How Snowball Earth Leveled Mountains and Created the Great Unconformity

[@myroncook]

Viewer, Thomas Cheymol suggested that I should mention isostasy. I thank him for the suggestion and agree! At 18:00 I talk about deeply buried sediments being continually uplifted and eroded in an approximate equilibrium to eventually bring metamorphics and granites to the surface. I should have mentioned that most of this uplift, after the initial formation of mountains, is through isostasy. When you load the crust with weight (mountains, sediments, ice) the crust sinks into the mantle (basins like the one on my sketch do this) and when you erode or remove weight the crust slowly rebounds, bringing deep rocks to the surface. Therefore, the principle of isostasy is key in both deep burial and massive uplift. NOTE #2 Concerning glacial periods. I mostly referred to a period from about 800 to 600 million years ago when at least three major glaciations occurred. The three biggest ones we know of are named the Sturtian, Marinoan, and Gaskiers. There was also at least one about 2.5 billion years ago.

[@RU3YJB]

I enjoy your presentations, and the reverence you sometimes show and allow breathing room for us to think and feel about geological formations and environs. But I get really excited when I hear all of the legitimate professional terminology, because it not only refreshes my memory of things I have already learned, but I learn new things as well. More, please!

[@cosmicHalArizona]

Isostasy?

[@TheWadetube]

I see evidence of a global flood all over the world and yet mainstream geologists nearly always dismiss it because it comes from the bible... which they also dismiss. But it also comes from over 200 cultures and languages around the globe. Every country knows it happened and approximately WHEN it happened but this is not calculated in any rock formation, layering or depositions of materials like river rock found INSIDE a mountain slope, sea shells on Everest, Whale Bones on the high plains of the Atacoma desert. But what I wanted to point out is that fast erosion of the Grand Canyon came from a inland flood and was rapid, otherwise all rivers around the world would be grand canyons. And a large flood can put down many layers of sediment in one flood drifting in from various areas and this is demonstrated when petrified trees are found STANDING upright in many flat layers of sediment. They were buried whole, otherwise the would have died and rotted and fell over. Some of these layers are from one large flood, but there are three other means by which layers are deposited that I can think of. Sand and dust storms, volcanic ash or lava, and asteroid impacts and micrometor dust raining down, about 100 tons of it each day. Can you name another source for these new layers?

[@nothingmuch8865]

@@cosmicHalArizona Actually, the Isostacy Apostasy!

[@ev6558]

@@kevinrussell1144 Very glad to see this, because I wanted to say something similar. I don't personally claim to know enough about geology to even have an opinion on which hypothesis is more valid, but he is presenting this as settled fact when it is not. In fact, not even all the proponents of the Snowball Earth hypothesis even agree with him that the oceans were frozen solid.

[@DaSchnuz]

As a retired geologist, who spent majority of his working years in well logging, you do a wonderful job explaining everything to non geologists! I love how you use modern technology with old technology to explain things and you do it in a way that people can grasp the concept, the present is the key to the past! Well done!!

[@myroncook]

Thank you for the feedback

[@dudedude2207]

The past is not observable

[@jeremiah_dyess]

@@dudedude2207 It so is!

[@dudedude2207]

@@jeremiah_dyess how?

[@jeremiah_dyess]

@@dudedude2207 "How" is a broad word. We would have to agree on a few points. Are you edumacated? I mean do you understand how knowledge is accumulated? I just want to be able to speak in your terms. Am I speaking to someone in high school, or is this an adult?

[@peggyteague6825]

So glad I found your geology site. I am a former mudlogger of 14 years. I was always so excited to find microfossils in my samples. Especially knowing I am the only human to have ever seen those particular mud samples. Everytime I see strata I wonder where it is from and how it has formed. It must be truly amazing to put your hands on all those rocks. And yes, I truly wish I could touch them also. Your teachings are magnanimous! And I will continue to and look forward to your next teaching.

[@myroncook]

I love your story, Peggy. I have great respect for mudloggers; part science and part art. I think about fossils and or geologic features in a similar fashion....amazing that I am the first to see it or that it somehow miraculously presented itself to me.

[@jeremiah_dyess]

I sing this to myself all time! kzbin.info/www/bejne/qHjEanyspdSigas

[@Jaggerbush]

Near Peggy... Single??

[@guiart4728]

People think geology is a dry subject but the geologists I know of are some of the most enthusiastic and passionate folks around!

[@PetroicaRodinogaster264]

everyone thinks that a subject they are not interested in, is dry. Very few people are willing to learn about something they will not pursue. If everyone considered every other area of knowledge to be as exciting as their own, just think how much better off we would be. But, we are far from one of the Earth’s success stories. We do not appreciate the Eons that it took for things to happen and how, with one stick of dynamite, we can send that to oblivion. Humans are in my opinion a deadly virus that is the scourge of the planet.

[@Hossak]

It is creators and channels like this that are the heart and soul of youtube for me. Thank you for all the hard work you are putting in to bring the joy of geology that you clearly feel to us. I am loving all of your videos!

[@markdoherty9205]

I'm from the UK, which, for a small island, has a mass of geology. But what a fantastic insight into american geology Myron gives. As another comment said, it's a great storyteller. Thank you, Myron.

[@myroncook]

Glad you enjoyed it

[@richardschaeffer3204]

I'm intrigued by doggerland , now under the English channel. During the younger dryas, ocean levels were over 150 meters lower.

[@markdoherty9205]

@richardschaeffer3204 oceans lower or did the land sink lol. This is what I love with geology. Piling in London we found sink holes 20m down as the uk is still tipping back after the ice age, Scotland is lifting and England is sinking.

[@Evan490BC]

Hi Mark, I'm British as well. I wish people stopped calling Great Britain a "small island". It's not Greenland, for sure, but it's not small either.

[@prototropo]

@@Evan490BC Very true if you're traveling south-north, which gave me one of the most evocative drives of my life--through the regards of Caledonian geology, Boreal Floral Restoration after the last Glacial Maximum, insular fauna extinctions, Chaucer's honey'd tales, Roman and Pre-Roman history, a wall by Hadrian, the great gay Iberian Emperor, Elizabethan literature, Purcell's Prototypical Tonality, Turner's Krakatoan sunsets, the intellectual leviathans Bacon, Hooke, Newton, Priestly, Lovelace, the Brontes, Byron, Young, Halley, Wallace, Darwin, Huxley, Maxwell, Dirac, Woolf, Auden, Russel, Turing; Vaughn-Williams' Ascending Lark, Britten's Homage to Purcell's processional majesty, Churchill's leadership and the British heroism of WW II. xxx ~ With tremendous love and admiration from America.

[@janreynolds3388]

My college geology classes are coming back to me. I was a zoology major when I took my first geology class in 1970. If I hadn't put in two full years into a zoology degree, I would have switched majors. Sometimes. I still wish I had. I love listening to the great geology lectures on You Tube. Thank you!

[@clairpahlavi]

Study the Thunderbolts Project for another twist in the geologic science. Open your mind. Move outside of standard classic geological box.

[@Andre_XX]

@@clairpahlavi I thought I would check out the comments to see how long it would take to find a comment on a pseudo-scientific crank idea. It did not take me long to find one.

[@Joe-Przybranowski]

The 'open your mind' gives it away.

[@bimmjim]

I'm here from Climate Science. .. I need some paleoclimatology. Also enjoy the zoology.

[@fisterB]

What an exciting luxury to have such a field geologist pointing and explaining with such narrative joy. I wish I could recognize the 'pages', the unconformities and all these phenomenons with that kind of ease.

[@donnavorce8856]

Over 45 minutes with Myron! Awesome. Thanks Myron and also thanks to your photographer. Great work.

[@chrisrozier9787]

Thank you so much for inviting me along, on all your KZbin geologic journeys. I have found great enjoyment and enlightenment through your geologic discussions and thought experiments. I find a peace and understanding with these deep age processes and how they evolved to today and beyond, hard to find this much knowledge and effort together just to further anothers knowledge. Thank you Myron for all your efforts.

[@daleeason9687]

I'm so glad you put this one together. In 1951 when I has 5 we moved from Lander to Worland. My dad was in oil exploration ( a seismograph crew) for Phillips Pet. It was the first time I ever remember going through the wind river canyon. I have gone through it many times since. But have not lived in Wyoming since the 50's. Thermopolis and Tensleep where areas we visited many times as well. You have just explained some of the Geology of my childhood. That I never knew how those features were made. Now I know and it is amazing. I knew a little geology from what my father learned as he worked on the seismograph crew. Plate tectonics' was not understood back then. It is a joy to learn about now and how it has shaped the areas were we live. Thank you so much.

[@myroncook]

I really enjoyed this history, Dale. All the best

[@joshportie]

And his explanation isnt correct. The religious interpretive spin is hard.

[@elsapon]

"... which overwhelms me with a sense of awe.": you make it contagious! Thank you for your passionate insight into this often disregarded but quite inescapable facet of our gorgeous blue ball, and please live long and proper. :)

[@myroncook]

I'm glad you felt the awe!

[@whyyes6428]

Thank you for all the driving you've put in to make this video. I think it's people like you creating videos like this which will help people find and develop a passion for geology. Although you don't have a substantial subscriber base, I'm every everyone of your subscribers appreciates the hell out of this. Cheers man

[@sksk-bd7yv]

Wow! Geology is fu*king amazing! Thanks!

[@cuncata]

This is fantastic. I had a real interest in geology when I was but 5 years old; it didnt go away. I can't tell you how much I appreciate these educational videos. You are a truly great science communicator. I would love to go on a field trip with you. My uncle is a geologist and on our camping trips he spoke like you do :) Thank you so much.

[@petecooper4412]

This 82 years old engineer is your latest student. Thanks, Myron.

[@potato9832]

I'm a former software engineer. I spent the past 10+ years learning about physics, chemistry, math, philosophy, antique computers, and music theory as a hobby. Now I am interested in learning geology and have a new source of videos to watch. 😊

[@karendasero8061]

Your videos are wonderful. My father was a geologist and wanted me to study geology. I didn’t think I was proficient in math and science to do so. He always took on rock finding hikes in the San Gabriel mountains, Los Angeles National Forest. He lived and breathed geology. Every day I look at those mountains and remember those moments.

[@myroncook]

Love this

[@augusth3532]

As a non-geologist this was a very informative and easy to understand video. I really liked that you actually went out and showed the real rock formations, and your enthusiasm was very contagious.

[@Oldbugssy]

I think I need a new head gasket. Because every time I watch one of your presentations you keep blowing my mind! Thanks for this.

[@myroncook]

Glad you like them!

[@xenocampanoli815]

Please keep at it Myron. We get a lot out of these. We were started with Nick Zentner's stuff and we are real geology fans now, my wife and I. Thank you.

[@loueckert4970]

Myron is so enthusiastic, you must listen to his stories. I love to learn this way.

[@twod0ves]

I'm so glad I found this channel. Believe it or not finding straightforward educational videos about geology online is a lot harder than you would think, and you nail it.

[@macswinford3315]

I'm a geologist in Ohio, but I worked in Wyoming as a young man. I have never touched the great unconformity. It's on my bucket list. This video is enthralling. It's been 45 years, but I have got to make it back the Wind River Canyon and see the surface that has alluded me.

[@RogueReplicant]

* eluded, not alluded

[@exospectral6930]

I love to see people loving what they do. And you say you wish we could be there, I do too. But for those of us who have no prospects of ever being able to travel to these kinds of places, these videos are a huge gift. Thank you.

[@FredPilcher]

Thank you, Myron!! Best geology-for-laypersons channel on KZbin!

[@shibity]

I love this. This is the type of learning that stays with you forever. Thank you for sharing, been enjoying your videos lately.

[@susanbone3634]

Another inspiring and heart-warming video. You and the photographer bring all this fascinating information and the story of Earth to us with generosity and kindliness. It's very appreciated. Thank you.

[@MikkellTheImmortal]

I gotta say, you're enthusiasm for geology is a big reason I watch your videos. That and the geology of course.

[@dougsrepair1060]

Your geology knowledge is unquestionably thorough. What makes it so interesting is the visual evidence along with your ability to explain it so we can grasp it.

[@davidleelaguire1313]

Thank you Myron! Your programs are wonderful and take me back 50 years to my geomorphology classes in college, which I loved. Dave L - Michigan

[@myroncook]

Wonderful!

[@SuzaWoof]

Super excited whenever I see a new upload from you! Thank you for taking the time and effort to gift us with such fascinating videos that educate AND entertain us all! Loved it!

[@davidwalk9266]

You do an excellent job of explaining the Geology in all of your videos. Nice to see the surface manifestation of the processes. I am 50 yrs in the oil exploration business (geologist) and I enjoy what you are doing

[@myroncook]

Thank you very much!

[@thomasrobbins1171]

Thank you Myron. The pages of a book to years analogy was a stunner. The apparently unknown, and possibly unknowable, cause of the start and end of snowball earth is a humbling thing, isn't it?

[@earthjustice01]

I think the probable cause is the evolution of photosynthesis, which took a lot of carbon dioxide out of the atmosphere, chilling the planet.

[@yung_calibri]

Myron, you do a great service to the profession of teaching.

[@robertyauger1025]

So thankful I stumbled onto your videos. I love geology, but I am not a field trained geologist. I am from the east, but love going out west. It's often difficult for me to translate the things I read about to what I am seeing in the rocks - you help to visualize it and understand it. I find the structural and historical geology just fascinating, not to mention the beautiful scenery. Thanks so much!

[@myroncook]

Awesome! Thank you!

[@dougbates8018]

Thank you Myron for sharing this presentation about the great unconformity in North America. This same unconformity is exposed beautifully in the NW Highlands of Scotland, where we have three unconformities on display, two below the great unconformity and then the most prominent one being the Great Cambrian Unconformity. There is Archaean basement of Lewisian gneisses forming an irregular unconformity of hilly terrain over which most valleys were infilled by the Mesoproterozoic conglomerates sandstones and shales of the Stoer Group which has varied thickness up to nearly 5,000ft. The Stoer Group is then unconformably overlain by the more extensive and distinctive Neoproterozoic Torridon Group, a 12,000 to 18,000 feet thick sequence of cross-bedded pebbly sandstones that deposited on the eastern terrain of the Laurentian Plate 1,100 to 960 million years ago… before the ‘snowball Earth’ epoch. There followed a long period of more than 300 million years of continuous erosion as that whole terrain was tilted westwards by about 15 degrees and completely eroded down to sea level… The Great Unconformity. We then see a beautiful white Cambrian quartzite formation laid down on this angular unconformity, followed by increasingly fossliferous quartzites and sandstones, then the thick limestones of the Durness group deposited in the Iapetus Ocean… That whole terrain was later tilted back to the east as continental collision with Baltica occurred and the eastern edge of Laurentia was driven under the edge of Baltica forming great thrust sheets with magnificently displayed and geologically historical imbricate thrust structures along the Moine Thrust Belt, where now the Torridon sandstones are almost horizontal and the plane of the great unconformity at the base of the Cambrian quartzite is inclined eastwards at about 15 degrees. If you’ve never visited Scotland, it’s well worth a visit just to see these amazing geological features, and a good many other reasons besides.

[@myroncook]

Thanks for the info!

[@gregjones2217]

Thank you again Myron. I don't know how many times I drove the canyon. I learned a lot today.

[@JonnoPlays]

This video is great. Thanks for putting in the work!

[@SueFerreira75]

Thanks for your videos, Myron. In my last year at school, 60 years ago, our new biology teacher, also a geologist, took my class out to look at the rocks around my town in England. I was fascinated and fell in love with the discipline, but was already headed to medical school. My work as a physician was a joy, but medicine takes over your life, so now in my retirement, I am enjoying my return to learning more about our geological history with your assistance.

[@TheVaga9]

One doesn't have to care about rocks to listen this man teach! He has the greatest gift a human can have. He is a teacher and loves his subject!

[@RosedaleJimmy.43]

A great presentation! It’s very interesting and you explain everything in an enjoyable manner, as you do in all of your presentations I’ve seen so far. 79 and still growing 😉

[@elizabethfierro8104]

I just stumbled across your channel a few days ago and am thrilled to have found it. I watch Nick Zentner's geology videos but your hands on is fantastic to help me understand the concepts. I am not a geologist and your arrows and lines to show where these things are make a huge difference. I can hardly wait to watch all your videos. They have made a big difference in my understanding in just this short time..

[@myroncook]

Awesome, thank you!

[@RobertLScott-br4uy]

Living and working in Montana and Wyoming and watching your series I wish I had studied geology instead of design engineering. Great educational tour of one of my favorite canyons

[@Rob-pt8dh]

Thank you for putting in all of the effort to create this video! Most KZbinrs would have just looked for some pictures on google and used those for examples, but you actually drove hours out into the field to give us a better look. I felt like I was back in college listening to a lecture and learning something new. I now have a better appreciation about sedimentary layers and how they're created.

[@myroncook]

Thanks!

[@gardubois7194]

Thank you! I’m new to your channel. I fell in love with geology as a commercial river guide in Grand Canyon in the 70’s and 80’s, observing the book of time laid bare in the canyon walls. Simply understanding the processes of the earth for some reason fascinated and delighted me and continues to do so. I fully relate to the love and joy of discovery and understanding and the inspired awe that infuse your being and the videos you share with us. I’m eager to begin delving into all what you’ve shared. Again, thank you!!

[@rosiealaniz3205]

Love your wonderful delivery, but your enthusiasm and excitement is what’s keeping coming back to your videos. Just finished my first geology class and i understand most of the concepts of your lesson! Going back to Utah and Az this summer for rafting. Retired female hispanic 68 years old. Thank you, professor!

[@myroncook]

Thank you so much!

[@jimjr4432]

Thank you so much, again for the great geologic adventures. So, thanks to your video and great lectures, I briefly scanned Wikipedia and am I guessing correctly that the snowball earth to which you refer is the Baykonurian glaciation? 547 mya? Love your videos and if I had geology from you in 1967 I would have not been a forester. Merry Christmas, Jim

[@myroncook]

I mostly referred to a period from about 800 to 600 million years ago when at least three major glaciations occurred. The three biggest ones we know of are named the Sturtian, Marinoan, and Gaskiers. There was also at least one about 2.5 billion years ago.

[@MangySquirrel]

Hey Myron, i have to tell you something really cool - a connection I’ve had to this video. I did a hike in Banff, Canada up to Helen Lake back in 2016. Up at the top of our hike after a steep long climb, we saw what we’re told is a field of stromatolite fossils that are 500 million years old. Those stromatolites must have formed when all off North America was under water in shallow sea conditions. Those maps you showed at the end of the video finally visualized and brought it together for me. I took some photos there as I just could not get over how I was walking on 500 million years of history - the world before the dinosaurs, as you’ve shown in this video. It was a beautiful formation that i captured. Thanks so much for your video, looking forward to seeing more.

[@myroncook]

Fascinating story !

[@higherresolution4490]

It's equally fascinating to think that stromatolites arose about one-and-a-half billion years ago. The first aerobic bacteria on Earth, they are responsible for having killed most of the anaerobic bacteria and archaea that lived without the protection of water or earth. Shark Bay, above Perth in Western Australia, still has a healthy population of stromatolites. Probably the most robust population anywhere in the world. A tiny pond relic of an inland sea in central Mexico has stromatolites still living on its edges. Stromatolites are found in other places too. Without their oxygen, life would never have evolved beyond single-cell morphology. But you were so fortunate to see in the rock shale in Canada was a record of the great Cambrian explosion.

[@smellycat249]

I enjoyed this video a ton. Thanks for the great explanation of the great unconformity.

[@myroncook]

Glad you enjoyed it!

[@trashguy]

These videos are great, thank you for making them.

[@justme7415]

I've always been fascinated by the Great Uncomformity and was a bit confused about way it was. Your video clarified it immensely. Thank you! I love your long vids.

[@myroncook]

Glad it was helpful!

[@pamfrank3962]

Thank you for sharing your knowledge. You make this discovery interesting and informative. Magnificent

[@hestheMaster]

An amazing walk through time with you professor. I wonder if they know for sure how many times the Earth was almost totally covered by ice? Kudos to your brother on the excellent drone work!

[@myroncook]

Three times from about 800 ma to 600 ma ago. Also way back about 2.5 Ga ago. Could have been others too

[@davidhollenshead4892]

@@myroncook How many different worlds would you estimate this planet has been ??? [ Snowball Earth is a distinctly different type of world, just as the Carboniferous was so very different it almost belongs in a Science Fiction Story, compared to the world we live in....]

[@baylorsailor]

And we will be covered in ice again as soon as we finish melting from the last ice age. 😊

[@JM-zg2jg]

@@baylorsailor Hmmm. Maybe. There weren’t any humans or human industries the last times around. This time at least, it may be a lot longer before it happens again.

[@peggygilmour8905]

@@myroncook People seem to underestimate glaciation. Here in Missoula, they write everything off as the late Wisconsin glacial lake, but there were earlier episodes of glaciation that haven't been mapped that created U-shaped valleys. There are glacial moraines along the sides of valleys where there are many gravel quarries and layers of till and loess.

[@Walczyk]

i’ve been glued to this video for 17 minutes straight. there is so much knowledge i’m picking up, incredible content!

[@bettywing52]

I did a mountaineering school for 6 weeks in the Wind River Mountains and Popo Agie Wilderness in the Seventies, hitchhiking from NJ to Lander. Lots of it was in the higher elevations, and I remember walking and climbing a lot of that granite surface covered with the lichens. I had found some olivine there, like the NASA Curiosity team on Mars. Thanks for all the "Wyoming." You're a terrific teacher. I live on the Driftless in Wisconsin, and hunt fossils in the local cuts and quarries these days. The deep time of the earth right in my hands.

[@myroncook]

I like your story...interesting!

[@catherineladd5300]

I am loving this channel. The combination of actual sites, drone footage and then the chalkboard for explanation of what we have seen is immensely helpful for visualization of such grand concepts of time. Great work!

[@maryseeker7590]

I drove down that road once and was baffled and excited by the rocks. How nice to get a geologist tour with a drone of this place!

[@denniswilliams7913]

Nice work,,easy to understand

[@grandmamichelle6753]

Thank you for another great lesson. The time spans can be hard to comprehend, but your explanation is clear and concise.

[@myroncook]

You are welcome!

[@johnlittle8975]

This is the first of your videos I've seen, and I have to say I've found my Bob Ross of geology. I'll be watching the rest!

[@Earthgazer]

I'm liking your videos more and more. Love the drone shots, the beauty of Wyoming, and the effort put in to the videos in general. I studied geoscience in college, but didn't do nearly enough field work in retrospect. These are like the geology version of the old wildlife documentaries I used to love!

[@myroncook]

Glad you like them!

[@HawthorneHillNaturePreserve]

Sir, you are such an amazing educator! You have such passion, and it’s contagious. Thank you for being so generous with your knowledge and for making and sharing these amazing videos.❤

[@shaneflickinger]

Wow, so much info packed into this video, I think I'm going to have to watch it again to absorb it all. Thanks especially for the book analogy on deep geologic time, as personally, I feel that is one of the hardest things to grasp about geology. I do have to ask seeing you wear the UWYO alumni hat; it makes me wonder if you taught professionally during your career or if it is just something you started with this KZbin channel. Either way, I'm glad to be a student now. Thanks Myron.

[@myroncook]

Got my bachelors from UW

[@carlosorellana5154]

Thnx for what you do.

[@maximbudnick]

So much work goes into this and it does not go unnoticed! Thank you so much for your brilliant educational videos, please keep them coming. Also thanks for the Canadian Shield mention as its my home rock and close to my heart.

[@myroncook]

Thank you very much!

[@artofplanets]

Thank you for the interesting video! With your help I am piecing together a lot of things. I can’t help but ponder all the things you must have learned to be able to evaluate geological features in a way that produces a consistent reliable story.

[@midori4352]

I love your videos so much! As a former biology person, I wish I got my degree in geology! No one was talking about it when I grew up outside of a rock and gem summer camp I went to for a couple of weeks (which I loved and excelled at). Local attitudes just didn't support women going out in the wilds on their own, even just for research. I hope women do get into geology even more than they are already! It is such a great field and I have never met an unhappy geologist! :D Thank you for sharing all your knowledge!!!

[@Siralantoon]

I have watched this fascinating film 3 times now and something crystallised this time. I managed to glimpse just the edge of an understanding; the slightest comprehension of the immense amount of time enfolded within these majestic rockscapes. What a gift to give me.

[@myroncook]

Thank you!!!!

[@Siralantoon]

Thank You Myron! Your passion is infectious and has focused my passing interest in Geology into an active pursuit. I started reading books on the subject inspired by watching your always interesting films. When you put your hand on the 'Unconformity' and a Billion years of missing history it sent a cold shiver down my spine.. I would like to express appreciation to your pilot for the amazing and enlightening drone sequences. They capture your words and help me to experience these Landscapes in a visceral way.

[@VIKASHSINGH-hf3kt]

I am Vikash from INDIA and just 3 yrs ago, I married with SCIENCE after watching CARL SAGAN' s Cosmos a personal Voyage series and then i got intrested in ASTRONOMY then gradually, the chain of knowledge of science make me intrested in Cosmology then Physics, Biology, Evolution, Origin of life and then Paleontology and now GEOLOGY. i am getting extremely intrested about GEOLOGY from few months and clearing my douts related to Earth's geological history of it's formation of rocks, minerals etc.. PLS KEEP UPLOADING YOUR VALUABLE VIDEOS AND DON'T STOP

[@myroncook]

Neat story!

[@prototropo]

I love your enthusiasm, Vikash! The world needs your energy and joy for science.

[@RNemy509]

Fascinating explanation and very informative! I really enjoy this video. I'm certainly no geologist but I could follow along easily. Thank you! This is why science is awesome

[@myroncook]

Awesome, thank you!

[@mikefromflorida8357]

Somehow the earth warmed its self up even with no one here burning fossil fuels.

[@greenevrgrn1249]

These people don't believe in Biblical Doctrine! The World is not Millions and Millions of years old.

[@hardrocklobsterroll395]

Since the arrival of life multiple mass extinction events have come from macro scale changes to the composition of the earths atmosphere and oceans caused by certain organisms. At one point it was actually the production of oxygen that caused the extinction. Saying this is to say man made climate change is no different than algae induced climate changed and that killed upwards of seventy five percent of all life on earth. Food for thought

[@martincotterill823]

Thank you very much, Mr. Cook, that was an amazing talk. Please continue your work, the deep geologic history is truly fascinating!

[@harshyadav1942]

Wow, it was such a great session. Learned , Loved and enjoyed every second of the lecture. ♥️

[@myroncook]

Glad you enjoyed it!

[@morganssonggmail]

Fantastic job, Myron. I shared your video on Mastodon. What a great storyteller you are. I am in absolute awe!

[@kaldrazadrim]

As someone with no interest in geology, I watched this entire video. That’s how engaging and informative you are! 10/10

[@jacobAvila-j7s]

I just wanted to say that I absolutely love your videos. I'm an avid lover of history and you have drawn me in to the world of geology. I feel like it's still my love of history just in a different form lol. Your passion and excitement for what you do is truly infectious. Your knowledge is a gift thank you sir, I happily subscribed and look forward to watching more of your content.

[@Chiamex]

It's just so amazing learning and thinking about earth time, especially on today Earth Day 2023. Thank you so very much.

[@bessiehadley3497]

I am so glad to be retired & now able to watch shows like this & keep on learning more about things I was always interested in, but had no time to study. I grew up in the USAF & we lived in Texas (Galveston), Louisiana (now town of Sulfur), Florida (Coral Gables, outside of Homestead by Everglades), Kansas twice (KC & Salina), Washington state (Vancouver) & Arizona (Phoenix - where I graduated college). But I am a 5th-generation native Californian & now live in Sacramento County & CA is always first in my heart. I have seen geology & man's history across it in all these places. (We had replace our yard's sand & topsoil twice a year in FL because we lived on a coral shelf - lol.). We could see Mt St Helens from our backyard (in 1965). Went to Yosemite as little kids. Saw the remains of the wagon trails across the Kansas fields (next to the highways). Went rock-hounding in Arizona. So beautiful there - God is the best gardener there is. Worked two summers while in college at Yellowstone Nat'l Park & loved it. Thank you for easily understandable field trips to fascinating places. Like I said - I love to keep learning more - makes me feel young & energetic to see someone who loves the work that they do, like you do. Thank you.

[@myroncook]

Very interesting history and thank you for your kind words, Bessie!

[@rwg727]

Thank you Myron for your videos. I really like when you go out to the field and show what you are talking about. Especially when you later superimpose the different colored lines on the video. Thanks for expressing and sharing your awe, appreciation and joy of this amazing earth 🌎!🙏🏼❤️

[@TheMoofy8]

Wow, I appreciate your teaching pace and variety of shots with the drone! Thanks so much! Fascinating!

[@invictusfarmer7188]

really glad i stumbled upon your channel. you have a remarkable ability to explain things in a thought provoking and interesting way. thank you for the time you take doing this.

[@myroncook]

I appreciate that!

[@invictusfarmer7188]

@@myroncook if i had to compare your style of educating id have to compare you to Marty Stouffer. you are without a doubt the Marty Stouffer of geology haha. he was always one of my favorite wildlife special on tv when i was a kid.

[@robertoraupp]

I'm an agronomist from southern Brazil. Your channel is sensational. Thank you very much!

[@ericl3568]

2 Billion Years! It is hard to imagine. Exciting!

[@gabrielford3473]

Fantastic stuff!! Thank you for making these available!!

[@tcmoore5970]

Myron, you and Nick Zentner are my heroes

[@Zt3v3]

I'm a fan of trivial pursuit. I like to learn about new things; you made this very interesting friend. I learned quite a lot. I'm not a geologist or a rock hound, but I enjoy content from anyone who truly loves the topic they're covering, and you obviously love geology. Thank you.

[@TillyOrifice]

What a marvellously clear and vivid description of the geology associated with the Great Unconformity.

[@MeteOguc]

These are “lectures” that I know I needed for many years, thank you!

[@Thepc425]

I loved science history and geography as a child and still do, I imagine if you would ever teach 12yr olds you would blow their minds away. You make rocks enthralling and alive! ❤

[@GeoffreyPeart-Tang-rd9mo]

Thank you so much for what you do and the great effort and enthusiasm for not only geology, but also for appreciation of life. Greatly appreciated

[@redhammervirtual3372]

Great work explaining the geology of the great unconformity. I appreciate how you explain and show examples of what you are explaining. Keep up the great work!

[@monkofmayhem1373]

Fascinating video, i live in northern ireland, as you know we have the giants causeway. I hope you get a chance to visit it, i think you would appreciate it. Its jaw dropping for the layman too.

[@joewonsettler6439]

Myron, thank you so much for another wonderful video explaining how our world was formed, in such an easy to understand manner!

[@myroncook]

You are very welcome

[@sandieman]

So good! Would love to understand Yosemite like this.

[@jeremiah_dyess]

I been here since some of your first posts Myron, I send your stuff to my people, on your word. I'm glad that you are here to teach us about mountain formations, not just below sea-level but above it as well.

[@myroncook]

I appreciate that

[@bob_frazier]

I'm relaxing by my fire watching a world class geology presentation, and it's free. What an amazing thing, a simple thank you seems inadequate. Fantastic!

[@myroncook]

Glad you enjoyed it!

[@imagine4793]

Thank you for this video...purely enjoyable and educational... could feel your own awe as well...

[@rockweiler777]

Thank you, sir, for a fantastic road trip through time! You share your abundant learning with panache, and it's a joy to witness.

[@lutzderlurch7877]

You are really oozing with a sense of wonder and a passion for geology. Plus a gentle and pleasant demeanor, smile and style of presentation, without drama. Thank you kindly for your video!

[@myroncook]

So nice of you

[@lutzderlurch7877]

@@myroncook Credit, where credit is due :) I consider myself somewhat science curious and love documentaries, but already learned several new things from your content. Thanks, for sharing your knowledge, and keep on rocking ;)

[@charleslord266]

Myron, Your channel brings be back to my college days. I was a Civil Engineering student at Clemson but during my senior year I loaded up on Geology classes just because I found them and the faculty to be a lot of fun. The Army had me after graduation and life didn't allow me to obtain another degree in Geology. We have a very interesting place in Maine. Our house has an outcrop of metamorphic rock that is quite beautiful and scratch marks from the last glaciation. This video reminds me of that glaciation during the great non conformity and what the land may have looked like just after and before the sea level rose up. If you ever decide to come east for a lecture/video please come and stay with us.