I've had a few ask about the impact crater Chicxulub and the formation of cenotes. The limestone which the cenotes formed in was deposited AFTER the impact. However, the impact most certainly would have fractured the older underlying limestone which could enhance the future development of cenotes in later younger limestone deposits. There is evidence that there are more cenotes along edge of the impact where massive fracturing and faulting occurred. It is important to note that there would be cenotes and other karst features without the impact. All limestone becomes fractured through time and also has bedding planes that allow for the fresh water to flow through and dissolve the rock. Bottom line; the impact created more fractures than normal which lead to the formation of more cenotes (much later) than without the impact. A couple of viewers have informed me that I pronounced the Floridan aquifer wrong....I said it as "Floridian"...oops
For that matter, it is not SUB-sid-ence (sid like sit = no-no). The correct pronunciation is sub-SIDE-ence, from subside or subSIDE with just -ence tacked on. The word come from subside, not from subsidy. Google "robot to pronounce subsidence" and the computer does all the example work.
Mr. Cook, as a lifelong resident of the State of Florida, I encourage you to pronounce the name of our aquifer in whichever manner works best for you. Those who choose to belittle others who have learned words and names by reading text in the absence of hearing them pronounced are a bit shameful in my opinion. Thank you for what you do. I hope you had a great time in the Canyons.
"Floridan" is what I've usually heard it called in the mining industry here, but either way is acceptable. Floridians are sometimes called Floridiots too.
01:44 The way you describe the beauty of the canyon and its geological history is truly captivating! Your ability to connect the stunning landscape with deep time and natural processes is inspiring and makes me appreciate the world in a whole new way. Thank you for sharing this incredible insight!
This is the kind of material I love to find online, great and fun way to learn about our beautiful planet! I love this and the way is presented. Thank you so much for sharing!
Thinking about deep time in terms of geological features is such a humbling thing. My background is in astronomy and astrophysics, so ive mostly been humbled by the sheer size of the universe. With geology, I have another direction to be humbled in, but in this case its with time instead of space
Deep time - Yes, that concept was first formulated in the 1700s and pushed by atheist philosopher David Hume, along with The Comte de Buffon in France, and Erasmus Darwin (grandfather of Charles), to name a few; but what evidence did they have?.
Sobering thoughts. As a Floridian for 51 years, I always thought Florida was just a big sand bar. He explains that the sporatic sink holes over our limestone strata (2500' deep) will expand over millions of years. Right now more coastal high-rise condos are experiencing foundation settlement causing costly damage to buildings. 13:06 He is suggesting parts of Florida will eventually collapse under water!
Yeah Florida is in the long term doomed to sea level rise and karst subsidence collapse though given time as the active margin in the Caribbean is expected to develop into the Atlantic Florida will likely rise again in some form or fashion millions of years from now. In the more short term as that freshwater aquifer is both being overdrawn with rising sea levels seawater is infiltrating it. Though if we want to get into sobering consequences and the likes compared to seawater a bigger issue for aquifers is Florida's extremely lax and loosely followed regulations of sewage and septic systems as the porous rock means those contaminated fluids get into the aquafers and mix with agricultural run off ultimately flowing out to sea where they feed massive eutrophication algal blooms and red tide events visible from satellites. Horrible for fishing and tourism.
@@Dragrath1I live in Titusville. Seems every month there’s a warning to boil water, and sewage has been dumped in Mosquito lagoon and Indian river. Disgusting.
In fact.. The high rises were in South Florida. They were not constructed with the correct Footings, pilings and foundations. and most were built with underground parking... Not a great Idea in areas that get tidal surges. As an Engineer, I see the same poor construction all the way from Florida to NY... Florida seems to be the bulls eye for those who are politically motivated.. Amazing how all these Florida stories seem to stop at the State lines of Georgia and Alabama. I don't think we need to worry about 1 million years from now.. the earth is constantly changing. and man's may destroy the earth before natural force do.
I live here in Florida, and made a well at a ranch a while ago. At first we only dug about 30 feet down and the water we got out of it had an extremely high concentration of iron. If you filled a bucket with water and left it out for a few hours, it would turn completely red and opaque. It wasn't until we took the well deeper that we got clean water. This was in the SW region.
@leecowell8165 Well I don't know if it technically is or not, but at least the water that comes out of here is freshwater, and that's how all the houses in my area get water too.
We called that egg water, lol, smells like sulfur, tastes nasty, turns all your toilets, tubs, and sinks orange, as well as your hair. You pulled from a shallow, surface level source that’s pretty much from ground water. Everyone along the coast uses it and use water filtration and softeners. You can’t really drill too deep or you start getting salt water inclusion. I live about a mile from the Indian River, which is brackish. Tween the Indian River and the Atlantic is Cape Canaveral. Our well is 150 feet deep and the water is a little better. You can’t really drill drink it w/o filtering it, but it still leaves a rusty looking spot where the tub faucet drips. A little CLR handles it. We still have a water treatment system that removes iron, so it tastes better. Also, still not the aquifer. All that is on top of the limestone. But go inland, the Ocala area, and all down the spine of Florida, and the water is amazing! My parents had a horse farm between Williston and Bronson, and their well was 500’ deep. That water was exactly the same water that Zepherhills pumped up and bottled! Sweet, clear, lovely. That’s water that has filtered down through the limestone and into the aquifer. It’s said the reason the thoroughbred industry happened in Ocala was because of that calcium rich water. Right down the road from our farm was a place called Devil’s Den, an underground swimmin hole. We’d sneak onto the place, climb one of the live oaks that hung over the hole, and dive in. It’s a popular commercial venture now. But my mom would laugh and say ‘get out of my drinking water!’ when she knew we’d been swimming there.
I love your perspective on time and how you break down the changes between deposition, erosion, etc all in the same location. I started me geology journey watching you and it’s become a real passion of mine. I picked up a roadside geology book for my state and have learned so much
NÃO DEIXA BIDEN TRUMP OBAMA BUSH CLINTON ELON MUSK TODOS LIGADO A SHORTS AI ESTA O PONTO SER NOT E PUCHAR O FIO DA LIGAÇÃO DE CONTATOS ENTRE ELE EM ESTALAÇAO EM ESCUTAS #ACT
@@rocketscientisttoo _"Reality is that which, when you stop believing in it, doesn’t go away"_ - Philip K. Dick Seriously, this is science (and critical thinking, and deductive logic). Let's leave religions out of it.
@@rocketscientisttoo In my opinion, learning about geological history is a great way to gain a deeper appreciation for all the majestic beauty we find all around us. It's a great way to gain a deeper appreciation of all of creation.
Thanks for another wonderful teaching video. I would never have guessed the irregular positioned red rock in cliffs in your areas like that - what it looks like as founded so long ago compared to newer cases like Florida, and especially such visible ones as in Yucatan. I enjoy the things you teach so well, how to see what something looks like after such long and different lengths of form and change.
Myron embodies all the very best traits of scientists and educators, and none of the bad. No snobby elitism, no preaching marxism, just a dude with an epic beard, a sense of wonder, curiosity about the world, and really glad to share his immense knowledge with us .Top tier youtuber for sure, we're lucky to have him!
@@Kingzzxepic Lol man, I don't watch fox news, I've been a liberal my whole life. I've just seen a lot of marxism in academia, myself. I hope you have a really great day tho bro, being dismissive to people about things they know are true via their lived experience, is a big part of the sickness that has grown in the left, and why kamala lost, and the dem party is just done politically and culturally. Lets look to the future my friend, its bright.
Amazing! 20 minutes explanation of beautiful caves, cenotes, limestone dissolution and karst collapses - and then all of a sudden "no, that's not the case..."! Great trick to make amazing video!!!
Always enjoy watching your geology videos. This is right up there and answers lots of my questions about how different places in the world look strangely alike.
I’ve been a secret sub for the last few months…maybe even a year. I’ve been catching up. I’m just a curious gal feeling like a microscopic dot in Earth’s timeline. I love your content. What I have learned other than the physical aspects of our earth’s changes is that it has always survived. One way or another. Renewing its self and its life forms. And that earth will continue to evolve with or without us. We truly have been given the ultimate opportunity. Thank you for your content. 🌲
I’ve daydreamed about the geological similarities between the Yucatán and Florida more than once. It’s nice to know my time was not wasted and to learn the larger picture. Thank you.
That drone shot at 1:40 - stunning!! Really beautiful stuff, thank you for being so generous with your knowledge and taking us on these adventures with you.
Myron, your videos are (and should be used as) a masterclass in great education. This is the polar opposite of the canned curriculum approach that has been pressed into so many classrooms, an open invitation to be curious about the world, to indulge a little question about a funny-looking rock with an enthusiastic mentor. I’m thinking back to my years in the classroom (as a student), and it strikes me that I can’t even remember the names or the faces of some of the people who I spent an hour or more with for 180 days; in contrast, there are others who shine in my memory. In retrospect, the difference is about things like that little tree in your cross-section-a detail that I can imagine my former associate principal (when I had become a teacher myself) would have frowned at (followed up in the post-observation with a snotty remark about “distractions” and “lost instructional time). That little tree, and the moment of fun that let me relax for a second before wrapping my brain around a new chunk of information, is an illustration of how a great educator transcends above the bulleted list of learning objectives and creates a distinct memory that anchors its roots in my mind long after the actual details of the lesson have been assimilated into the greater tree of knowledge that grows around it (pardon my slip into the fanciful metaphor; yet another thing that I got an earful about during the bi-annual assessment when I realized that I could no longer abide by the direction my administration had acceded to). Apologies for the digression and the ridiculously lengthy comment, but your videos are an inspiration, and I hope that you continue to breathe life out into the world via your whiteboards, hikes, guided questioning, and wide drone shots for as long as it brings you joy!
Went digging on the net about sinkholes and found this map: Karst Map Of Conterminous United States 2020. Your videos on geology are always so fascinating Myron.
Wonderful videography as well as presentation by Myron Cook. This is awesome! At first, I was thinking some music could go behind the majestic canyon shots, but I enjoyed the silence as well!
Wonderful video, thanks Myron! I really appreciate your modern day examples and white board explanations- helping us see the story of this amazing canyon, and the processes of geology! ⭐⭐⭐
17:32 - Just south of Gainesville, Florida, is a feature called "Paynes Prairie". I have a buddy from school at UF who's father remembers the feature being a lake and a regular ferry service across the lake to Micanopy. On year a hurricane blew in, and the ground opened up, and the lake disappeared creating the "Prairie". Ranchers started using the land to graze cattle. After a number of years the sinkhole got clogged and the lake began to refill. The ranchers dynamited the sinkhole to open it up again. After a few years, a unique ecosystem evolved on the "prairie", and the lake began to refill, and the ecologists studying the feature dynamited the sinkhole to open it up again. Since then, the ranchers and ecologists have conspired to keep the lake from re-appearing...
Paynes Prairie is fascinating. Had a herd of bison at one point. It’s much bigger than people think, too. There’s been a huge drive to preserve it in the last 50 years, and most is now a protected state park. Which as you can imagine makes the ranchers angry. It’s visibly a sunken area. It’s not just relatively flat, it dips down too. There’s plants and critters out there that are nowhere else in Florida. It’s slowly becoming marshy again over most of it. And sometimes there’s a small lake in it. But it comes and goes depending on rain fall and sink hole activities. Still some feral cattle, horses, and hogs out there. Maybe even a few bison. Other notable features to check out in that area; The Devil’s Millhopper, a very deep and old sink hole you can walk down stairs into, on the Newberry side of Gainesville, and Devils Den, west of Williston, which is west of Gainesville. And next time you fly in or out of Orlando, look out the window and notice all the circular ponds and lakes; old sinkholes. Manatee Springs, Blue Springs, Wakulla Springs (found a mastodon skeleton in that one,) Ginnie Springs, and of course Silver Springs, to name just a few; all started as sink holes. We even have caverns. Called, uh, Florida Caverns, xD
I love your style of presentation. Rather than just tell, you ask us questions then guide us to the answers. Really effective teaching/learning method! (I've learned a lot from your videos.)
That was amazing. I have always wondered where those landscapes came from in places like China and Vietnam. Beautifully explained as always, Myron. Thank you for another great video.😊
I grew up in Florida. A few times in my youth I found sink holes in the woods. Carefully repelling down there are connnecting caves to explore if the water has drained out.
We exist within a perception of time that complicates understanding the timescales of large scale universal processes. You do a really great job of explaining geologic process while barely mentioning the time periods involved, in a way that makes it easier to understand.
Looks like I have watched all your videos, Myron. I think I'll simply watch them all over again. That's what learning is all about, isn't it? Apart from that, I have got used to your gentleness and dedication. ❤
Aahh! Thank you once again, Myron, for yet another 22 kicked-back minutes of entertainment and learning. It always makes me smile when I notice a new MC in my RUclips notifications.
Wow. I'm a Floridian. South West FL. Thanks for sharing your knowledge. My friends dive and have told me many great stories about these underwater caverns. I have seen many great videos of these underwater passages.
Hi, Myron, enjoy your educational and gorgeous videos so much, never to old to learn about geology (I am 75)...also enjoy your enthusiasm and warm heartedness. Happy Holidays!
What a great day! I just found this channel. I am a very old woman, not college educated but with an insatiable curiosity about the prehistoric history of our planet and a keen interest in the astro physics videos.
This is truly fascinating! Thank you for another excellent, easy to understand geology lesson, Myron :) I really enjoyed your explanation of how cenotes are formed. All the best from Brittany, western France.
The limestone poses a problem for Florida, especially Miami. In a period of rising sea levels (like now), Miami is impossible to defend with a sea wall; the rising sea simply goes under the sea wall through the porus rock. The salt water also takes out the freshwater lens that southern Florida depends on for freshwater. An interesting problem to say the least.
Sort of true but not completely. In fact, the USACE had plans drawn up just to handle that eventuality. Not all the rock under South Florida is the same. In fact even at the surface level it is not the same from place to place. The Biscayne Aquifer sits on top of that harder rock that the sea water would not enter. Depth of that rock ranges from ground level to about 240 feet further North ( Boca Raton ). Not at all hard to seal off using a curtain wall system. In the Miami area it is ~80 feet down to the imperious layer. But then you run into the problem of the Western part of the area. Again a curtain wall was proposed running along the C-111 Canal ( L-31N Levy ). But once you build those curtain walls, you have to figure out how you are going to get rid of the excess water that would build up inside them. We already have that problem in cases where we have a very wet Tropical Storm or Hurricane that decides to linger. At times we have seen 25 inches of rain in a 24 hour period. And I recorded in an NWS rain gage a 2" rainfall in 15 minutes. Our system is only designed currently to handle 3/4 of an inch in 24 hours. So if a curtain sea wall was built, Miami would still face flooding just it would be from fresh water and not salt water. And to handle that, again the USACE had plans. Large Pump Stations along the coast where the rivers and creeks ( now canals ) drain currently.
As an aircraft engineer in The Netherlands this stuff is non of my business but i find your sharp eye on geologic clues of historic events in nature fascinating. I'm sold on your geo-video's.
Thank you very much, Myron, another lovely, interesting video. I was thinking of an underwater landslide, the red layer looks very turbulent. I would never thoght of karst, fascinating!
Great video as always, Myron! I’d love to see you cover the Appalachian Mountains in a future video. There’s so much fascinating history and geology to explore there!
The only sad part about this video is we will not be here to see the beauty imagined in another 5k to 1M years from now. Excellent episode, thanks for sharing.
I have now watched all of your videos. What a wonderful treasure trove of beautiful landscapes, with a fascinating narrative explaining it all. I am an Englishman, and way back in the nineties I drove thousands of miles in the midwest. I was captivated by the geology and I shall never forget it. Thank you so much for your work in producing these, some of the best videos on RUclips.
Another awesome (and I use that term advisedly!) video, Myron. But glacial breccias? At least in deposits formed by glaciation itself, you're not going to find them, because the moving ice is so good at grinding things down. Sure, you're going to find broken rock falling on glaciers, but unless its stagnant, the tills are going to be overwhelmingly more common! As a denizen of a postglacial landscape, I am mystified by some of the erosional deposts I've seen in the American southwest. Heading out of Las Vegas for the Grand Canyon, the road cuts through what I could swear was a till, but there have surely been no glaciers there recently.... I'd love you to treat erosion of all kinds that you would find in Colorado river drainage!
Dr. Cook, I should have added. I am aware of snow avalanches. For decades I skied the high and far. Skiing the top of yesterday's avalanche is terribly erose. Much like if a farmer had covered his fields in rounded granite boulders, you are skiing a rock garden. Snow sliding down a mountain trades potential energy for heat. The snow warms with the exact amount of energy in relation to the change in elevation. Often, rolling snow compacted slush balls when the slide comes to rest, and freezes rock hard in minutes or hours. And the surface looks exactly as erose as your cliff face layers.
Morning coffee with Myron , I love Saturday mornings ❤. Thanks mate your so informative and make a boring subject extremely interesting . Wish I had teachers like you back in school!
Another great video, Myron! I was pushing the idea this breccia was from a massive tsunami/tsunamis. But, your explanation finally guided me in the correct direction! Thank you.
Very cool. To complete the story, it looks like the karst terrain was uplifted for a time and formed caves, which collapsed. Then it was submerged again, and buried under new layers of limestone. And then it was again covered with sedimentary rock ,before being uplifted again, and eroded into canyons.
@@myroncook Cool to know. I guess that's a whole other video about how the ocean basins get more and less shallow, changing sea level in the process. But surely there was a bit of both, I mean, that location is very high up now.
I've had a few ask about the impact crater Chicxulub and the formation of cenotes. The limestone which the cenotes formed in was deposited AFTER the impact. However, the impact most certainly would have fractured the older underlying limestone which could enhance the future development of cenotes in later younger limestone deposits. There is evidence that there are more cenotes along edge of the impact where massive fracturing and faulting occurred. It is important to note that there would be cenotes and other karst features without the impact. All limestone becomes fractured through time and also has bedding planes that allow for the fresh water to flow through and dissolve the rock. Bottom line; the impact created more fractures than normal which lead to the formation of more cenotes (much later) than without the impact.
A couple of viewers have informed me that I pronounced the Floridan aquifer wrong....I said it as "Floridian"...oops
Sorry, I had to, I sit atop it, and I'm a hydogeo.. so...
For that matter, it is not SUB-sid-ence (sid like sit = no-no). The correct pronunciation is sub-SIDE-ence, from subside or subSIDE with just -ence tacked on. The word come from subside, not from subsidy. Google "robot to pronounce subsidence" and the computer does all the example work.
geologists use it both ways
Mr. Cook, as a lifelong resident of the State of Florida, I encourage you to pronounce the name of our aquifer in whichever manner works best for you.
Those who choose to belittle others who have learned words and names by reading text in the absence of hearing them pronounced are a bit shameful in my opinion.
Thank you for what you do. I hope you had a great time in the Canyons.
"Floridan" is what I've usually heard it called in the mining industry here, but either way is acceptable. Floridians are sometimes called Floridiots too.
It's always a good day when another Myron Cook video drops..
Too true!
@@Ichijoe2112 why does it give you some thing to jerkoff to?
Oh no better sell all of my properties. Yeah right. Wake up dude
@@Martin-mt3wz Wat?
The Mr. Rogers of geology
I was a geology major once upon a time before I was called to another life. Still love learning more, so I am happy to have your videos!
01:44 The way you describe the beauty of the canyon and its geological history is truly captivating! Your ability to connect the stunning landscape with deep time and natural processes is inspiring and makes me appreciate the world in a whole new way. Thank you for sharing this incredible insight!
thanks!
AQUI FORA ELES VAI SER CAÇADO E PRESO E RESPODER CRIMINALMENTE E ORDEM GLOBAL ELE VAI TER INTERVENÇÃO INTERNACIONAIS #ACT
This is the kind of material I love to find online, great and fun way to learn about our beautiful planet! I love this and the way is presented. Thank you so much for sharing!
You have the best geology videos. Appreciate the time you spend on them
Thinking about deep time in terms of geological features is such a humbling thing. My background is in astronomy and astrophysics, so ive mostly been humbled by the sheer size of the universe. With geology, I have another direction to be humbled in, but in this case its with time instead of space
Here's another example of Einsteins special relativity at work, it seems space and time are truly inexplicably connected
I was gonna say are they not the same
@@autotek7930 two faces of the same coin
Deep time - Yes, that concept was first formulated in the 1700s and pushed by atheist philosopher David Hume, along with The Comte de Buffon in France, and Erasmus Darwin (grandfather of Charles), to name a few; but what evidence did they have?.
I've heard someone once say astronomy shows us our insignificance in space, and geology in time.
Sobering thoughts. As a Floridian for 51 years, I always thought Florida was just a big sand bar. He explains that the sporatic sink holes over our limestone strata (2500' deep) will expand over millions of years. Right now more coastal high-rise condos are experiencing foundation settlement causing costly damage to buildings. 13:06 He is suggesting parts of Florida will eventually collapse under water!
Yes. It's not very good news for the iguanas and gators. Saltwater is bound to take over.
Oh yes. Sealevel rise will submerge most of Florida
Yeah Florida is in the long term doomed to sea level rise and karst subsidence collapse though given time as the active margin in the Caribbean is expected to develop into the Atlantic Florida will likely rise again in some form or fashion millions of years from now. In the more short term as that freshwater aquifer is both being overdrawn with rising sea levels seawater is infiltrating it.
Though if we want to get into sobering consequences and the likes compared to seawater a bigger issue for aquifers is Florida's extremely lax and loosely followed regulations of sewage and septic systems as the porous rock means those contaminated fluids get into the aquafers and mix with agricultural run off ultimately flowing out to sea where they feed massive eutrophication algal blooms and red tide events visible from satellites. Horrible for fishing and tourism.
@@Dragrath1I live in Titusville. Seems every month there’s a warning to boil water, and sewage has been dumped in Mosquito lagoon and Indian river. Disgusting.
In fact.. The high rises were in South Florida. They were not constructed with the correct Footings, pilings and foundations. and most were built with underground parking... Not a great Idea in areas that get tidal surges. As an Engineer, I see the same poor construction all the way from Florida to NY... Florida seems to be the bulls eye for those who are politically motivated.. Amazing how all these Florida stories seem to stop at the State lines of Georgia and Alabama. I don't think we need to worry about 1 million years from now.. the earth is constantly changing. and man's may destroy the earth before natural force do.
Myron Cook is such a talented educator! He makes geology so easy to understand. These videos all seem like they could be on PBS
Agreed, absolutely wonderful.
Myron is totally the Marty Stouffer of geology.
You take me where I've been many times and make it new again. Thank you so much.
You, sir, have the soul of a poet. Always informative and enticing. Thanks!!😎
thank you!
Your exposition of geologic time is fascinating; profoundly fascinating! Marvelous! Thanks!
but not more than a guess anchored to how much money you will lose if you do not tow the line.
I live here in Florida, and made a well at a ranch a while ago. At first we only dug about 30 feet down and the water we got out of it had an extremely high concentration of iron. If you filled a bucket with water and left it out for a few hours, it would turn completely red and opaque. It wasn't until we took the well deeper that we got clean water.
This was in the SW region.
right. That's not on the aquifer. To get on it you gotta get further North but stay away from the East coast.
@leecowell8165
Well I don't know if it technically is or not, but at least the water that comes out of here is freshwater, and that's how all the houses in my area get water too.
@@leecowell8165 I live in the Ichetucknee springs area. Beautiful, pristine water here.
We called that egg water, lol, smells like sulfur, tastes nasty, turns all your toilets, tubs, and sinks orange, as well as your hair. You pulled from a shallow, surface level source that’s pretty much from ground water. Everyone along the coast uses it and use water filtration and softeners. You can’t really drill too deep or you start getting salt water inclusion.
I live about a mile from the Indian River, which is brackish. Tween the Indian River and the Atlantic is Cape Canaveral. Our well is 150 feet deep and the water is a little better. You can’t really drill drink it w/o filtering it, but it still leaves a rusty looking spot where the tub faucet drips. A little CLR handles it. We still have a water treatment system that removes iron, so it tastes better. Also, still not the aquifer. All that is on top of the limestone.
But go inland, the Ocala area, and all down the spine of Florida, and the water is amazing! My parents had a horse farm between Williston and Bronson, and their well was 500’ deep. That water was exactly the same water that Zepherhills pumped up and bottled! Sweet, clear, lovely. That’s water that has filtered down through the limestone and into the aquifer. It’s said the reason the thoroughbred industry happened in Ocala was because of that calcium rich water.
Right down the road from our farm was a place called Devil’s Den, an underground swimmin hole. We’d sneak onto the place, climb one of the live oaks that hung over the hole, and dive in. It’s a popular commercial venture now. But my mom would laugh and say ‘get out of my drinking water!’ when she knew we’d been swimming there.
@@leecowell8165 I’ll keep my east coast water. If you have spring water coming out of your well it’s because you live on a sinkhole. 😮
Im glad theres a new video. I've been binge watching the channel and running out of unwatched videos.
Keep up the outstanding work.
Thank you so much for sharing this! A masterclass not only in geology but in teaching in general! Thank you!
I agree.
I love your perspective on time and how you break down the changes between deposition, erosion, etc all in the same location. I started me geology journey watching you and it’s become a real passion of mine. I picked up a roadside geology book for my state and have learned so much
Awesome! Thank you!
NÃO DEIXA BIDEN TRUMP OBAMA BUSH CLINTON ELON MUSK TODOS LIGADO A SHORTS AI ESTA O PONTO SER NOT E PUCHAR O FIO DA LIGAÇÃO DE CONTATOS ENTRE ELE EM ESTALAÇAO EM ESCUTAS #ACT
Thank you for continuing to create quality content!
Thanks 🙏🏻👍🏻
Appreciate you taking the time to go down to Tulum to shoot this video. The sacrifices you make in the name of teaching geology are commendable!
Nice little tax write off on a trip to the beach - would be negligent not to see it in person 😏
Did you say geology? Don't you mean atheism?
:)
@@rocketscientisttoo _"Reality is that which, when you stop believing in it, doesn’t go away"_ - Philip K. Dick
Seriously, this is science (and critical thinking, and deductive logic). Let's leave religions out of it.
@@rocketscientisttoo In my opinion, learning about geological history is a great way to gain a deeper appreciation for all the majestic beauty we find all around us. It's a great way to gain a deeper appreciation of all of creation.
Thanks for another wonderful teaching video. I would never have guessed the irregular positioned red rock in cliffs in your areas like that - what it looks like as founded so long ago compared to newer cases like Florida, and especially such visible ones as in Yucatan. I enjoy the things you teach so well, how to see what something looks like after such long and different lengths of form and change.
Myron embodies all the very best traits of scientists and educators, and none of the bad. No snobby elitism, no preaching marxism, just a dude with an epic beard, a sense of wonder, curiosity about the world, and really glad to share his immense knowledge with us .Top tier youtuber for sure, we're lucky to have him!
Lol 😂 Are the Marxists in the room with us now?
Please leave your politics out of geology
Bro is so scared to death by fox news he thinks every educator is a Marxist. Lol
@@jayaltairiI think that was what he was praising Myron for: not being political.
@@Kingzzxepic Lol man, I don't watch fox news, I've been a liberal my whole life. I've just seen a lot of marxism in academia, myself. I hope you have a really great day tho bro, being dismissive to people about things they know are true via their lived experience, is a big part of the sickness that has grown in the left, and why kamala lost, and the dem party is just done politically and culturally. Lets look to the future my friend, its bright.
It's great to see you again, Myron! Keep up the amazing work
it is amazing, just like what my favorite magician does.
Wow! That was so interesting! And your photography in Wyoming is incredible. Thank you Myron for another great video!
Absolutely love your channel and work! Thank you, Sir!!
Amazing! 20 minutes explanation of beautiful caves, cenotes, limestone dissolution and karst collapses - and then all of a sudden "no, that's not the case..."! Great trick to make amazing video!!!
I am learning so much from your videos. I had no idea a person can tell so much from looking at rock. Keep up the good work
I look forward to your videos. Every one of them opens my mind to new things. This one did not disappoint.
Another great teaching video. Thank you Mr Cook.
Teaching or is that indoctrinating?
Always enjoy watching your geology videos. This is right up there and answers lots of my questions about how different places in the world look strangely alike.
I’ve been a secret sub for the last few months…maybe even a year. I’ve been catching up. I’m just a curious gal feeling like a microscopic dot in Earth’s timeline.
I love your content. What I have learned other than the physical aspects of our earth’s changes is that it has always survived. One way or another. Renewing its self and its life forms. And that earth will continue to evolve with or without us. We truly have been given the ultimate opportunity.
Thank you for your content. 🌲
heaven ad earth will pass away
Hello my friend. Always good to see you.
Hey, thanks
I’ve daydreamed about the geological similarities between the Yucatán and Florida more than once. It’s nice to know my time was not wasted and to learn the larger picture. Thank you.
Like wise from Tasmania.
Hey Mr Cook, always enjoy your geology lessons! Keep up the great work! Hello from Nova Scotia, Canada.😀👍👌✌
been there...great sea food!
Yay, Myron!
Happy to see you again!👍🏻
Your simple pleasure in examining and explaining these geological phenomena is just contagious...keep up the great work!
Many thanks!
That drone shot at 1:40 - stunning!!
Really beautiful stuff, thank you for being so generous with your knowledge and taking us on these adventures with you.
Myron, your videos are (and should be used as) a masterclass in great education. This is the polar opposite of the canned curriculum approach that has been pressed into so many classrooms, an open invitation to be curious about the world, to indulge a little question about a funny-looking rock with an enthusiastic mentor.
I’m thinking back to my years in the classroom (as a student), and it strikes me that I can’t even remember the names or the faces of some of the people who I spent an hour or more with for 180 days; in contrast, there are others who shine in my memory. In retrospect, the difference is about things like that little tree in your cross-section-a detail that I can imagine my former associate principal (when I had become a teacher myself) would have frowned at (followed up in the post-observation with a snotty remark about “distractions” and “lost instructional time).
That little tree, and the moment of fun that let me relax for a second before wrapping my brain around a new chunk of information, is an illustration of how a great educator transcends above the bulleted list of learning objectives and creates a distinct memory that anchors its roots in my mind long after the actual details of the lesson have been assimilated into the greater tree of knowledge that grows around it (pardon my slip into the fanciful metaphor; yet another thing that I got an earful about during the bi-annual assessment when I realized that I could no longer abide by the direction my administration had acceded to).
Apologies for the digression and the ridiculously lengthy comment, but your videos are an inspiration, and I hope that you continue to breathe life out into the world via your whiteboards, hikes, guided questioning, and wide drone shots for as long as it brings you joy!
POVO O YELLOWSTONE ACABA DE ENTRAR EM ERUPÇÃO ISSO E CAUSADO POR ELES VIU #ACT
Fascinating as always. Thank You.
Great job Myron 👏 - Amazing video.
Went digging on the net about sinkholes and found this map: Karst Map Of Conterminous United States 2020. Your videos
on geology are always so fascinating Myron.
Wonderful videography as well as presentation by Myron Cook. This is awesome! At first, I was thinking some music could go behind the majestic canyon shots, but I enjoyed the silence as well!
Wonderful video, I so enjoy learning about geology with you. So much fun, you are a treasure!! Thank you for sharing and teaching!!
Great job! The possible geology of tomorrow is excellent subject!
Wonderful video, thanks Myron! I really appreciate your modern day examples and white board explanations- helping us see the story of this amazing canyon, and the processes of geology! ⭐⭐⭐
17:32 - Just south of Gainesville, Florida, is a feature called "Paynes Prairie". I have a buddy from school at UF who's father remembers the feature being a lake and a regular ferry service across the lake to Micanopy. On year a hurricane blew in, and the ground opened up, and the lake disappeared creating the "Prairie". Ranchers started using the land to graze cattle. After a number of years the sinkhole got clogged and the lake began to refill. The ranchers dynamited the sinkhole to open it up again. After a few years, a unique ecosystem evolved on the "prairie", and the lake began to refill, and the ecologists studying the feature dynamited the sinkhole to open it up again. Since then, the ranchers and ecologists have conspired to keep the lake from re-appearing...
interesting!
Paynes Prairie is fascinating. Had a herd of bison at one point. It’s much bigger than people think, too. There’s been a huge drive to preserve it in the last 50 years, and most is now a protected state park. Which as you can imagine makes the ranchers angry.
It’s visibly a sunken area. It’s not just relatively flat, it dips down too. There’s plants and critters out there that are nowhere else in Florida. It’s slowly becoming marshy again over most of it. And sometimes there’s a small lake in it. But it comes and goes depending on rain fall and sink hole activities. Still some feral cattle, horses, and hogs out there. Maybe even a few bison.
Other notable features to check out in that area; The Devil’s Millhopper, a very deep and old sink hole you can walk down stairs into, on the Newberry side of Gainesville, and Devils Den, west of Williston, which is west of Gainesville. And next time you fly in or out of Orlando, look out the window and notice all the circular ponds and lakes; old sinkholes.
Manatee Springs, Blue Springs, Wakulla Springs (found a mastodon skeleton in that one,) Ginnie Springs, and of course Silver Springs, to name just a few; all started as sink holes. We even have caverns. Called, uh, Florida Caverns, xD
Thank you Myron. I always am happy to see what you have for us.
Stunning views. Thank you.
I love your style of presentation. Rather than just tell, you ask us questions then guide us to the answers. Really effective teaching/learning method! (I've learned a lot from your videos.)
That was amazing. I have always wondered where those landscapes came from in places like China and Vietnam. Beautifully explained as always, Myron. Thank you for another great video.😊
WOW, what an ending! It's always bugged me how that part of the world got to be that way. Thanks Myron, can't wait till the next adventure : )
Yay another video from Myron
amazing landscape, thanks for sharing
Myron, wow... do you ever not just totally ROCK every video? Great again!
I grew up in Florida. A few times in my youth I found sink holes in the woods. Carefully repelling down there are connnecting caves to explore if the water has drained out.
neat
We exist within a perception of time that complicates understanding the timescales of large scale universal processes. You do a really great job of explaining geologic process while barely mentioning the time periods involved, in a way that makes it easier to understand.
Looks like I have watched all your videos, Myron. I think I'll simply watch them all over again. That's what learning is all about, isn't it? Apart from that, I have got used to your gentleness and dedication. ❤
Thank you, Myron; I always look forward to your studies and vistas.
Aahh! Thank you once again, Myron, for yet another 22 kicked-back minutes of entertainment and learning. It always makes me smile when I notice a new MC in my RUclips notifications.
Wow. I'm a Floridian. South West FL. Thanks for sharing your knowledge. My friends dive and have told me many great stories about these underwater caverns. I have seen many great videos of these underwater passages.
Hi, Myron, enjoy your educational and gorgeous videos so much, never to old to learn
about geology (I am 75)...also enjoy your enthusiasm and warm heartedness. Happy Holidays!
Thank you, Happy Holidays to you too!
Thanks Myron. I always enjoy.
Always fascinating! ❤❤
I always enjoy your videos.
What's another pearl gift !!! Thank you Myron.
Excellent geologic discovery, thank you!
Best channel on RUclips!
What a great day! I just found this channel. I am a very old woman, not college educated but with an insatiable curiosity about the prehistoric history of our planet and a keen interest in the astro physics videos.
great to have you!
Your videos are amazing, thank you!
So much love and admiration for Earth in your videos. This is how I believe our planet should be treated.
I love your videos, Myron! Always enjoy seeing your videos in my feed. Keep up the great work!
This is truly fascinating! Thank you for another excellent, easy to understand geology lesson, Myron :) I really enjoyed your explanation of how cenotes are formed. All the best from Brittany, western France.
Really enjoying watching your videos Learning lots about the earth environment and grounds etc, Keep up your videos for more to come!Thank you Sir
Another great production Myron Thank you!
Phenomenal visuals in this video, Myron! Excellent content as always. Thank you!
The limestone poses a problem for Florida, especially Miami. In a period of rising sea levels (like now), Miami is impossible to defend with a sea wall; the rising sea simply goes under the sea wall through the porus rock. The salt water also takes out the freshwater lens that southern Florida depends on for freshwater. An interesting problem to say the least.
Sort of true but not completely. In fact, the USACE had plans drawn up just to handle that eventuality. Not all the rock under South Florida is the same. In fact even at the surface level it is not the same from place to place. The Biscayne Aquifer sits on top of that harder rock that the sea water would not enter. Depth of that rock ranges from ground level to about 240 feet further North ( Boca Raton ). Not at all hard to seal off using a curtain wall system. In the Miami area it is ~80 feet down to the imperious layer. But then you run into the problem of the Western part of the area. Again a curtain wall was proposed running along the C-111 Canal ( L-31N Levy ). But once you build those curtain walls, you have to figure out how you are going to get rid of the excess water that would build up inside them. We already have that problem in cases where we have a very wet Tropical Storm or Hurricane that decides to linger. At times we have seen 25 inches of rain in a 24 hour period. And I recorded in an NWS rain gage a 2" rainfall in 15 minutes. Our system is only designed currently to handle 3/4 of an inch in 24 hours. So if a curtain sea wall was built, Miami would still face flooding just it would be from fresh water and not salt water. And to handle that, again the USACE had plans. Large Pump Stations along the coast where the rivers and creeks ( now canals ) drain currently.
As an aircraft engineer in The Netherlands this stuff is non of my business but i find your sharp eye on geologic clues of historic events in nature fascinating. I'm sold on your geo-video's.
cool!
Thank you again! The only problem is... I can't get enough! Want more and more of your videos! Love your channel!
I see I’m not alone in being excited about getting to enjoy one of your videos. Thanks and have a good one!
Thank you very much, Myron, another lovely, interesting video. I was thinking of an underwater landslide, the red layer looks very turbulent. I would never thoght of karst, fascinating!
Great video as always, Myron! I’d love to see you cover the Appalachian Mountains in a future video. There’s so much fascinating history and geology to explore there!
This video just kepot me from total despair after a horrible two weeks. Geologic time is soothing.
Very nice! Thank you, Myron, for the REAL science and knowledge.
I love and look foreword to these moments of being in a different world/time through your narration and video style.
You've brought so many people peace with these videos.
Merry Christmas!
Truly enjoyed the video and the reminder that "It came to pass. It didn't come to stay."
Hey Myron, my favorite geologist! From your neighbor in the Bitterroot Valley, Montana.
The only sad part about this video is we will not be here to see the beauty imagined in another 5k to 1M years from now. Excellent episode, thanks for sharing.
Thanks, Myron! I always enjoy your videos!
I have now watched all of your videos. What a wonderful treasure trove of beautiful landscapes, with a fascinating narrative explaining it all. I am an Englishman, and way back in the nineties I drove thousands of miles in the midwest. I was captivated by the geology and I shall never forget it. Thank you so much for your work in producing these, some of the best videos on RUclips.
Many thanks!
Another awesome (and I use that term advisedly!) video, Myron. But glacial breccias? At least in deposits formed by glaciation itself, you're not going to find them, because the moving ice is so good at grinding things down. Sure, you're going to find broken rock falling on glaciers, but unless its stagnant, the tills are going to be overwhelmingly more common! As a denizen of a postglacial landscape, I am mystified by some of the erosional deposts I've seen in the American southwest. Heading out of Las Vegas for the Grand Canyon, the road cuts through what I could swear was a till, but there have surely been no glaciers there recently.... I'd love you to treat erosion of all kinds that you would find in Colorado river drainage!
I have never seen a glacial breccia but there is no reason it couldn't happen and I fully expect that it has
So excited, thank you
You will inspire so many to take to studying the wonders of our earth. Thank you!
Dr. Cook, I should have added. I am aware of snow avalanches. For decades I skied the high and far. Skiing the top of yesterday's avalanche is terribly erose. Much like if a farmer had covered his fields in rounded granite boulders, you are skiing a rock garden. Snow sliding down a mountain trades potential energy for heat. The snow warms with the exact amount of energy in relation to the change in elevation. Often, rolling snow compacted slush balls when the slide comes to rest, and freezes rock hard in minutes or hours. And the surface looks exactly as erose as your cliff face layers.
Another wonderful video, Myron. I'm humbled by our dynamic planet...lets take care of it.
Morning coffee with Myron , I love Saturday mornings ❤.
Thanks mate your so informative and make a boring subject extremely interesting .
Wish I had teachers like you back in school!
Another awesome video. Thank you Myron!!
Another great video, Myron! I was pushing the idea this breccia was from a massive tsunami/tsunamis. But, your explanation finally guided me in the correct direction! Thank you.
Thanks for another great video Myron.
This guy read the rocks like a book! I love deep time and to understand how it all happens. Thanks Dr Cook!
Very cool. To complete the story, it looks like the karst terrain was uplifted for a time and formed caves, which collapsed. Then it was submerged again, and buried under new layers of limestone. And then it was again covered with sedimentary rock ,before being uplifted again, and eroded into canyons.
better to say sea level changed...very similar to land uplifting
@@myroncook Cool to know. I guess that's a whole other video about how the ocean basins get more and less shallow, changing sea level in the process. But surely there was a bit of both, I mean, that location is very high up now.
Thanks Myron - good videos; interesting and well worth watching.