Buried by 2,500 Feet of Water; The Altai Megafloods
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- Опубликовано: 25 июн 2024
- Approximately 15,000 years ago, a wall of water more than 750 meters or 2,500 feet in height raced across a section of southern Russia. As this flood quickly overflowed the natural boundaries of river channels, it began depositing house sized boulders on cliffs, and creating giant ripples in the landscape. In the span of only a few hours, the river valleys were deepened by more than 100 feet and hundreds of feet thick of sediment were emplaced along its edge in giant bars. This flood originated due to one of the largest glacial dam bursts in geologic history, which permanently changed the landscape over a wide swath of Russia.
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Sources/Citations:
[1] P. Bohorquez, P.J. Jimenez-Ruiz, P.A. Carling, Revisiting the dynamics of catastrophic late Pleistocene glacial-lake drainage, Altai Mountains, central Asia, Earth-Science Reviews, Volume 197, 2019, 102892, ISSN 0012-8252, doi.org/10.1016/j.earscirev.2.... (www.sciencedirect.com/science...)
[2] Keenan Lee, 2004, "The Altai Flood", geology.mines.edu, geology.mines.edu/wp-content/...
[3] Jürgen Herget, Anna R. Agatova, Paul A. Carling, Roman K. Nepop, Altai megafloods-The temporal context, Earth-Science Reviews, Volume 200, 2020, 102995, ISSN 0012-8252, doi.org/10.1016/j.earscirev.2.... (www.sciencedirect.com/science...)
[4] Carling, Paul & Burr, Devon & JOHNSEN, TIMOTHY & Brennand, Tracy. (2009). A review of open-channel megaflood depositional landforms on Earth and Mars. 10.1017/CBO9780511635632.003.
0:00 The Altai Megaflood
1:25 A Massive Lake
2:00 Reaches the Caspian Sea
3:11 Triggering the Floods
The comments are rightfully comparing the Altai Floods to the Missoula Floods, as they were both highly destructive similar Ice Age era events! I do want to however note that there may be a point of contention in this video. Some people do not think the flood continued into the Aral Sea, although I interpret that it did.
Thank you for this really interesting video.
Don't know if you've heard about the research been done but it seems the much of the scablands might have been carved by a much earlier ice sheet that Bretz had been noticing. The Spokane I've sheet explains Moses Coulee and much of the formation of the Grand Coulee.
Paper was released back in April.
I wonder how loud all that water must have been. It probably sounded like a constant jet engine as it traveled.
@@MJIZZEL yeah I saw a video about that with one of them I forget lesseman or gombiner, and Nick zenter recently went into the hypothetical Spokane flood that bretz was thinking of, apparently there might be something to it, I suppose a subglacial flow straight down from the ice to Moses coulee would make more sense than trying to get enough Missoula water there to carve it
Don't forget the Bonneville flood too
Glacial giga-floods like this must have been a heck of a sight for any ancient humans unlucky enough to witness and lucky enough to survive.
They were. The local tribes remember them to this day and tell stories of precisely what happened and how they responded. Scientists ignore these stories as anecdotal, despite them being repeatedly proved to be truthful and accurate.
ruclips.net/video/mXjyBE-mB8M/видео.html
Kinda makes me glad to live in a weak modern world where we only get Beta floods... For once.
Just wait and watch the poles flip!!!
@@shcaskeySounds like your mind has flipped .
The ice dam crack was probably started by Scrat trying to hide that acorn.
Saber-toothed squirrels are such rascals.
Congratulations on 300K subscribers. I was watching for that.
Same ^^
Hear hear! The best geology channel by far and my daily goto for all things volcanoes etc. Outstanding! Thank you and here is to many more subscribers!
I remember Nick once mentioning the Altai floods but I wasn't aware of their massive scale and the fact that they created nearly the longest river of the world for a short while.
Awesome! I first heard of these altai floods in a talk by vic baker, reminded me of the Missoula floods, fascinating stuff
Nick Zentner has some excellent detailed material on his channel about the Missoula floods. These flood stories are amazing. I did not know about the Altai megafloods. Thank you.
congrats on 300k subs, highly deserved!
So basically borscht flavored Missoula floods
wish you would do a 10 or 15 minute video sometimes. but this was a cool video. thanks for your hard work!
I can only second that!
I third that! I love these videos!
Oh yes. I'd love longer, slower and more in depth videos. I mean he gets pretty in depth with these but I feel like there is probably a ton of info he has to gloss over for time sake.
Thanks for all of your hard work man!
That was most excellent!!
I have recently thought this, that the bosphorus was cut when the black sea flooded over into the Mediterranean, and not vice versa.
That's a very interesting idea. It shouldn't really be very hard for researchers to figure out which way, if either it went.
Events like these may have been the inspiration for the "global flood" tales that young Earth creationists believe in.
I hope you can do a video on the glacial runoff in the Mississippi valley during the late Pleistocene. I read one paper (Roger T. Saucier) that details how the melting of the Laurentide Ice Sheet produced pulses of significant flooding, even catastrophic flooding, continuously carving out the Mississippi valley for ~5000 years without lull.
So cool to hear about similar natural phenomena like the Missoula Glacier Floods! We should ask Nick Zentner to make a RUclips documentary on this topic with you! A great idea for a massive glacial flood documentary!
I didn't know about this. Cool!
Well Done, another informative and visually pleasing Geologyhub. Thanks.
There is a chance this may be origins of flood myths.
Yep and the storegga tsunami in doggerland
Honestly I think it’s the Burckle Crater in the Indian Ocean.
@@ciaranbyrne6878 this was the other thing I was thinking about, the Storegga Slide was insane.
No, there were only primitive tribes living at that time.
More likely flood wyths came from Black Sea deluge, that happened ~7000 years ago when water from Mediterrainean Sea broke through Bosphorus
Thanks as always! These megafloods, like the Altai megafloods and the Missoula megafloods, are very interesting. One wonders how they would have looked in the air or from space!
Glacial lakes such as the Western Siberian glacial lake are quite fascinating.
So cool! I love watching your videos, I learn so much every time, and never know what you're going to show us even when reporting on current events in Geology!
Thanks for that lesson. You cover such fascinating subject matter and do it very well.
Thank you. That was very well explained. I wonder if you'd consider doing a video on the Storegga slide. The videos that do exist tend to focus on the drama for anyone there, and make basic mistakes, like assuming the coastlines were the same as today, or underestimating the power and extent of the tsunami that it caused. There are cross stratification hummocks in Glen Clova. A steep sided glacial valley in eastern Scotland, and deep deposits of quarried sand many miles inland.
He has already done one.
I had to re-listen to the height of the water, assuming I misheard you. 750 metres?! 🤯
Thank you 🙏🙏🙏 very interesting 😍
Super interesting, thanks. 😊
This is a great topic. Good job shoehorning it into under 5 minutes and still mentioning the Missoula Floods!
Kudos for mentioning there are other interpretation of the data. That is the hallmark of scientific integrity !:-)
Great video. Love the geologic and climatic history.
Note also that the warming of the earth's temperature occurred without human activity.
You read my mind. I was just looking for videos about this flood starting yesterday.
This is right down my line of thoughts.
4:24 I used to Live there🤙🏼
Have you done a video on quick-clay landslides?
I wonder how loud all that water must have been. It probably sounded like a constant jet engine as it traveled. Maybe 100 decibels or more, especially with all the boulders in it.
Very interesting! I always find videos of the floods in North America, first one explaining the Siberian event.
Thank you for this video about the Altai floods which I had not heard about but I can only imagine how many of these natural occurrences happened over time during this current Ice Age period. We see lots of content about North America of course but not enough great content about the Siberian regions.
Very good to hear about other Mega Floods, besides Lake Missoula - But, on a technical note - just how BIG, Deep, thick would an Ice Dam have to be to hold back that amount of water? There's no doubt mega floods tore across landscape and caused enormous change - BUT, what could have caused that glacier to melt so rapidly (when I've heard it could take thousands of years for the Arctic ice packs to go with just a couple degree temp increase?) and if the dam was holding back such an enormous quantity of water, why was it not melting at the same rate? Is it a bit of a misnomer to call it an Ice Dam? Is it really an accretion of land, ice and rubble, perhaps miles thick, or perhaps an area of bedrock which finally gives way under the enormous pressure of the melt water? Do we have any engineers on board who could work this out?
It is a fascinating subject - because, should whatever happened to the Ice Packs before happen again, people in its path would be history. Some great pictures to illustrate the event, awesome.
Now please explain the erosion in the Colorado plateau! It was clearly an even larger flood, starting around 7,000’ elevation. Where did that water come from?!?
Amazing.
That’s really interesting
Thanks Tim. We, as a culture, tend to get North American Continent tunnel vision and forget the last Ice Age occurred all around the hemisphere.
And the Southern Hemisphere too.
@@davidcranstone9044 -- Yes, David, you're correct.
Many people arguing about biblical floods and the alleged validity because their occurrence world wide, need to realise that the end of the Ice Age occurred on all continents and most if not all ice deposits produced enormous floods. Geologists like Vic Baker has examined the impact of these floods in the Altai region and has postulated the impact on the Caspian Sea, Black Sea and other Asian water bodies. Can anyone point to any of Vic Baker's publications on these floods?
Ice dam goes boom.
Blame Scat lol
It seems like dendrochronology performed on buried logs should be able to establish the exact year of the event. That probably won't happen until crowdfunding sponsors the work. I wonder if this is a good place to seed such efforts.
Somewhere, a Scrat has its acorn.
Half of modern European genetic stock comes from that region during that time. Maybe that was even the reason why they migrated to Eastern Europe, the Caucasus, Iran etc..
excellent! been looking everywhere for this info on Eurasia to compare to proliferation of North American Younger Dryas videos. Thank you!
8 times!! the discharge of every single river on this rock!! Thats absouluty bonkers to try and fathom
MegafIood Water
Are you saying that the glacial dam was holding back a lake with a depth of 750 metres? The strength of the material glacial ice is compromised by numerous cracks and crevasses and the hydraulic pressure would seem to suggest there will be a limit to the mass of water that could be held back. Are there other potential explanations for the floods?
All that glacial till being spread around on floodplains would result in high soil fertility.
Why do I get the feeling that a saber tooth squirrel had some part in this😂
😂omg thank you for that callback, amazing.
I wish I could of witness those ice damn crashing with all that water pouring through!
I was there in a past life. I surfed that shit; so rad!
Good thing Noah built a boat 🚢
It is technically all a guess, but.... I love to think about it. It seems like there is evidence of these types of things that I notice in the USA..... Thank you for the video.
How is the travel time of the flood known so accurately? eg reaching the Aral Sea by hour 27?
Anyone wondering about the widespread prevalence myths of massive Floods all over the world, imagine the cultural impact of any of these events on the local hunter gatheerr tribes who witnessed these awe inspiring events, and survived. Thinking "the whole world" flooded would not be an exaggeration, for all intents and purposes ,and of course these early humans would see things through a religio-mythical lens
I seen the Washington states Grand Canyon.
So this could be this explanation of the biblical flood
As i remember this flood is caused by a random primitive squirrel who tried to crack a nut on top of ice wall
Please factor in the tilt of the planet❗️
IEEEEE!!!
1:06 novoSIbirsk like sibira
cut through in seconds
So basically the Caspian Sea is the remnants of that flood in a way.
13000 yrs ago. Is awful close to the younger dryus .
This Flood Race presaged the 1950's US-USSR Arms Race.
What does that have to do with the information in this video?
Nah bro went to creative mode and poured a bucked of water 💀
there are currently vast glaciers in several places on earth. why do we not see these types of massive floods today ?
Vast glaciers? Compared to the ice age earth, we have 0 ice today
@@10khz97 you are aware we are still in an ice age, correct ?
just in an interglacial period.
and yes vast, there are two glaciers in Antarctica larger than the lower 48 ......
Rumor has it you are neither hairy nor a woodsman.
You should learn about the previous ice age(s) and the resultant flooding.
The "vast glaciers" present today are small in comparison.
@@cabot100 in comparison, but still vast by todays standard.....
@thehairywoodsman5644 earth wrapped in a few km thick layer of ice is my minimum requirement to say " ice age"
Marvel not Eze 9 heart stabbers even gave stampeders chase they having procrastinated Impact Zones, US States Of BBQ, too long: EXCEPTION US GEORGIA’S COAST!
Just weeks past I witnessed these events floods to mudslides to pyro-caustic clouds. Actually lately mocked as cities to towns to states being swallowed up by a movie, Mortal Engine super predator! I know THEIR extreme Ps 2/Rev 6, 6th seal mockery just keeps getting more and more extreme! HBOW/Apb
Durring the last iceage. The iceage was about over when it happened plunging us back into one for a short time
The source of Noah's flood myth?
Noah's mild wetting sounds tame compared to this apocalyptic flood.
And every other flood epic in all religions and regions
11:56 am?
*Imagine the water coming towards your village* ------------------ you have two choices ----------------- *Run - or grab a Surf-Board* 🏄🏄♂🏄♂
Uh... Kind-of redefines the term "Meltdown". Pure EFFECT.
Cause in-question.
ONE POSSIBILITY I have encountered:
Glacial maximum pointed the North Pole more directly at the Sun. Geologically "Brief" meltdown changed the salinity of the Oceans and raised the O² content of the Atmosphere. Mini-Ice Age 10-25 thousand years follows.
But the "fuse" has been lit: Explosive growth of plant life South of the Ice increases CO² levels in the Atmosphere. Greenhouse Effect "machine" fires-up. It cascades causing rapid (centuries-to-millennia) meltdown. Glacial Ice-dams hold back meltwater then rupture...
WELCOME TO THE GLOBAL BADLANDS...
... Ocean levels rise...
DAWN of the Age of Mega-Fauna.
Humans proliferate.
The Sun slides into Middle-age.
Melting Glacial Ice and Tundra belch CO².
GLOBAL WARMING with a Purpose: Cause leading Effect.
Ultimately, one guess (theory?) is as good as another but... They can't (in totality) ALL be correct.
Took you so many years to realize the flood are truth🤦🏼♂️🤦🏼♂️🤦🏼♂️🤦🏼♂️🤦🏼♂️
The last extinction event.....
Just regionally.
These floods happened all over the northern hemisphere of earth at the exact same time because of the younger dryas impact of asteroids or comet that hit earth. Always thought it was silly when they wanted to blame humans for making all the giant ice age animals go extinct.
Ikr.
It is the agenda of carbon taxes
You've got an agenda and it's not about learning geology.
@@TheDanEdwards Your agenda is to be part of the climate nuts that blame everything on man. Back to your basement
@@TheDanEdwards your agenda is to protect the New World Order.
Useless idiots gatekeeping
The timing is off, apparently by up to two millennia, although it is just possible they were simultaneous. Anyway, it will be a long time before we know whether the end-Pleistocene comet strike in North America c. 10,800 BC actually triggered or worsened the Younger Dryas cold spell, or if it was just an odd coincidence. And, we don't know if it or they struck the ground, or the effects were all from air bursts. Thus far we have reliable evidence only of air bursts.
But, yes, blaming sudden mass extinction of dozens of genera of megafauna on people who had already been in North America for tens of millennia turns out to be pretty silly. That said, humans were hell on mammoths. And, amazingly few people know about the 37kya Hartley mammoth butchery site in New Mexico reported by celebrated paleontologist Tim Rowe.
Oh come on. No amount of ice collapsing into the ocean is going to cause a tidal wave 2500' in height. That can only happen from the sinking of a continent, like Lemura or Atlantis. The timeline is very close.
@oriraykai3610 - This was not a tidal wave in the ocean - it is called a "glacial outburst megaflood" in the video. It was the actual height of the flood waters themselves from ground zero. Listen to that discharge rate! Re-watch the video.
Again approx 12500 years ago the ninth planet showed up showering our solar system with metiors. The earth was struck and shift our axis to a less severe seasonal difference. The winters and summers used to be very severe. Thus freezing to flooding....
No evidence as yet for a 9th planet. (Pluto! We miss you!)
Oh yah 2500 ft high, that was the ocean standing still while the earth shifted. Noahs flood.....
"Noahs flood....." - you mean Gilgamesh's flood.
Who? Oh that fairy tale. Ok.....
Fiction.
How did the environmental impact studies ever allow this to happen! This is what happens when you don't have enough coal fired power stations to supply EV elk and bison