Explore Mysterious Rivers On The Deep Seafloor

[@myroncook]

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.

[@gregorysagegreene]

You're a very good clear teacher, and now I know that rivers, deltas, and channels continue far, far out undersea.

[@thehimself4056]

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

[@54326dustinearls]

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.

[@sandra-RUOK]

I appreciate your lengthy descriptions, geology like astronomy is an opportunity for me to escape the “worldly world of human concerns”…..lol

[@mawi1172]

You ain't google, you're Myron😮😮😮😅😅😅😅😊😊😊😊😊😊😊😊😊😊😊!✝️🙏🇺🇲✝️🙏🇺🇲✝️

[@joshuapatrick682]

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!

[@myroncook]

Wow, thank you!

[@guilhermeborsa]

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!

[@JonnoPlays]

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.

[@yj965]

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!

[@eaglemoose56]

Ditto!!!

[@wrp3621]

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 .

[@rdbarne]

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.

[@MusicLovingFool1]

hello...there was a great flood. LOL

[@cmdrgraves3308]

@@MusicLovingFool1Religious nutjobs need not apply

[@igrim4777]

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.

[@doug-says]

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.

[@b.a.erlebacher1139]

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.

[@myroncook]

Thank you!

[@alexandermoorehead3200]

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.

[@myroncook]

Well said!

[@sawyerkaarto9189]

Best Geology content on KZbin, well done!

[@michaeldeloatch7461]

Best geology content on planet Earth!

[@321ssteeeeeve]

Content is sublime loaded with wisdom

[@drzoidnilsson73]

I'm not even into Geology and don't know why KZbin 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...

[@19nuances]

GeologyHub also does some good content too

[@doctorsavage84]

Seafloor gold

[@GreenDeemonll]

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!

[@dj-kq4fz]

Thank you, Myron, these videos are really enjoyable. The drone work is always spectacular as well! Dave J

[@KaranBhatia]

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.

[@joemug4079]

Myron, it’s 12:30am Saturday night….and i’m watching your totally captivating talk on the ocean floor. Love your channel.

[@myroncook]

Wow, thank you!

[@Roarmeister2]

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?

[@ladyeowyn42]

GeoTube unite! I ❤ nick zentner.

[@danibot3000]

It's what you get if you eat too many beans too quick!

[@brianshissler3263]

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.

[@andypetrovich2155]

If public speaking I would pronounce it turdbites. Something nobody would snack on.

[@michaelhead7483]

Lol AND an emoji! I don't think you can call yourself an old goat yet. Go easy on yourself

[@NikosThDr]

This is one of the best geology channels on KZbin ever! Thank you for the effort and your amazing results!

[@johndoyle7480]

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.

[@Sgrunterundt]

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.

[@inyobill]

@@Sgrunterundt ditto

[@David-gh6vp]

Not ridiculous. Generally, correct, Imo. Meandering makes sense to me as this indicates the slowing of the river at various points.

[@MARILYNANDERSON88]

Salinity and temperature gradients moving water may create channels as well as the gravity force of elevation gradients

[@inyobill]

@@MARILYNANDERSON88 So much to learn, so little time ...

[@veronicaeverett3683]

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.

[@myroncook]

Glad you enjoyed it!

[@MellnikMary]

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.

[@aurifaber81]

Great comment

[@YogiMcCaw]

Myron and Nick Zentner of Central Washington University are my favorite geologists on KZbin. 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!

[@myroncook]

thanks!

[@purelyrod9310]

I actively follow several geology-related KZbinrs. 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!

[@AssassinAgent]

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

[@myroncook]

thanks!

[@PerkBuilders]

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!

[@KaranBhatia]

Interesting theory. But would this lighter seawater-heavier fresh water thing continue for 2000 kilometers like in the channel under the Ganga/Bengal Delta?

[@KaranBhatia]

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.

[@PerkBuilders]

@@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).

[@kokvad]

Salt water is heavier than fresh water.

[@PerkBuilders]

@@kokvad well there’s a really big problem for my theory. Haha.

[@alayneperrott9693]

Very enjoyable and educational. The outcrop and the seafloor maps make things much more real. Thank you.

[@HannahRoot55]

Perrot

[@a787fxr]

You're presenting everything so very eloquently and clearly. I think that I should get educational credits and possibly a KZbin 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.

[@myroncook]

Wow, thank you!

[@brothermaleuspraetor9505]

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.

[@GreenMntMoto]

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!

[@myroncook]

safe return!

[@michaelimbesi2314]

Fair winds and following seas

[@magnithorsson2154]

This channel was randomly recommended to me on the frontpage of KZbin 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.

[@myroncook]

cool

[@harrietharlow9929]

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 KZbin University!

[@jeremynewell9903]

Thank you for the metric conversions. I appreciate it. Another fascinating video!

[@HannahRoot55]

Newell

[@johnderatt3168]

Thank you, Myron, always a pleasure being taught by you!

[@autisticsimon12]

Youu mean endoctrinated dont you?

[@Bryzerse]

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!

[@BlGGESTBROTHER]

Woohoo! New Myron Video!

[@at_3831]

Let’s send Myron and Randall on a summer expedition followed by a film crew and the bright podcast friends

[@mikejones-vd3fg]

@@at_3831 Id like to see Myron on Mars, make sense of all that geology.

[@ThumbDr]

Who the hell is byron

[@2200Stinger]

@@ThumbDrDamn, you beat me to it by 3 hours.

[@FarmerDrew]

Great video! Keep up the excellent work! I grew up on a small ocean-going sloop. The depths never cease to amaze me.

[@PRND21]

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!

[@lunatricky1686]

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!

[@myroncook]

Wow, thank you!

[@theoneyoudontsee8315]

I love your teacher like presentations! the level of detail is so nice to actually not end up with more questions at the end of a 30 minute video!

[@antred11]

It's like he's the Bob Ross of geology! :D

[@debrunyon8039]

This is an outstanding presentation! Myron never disappoints 😊

[@HannahRoot55]

Deb 😮

[@fransmars1645]

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!

[@twotone3471]

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.

[@vvinniem8907]

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.

[@sailawayteam]

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.

[@nickt9916]

Complex ideas explained clearly, simply and engagingly. Thoroughly enjoyable. Thank you.

[@shaneflickinger]

What a fascinating topic. Thanks for the video Mr. Myron.

[@robinpayne125]

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.

[@HannahRoot55]

Hey Payne 😊

[@Reziac]

Having taken Nick Zentner's online course on the Juan de Fuca plate and surrounds... really interesting how this all fits together.

[@laughingoutloud5742]

Hello fellow Zentner student!

[@Reziac]

@@laughingoutloud5742 Greets from the Rocks!

[@coltoncarey7042]

“How this all fits together”

[@craighoover1495]

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.

[@nobody8328]

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!

[@michaeldeloatch7461]

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.

[@DanielleGlick]

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!

[@HannahRoot55]

Hi Danielle

[@lilguyfinish]

idk why you are dominating my feed as of late but I am blessed everytime. great work!

[@keyscook]

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!

[@myroncook]

Many thanks!

[@houseofsolomon2440]

Living on the FL gulf coast, I appreciated seeing the Mississippi alluvial fan highlighted. Thanks for posting! ☆

[@Jesse-ri5ud]

Only a minute in and so far I love the way you narrate this! Just honest, open commentary and discussion. It's refreshing.

[@daleeason9687]

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.

[@myroncook]

I wish your dad and my dad could watch them

[@MelanieCravens]

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. "

[@gaiagruel]

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!

[@myroncook]

Awesome! Thank you!

[@ReduceGHGs]

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!

[@botto8099]

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)

[@Skunk106]

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.

[@Dilbert-o5k]

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

[@DoesNotSniffTurtleFarts]

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!

[@myroncook]

Awesome, thank you!

[@overdoneone]

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.

[@junkmail4613]

Myron, finding your channel is one of the joys of digging through KZbin. 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.

[@myroncook]

Welcome aboard!

[@Stroopwaffe1]

Great Stuff, love listening to this guys accent. Thanks for your work, Scotland. UK.

[@MarcRasp]

this one was particularly interesting. ive wondered how these channels are created, thank you.

[@mikelong9638]

Thanks Myron. You have a way of describing geology that always stretches my imagination. There is so much more to be learned.

[@myroncook]

Glad to hear that!

[@andyrbush]

I did geology as an extra curriculum study at university when studying mechanical engineering, It was absolutely fascinating. This video is superb I will subscribe.

[@myroncook]

thanks!

[@Veeger]

I always wondered about these channels round the UK. Thanks for the vid!

[@wendygerrish4964]

Um besides. Doggerland

[@Veeger]

@@wendygerrish4964 No, the UK sits on a shelf that has these canyons running off into the deep. What was Doggerland is actually fairly shallow.

[@isabellame7326]

This one is going to be watched more than once in my house! Very interesting! Thanks for the link!

[@MelMitchJackArt]

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!

[@maurasmith-mitsky762]

You are a wonderful teacher. Who would have imagined those fans?

[@HannahRoot55]

Maura

[@kevinbyrne4538]

17:04 -- The 7.2 earthquake in Newfoundland, Canada (which cut 12 submarine cables) occurred on November 18, 1929. (1929 Grand Banks earthquake)

[@maellelamour8216]

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 !

[@tiffanycechowicz9418]

You always present information in a consumable and enjoyable way. Love watching them and learning, thank you!

[@schmartz99]

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!

[@myroncook]

Glad you like them!

[@artificercreator]

Thanks for the educational content, those landscapes are so cool!

[@jrherita]

As I get older I find these topics WAY more interesting. Subbed - this channel looks like a great ride - thank you!

[@Skeletors_Closet]

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.

[@spef7396]

First time coming across this channel, exceptional! Very informative and relaxing; I will definitely be making my way through your back catalogue, keep it up!

[@myroncook]

Awesome, thank you!

[@toddrodgers5108]

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

[@myroncook]

Thanks for watching!

[@bluestraveler2980]

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.

[@blackhawk7r221]

Props to the Mr. Rogers of geology to help us laymen understand. Respect.

[@roshaan]

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!

[@imagseer]

Wonderful! On that bigger scale it makes me wonder now if it was Turbidites that formed some of the river-like channels on Mars.

[@kennethhodge7953]

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.

[@HannahRoot55]

Hodge

[@RoninDosho]

Wonderful Videos, Thank You.

[@myroncook]

Thank you too!

[@esmenhamaire6398]

That was really interesting, thank you! I'm retired, and not particularly into geology, but a bit of a science geek generally. It occurs to me that the processes involved in what you've shown us here are likelyvery, very similar, as you said, to ones that cause riverine deltas, the difference in scale being down to the density and viscosity of water as compared to air. Being full of silt, the centre of the underwater flow will be a bit denser than water with less silt in it, and so have more cutting power.there might well be a slightly increased pressure in the middle of the flow, which fades away the closer you get to the edge of the flow. I'm surprised that the entire sea floor hasn't been mapped to the same level of detail by now! I'm also wondering if there is any data on the pressure at the sea floor along a transect of one of those channels, along with water velocity/ I love learning new things, even now I'm retired. Thank you, Myron - you have gained a subscriber! :-)

[@Hossak]

Wow, this video was just pure geological delight. Thank you so much!

[@myroncook]

Wow, thank you!

[@nablamakabama488]

Thank you for putting in the metric translations. I know Americans are the largest English speaking group of viewers, but many content creators forget that the rest of the world uses the metric system, forcing me and others to constantly interrupt the video and get the calculator out. It’s nice to include the metric measurements.

[@Klyis]

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?

[@KaranBhatia]

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!

[@rabbitweasel]

I have no background in geology but these kinds of high quality research videos are what I appreciate finding on KZbin.

[@schnauzpig]

Another fantastic presentation Myron. Any chance of adding the link to the sea floor images?

[@myroncook]

In the description

[@warpeace8891]

Outstanding once again. You are doing a great job and the information you provide is of the highest quality. Like an audio/video textbook. Many things look like common sense only AFTER the hard work has been done to solve mysteries and answer difficult questions. Thank you for sharing.

[@Babbajune]

So interesting! ❤ Thank you so much!!

[@orange-rose07]

I've always found underwater rivers and currents intriguing and mysterious. You gave us the best explanation on this topic 😀

[@anthonybentley6611]

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!

[@DavidRamirez-eo1nf]

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!

[@myroncook]

Awesome! Thank you!

[@xybey9785]

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.

[@veronikalynn5084]

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 😅

[@synapsomorphy]

I never would've thought I liked geology, but I clicked on this video and 7 mins in I'm hooked! Such a great storyteller!

[@CanadaLuke]

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!

[@myroncook]

Awesome! Thank you!

[@landenx]

So glad I clicked on this video. Your passion and knowledge is very apparent, and you are able to create superb presentations. Thanks!

[@Droxen222]

Once again! Beautiful video, honestly stunned by your abilities to articulate all of this. You must honored one day for your ability to educate. Just wow. (I AM NOT INTO THIS STUFF) I am a gamer with a questionable attention span. But once i stumbled across your videos, i was stunned by how you can keep my attention glued to the screen. I would normally move on to the next dopamine fix on the internet. But again, wow. You somehow make geology fascinating. I applaud you! and pray i win the lottery so i may help you reach out to the masses better! You belong in every science class across the world. Please keep it up, and have fun doing it!

[@myroncook]

thank you for such a nice compliment

[@piggosalternateaccount4917]

Absolutely wonderful wonderful video, thank you so so much for the sea floor resources link!!

[@charleswillcock3235]

You have a fantastic presentational style, and great content.

[@HannahRoot55]

Hi 😊

[@patricknorton5788]

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.

[@douglasrank-im1gp]

Wonderful and informative and interesting. Please keep your videos coming.

[@HannahRoot55]

Douglas