Відео

Will you do a video on Rosette diagrams?

It's pronounced Deeabeg BTW

Excellent content as always. Love the channel!,

Great talk. Thanks a lot. If the veins talked at 10minute' can be proved to be dyke-like (discordant) veins and sill-like (concordant) veins, they might form simutaneously with those platy structures with surface stretching lineations. Can this hypothesis be possible?

📯🕒⏳⌛; with all do respect ; there is Nothing that old

📯🕒⏳⌛; Thank You for this ; do you know what the tsunami did to the other countries it hit ?

Wonderful stuff. Is there a guide you would recommend for a self tour of Aberdeenshire geology?

Thanks Rob

Great video! It's a shame you didn't include the Corona lava tube system in the North of Lanzarote; the Cueva de los Verdes, Jameos del Agua and Túnel de Atlántida.

My only disappointment in this is that you did not walk the highlands dressed like your historical peers.

Lovely, an excellent exposition of field geology.

This begs the question of how those other copper deposits were introduced in that magnificent mine at the Great Orme. This is about 100 miles South East of the Iapetus suture zone at Niarbyl on the Isle of Man. So wouldn't these structures have been created so much earlier, in the Caledonian orogeny? I'm trying to get a sense of the whole story of Avalonia, from its birth at the splitting from Gondwanaland, through to its extinction when Gondwanaland came back to meet it, in and afte the Variscan.

This is the fifth video I've watched on Siccar Point, and it does the best job of explaining the geological processes-far better than the BBC. The illustrations and graphics are great as well. Excellent video!

Yes, but what was the driver of the faulting and metamorphism? Was it the joining of Avalonia to Laurentia in the Caledonian orogeny, or the splitting apart of the proto-Atlantic in the Permo-Triassic?

i wish they would ban upland sheep , the damage v economic benefit is 1000 to 1. Damn i wish i knew all this when touring on a mb .

Always excellent. Argand was very ahead of his time (as with Suess)…his drawings are incredibly beautiful.

Amazing.The rocks tell histories and I want to know their language

I think about Easter 1973, as an undergraduate at Aberdeen geology department, I set off on the traditional 'Prof's excursion'. A transect of the Alps from the Pre-Alps to northern Italy. It was largely an exposition of the classic works of Arthur Holmes and his associates, but brought to life in typical Alpine weather, not all of my classmates survived unscathed!!! I'm revelling in the detailed field crops you bring to the screen and expound, no doubt, the clarity brought by modern research to this showcase of Alpine geology😮

Another great video - superb scenery and a good explanation of complex processes reflected in the rock units you described. Look forward to the third video in the series!

Oof... think I need to watch that a couple of times!

Superb per usual, thanks Professor.

Thank you

man this is wild

This is the first analysis of different types of rock layers I've heard since I was in college back in the late 1990's. Great stuff! Got me to thinking in geological terms and understanding how the earth was made! I'm still able to learn! Glad I came across your video! Made a good study for a couple of hours. I love Scotland!

good vid. thanks. I subscribed.

Thank you

As always, an excellent and educational video in a wonderful landscape. It seems have come across core boring holes more and more over times, a site I visited a couple months ago had dozens of it, borderline vandalism in the name of science? Well, it was an interesting impact generated tsunami deposit, to my surprise I came also across three different types of Boudinage within 30m of each other (two on different clast, one in the breccia after deposition), apparently totally ignored by the sedimentologists…..

Amazing

Splendid! I came for the scenery and stayed for the thermobarometry.

Outstanding. Thanks (again) Rob for yet another superbly cross linked lecture... 👌

Thank you very much

What super rocks! Love that you can see so much in hand specimen, and then your PT burial/exhumation explanations. That was a part of the OU hard rock course I really enjoyed (30 years ago now) and it all cam flooding back

i am having a strange sensation of déjà vu... 😃

reupload?

I have a book signed by Nicol on the geology of north Scotland, I was yet to read t but will make an effort this week i think.

My father's father's ancestors all came from this area and would have walked over all of this landscape. I feel I am touching some family history by watching this. Beautiful country.

Thank you for this interesting video, Mr. Butler! A factual story of two different interpretations explained simply. For me, as a student, it was easy to understand. And thank you for the book and field trip recommendation :)

I can only echo the many comments praising the clarity and unembellished simplicity of your presentation. It all makes for a wonderful watch. Thank you, thank you, thank you.

The plover lives at the divide, you can hear it calling as Rob explains the different rock forms at the divide.

Sadly neither picture is correct. 2D lines are really not the tool to use. 3D seismic would be a better solution. The faults in B make more sense as the fault zone has been active for a long time. What we see is the last movement, and only movement in the plane of the 2D seismic. A 3D data set will certainly surprise one, with fault movements not considered. These out of plane fault movements also give rise to a false stratigraphic interpretations. The B solution can be improved by timing of the faults, what stratigraphy, which way did it move etc. A warning about over interpreting the data, maybe the A concept of a fault zone is the best until you have way more data .

Some of this controversy seems like it might have parallels in interpreting the geology of western North America the complex picture presented in Nick Zentner's A to Z Baja BC livestream series. There the big problem seems to be that we have rocks which paleomagnetic constraints showing they must have moved thousands of kilometers from where they formed but no fault or faults upon which said motion can be accommodated. The seismic tomographic data and sedimentary and igneous petrology data also support the moving picture in the context of something like a well developed oceanic volcanic archipelago but leave the picture of how to accommodate the motions and forces observed with observations. I can't help but wonder what we are missing Robert Hildebrand's work seems particularly insightful in terms of big picture connection but even a few things of his such as what has occurred along the Rocky mountains raise more questions than answers I wonder what future geologists will think about the situation? At the very least seismic tomography shows that the conventional model of the rocky mountains formation being due to flat slab subduction is bunk since there is no slab in the mantle to cause said flat slab subduction as there isn't an associated fast sheer velocity discontinuity down there which is what subducted slabs look like in seismic tomographic data.

Amazing lesson. Cheers from Brazil

Very good exposition of this pivotal moment in the history of geology.

Wonderful presentation, thanks.

Excellent explanation of the beautiful diversity of the highland scenery. I've walked and cycled a lot of those locations!

Interesting analogies to the climate change theories

Because of you i was able to understand and pass my exam which i failed two times before. Thank you so much!!

Jollygy ??? Geejollygy ???

Loved that! It took me right back to the OU "Hard rock" course in the early 90s... off to find where I put my copy of Oldroyd's book! ... Found it! Thank you.

thank you very much!