Somehow I got the date of the earthquake in Newfoundland wrong. It was in 1929 not 1936.Many of the channels are not active and haven't been active since the last ice age when sea levels were very low and erosion of the canyons occurred.
If you ever head west to the scablands of eastern Washington. You are welcome at my place. My mind often wonders about with questions. lol. Like. What kind of mineral deposits would we find in the ridges of the old sea floor now covered. Because the shape of the rough floor looks like a big sluice box. The bottom of the valleys will hold the heavier minerals
I love this channel, it reminds me of my home in Rock Island, there is a state park here and if you go to the end of the road in the main park there is a large rock face across the river, where upstream is the Great Falls Dam.
Im no geologist, my schooling was in auditory science yet this channel and video found me and I have to applaud the presentation, the clear passion for the subject and the moments where the viewer is asked to ponder questions they probably don’t know the answer to. All of these are the hallmarks of a master instructor. Thank you sir, for 32 minutes you made me an avid geology enthusiast and that will likely continue beyond this chance meeting. Seems like youtube can be a positive after all!
And I'm gonna give my thoughts as a geologist. I would hike ALL the way to North America to have a beer and talk about geology. I am a Brazilian sequence stratigrapher and this desert like Landscapes bring tears of joy to my eyes (here tropical Forest covers everything). Keep the masterful work for as long as the deep time. cheers!
There's tons of great channels depending on what you want to learn. I highly recommend North 02 for ancient human history, Crecganford for ancient human religions, Ancient Architects for all things megalithic, and History for Granite for pyramid specific videos mostly focused in Egypt.
Years ago when I first started enjoying the wonders of satellite maps, the underwater canyons off the continental shelf always intrigued me in how they got there. Thank you again for another lesson in geology!
It seems like there are lots of underwater canyons along the east coast of the US especially from the mid-Atlantic and northward along Canada’s Atlantic coast. Hudson Canyon being one of them.
That discussion about what 1950s geologists would have said was such a great way to bring alive the problems of the proposed explanations and to give perspective into how far modern understanding has developed. Your onscreen feet to metres rubrics are also very appreciated.
I agree, that science keeps throwing out bad data and bad assumptions and false theories as factual evidence is collected. I am convinced that eventually with enough factual evidence, geologists will eventually have to agree and admit that everything they presently believe is wrong and the evidence proves that the Biblical account is actually what happened. The explanation of rock layers can only be explained by rapid processes caused by a world wide flood. Not millions of years of time and slow build up of soil turning into rock.
Something I really enjoyed about this video is the way it subtly celebrates the scientific method. Rather than just teaching what the river fans are, it goes through the history of our understanding of them. The way our knowledge grows over time, the way theories are built up, debunked, and rebuilt, the way science isn't afraid to say "we were wrong" is beautiful to me.
Thank you for blending in the numbers in meters as well! Otherwise many of us would have no idea how deep high or far the distances are. I just think that deserves some appreciation!
The drone work was indeed very good. I wonder if you can film a longer drone video across the entire canyon, because in the beginning of the video you (Myron) put out the idea that a huge sea washed across the entire area of North America. A drone video timelapse of this entire area can clarify if that is the case.
As a Geologist I really enjoy watching your videos. Sometimes I learn new things, sometimes they just make me remember why I went into Geology in the first place. Always great presentations! Thanks for your efforts!
Another example of your wonderful teaching style! You draw the viewer along with you gradually explaining the process and how it formed the structures seen in old rocks and still proceeding today. I just love this - you make it all so easy to imagine and understand. Thanks so much for sharing your knowledge with us in a way so interesting and natural to follow.
Myron and Nick Zentner of Central Washington University are my favorite geologists on TH-cam. Being a Pacific Northwest resident, I find the geology of the American West very fascinating. These guys bring it to me in a format that I can actually understand. Great work!
I'm not even into Geology and don't know why TH-cam suggested it to me. But now I've just spent 32m watching it in a semi-hypnotized state while having my 6am waking up coffee...
Mr Cook I very much enjoyed this video. You peaked my interest when you talked about the earthquake off Newfoundland where I grew up. I will be following your journey. Thank you!
The degree of meandering of some of those Bengal channels is quite remarkable. It's difficult to imagine formation of meandering channels in a submarine environment. It would seem to imply extremely low topographic gradients AND a continuous, slow flow capable of eroding the material upon which it moves. I've always thought, perhaps incorrectly, that turbidites are deposited intermittently. Those meandering channels look like the work of a continuous process. What it suggests to me is very high density (cold), continuous but slow, channelized fluid flow, with limited suspended load. Almost like an immiscible stream. Probably ridiculous. It would be interesting to see if there are cutoff oxbows around these channels. Love and appreciate your work, Myron.
Yes, I was very surprised at the degree of meandering too. It seems like the physics is surpisingly similar to surface flow, if at different length and time scales. Many of those maps looked exactly like surface river channels.
Really enjoying your videos - thanks for your efforts. Currently working on a R&D Navy ship far from any mountains I love. When I return I’ll have your insights and it’ll even be better!
I actively follow several geology-related TH-camrs. I like them all, but Myron is my favorite. Thank you so much for the work you do making these videos Myron. Can’t wait until the next one!
You're presenting everything so very eloquently and clearly. I think that I should get educational credits and possibly a TH-cam PHD. Seriously, I may have just learned beyond what you set out to teach. I will take your knowledge and wish to add to it.
How did I find this channel only now? TBH, I haven't been massively into geology but this is some refreshingly good quality content for youtube. Hats off to you Myron. You've earned a new sub
I recently purged (unsubscribed) from 50+ channels. But not you Myron. Thank you for your amazing research and reporting. I love it. And I was never interested in this stuff until I stumbled on your channel. You speak my language. Peace!
Love this! I'm putting you on a list of geology channels my friend needs to check out. This video was great--I learned new things today--always a win for me. Another wonderful day at TH-cam University!
This was the nerdiest geological breakdown video I’ve ever watched. Cut and dry, didn’t try to over hype, or turn into artificially exciting information. Didn’t think I would care for it much, but it was very interesting. Thank you.
I got excited when I saw the notification for your new video, but had to wait until I got home to watch. I’m always amazed at your enthusiasm and dedication you put into your videos and I thank you very much!
Myron, I see you included a graphic of the Monterey canyon at Monterey Bay, CA. This massive underwater canyon and fan is not conducive with the very small drainage area of the small coastal hills in the area. We'd love to watch your take on this unconformity. Some think the canyon was cut by the Colorado River, but the movement of the San Andreas fault has displaced it over 500 miles to the south. Thanks for your channel!
Hi, I'm a geologist myself and I really love your videos. You are really like man to live in such a beautiful area. To do field work here in Europe is much more complicated I tell you. The exposures that you are enjoying man.... I'm really envious. Anyway, just a comment. Talking about turbidites you should have mentioned an Italian geologist named Carlo Migliorini. Kepp up with the wonderful work.
Fascinating! I have wondered about these channels for sometime. I couldn’t imagine the sea level being at those depths and couldn’t imagine a mechanical process that could carve them. Thanks much!
It never occurred to me that something like this could either exist or be interesting. The story in this video is told in such an engaging way, I have both learned something new and found deep sea mud fascinating in a way I would never have expected.
As always another interesting topic that I knew nothing about. How amazing Geology has become since the 50's. You present so very well and create great enjoyable videos about it. I sure wish my dad was alive to see these. He was a geophysicist for Phillips Pet and spent much of his career in Wyoming. He would point out a lot of geological features that he learned about as we drove around places.
I have been curious about these underwater rivers since I was younger and followed them around on Google maps. I don't know why more people don't talk about them they are fascinating. Great video!
This channel was randomly recommended to me on the frontpage of TH-cam and I find the information here invaluable. Even as a small child I would get in trouble in my history classes because I would zone out as I was enthralled by all the maps and would study them as much as I can, endlessly wondering how everything formed and came to be. When I would take textbooks home for studying, I would find myself sometimes from dusk to dawn just studying the maps. I remember even as a kid envying adults who owned a globe map, to me it was such a treasure.
Thanks Myron, for another great video/geology lesson. You make these events easy to understand even though I have difficulty wrapping my brain around the vast amount of time it has taken for the results we see today.
The photography is breathtaking when you are scaling that hillside. And the scenic beauty is augmented by your excellent explanations. Thanks for making these videos, Myron.
This channel is so nice. You learn interesting things and you're doing so from such a friendly folk with a very nice accent and smooth voice. It's so relaxing!
I’ve been fascinated with these features since google earth first started making seafloor topography available. What’s interesting about this video and the topic in general is that you never really arrived at a ‘mechanism’ or supply for the force needed to move these turbides thousands of miles, in a highly organized fashion. Youve described the results of the mechanism, but not how it functions! I’ve never found the answer, maybe it’s still unknown, but obviously gravity is playing a role. My theory is that chemistry is much more involved. These mass suppliers of dense, fresh water introduce a volume sufficient to overpower the mixing that would naturally occur in a smaller volume. This causes a channel to become trapped under the lighter saltwater, and as the slope continues, the increasing overhead weight and pressure causes this funnel of dissimilar liquid to ‘accelerate’ at an accelerating rate. I think the Greenland feature is the key to this whole puzzle. This is a place on earth where the freshwater supply is very high, and also very evenly distributed (without concentrations on specific valleys). The supply is great enough that we find many tiny sources of freshwater converging at the lowest point and organizing into a funnel. I picture something like two metal surfaces pressing together, with a highly viscous oil between. It hits a certain pressure and accelerates toward the path of least resistance. Just a theory!
Interesting theory. But would this lighter seawater-heavier fresh water thing continue for 2000 kilometers like in the channel under the Ganga/Bengal Delta?
I think it is unlikely that this mechanism can continue for 2000 kilometers in the sea. It is more likely that the sea was much much lower and the land much much further into the sea earlier.
@@KaranBhatia well, that’s the one thing we almost know for certain: sea levels could have been as much as 300-500 feet lower, but not 8000 feet lower! These channels go VERY deep. In the case of a Snowball Earth, where there is no sea, I suppose these could have been created when that condition first began melting, but it would have been so many millions of years ago that the evidence would be completely buried and erased. It seems as though these canyons are actually still in use to this day. So in my opinion I doubt that those are remnants from an oceanless period (which we still haven’t found compelling physical evidence for).
You explain complex geology so masterfully, I'd really love to see you explain the Grand Canyon's formation to us. You would do such a better job than the signage at the park does! Feel free to make it an extra long or multi-part video as needed. I'm sure people many would watch and schools would show it too!
Great presentation, well explained! As it happens, just the other day I was watching a video about the dry period of the Mediterranean, and one of the proofs of this theory was the underwater channels. I immediately went sceptic because these channels are everywhere in the ocean floor. The dry Med theory still could be valid but now I know how these channels are formed, and as usual nature is so much more creative than we first think.
This is an amazing post. So glad it got flagged for me. It's geology for the masses in its simplest form. Any lay person can understand and appreciate nature's awesome power. The narration is superb and at a pace even I can follow. You sir a true academic. Thank you for making geology and earth sciences understandable. Greetings from UK.
Great vid, thanks! This is so cool! I have had the chance to see a microcosm of this where I live near a local flood control state park dam called Tuscarora in Pennsylvania. The dam is 80 feet deep and since autumn they've been lowering the level about 30' for breast repairs. The inflow backwater area has the silt plain you'd expect, but the colder inflow continues to follow the original stream path for quite a distance, scouring down to the usual sandy, gravel, rock stream bed. Even the small side streams and rivulets have these carved channels until they converge with the main channel. Im sure there's some differences between this and ocean canyons, but it makes it easier to imagine and understand what a fresh water inflow would do in salt water. It's quite surprising to look 3-6'+ down the straight mud walls of a mini canyon that would have 10-20'+ of water above it and know it's still carving after traveling 600-800' in the relatively slow flowing shallow area.
That sounds exactly what we saw in UK when there was a hot dry summer a couple of years ago (not last year like all the usual suspects keep telling us). Many of the reservoirs got very low and we could see exactly what you described. The old original streams still passed under their original bridges even though they had been under water for decades and could have flowed where they wanted to
Thank you, Myron for this fascinating presentation. Knowing the amount of effort to produce one of these, my "hat is off" to you! I always look forward to receiving notification for your new videos and your sharing the knowledge you have obtained over your lifetime. Cheers from Seattle!
Wow. Incredible to know more about what's going on underneath Monterey Bay! Bay Area landscape artist here that loves learning about geology from your channel! Would love to see even more about the state of California!
Turbidites - that's a word I learned from Nick Zetner and Brian Atwater. Even a old goat like me can learn a thing or two! LOL 😂 Edit: those extremely long sea-bed rivers are more than just turbidites. Perhaps a different name for these?
It is a fascinating subject. At one of this years Submarine Networks conferences, one of the topics for discussion was faults. While fishing is the primary cause, geology still plays a major function. The Congo basin has been especially challenging. Large rainfall events during the annual rainy season leads to build up of deposited material. This can be somewhat unstable and when it then moves en masse it can cause submarine faults. Understanding this is extremely important as we can make better decisions on cable construction (more armouring rtc) and laying (routing, burial depth etc) to make them more robust
Myron, I'm not sure how I found your channel but I'm so glad I did! Geology has never even been on my radar but now that it is, I'm diving in head first. I love hiking the Rockies and you've just shown me a way to enjoy it even more!
Thank you for sharing your knowledge of this subject. I love looking at satellite images and did not understand the ocean floor images and why some where smooth and other areas raw and ruff I went directly to ocean floor images and my understanding now has opened my mind. Thanks again.
Thank you Myron! Half an hour flew by and I was totally engaged the entire time. You remind me of my favourite geology professors - absolutely brimming with knowledge and passion for geology, and able to hold the attention of those they are relaying the information to the entire time. (Also thank you for including metric)
That explains some of the features I have noticed on the sea floor. This puzzled me greatly since the features looked like land surface erosion features. My mind tried to come up with scenarios that could explain this. This video did a much better job!
We are familiar with "suction" where a sinking ship pulls the water around it down in a column as the unfortunate ship falls to the ocean floor. That a similar column is formed when sediment rich freshwater hits saltwater, and the sediment precipitates downwards, carrying a river of water with it much the same as a sinking ship does works similarly, physics wise.
Spectacular! Thank you! I had no idea that we had such detailed maps of the seafloor. I found myself wondering about some of the more regular features there, straight lines and such and if these might be anthropogenic in nature.
Contrary to what Frank Lloyd Wright believed, there are plenty of straight lines in nature. One of my favorite examples is Split Rock in Linville, NC, mostly because it's local to me. With that said, there're multiple places with evidence of civilizations that were submerged by rising sea levels, so we'll surely find more!
Im really enjoying this. Finally some good informative geology that isnt just trying to wow me the whole time. It knows it’s interesting and calmly gives me the info. Gives me a feeling that shows havent given me in a long time. Thanks!
Man this is just fantastic. Thanks for making geology fun again. It’s been a while since a “science” channel here has been able to hold my curiosity longer than four minutes 😅
This video showed up in my recommended, and im so happy i have found this channel. You love what you do and so do i, excited to see all the videos on your channel now!
Myron, finding your channel is one of the joys of digging through TH-cam. I've been seeking information on the underwater artifacts for 3 to 5 years, starting with the Hudson River canyon near New York City. Myron you are the answer to an informational prayer for the last 3 years. Thank you so much. Obviously subscribed. I will joyously be digging through your playlists for weeks.
I grew up on the banks of the Lower Mississippi River and I was always amazed at the force of the river. Once I became an adult and learned even more, I stand in awe by the “Father of Waters.” We’ve been able to redirect and push the river in this way and that way, but that’s just temporary. Mother Nature will find a better way to the Gulf.
This is so awesome. I came across these channels a couple of years ago on my own while exploring on Google maps and consulted with a few friends including a geological engineer. We were perplexed by the association of rivers to these features but never something as sophisticated as your explanation. Fascinating!
What a coincidence, I was looking at these channels on Google Earth a couple days ago and wondered if you would ever make a video about them. They are truly fascinating features but what I find most exciting about them is that they may help us discover rivers that no longer exist. For example there is speculation that a large river system existed in the western Sahara when that region had a wetter and more temperate climate. On land any such riverbeds have long been buried under the sand but but at the ocean floor these channels still exist. Looking at the USGS map there are multiple canyons cutting into the continental shelf off the coast of Mauritania and one, the Arguin Canyon, extends far out into abyssal plain. Perhaps this is evidence of such an extinct river?
Myron, your videos were very good when you started, but you keep getting better and better. This last one was really very, very good. I have some small sense of how much time, work, and money you have put in to these, and I, for one, am floored by your effort. Absolutely superb work, and a shining example for others. Much respect.
Geologist: "Ahh, yes. I think I know what's going on here..." Mother Nature: "We'll see about that". You know what? I'd LOVE to dive into those continental shelf canyons, just knowing that I'd be in two worlds at the same time.. an under-water valley, following a pre-historic river bed, cutting through a canyon, all underwater... It's stuff like that which ignites my passion for Geology. I absolutely love Geology.
Found your channel and binged watched every single one of them over a few days! Love the way you teach, you made geology fun to learn. Thanks so much for taking your time and making them Mr. Cook!
I used to hate geology back in high school, but you managed to make it fascinating. I really felt like a soil detective, trying to uncover some mystery, and the whole process was so interresting ! Thanks a lot, you won another subscriber !
I find it fascinating that the underwater rivers show the same meandering as surface rivers. Wow! Those trees you draw to indicate horizontal perspective; they're a quarter of the size of Mount Everest.
I gotta say , this is the first video I’ve seen from you , and I really appreciate you’re enthusiasm and your wealth of knowledge. This is A-1 , high grade , Quality stuff .
Somehow I got the date of the earthquake in Newfoundland wrong. It was in 1929 not 1936.Many of the channels are not active and haven't been active since the last ice age when sea levels were very low and erosion of the canyons occurred.
You're a very good clear teacher,
and now I know that rivers, deltas, and channels continue far, far out undersea.
If you ever head west to the scablands of eastern Washington. You are welcome at my place. My mind often wonders about with questions. lol. Like. What kind of mineral deposits would we find in the ridges of the old sea floor now covered. Because the shape of the rough floor looks like a big sluice box. The bottom of the valleys will hold the heavier minerals
I love this channel, it reminds me of my home in Rock Island, there is a state park here and if you go to the end of the road in the main park there is a large rock face across the river, where upstream is the Great Falls Dam.
I appreciate your lengthy descriptions, geology like astronomy is an opportunity for me to escape the “worldly world of human concerns”…..lol
You ain't google, you're Myron😮😮😮😅😅😅😅😊😊😊😊😊😊😊😊😊😊😊!✝️🙏🇺🇲✝️🙏🇺🇲✝️
Im no geologist, my schooling was in auditory science yet this channel and video found me and I have to applaud the presentation, the clear passion for the subject and the moments where the viewer is asked to ponder questions they probably don’t know the answer to. All of these are the hallmarks of a master instructor. Thank you sir, for 32 minutes you made me an avid geology enthusiast and that will likely continue beyond this chance meeting. Seems like youtube can be a positive after all!
Wow, thank you!
And I'm gonna give my thoughts as a geologist. I would hike ALL the way to North America to have a beer and talk about geology. I am a Brazilian sequence stratigrapher and this desert like Landscapes bring tears of joy to my eyes (here tropical Forest covers everything). Keep the masterful work for as long as the deep time. cheers!
There's tons of great channels depending on what you want to learn. I highly recommend North 02 for ancient human history, Crecganford for ancient human religions, Ancient Architects for all things megalithic, and History for Granite for pyramid specific videos mostly focused in Egypt.
Years ago when I first started enjoying the wonders of satellite maps, the underwater canyons off the continental shelf always intrigued me in how they got there. Thank you again for another lesson in geology!
Ditto!!!
Me too. I first saw them on some excellent charts of the shelf off of New England done by NOAA back in the 70s. Blew me away .
It seems like there are lots of underwater canyons along the east coast of the US especially from the mid-Atlantic and northward along Canada’s Atlantic coast. Hudson Canyon being one of them.
hello...there was a great flood. LOL
@@MusicLovingFool1Religious nutjobs need not apply
That discussion about what 1950s geologists would have said was such a great way to bring alive the problems of the proposed explanations and to give perspective into how far modern understanding has developed.
Your onscreen feet to metres rubrics are also very appreciated.
I agree, that science keeps throwing out bad data and bad assumptions and false theories as factual evidence is collected.
I am convinced that eventually with enough factual evidence, geologists will eventually have to agree and admit that everything they presently believe is wrong and the evidence proves that the Biblical account is actually what happened. The explanation of rock layers can only be explained by rapid processes caused by a world wide flood. Not millions of years of time and slow build up of soil turning into rock.
Something I really enjoyed about this video is the way it subtly celebrates the scientific method. Rather than just teaching what the river fans are, it goes through the history of our understanding of them. The way our knowledge grows over time, the way theories are built up, debunked, and rebuilt, the way science isn't afraid to say "we were wrong" is beautiful to me.
Well said!
Thank you for blending in the numbers in meters as well! Otherwise many of us would have no idea how deep high or far the distances are.
I just think that deserves some appreciation!
Thank you, Myron, these videos are really enjoyable. The drone work is always spectacular as well! Dave J
The drone work was indeed very good. I wonder if you can film a longer drone video across the entire canyon, because in the beginning of the video you (Myron) put out the idea that a huge sea washed across the entire area of North America. A drone video timelapse of this entire area can clarify if that is the case.
As a Geologist I really enjoy watching your videos. Sometimes I learn new things, sometimes they just make me remember why I went into Geology in the first place. Always great presentations! Thanks for your efforts!
Glad you like them!
Another example of your wonderful teaching style! You draw the viewer along with you gradually explaining the process and how it formed the structures seen in old rocks and still proceeding today. I just love this - you make it all so easy to imagine and understand. Thanks so much for sharing your knowledge with us in a way so interesting and natural to follow.
Thank you!
Myron and Nick Zentner of Central Washington University are my favorite geologists on TH-cam. Being a Pacific Northwest resident, I find the geology of the American West very fascinating. These guys bring it to me in a format that I can actually understand. Great work!
thanks!
I live in Oregon, but for sure the geologic variety in Wyoming completely blows away the Columbia River Basalts we have here in Oregon and Washington.
Best Geology content on TH-cam, well done!
Best geology content on planet Earth!
Content is sublime loaded with wisdom
I'm not even into Geology and don't know why TH-cam suggested it to me.
But now I've just spent 32m watching it in a semi-hypnotized state while having my 6am waking up coffee...
GeologyHub also does some good content too
Seafloor gold
Mr Cook I very much enjoyed this video. You peaked my interest when you talked about the earthquake off Newfoundland where I grew up. I will be following your journey. Thank you!
The degree of meandering of some of those Bengal channels is quite remarkable. It's difficult to imagine formation of meandering channels in a submarine environment. It would seem to imply extremely low topographic gradients AND a continuous, slow flow capable of eroding the material upon which it moves. I've always thought, perhaps incorrectly, that turbidites are deposited intermittently. Those meandering channels look like the work of a continuous process. What it suggests to me is very high density (cold), continuous but slow, channelized fluid flow, with limited suspended load. Almost like an immiscible stream. Probably ridiculous.
It would be interesting to see if there are cutoff oxbows around these channels.
Love and appreciate your work, Myron.
Yes, I was very surprised at the degree of meandering too. It seems like the physics is surpisingly similar to surface flow, if at different length and time scales. Many of those maps looked exactly like surface river channels.
@@Sgrunterundt ditto
Not ridiculous. Generally, correct, Imo. Meandering makes sense to me as this indicates the slowing of the river at various points.
Salinity and temperature gradients moving water may create channels as well as the gravity force of elevation gradients
@@MARILYNANDERSON88 So much to learn, so little time ...
Very enjoyable and educational. The outcrop and the seafloor maps make things much more real. Thank you.
Perrot
Oh gosh, one more example of the difference between the flat bottomed ocean floor in my very first science books and the present! Thanks so much.
Great comment
Myron, it’s 12:30am Saturday night….and i’m watching your totally captivating talk on the ocean floor. Love your channel.
Wow, thank you!
Really enjoying your videos - thanks for your efforts. Currently working on a R&D Navy ship far from any mountains I love. When I return I’ll have your insights and it’ll even be better!
safe return!
Fair winds and following seas
This is one of the best geology channels on TH-cam ever! Thank you for the effort and your amazing results!
I actively follow several geology-related TH-camrs. I like them all, but Myron is my favorite. Thank you so much for the work you do making these videos Myron. Can’t wait until the next one!
Wonderful programme, absolutely fascinating, learned a lot. Don't know much about geology, but this guy explains it better than anyone else I've seen.
You're presenting everything so very eloquently and clearly. I think that I should get educational credits and possibly a TH-cam PHD. Seriously, I may have just learned beyond what you set out to teach. I will take your knowledge and wish to add to it.
Wow, thank you!
How did I find this channel only now?
TBH, I haven't been massively into geology but this is some refreshingly good quality content for youtube. Hats off to you Myron. You've earned a new sub
thanks!
Thank you, Myron, always a pleasure being taught by you!
Youu mean endoctrinated dont you?
I recently purged (unsubscribed) from 50+ channels. But not you Myron. Thank you for your amazing research and reporting. I love it. And I was never interested in this stuff until I stumbled on your channel. You speak my language. Peace!
Love this! I'm putting you on a list of geology channels my friend needs to check out. This video was great--I learned new things today--always a win for me. Another wonderful day at TH-cam University!
This was the nerdiest geological breakdown video I’ve ever watched. Cut and dry, didn’t try to over hype, or turn into artificially exciting information. Didn’t think I would care for it much, but it was very interesting. Thank you.
Glad you enjoyed it!
What a fascinating topic. Thanks for the video Mr. Myron.
Youre voice is very calming. Ill listen just for that reason haha. Thank you for the educational information. God bless 🙏
Great Stuff, love listening to this guys accent. Thanks for your work, Scotland. UK.
Thank you for the metric conversions. I appreciate it. Another fascinating video!
Newell
I got excited when I saw the notification for your new video, but had to wait until I got home to watch. I’m always amazed at your enthusiasm and dedication you put into your videos and I thank you very much!
Myron, I see you included a graphic of the Monterey canyon at Monterey Bay, CA. This massive underwater canyon and fan is not conducive with the very small drainage area of the small coastal hills in the area. We'd love to watch your take on this unconformity. Some think the canyon was cut by the Colorado River, but the movement of the San Andreas fault has displaced it over 500 miles to the south. Thanks for your channel!
good info!
Woohoo! New Myron Video!
Let’s send Myron and Randall on a summer expedition followed by a film crew and the bright podcast friends
@@at_3831 Id like to see Myron on Mars, make sense of all that geology.
Who the hell is byron
@@ThumbDrDamn, you beat me to it by 3 hours.
Hi, I'm a geologist myself and I really love your videos. You are really like man to live in such a beautiful area. To do field work here in Europe is much more complicated I tell you. The exposures that you are enjoying man.... I'm really envious. Anyway, just a comment. Talking about turbidites you should have mentioned an Italian geologist named Carlo Migliorini. Kepp up with the wonderful work.
Wow, thank you!
Fascinating!
I have wondered about these channels for sometime. I couldn’t imagine the sea level being at those depths and couldn’t imagine a mechanical process that could carve them.
Thanks much!
This was quite interesting! Reminded me of my college days and geology class. Thank you for this presentation!
Glad you enjoyed it!
I always wondered about these channels round the UK. Thanks for the vid!
Um besides. Doggerland
@@wendygerrish4964 No, the UK sits on a shelf that has these canyons running off into the deep. What was Doggerland is actually fairly shallow.
It never occurred to me that something like this could either exist or be interesting. The story in this video is told in such an engaging way, I have both learned something new and found deep sea mud fascinating in a way I would never have expected.
Hey Payne 😊
As always another interesting topic that I knew nothing about. How amazing Geology has become since the 50's. You present so very well and create great enjoyable videos about it. I sure wish my dad was alive to see these. He was a geophysicist for Phillips Pet and spent much of his career in Wyoming. He would point out a lot of geological features that he learned about as we drove around places.
I wish your dad and my dad could watch them
They can! At the very least, they are seeing it thru your eyes. "Those we love are never truly gone as long as we remember them. "
I have been curious about these underwater rivers since I was younger and followed them around on Google maps. I don't know why more people don't talk about them they are fascinating. Great video!
Living on the FL gulf coast, I appreciated seeing the Mississippi alluvial fan highlighted.
Thanks for posting! ☆
This is an outstanding presentation! Myron never disappoints 😊
Deb 😮
Thanks Myron. You have a way of describing geology that always stretches my imagination. There is so much more to be learned.
Glad to hear that!
This channel was randomly recommended to me on the frontpage of TH-cam and I find the information here invaluable. Even as a small child I would get in trouble in my history classes because I would zone out as I was enthralled by all the maps and would study them as much as I can, endlessly wondering how everything formed and came to be. When I would take textbooks home for studying, I would find myself sometimes from dusk to dawn just studying the maps. I remember even as a kid envying adults who owned a globe map, to me it was such a treasure.
cool
Thanks Myron, for another great video/geology lesson. You make these events easy to understand even though I have difficulty wrapping my brain around the vast amount of time it has taken for the results we see today.
Complex ideas explained clearly, simply and engagingly. Thoroughly enjoyable. Thank you.
The photography is breathtaking when you are scaling that hillside. And the scenic beauty is augmented by your excellent explanations. Thanks for making these videos, Myron.
Great video! Keep up the excellent work! I grew up on a small ocean-going sloop. The depths never cease to amaze me.
idk why you are dominating my feed as of late but I am blessed everytime. great work!
This channel is so nice.
You learn interesting things and you're doing so from such a friendly folk with a very nice accent and smooth voice.
It's so relaxing!
Wow, thank you!
I’ve been fascinated with these features since google earth first started making seafloor topography available. What’s interesting about this video and the topic in general is that you never really arrived at a ‘mechanism’ or supply for the force needed to move these turbides thousands of miles, in a highly organized fashion. Youve described the results of the mechanism, but not how it functions! I’ve never found the answer, maybe it’s still unknown, but obviously gravity is playing a role. My theory is that chemistry is much more involved. These mass suppliers of dense, fresh water introduce a volume sufficient to overpower the mixing that would naturally occur in a smaller volume. This causes a channel to become trapped under the lighter saltwater, and as the slope continues, the increasing overhead weight and pressure causes this funnel of dissimilar liquid to ‘accelerate’ at an accelerating rate. I think the Greenland feature is the key to this whole puzzle. This is a place on earth where the freshwater supply is very high, and also very evenly distributed (without concentrations on specific valleys). The supply is great enough that we find many tiny sources of freshwater converging at the lowest point and organizing into a funnel. I picture something like two metal surfaces pressing together, with a highly viscous oil between. It hits a certain pressure and accelerates toward the path of least resistance. Just a theory!
Interesting theory. But would this lighter seawater-heavier fresh water thing continue for 2000 kilometers like in the channel under the Ganga/Bengal Delta?
I think it is unlikely that this mechanism can continue for 2000 kilometers in the sea. It is more likely that the sea was much much lower and the land much much further into the sea earlier.
@@KaranBhatia well, that’s the one thing we almost know for certain: sea levels could have been as much as 300-500 feet lower, but not 8000 feet lower! These channels go VERY deep. In the case of a Snowball Earth, where there is no sea, I suppose these could have been created when that condition first began melting, but it would have been so many millions of years ago that the evidence would be completely buried and erased. It seems as though these canyons are actually still in use to this day. So in my opinion I doubt that those are remnants from an oceanless period (which we still haven’t found compelling physical evidence for).
Salt water is heavier than fresh water.
@@kokvad well there’s a really big problem for my theory. Haha.
You explain complex geology so masterfully, I'd really love to see you explain the Grand Canyon's formation to us. You would do such a better job than the signage at the park does! Feel free to make it an extra long or multi-part video as needed. I'm sure people many would watch and schools would show it too!
Hi Danielle
Great presentation, well explained! As it happens, just the other day I was watching a video about the dry period of the Mediterranean, and one of the proofs of this theory was the underwater channels. I immediately went sceptic because these channels are everywhere in the ocean floor. The dry Med theory still could be valid but now I know how these channels are formed, and as usual nature is so much more creative than we first think.
This is an amazing post. So glad it got flagged for me. It's geology for the masses in its simplest form. Any lay person can understand and appreciate nature's awesome power. The narration is superb and at a pace even I can follow. You sir a true academic. Thank you for making geology and earth sciences understandable. Greetings from UK.
Great vid, thanks!
This is so cool! I have had the chance to see a microcosm of this where I live near a local flood control state park dam called Tuscarora in Pennsylvania.
The dam is 80 feet deep and since autumn they've been lowering the level about 30' for breast repairs. The inflow backwater area has the silt plain you'd expect, but the colder inflow continues to follow the original stream path for quite a distance, scouring down to the usual sandy, gravel, rock stream bed. Even the small side streams and rivulets have these carved channels until they converge with the main channel.
Im sure there's some differences between this and ocean canyons, but it makes it easier to imagine and understand what a fresh water inflow would do in salt water.
It's quite surprising to look 3-6'+ down the straight mud walls of a mini canyon that would have 10-20'+ of water above it and know it's still carving after traveling 600-800' in the relatively slow flowing shallow area.
That sounds exactly what we saw in UK when there was a hot dry summer a couple of years ago (not last year like all the usual suspects keep telling us). Many of the reservoirs got very low and we could see exactly what you described. The old original streams still passed under their original bridges even though they had been under water for decades and could have flowed where they wanted to
Thank you, Myron for this fascinating presentation. Knowing the amount of effort to produce one of these, my "hat is off" to you! I always look forward to receiving notification for your new videos and your sharing the knowledge you have obtained over your lifetime. Cheers from Seattle!
Many thanks!
Wonderful Videos, Thank You.
Thank you too!
This guy must have been such an awesome professor. I wish I could have been to some of his lecture.
Wow. Incredible to know more about what's going on underneath Monterey Bay! Bay Area landscape artist here that loves learning about geology from your channel! Would love to see even more about the state of California!
You are a wonderful teacher. Who would have imagined those fans?
Maura
Turbidites - that's a word I learned from Nick Zetner and Brian Atwater. Even a old goat like me can learn a thing or two! LOL 😂 Edit: those extremely long sea-bed rivers are more than just turbidites. Perhaps a different name for these?
GeoTube unite! I ❤ nick zentner.
It's what you get if you eat too many beans too quick!
I took several geology classes in college taught by a guy named Andy Buddington. He was friends with Zetner and was one hell of an instructor.
If public speaking I would pronounce it turdbites. Something nobody would snack on.
Lol AND an emoji! I don't think you can call yourself an old goat yet. Go easy on yourself
So glad I clicked on this video. Your passion and knowledge is very apparent, and you are able to create superb presentations. Thanks!
Thanks for the educational content, those landscapes are so cool!
It is a fascinating subject. At one of this years Submarine Networks conferences, one of the topics for discussion was faults. While fishing is the primary cause, geology still plays a major function. The Congo basin has been especially challenging. Large rainfall events during the annual rainy season leads to build up of deposited material. This can be somewhat unstable and when it then moves en masse it can cause submarine faults. Understanding this is extremely important as we can make better decisions on cable construction (more armouring rtc) and laying (routing, burial depth etc) to make them more robust
interesting
You always present information in a consumable and enjoyable way. Love watching them and learning, thank you!
Myron, I'm not sure how I found your channel but I'm so glad I did! Geology has never even been on my radar but now that it is, I'm diving in head first. I love hiking the Rockies and you've just shown me a way to enjoy it even more!
Awesome! Thank you!
Having taken Nick Zentner's online course on the Juan de Fuca plate and surrounds... really interesting how this all fits together.
Hello fellow Zentner student!
@@laughingoutloud5742 Greets from the Rocks!
“How this all fits together”
Thank you for sharing your knowledge of this subject. I love looking at satellite images and did not understand the ocean floor images and why some where smooth and other areas raw and ruff I went directly to ocean floor images and my understanding now has opened my mind. Thanks again.
17:04 -- The 7.2 earthquake in Newfoundland, Canada (which cut 12 submarine cables) occurred on November 18, 1929. (1929 Grand Banks earthquake)
Thank you Myron! Half an hour flew by and I was totally engaged the entire time. You remind me of my favourite geology professors - absolutely brimming with knowledge and passion for geology, and able to hold the attention of those they are relaying the information to the entire time.
(Also thank you for including metric)
That explains some of the features I have noticed on the sea floor. This puzzled me greatly since the features looked like land surface erosion features. My mind tried to come up with scenarios that could explain this. This video did a much better job!
We are familiar with "suction" where a sinking ship pulls the water around it down in a column as the unfortunate ship falls to the ocean floor. That a similar column is formed when sediment rich freshwater hits saltwater, and the sediment precipitates downwards, carrying a river of water with it much the same as a sinking ship does works similarly, physics wise.
Only a minute in and so far I love the way you narrate this! Just honest, open commentary and discussion. It's refreshing.
Spectacular! Thank you! I had no idea that we had such detailed maps of the seafloor. I found myself wondering about some of the more regular features there, straight lines and such and if these might be anthropogenic in nature.
Contrary to what Frank Lloyd Wright believed, there are plenty of straight lines in nature. One of my favorite examples is Split Rock in Linville, NC, mostly because it's local to me.
With that said, there're multiple places with evidence of civilizations that were submerged by rising sea levels, so we'll surely find more!
Im really enjoying this. Finally some good informative geology that isnt just trying to wow me the whole time. It knows it’s interesting and calmly gives me the info. Gives me a feeling that shows havent given me in a long time. Thanks!
Awesome, thank you!
Learning from you is easy . I enjoy listening and learning to all you talk about . It's a wow for me. But I do love Wyoming. Blessings
Thanks for watching!
Man this is just fantastic. Thanks for making geology fun again. It’s been a while since a “science” channel here has been able to hold my curiosity longer than four minutes 😅
Wow, this video was just pure geological delight. Thank you so much!
Wow, thank you!
This video showed up in my recommended, and im so happy i have found this channel. You love what you do and so do i, excited to see all the videos on your channel now!
Awesome! Thank you!
So interesting! ❤ Thank you so much!!
This is one of your best videos so far. Turbidity currents are fascinating, and this explanation, and the history of science part is very well done.
Props to the Mr. Rogers of geology to help us laymen understand. Respect.
As I get older I find these topics WAY more interesting. Subbed - this channel looks like a great ride - thank you!
Wonderful! On that bigger scale it makes me wonder now if it was Turbidites that formed some of the river-like channels on Mars.
Someday I'll get caught up on all your past installments. So much more fun to watch than the news!
Another fantastic presentation Myron. Any chance of adding the link to the sea floor images?
In the description
Myron, finding your channel is one of the joys of digging through TH-cam.
I've been seeking information on the underwater artifacts for 3 to 5 years, starting with the Hudson River canyon near New York City. Myron you are the answer to an informational prayer for the last 3 years. Thank you so much. Obviously subscribed. I will joyously be digging through your playlists for weeks.
Welcome aboard!
I grew up on the banks of the Lower Mississippi River and I was always amazed at the force of the river. Once I became an adult and learned even more, I stand in awe by the “Father of Waters.” We’ve been able to redirect and push the river in this way and that way, but that’s just temporary. Mother Nature will find a better way to the Gulf.
This is so awesome. I came across these channels a couple of years ago on my own while exploring on Google maps and consulted with a few friends including a geological engineer. We were perplexed by the association of rivers to these features but never something as sophisticated as your explanation. Fascinating!
What a coincidence, I was looking at these channels on Google Earth a couple days ago and wondered if you would ever make a video about them. They are truly fascinating features but what I find most exciting about them is that they may help us discover rivers that no longer exist. For example there is speculation that a large river system existed in the western Sahara when that region had a wetter and more temperate climate. On land any such riverbeds have long been buried under the sand but but at the ocean floor these channels still exist. Looking at the USGS map there are multiple canyons cutting into the continental shelf off the coast of Mauritania and one, the Arguin Canyon, extends far out into abyssal plain. Perhaps this is evidence of such an extinct river?
Wow, that makes a total of 3 people who either thought of this same subject just before or just after the publication of this video! Spooky!
Myron, your videos were very good when you started, but you keep getting better and better. This last one was really very, very good. I have some small sense of how much time, work, and money you have put in to these, and I, for one, am floored by your effort. Absolutely superb work, and a shining example for others. Much respect.
Wow, thanks
Geologist: "Ahh, yes. I think I know what's going on here..."
Mother Nature: "We'll see about that".
You know what? I'd LOVE to dive into those continental shelf canyons, just knowing that I'd be in two worlds at the same time.. an under-water valley, following a pre-historic river bed, cutting through a canyon, all underwater... It's stuff like that which ignites my passion for Geology. I absolutely love Geology.
Found your channel and binged watched every single one of them over a few days! Love the way you teach, you made geology fun to learn. Thanks so much for taking your time and making them Mr. Cook!
Awesome! Thank you!
I used to hate geology back in high school, but you managed to make it fascinating. I really felt like a soil detective, trying to uncover some mystery, and the whole process was so interresting ! Thanks a lot, you won another subscriber !
This one is going to be watched more than once in my house! Very interesting! Thanks for the link!
Wonderful and informative and interesting. Please keep your videos coming.
Douglas
Absolutely wonderful wonderful video, thank you so so much for the sea floor resources link!!
this one was particularly interesting. ive wondered how these channels are created, thank you.
I find it fascinating that the underwater rivers show the same meandering as surface rivers.
Wow! Those trees you draw to indicate horizontal perspective; they're a quarter of the size of Mount Everest.
Hodge
Thaaaaank you. This is pure gold. U have been wondering for years now, what these channels are. Getting finally a nice answer is literaly gold for me.
I gotta say , this is the first video I’ve seen from you , and I really appreciate you’re enthusiasm and your wealth of knowledge. This is A-1 , high grade , Quality stuff .
Thanks!