine which is still in operation.

Cobalt was found in the silver mines of the Erzgebirge ("Ore Mountains") in Saxony, Germany. It was used for making blue pigments as well as colouring glass. However, the ore was also a problem for the miners given its association with arsenic and hence named after the mythical and malicious elf "Kobald" who was supposed to haunt the mines.

Many geologists have walked over spodumene thinking it was just a feldspar phenocryst in a pegmatite. Well worth having a closer look at all pegmatites!

The Lecht Mine in N. Scotland produced manganese in the 18th and 19th centuries and the mine building is now a visitor attraction. The manganese dioxide ore was used to make chlorine and bleach in those days. Probably a supergene deposit of Fe and Mn oxides in a breccia. These same deposits were used by locals to smelt iron to make agricultural implements and weapons.

The biggest zinc mine in Europe is the Tara Mines at Navan in Ireland. It was discovered in 1970 and is still producing 50 years later. The deposit is a variant of a MVT and is hosted in flat-lying Lower Carboniferous limestones. Silve and germanium are the two trace elements commonly associated with these Zn-Pb deposits, but other elements can be found in small quantities too, like the nickel in the Lisheen deposit, (Ireland).

Have ye no stolen enough

I've gained a bit of gold myself at Leadhills, and it is a fun day out.

Great video. I had the pleasure of visiting the exploration ship for Nautilus back in 2011 whilst they were drilling the copper/gold ore types in the Bismarck sea off Niugini.

yeah I'm into heavy metals

Hi there, as a professional geologist, I found both part1 and 2 of great interest. Well done! But please get to work on your audio, the constant changes of tone and level do distract from the appreciation of your work. More or the same please.

Thank you for your video, here in Far North Queensland ,Australia there's still plenty of tin in the creeks.

Enjoyable video. I've had many enjoyable days at Baile an Or. Thank you.

Great Presentation with a right combination of actual footage and schematic diagrams.

An excellent presentation of the process for how these deposits form. I was able to fully understand and appreciate this geological process. Up until now, I did not understand why certain mineral deposits form in certain locales and what the process is for their deposition. It makes the source, trapping and accumulation of petroleum deposits seem to be much simpler, though related.

Fantastic! Really well structured