How Snowball Earth Leveled Mountains and Created the Great Unconformity
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- Опубликовано: 19 май 2024
- Hike with a geologist and see spectacular exposures of the Great Unconformity and appreciate the profound history of earth.
Thanks to Elgin Cook for being the drone pilot; check out his channel • Sunlight Basin - Volca...
Paleogeography Maps Copyrighted by Colorado Plateau Geosystems Inc. : License # 5120
field geology, Wyoming geology, Wind River Canyon, Clarks Fork Canyon, Utah geology, Antelope Island, Metamorphics, granite, Homeschool Earth Science Education
#geology #myroncook #wyoming
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.
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!
Excellent presentation!!!!!!
Isostasy?
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?
@@halweilbrenner9926 Actually, the Isostacy Apostasy!
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!!
Thank you for the feedback
The past is not observable
@@dudedude2207 It so is!
@@jeremiah_dyess how?
@@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?
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.
Glad you enjoyed it
I'm intrigued by doggerland , now under the English channel. During the younger dryas, ocean levels were over 150 meters lower.
@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.
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.
That's because of all the Scotsmen moving to the South@@markdoherty9205
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.
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.
I sing this to myself all time! ruclips.net/video/rGa9IvpooKI/видео.html
Near Peggy... Single??
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!
Study the Thunderbolts Project for another twist in the geologic science.
Open your mind. Move outside of standard classic geological box.
@@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.
The 'open your mind' gives it away.
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.
I really enjoyed this history, Dale. All the best
And his explanation isnt correct. The religious interpretive spin is hard.
This 82 years old engineer is your latest student. Thanks, Myron.
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!
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.
Love this
Myron is so enthusiastic, you must listen to his stories. I love to learn this way.
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.
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.
* eluded, not alluded
Over 45 minutes with Myron! Awesome. Thanks Myron and also thanks to your photographer. Great work.
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
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.
Thank you so much for inviting me along, on all your RUclips 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.
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?
I think the probable cause is the evolution of photosynthesis, which took a lot of carbon dioxide out of the atmosphere, chilling the planet.
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.
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.
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.
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.
Glad you like them!
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
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.
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.
People think geology is a dry subject but the geologists I know of are some of the most enthusiastic and passionate folks around!
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!
Awesome! Thank you!
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.
I like your story...interesting!
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.
Fascinating story !
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.
Thank you again Myron. I don't know how many times I drove the canyon. I learned a lot today.
Thank you, Myron!! Best geology-for-laypersons channel on RUclips!
I'm an agronomist from southern Brazil. Your channel is sensational. Thank you very much!
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..
Awesome, thank you!
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.
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!
Three times from about 800 ma to 600 ma ago. Also way back about 2.5 Ga ago. Could have been others too
@@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....]
And we will be covered in ice again as soon as we finish melting from the last ice age. 😊
@@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.
It's just so amazing learning and thinking about earth time, especially on today Earth Day 2023. Thank you so very much.
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!
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!
Thank you for another great lesson. The time spans can be hard to comprehend, but your explanation is clear and concise.
You are welcome!
Myron, you do a great service to the profession of teaching.
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
Wonderful!
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
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.
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!!
"... 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. :)
I'm glad you felt the awe!
As someone with no interest in geology, I watched this entire video. That’s how engaging and informative you are! 10/10
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.
Glad it was helpful!
I enjoyed this video a ton. Thanks for the great explanation of the great unconformity.
Glad you enjoyed it!
i’ve been glued to this video for 17 minutes straight. there is so much knowledge i’m picking up, incredible content!
I gotta say, you're enthusiasm for geology is a big reason I watch your videos. That and the geology of course.
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!
Glad you like them!
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 😉
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.
I appreciate that
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 🌎!🙏🏼❤️
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
Neat story!
I love your enthusiasm, Vikash! The world needs your energy and joy for science.
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 RUclips channel. Either way, I'm glad to be a student now. Thanks Myron.
Got my bachelors from UW
Thank you for putting in all of the effort to create this video! Most RUclipsrs 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.
Thanks!
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.
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!!!
I watched again. I was very impressed by your explanation of the granite shelves at sunlight creek bridge. I must admit to being more of a paleontologist than a geologist. More of a petrified wood rat than a rock rabbit. Thus your videos have been very helpful and presented in a very "real" and personal way. Plus your in my part of the world. Thank you and happy holidays.
Thank you, Greg. All the best
Thank you very much, Mr. Cook, that was an amazing talk. Please continue your work, the deep geologic history is truly fascinating!
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
Thank you very much!
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.
Thank you very much!
Fantastic job, Myron. I shared your video on Mastodon. What a great storyteller you are. I am in absolute awe!
Hey just found your video and I wanted to say thank you very much for making it. I found it fascinating and it provided further insight for me personally into Earth's history
Glad you enjoyed it!
Wow, I appreciate your teaching pace and variety of shots with the drone! Thanks so much! Fascinating!
Thanks, good stuff.
I had the privilege to know another renowned Wyoming geologist, Charlie Love, when he taught at Modesto Junior College in the late 60s. He led a group of students on a backpacking adventure to Yellowstone where we ventured off trail to a remote active thermal area.
Really is lots of good geology content on RUclips now. I'm so glad that actual geologists are sharing their expertise with us. This was really interesting. Thank you!
I may not 'Feel' the history through the screen , but you have conveyed a' Sense' of it. Thanks.
Your sketches are a big help to understand what we are seeing at the places you go to and drone footage.
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
Excellent video!! Lots of amazing info here. Provides many glimpses of earth's deep history. It's hard to imagine what was going on millions of times longer ago than a human lifetime but Myron Cook gives us some good pictures of it. Thanks, Myron.
Glad you enjoyed it
I've been searching every few months for about 2 years for a good geology video just like this one and here it is thanks to you. Liked, subscribed and very grateful! Thank you, it was a pleasure to watch and I will watch again for sure. The most valuable thing I learned was your explanation about the fornation of metamorphic rock, just awesome, another process learned.
Thank you so much, Myron. Looking forward to the video on sedimentary structures and, probably, on sedimentology of one of these great outcrops. Thank you once again. You are amazing.
Thank you for the wonderful knowledge you so generously share.
I think your tireless travels through diverse terrain not only benefited us, but you as well. Seems to me you are a little trimmer. Please keep these wonderful
Every summer from 1972 to 1976, as a teenager, I spent camped in the Bighorn Basin collecting fossils in the Willwood with expeditions from Yale, and later from Cretaceous rocks near Billings with Harvard. These places, images and formation names bring back very fond memories. So glad I found this channel. Thank you
Again, thank you for this. I studied geology a bit in college and went on several mind-blowing field trips with super smart professors and TA"s. It was so fun and interesting, just like this video I just watched. I've subscribed to your channel and look forward to more of you field trips.
Fantastic!
You got a passion for geology. Deep time is mind boggling.
I love this detail and pace of this video (I'm not all that smart or learned, so I appreciate you going into great detail and pointing each part out so clearly.). I've watched this twice already.
Thank you, sir, for a fantastic road trip through time! You share your abundant learning with panache, and it's a joy to witness.
Myron, as a geo major 1984, I appreciate your talks. You remind me of Larry Demott, my geo professor and his classes. Geology does put things into perspective, doesn't it? And thank your spouse (who we all see walking behind you in the other room during this video) for supporting your sharing of things geological with others.
Fantastic stuff!! Thank you for making these available!!
Thank You Myron Cook...I give you a thumbs up even before I watch what you have to say👍
I want to learn and you are a wonderful teacher. ... After watching, WOW, those vertical tubes Scalithos!!!
You are a big breath of fresh air that opens my eyes!!! Hope you can always keep it humble with your polite delivery of valuable information. TM
Thanks for watching
Thank you Myron. The Cambrian and first life has always been fascinating for me as well.
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!
Really appreciate the work you put into these presentations, and your love of the subject abounds. Looking forward to future posts.
Rewatched learning more each time. The grate unconformity amazes me can't get my head around that. thank you
I have a BS and MS (with a 4.0 GPA) in geology and even I learn a thing or two on this channel. The lessons are top shelf, and the accompanying videography illustrates the concepts in ways that lend powerful clarity. Highest marks!
Planet earth is a beautiful place. Thank you for sharing your joy!
It really is!
lessons coming. Again, THANK YOU!
This is the first of your videos I’m watching and I just had to pause and mention how well you explain all this. It’s like getting a university lecture, but in a way that a novice can follow along. Brilliant stuff, going to subscribe now!
Awesome! Thank you!
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!
My mind is blown! Thanks for the trip Myron.
You remind me of how I was so excited, in my formative years (up until my second year of college, ages ago) about geology. Had I met anyone as excited as you are, I doubt I'd have changed my major and pursued the entirely different path that wound up being my life. Thank you!
What a marvellously clear and vivid description of the geology associated with the Great Unconformity.
Thank you so much for making these videos Mr Cook!!!! This is really great information!!!
Glad you like them!
FANTASTIC content! I'm a retired professor of anthropology, but many decades ago, when I was an undergraduate in anthropology, I did two Minors Geology and History and I was at one point quite perplexed about whether to go geology or anthropology. Great to see that historical geology lives on!
Thank you so much for producing your videos . The knowledge is wonderfully presented . So many other documentary have exaggerated , dramatic and noisy elements, which do not add to the videos . Your production is excellent. I studied geology at university , many years ago and I’m enjoying all of your videos so much . Christine ( in Australia)
I love your descriptions of early earth. I am ready for what's next!
Best Geology lesson I've seen in a long time!! Thank you.
Myron, Thanks for your very informative videos. I always wanted to know about your expertise.
So nice of you
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!
So nice of you
@@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 ;)