Dating the Ice Age Floods

[@donfingers3320]

I never could of dreamed the rabbit hole this video would lead me down when I first watched it 3 years ago...and now I find myself back for another go around, I guess history really does repeat itself. Thank you Nick, it's been one hell of a ride so far!

[@samuallance1395]

Love, love, love this professor. He brings geology alive and makes it sooooo interesting. My grandchildren love to watch his videos with me. Layman's terms and explanations that he does so well.

[@tomiantenna7279]

Jokes aside- mr. Zentner is simultaneously pure treasure and true pleasure. He is such an engaging, knowledgeable and *present* lecturer, and displays the exact same kind of enthusiasm and reckless curiosity that moved us, his audience, to attend his lectures, or watch them with no less fascination from the comforts of our homes spread out all over the world. So I would like to thank you, Central Washington University, and You, distinguishable mr. Zentner, and all the crew whoever they may be, for sharing this priceless gift and categorical example of the true soul of science. SCIENCE ROCKS, MR. Z! Regards.

[@jasmineluxemburg6200]

I am blown away by this presentation. I was always fascinated by the impact of the ice age on the landscape. When I was young friends said I should study geology. but I hated boring Victorian classification - and did not want to do that. NO way. But the subject became dynamic eventually and this Guy exemplifies this. The footage, the compilation of footage, awesome ! Now I am in my seventies and still fascinated. Everywhere I go I scan landscapes and imagine their history. I will carry this presentation with me in my mind now, everywhere I travel -and I travel a lot. I ski, I hike, I cycle - all solo. No distractions. I look and try to imagine how the features I see came into being. There is one huge erratic in the upper Rhône valley I have passed many times. I look forward to it every time. Now after this detailed informative presentation I will see more. Thankyou so much all you guys who helped make this possible. (Yes I was a teacher, a design and technology teacher - which enabled me to do cross curricular stuff -) I still study. I am greedy that way, I never stop wanting to know more - amazing stuff you present. My eyes will see so much more now , thanks to this wonderful presentation.

[@corvuslight]

If you like this topic, please consider looking up Randall Carlson. He has studied this for over 40 years now and gives many excellent presentations.

[@SoilToSoul]

@@corvuslight I was going to say the same thing! His teaching style is captivating, his DVD set is great! I love even the more esoteric stuff, but his knowledge regarding the Younger Dryas boundary and the geologic information is fascinating! Highly recommend him.

[@garycates9911]

Jasmine , I live in W. Montana . The Missoula flood has been a large part of my life. I am 61 now. Stories ? Was conceived up the wagon hammer ; a drainage that runs into the river of no return. Saquagiweia was also born there. I am 5/8's native. Story's . Have you ever seen a scratch crotch? E. and N . of trapper Peak i have.Back in about 63 . If you are ever this side the ridge do stop. worm

[@lorimiller4301]

Hi, I think it's wonderful that you are willing to get out there and wonder what it is that you're really seeing. Have you come across Mudfossil University or Wise Up on your KZbin adventures? You may also enjoy Jon Levi and all the new channels popping up to point out mudflooded buildings in their town. So many things are different than what I was taught but it's exciting to try and figure out the truth now. ✨

[@rancepd]

Here is a fun video made with Jim Chatters on 60 Minutes and the Kennewick Man who came with him to explain how the floods happened and the 1st Americans. kzbin.info/www/bejne/lXSYmKmphMlloa8 RANCE DEWITT ON AMAZON BOOKS

[@johnwattdotca]

The Haida, of northern British Columbia, have very strong oral histories. They describe a tremendous flood, saying the only people to survive climbed mountains to climb the tallest trees, being swirled around by the water. Before that they describe the glacial era. After Jimi Hendrix visited a Haida village when he was on tour, a new song he wrote had these lyrics, "the echoes of glaciers from long ago", a reference to striations he saw.

[@Apanakhi]

Spokane people have a similar story. If we truly want to know if people witnessed the floods then listening to the reports of indigenous people is crucial. Theirs is admissable evidenceNot to listen would betray a bias.

[@jimhenry3089]

tsimshian on the mouth of the skeena river also talk of a great flood escaped by climbing highest peak.

[@rancepd]

Here is a fun video made with Jim Chatters on 60 Minutes and the Kennewick Man who came with him to explain how the floods happened and the 1st Americans. kzbin.info/www/bejne/lXSYmKmphMlloa8 RANCE DEWITT ON AMAZON BOOKS

[@warrenoakley589]

i dont mean to be so off topic but does any of you know of a tool to get back into an instagram account?? I was stupid forgot my account password. I appreciate any assistance you can give me!

[@gibsonkellen444]

@Warren Oakley instablaster =)

[@davidchellberg9736]

I incorporate a lot of the information I’ve learned from your lectures in my bus tours of Seattle. Thanks so much for making Geology so accessible.

[@Ellensburg44]

Great to hear, David. Thanks.

[@rancepd]

Here is a fun video made with Jim Chatters on 60 Minutes and the Kennewick Man who came with him to explain how the floods happened and the 1st Americans. kzbin.info/www/bejne/lXSYmKmphMlloa8 RANCE DEWITT ON AMAZON BOOKS

[@jahnbon]

Nick, your clarity and elucidation make you a great teacher, and a national treasure. I am lucky to live in the same glacial period as such a fine scholar. Cheers!

[@bigdaddy4432]

I really look forward to your lecture posts Nick, I cant remember ever wanting to hear a lecture like I do when you speak about Geology.Thank you for sharing your knowledge and enthusiasm with everyone and please keep posting these!

[@Ellensburg44]

Very nice comments. Thank you!

[@joanberkwitz2662]

I’m enjoying your lectures so much! This is the education that I yearned for but never got. Learning from a gifted professor like you is a joy and a blessing. Did you ever think that your talks would be watched by many thousands of people? Thank you so much for this chance to learn.

[@cindyleehaddock3551]

Still love Chris's animation. Nothing like humor to get points across. You are both killer artists! Thanks, Nick!

[@HATEYoutube33]

I feel so lucky to find this channel, What a great teacher

[@Ellensburg44]

Thanks much.

[@104thDIVTimberwolf]

Best on KZbin!

[@billiondollardan]

Me too! It looks like I found it a year after you did, but I still feel pretty darn lucky

[@Bowsniper73]

Great teacher! I’d like to see Randall Carlson and him have a discussion about the Ice Age FLood(S)

[@dd-jm1md]

@@Bowsniper73 they disagree...

[@kenflauding6041]

For years I’ve read about the Great Lake Missoula and the floods that shaped the Columbia River Gorge. Dr Zentner does a terrific job expanding and Educating on this concept! Over the last decade I’ve done several motorcycle trips throughout the entire six state region and have marveled at the geology! Thank you for answering some of the many questions I’ve had after visiting the areas. Now, I want to go back! I look forward to seeking out and watching his every lecture. I only wish I’d had instructors like Dr Zentner to inspire me when I was younger. It would have been life changing!

[@DMT-kk3dp]

The enthusiasm for the subject is contagious and reminds me of the many wonderful teachers I've been lucky enough to learn from! Thank you very much for your videos

[@anneschantl8929]

Excellent lecture. Regards from Adelaide South Australia.

[@byronking7266]

Such a pleasure to watch a very well-prepared, passionate, intelligent guy give a fascinating, science-based talk using naught but chalk & a chalkboard... and photos... while standing on a stage, with a curtain in the background and an American flag in the corner. Almost "old fashioned," and I mean that in the most complimentary way. Because this is how teaching ought to occur. This is how great teachers make great students who go out in the world to do great things. What an immense credit to the Geology Dept of Central Washington University... Something truly great is happening there.

[@Ellensburg44]

Thanks much. Glad you enjoyed it.

[@agiannetto]

My favorite video of yours so far. The animations were great, the archeological tie-in at the end, but by far, my favorite part was....The Fleeing RV! Well done again, sir.

[@Ellensburg44]

Thanks for the feedback!

[@rancepd]

Here is a fun video made with Jim Chatters on 60 Minutes and the Kennewick Man who came with him to explain how the floods happened and the 1st Americans. kzbin.info/www/bejne/lXSYmKmphMlloa8 RANCE DEWITT ON AMAZON BOOKS

[@Kleaz80]

Brilliant presentation. I’ve normally gotten my information about these floods from Randall. Stumbled upon Nicks a few days ago and his take is equally fascinating.

[@rancepd]

Here is a fun video made with Jim Chatters on 60 Minutes and the Kennewick Man who came with him to explain how the floods happened and the 1st Americans. kzbin.info/www/bejne/lXSYmKmphMlloa8 RANCE DEWITT ON AMAZON BOOKS

[@swirvinbirds1971]

Don't get your info from Randall unless you want pure misinformation. Quick way to debunk his hypothesis? Look up the Clovis Site in Wenatchee Washington. It's on TOP of a megaflood bar. Not possible unless the floods were before the Clovis culture was gone. And that is just the tip of the iceberg in facts that completely wreck his entire hypothesis.

[@maxinee1267]

Just wow, I am thrilled by the way you lead up to the storys and show us the evidence, and science of the lay of this land we are living in. so impressive. i cannot thank you enough for the education I am getting. Your u tube channels are the better than anything holloywood can produce. Bravo. and I am grateful and thankful for all you share.

[@killianoshaughnessy1174]

I've been re-watching all your past lectures while I workout, and I still find small bits of info that I missed. Your videos never fail to enlighten and entertain me. Keep up the good work, professor Zentner and to the production crew!

[@Ellensburg44]

Thanks. Feel the burn.

[@jamestheotherone742]

I now know more about the geology of th PNW than I ever wanted to, just because Prof. Zentner is such an engaging presenter. Bravo.

[@amyspanne5629]

I tried to date an ice age flood, but it gave me the cold shoulder.

[@tooligan113]

I just wanted a couple ice cubes for my drink!

[@switchjim]

don't let one frigid response break your resolve. Try again

[@mwhitelaw8569]

I wanna say thanks I needed the laugh

[@michaelrunnels7660]

Is that suppose to be punny?

[@garyha2650]

I was ghosted and felt crushed

[@jessicamoores181]

Nick is a Sheer Pleasure to watch, listen and learn. Thank You So Very Much for making these videos💕🇺🇸💓

[@kobehal]

Nick's one of the best 'chalkboard orators' to come along. Cheers.

[@ninefingersgrapes]

Thanks from ex resident of Renton(1978-1981), See that some of my explorations were covered by some of Prof. Zentner. Enjoy watching all of his presentations for the history of WA. Steve in Phoenixville, PA

[@Ellensburg44]

Thanks Steve. All of my stuff is at nickzentner.com if interested.

[@btajpb1891]

I believe that if this man gave a lecture on paint drying I would sign up. The subject is awesome to begin with but he truly brings it to life. The whole series of his lectures are tremendous.

[@ResortDog]

Thanks for sharing. My first geology prof was also a good lecturer that kept the class enthralled.

[@vipertwenty249]

Nick - I've no idea if you still look at comments on a video posted a year ago but just in case you do - thank you - you are re-kindling my interest in geology that's been rather on hold since I got a bit on the old side for rock climbing! I'm now going to go through every single video you've posted and binge geology!

[@lorimiller4301]

Pig out !! 😁✌❤

[@vipertwenty249]

@@lorimiller4301 I am!

[@rosemariemann1719]

I would never have thought I would be fascinated by Geology lectures 😊. Nick's amiable nature engages your interest. His style is full of information, but presented in an accessible way, to folk like me (73 ) who have no previous experience of this complicated subject. Great to see so many " grey heads" in the audience.😊. No wonder his students love him ! And he loves them back ! He ends some videos with "I love you ! " That is so nice😊 I really enjoy the hikes, too, where you feel as if you're there, joining in , and learning about the distant origins of the areas being studied. Now to rewind the Ice Age Dating and listen to it properly! 😊🇬🇧💕🌎⭐🇺🇲

[@stormysampson1257]

I've been jumping up and down! I KNEW you would finally, finally have computer generated animations of these floods!! WOW! I am an 'erratic' but my hubby got solidly entranced with your presentations, even without the high tech visuals! I wanna go back up there and 'see' this place again after your lectures. Or definitely in one of your 'tours'...omgosh! When I learned this stuff there was only ONE flood from Lake Missoula. Why do I love this information soooo much! Because of you Nick! Lucky lucky Central Washington University!!

[@Ellensburg44]

Thanks Sharon.

[@scottjustscott3730]

The loess hills @ 44:00+ remind me of the flint hills of KS. Specifically the area along I-35 between Eldorado and Emporia. Very scenic. Also very different as far as the geology is concerned.

[@Mike-wl7sm]

This guy is a great lecturer. How lucky the students are.

[@gatorlenta]

Nick, your video lectures are fantastic! I've been recovering from surgery twice over the past 6 months, so I've probably watched all (or nearly all) your videos while resting at home. Thanks very much for introducing me to all this fabulous geologic information about the Pacific Northwest. I look forward to seeing your future work, it is fascinating!

[@Ellensburg44]

Thanks and get well soon!

[@clairecelestin8437]

These lectures are so good! What a treasure!

[@americalost5100]

Great lecture and great animation at around 53:00...

[@tigerpisces5506]

I grew up in Vancouver, Clark Co. WA. We are across the Columbia River from Portland. There are huge granite boulders deposited in SE Vancouver above the river. I have been told these boulders are part of Montana Glacial Floods. There also potholes on the Lacamas and Lewis rivers. Was there glacial areas in Clark County depositing boulders from icebergs?

[@itsmootdamnitnotmute905]

My first year prof was genius at keeping us engaged in the subject. Her class was the reason I chose it as a major. However, as I progressed through my schooling, I discovered that if not an outright gift, that ability amongst Professional Geologists is a truly rare talent. Unlike Nick, most were dry as popcorn farts, seemingly proud of their ability to kill any enthusiasm with polysyllabic jargon.

[@scottmckenna9164]

What a hard working lecturer. He's humorous too!

[@shawnmann]

Absolutely incredible. Thank you so much for this information. I moved from Oak Harbor to Wenatchee a year ago, and every day I commute from Wenatchee to Quincy. The cliffs fascinated me from day one. I've been digging and digging for information, discovered that it's lava rock, discovered the reason I can see it (ice age floods tearing it out), but this video has given me the best information yet. THank you so much!

[@exisleorpheus7155]

I have studied or taught at most of the most reputed universities in Cambridge/Boston/RI/NH as well as GAU/Göttingen and ETH/Zürich. You are a singularly gifted instructor. Were you interested (and I fully understand why you wouldn't be), I'd recommend you for a position. Any institution would be privileged to have you. Pure teachers of your caliber are rare in academia

[@Ellensburg44]

Wow. Thank you for the compliment. I've had a lot of practice in the classroom. We like it here....but thanks much!

[@cartoonasaurus]

I totally agree - my major was originally Archaeology and I switched to Geology before settling on Art. Nick is a gifted teacher singularly concerned with communicating complicated ideas clearly and concisely! In Beloit College, we had another gifted geology instructor, Richard Stenstrom, who is now Emeritus - I still remember his sense of humor and his dediction... Hey, Nick - I grew up near Shaniko on a 7 square mile flood basalt playground covered in various periglacial morphology.... Lots of paleo-indian artifacts, too...

[@firefox5926]

the best teachers a 1 part educator 1 part entertainer 1 part surrogate parent oh and 1 part stand up comic and one part detective

[@firefox5926]

@@Ellensburg44 what i like about these things is is like who dunnit novel was it the yellow stone hot spot, was its the ice sheet, was it a tsunami, was it colonel mustard in the dining room with the pipe wrench? who knows, lets follow the clues and find out lol

[@firefox5926]

and no you can't have him grrr he's ours get you're own grrr :P

[@matthewsutton2241]

My respect for Mr. Zentner only grows with each video. I moved to the PNW (first Queen Anne in Seattle and more recently to an island in the Puget sound) from the Bay area of CA; these lectures have helped me contextualize the geologic history of the land between both locales.

[@SCW1060]

Nick thanks to you i have learned so much about our amazing State. You haven't only taught things that I never knew but also have inspired me to dig deeper into geology with a never ending hunger for geology

[@Ellensburg44]

Nice to hear, Scott. Thanks!

[@samorr4]

I have watched every one of your longer videos and most of them more than once. I think every video deserves a grade of A but this one gets an A+ !!

[@Ellensburg44]

Thanks much, Samuel. I like this one too!

[@Robnord1]

I see places I've seen for years with 'new' eyes Nick...thank you. So many things make sense, and enrich my travels around the state. Example; Yesterday from the top of Mt.Pilchuck, I was getting some glimpses of Glacier Peak, which I now know is a major volcano only 55 miles due east of my home! Reading the terrain with new vision thanks to you sir. : )

[@scottyfox6376]

Nick is such an inspiring teacher that he has made geology interesting to ppl who never cared for it before.

[@Wreckbeach400]

I grew up close to the glacial erratic located west of Okotoks Alberta (Big Rock) and as a kid I noticed an edge of rock that was polished to a glass like surface. I always assumed this polished area of rock was caused by thousands of years of bison using the rock to scratch their backs and shoulders on. Cattle today do this all the time when a scratch rock is available to them. Is there a way to date this rubbed area? Maybe by carbon dating the oils or rubbing area of the rock.This may help date when the Big Rock finally settled on the ground and the land dried enough to allow the bison to start using the rock as a hide scratching site. I would be interested in hearing a response from you.

[@mannymayer9250]

Just watched this video as well as others by Nick Zentner. I want to thank you for all. Although not a geologist, I would like to see future presentations in the future in person. Hope this pandemic gets over soon so can attend. I’m in Oregon and would gladly drive anytime to do so.

[@boydgrandy5769]

The only problem I have with the CGI version of the flood at Dry Falls is that, when it first hit, there was no falls, just as there were no channels down stream. The flood cut all of that within the space of hours. It was a truly violent event. I can't imagine the noise. I was close to a flash flood on a ranch near Chelan when I was a kid; just a little one with the initial flow only about 10 feet high and it carried boulders the size of a car. I sounded like a freight train punctuated by deep rumbling and crashes. It cut a 40 fool gully through our ranch in the space of 2 hours.

[@darkstar1449]

Not only that, but can you imagine the sound that 2 mile deep ice makes as it cleaves , suddenly melts, and rushes forth across the land

[@boydgrandy5769]

@@darkstar1449 I don't think the broken ice dam chunks immediately melted. The shards of the dam were huge, like icebergs in themselves, and were the vessel in and on which the exotics were borne to be deposited wherever the ice finally came to rest in the flood path. It may have taken several years for the bigger pieces to melt. I'm extrapolating the size of the things from the size of the boulders they carried; they had to be many times larger and of much greater mass than the hitch hiking rocks.

[@Kwodlibet]

I guess you missed the part where he very clearly states that there were (at least) 40 large floods in that area, didn't you? If not, then are you actually suggesting that The Dry Falls were created only during the last flood? Do you think the area was as flat as a pancake and all those 39 previous floods had no impact on the landscape?

[@swirvinbirds1971]

@@Kwodlibet so many miss this. 👍

[@jeffaxel181]

Another phenomenal talk Dr. Nick! One thing I heard from a geologist I think applies to those yellow concretions of clay/sand in the dark grey sand at that quarry near the Spokane Airport is that they were pieces of permafrost where the buoyancy of the ice and the weight of the minerals in the frozen chunk made them the same density as the rest of the loose sands, so they settled in place with the grey sands. Not sure if that is true, but it sounded like a good hypothesis to me. Also, great to hear you using the new Bonneville dates, regardless of whether it was 17.4kya or 18kya. The old dates that had been told for decades was around 14.5kya. If you ever get to Utah, check out Pahvant Butte, which was a cinder cone eruption that came up through Lake Bonneville. As far as humans witnessing at least the last few floods you could add to this talk is from a recent Oregon PBS Oregon Experience documentary on archeologist Luther Cressman who did the first research at those southern Oregon desert caves. His successors have now found human-affiliated items that date to over 15kya in the area around Fort Rock.

[@Ellensburg44]

Thanks Jeff!

[@judgegixxer]

Nick is awesome, I love his lectures. Thanks so much.

[@peonerw]

love these videos after watching them i look at the landscape in a new way now especially at work on the keller ferry i try to imagine the glacial lake there amd the ice and everything getting carved out by the water!

[@DI-cm5xc]

Always look forward to my favorite Prof's latest lecture. Never disappoints. But come on production people, let get Nick a lav mic, free up his hand and sharpen up the audio. You're crimping his style!

[@Ellensburg44]

Thanks! Problem with one of my lav mics discovered after the fact. Had to use back-up lav mic. Oh well...

[@stormysampson1257]

and the lighting!! But pahleese, those blackboards are critical!!!

[@martineastburn3679]

Right ON. Always get a miners hat and replace the light with a boom mike. I'd think they could mount them on the green boards - could have three or more and swing between the two that are more active.

[@miniwaern]

Ive seen mana sediment layers worse than this tho

[@hikerJohn]

@@@Ellensburg44@ Changing the subject from mics back to geology, this makes me wonder how you distinguish the difference between ocean floor core samples that suggest earthquakes and evidence for these flood deposits on the ocean floor. And where's the *delta* from all the deposits?

[@davidcrosby7219]

I’ve watched this at least half a dozen times over the past few years and it’s still fresh and interesting. Great content, great delivery.

[@RantzBizGroup]

These videos are FANTASTIC!!!

[@Ellensburg44]

THANKS!!!

[@martinmiller7623]

Once again you have my curiosity engaged. How gifted you are thank you.

[@macnutz4206]

This wonderful speaker and teacher needs a better mic. Well, we in KZbin land need for him to have a better mic. This was fantastic. I have learned a lot from these lectures. I have to go through part of this one again, to understand two different sedimentary layer types.

[@stephenyoung3721]

Looking for more Loess? Check out the Loess Hills along the Western border of Iowa particularly behind Council Bluffs.

[@doncook3584]

Bravo from Omaha Nebraska. Did you know farmers blessed with Loess soil generally don’t have to irrigate crops bc loess is so efficient infiltrating and retaining rainfall? Son is D1 football recruit and I observed zero center pivots on a visit. Coach at Iowa State shared info with me.

[@TanksWorkshopMinis]

Prof. Zentner, I'd take your class in a New York minute! Keep up the videos!

[@wendygerrish4964]

Nice to see a chalkboard again. Nothing left out, instead of lookin% at one flood or event this Proffessor has put them all together making a terrific public ed story.

[@bagoquarks]

Nick, thanks for every video you've made on KZbin. My question: is it possible that some of the slackwater sediments are from flood events not related to glacial lake draining? For example, a year with a huge snowpack, followed by a 500-year spring storm, might leave its own flood layer that would appear as "noise" in a stack of otherwise glacial retreat sediments.

[@Ellensburg44]

Thanks Michael. Interesting question. It's possible, but these layers are so thick and so extensive...multiple counties...that it's difficult to imagine a storm being responsible.

[@ElinT13]

Wow, that flood animation after time 50:00 is very impressive! And thanks for this - yet again very interesting - lecture, Dr. Zentner!

[@Urgelt]

Fantastic lecture. Thank you. I'm wondering if the (relatively) rapid retreat of Greenland's and West Antarctica's ice sheets might lead to similar ice dams and quick, massive floods such as those seen in the Pacific Northwest in the Paleolithic. If so, within a century or two, humans may find themselves witnessing phenomena not seen for nearly 14,000 years. Take pictures!

[@krashdown5814]

Love your lectures Nick, greetings from The Blue Mountains Australia.

[@christophers6886]

What brand of smart board is that it has such a realistic chalk effect

[@Ellensburg44]

Good one!

[@silent6121]

Its alien

[@pocadon]

I didn't know teachers still used these. Ahhhhhhhh! I can here nails scratching across it.

[@timkent8677]

Absolutely brilliant. Well done in the illustrations. They are very difficult to fathom. I especially enjoy the updated information. True scientific method presentations!

[@Ellensburg44]

Thanks much, Tim!

[@drincmusic2769]

I'm a native american. I had a dream once that I was in some kind of mountain range, and all of a sudden, the entire mountain range was engulfed in a sudden surge of water half way up the mountain. I was able to get to high ground, but for some reason everyone else wasn't able to get to safety. Kind of an interesting little dream. I don't think that it's like some kind of spiritual thing from the past or anything, probably something that was suggested in my brain after hearing about a giant flood of sorts, and it coming almost to life due to my subconscious. Still is an interesting dream though.

[@Ellensburg44]

Thanks for watching, Dwight.

[@ResortDog]

Check out Ben Davisons Earth Catastrophe series on Suspicious Observers channel for a possible explanation of how the oceans came over the continents.

[@kirstinstrand6292]

Past life? Never know!

[@kirstinstrand6292]

I pay attention to all the dreams I remember in detail. Somewhere in each dream there is something to learn about yourself. You just need to know how to interpret the dream. It's usually about feelings/emotions.

[@ericjohnson1811]

Excellent lecture. Thank you for posting for everyone! Awesome animation!

[@Ellensburg44]

Thanks Eric!

[@Gismotronics]

Love this stuff. I wonder how the ending of the Younger Dryas fits into all of this?

[@swirvinbirds1971]

It was created before the Younger Dryas.

[@eboydens]

what caused the ice to melt so drastically and fast … ?

[@SoilToSoul]

Younger Dryas is a 1300 yr period that seems to be 'bordered' by some kind of catastrophe(s). Meltwater pulses 1a and 1b, had to have been caused by huge water flows coming from somewhere, most likely the ice sheets melting, as sea level was raised nearly 400ft. Many mysteries still to figure out about the Younger Dryas, its a fascinating time period to study.

[@LyubomirIko]

​@@SoilToSoul The Greenland crater needs dating. They have found some inconclusive secondary evidences that it is around 50 000 yr ago, but nobody really knows. And a lot of data of YD sediments all over the globe have peak of platinum...

[@bernardtimmer6723]

The Younger Dryas came to an end after an impact on the Iaurentide icesheet relating to the bays in North Carolina and I believe Iowa. Bits of ice blown from the icesheet impacted to form shallow lakes and ponds.

[@forestdweller5581]

You made that easy to understand, and fun as well. Very good lecture prof. thank you!

[@swimbait1]

A lot to take in but a fantastic story. Thank you

[@Ellensburg44]

So true! Thanks for watching.

[@vv13346]

Nice work putting all the research together like this! I only recently discovered your excellent videos and interviews (Waitt, Baker, Atwater, O'Conner, etc.) and they got me reading a lot of the papers on this fascinating subject. You've done a great job of presenting the big picture here!

[@Ellensburg44]

Appreciate your comments. Thanks!

[@engineersteveo9886]

It would be interesting to understand what happened in the Midwest and East when the Ice sheets were melting.

[@mhgaffney]

The whole continent of N America moved as one, 1657 miles south, at the end of the ice age. This moved the polar ice cap into the temperate zone. A rapid melting of the cap followed. It seems there were also other cataclysms at this time. Check out my 2020 book Deep History and the Ages of Man, available at Amazon. Mark

[@bernardtimmer6723]

Brilliant, I didn't know about Lake Lewis. I first read about Missoula and the Scablands 30 years ago, fascinating. Super-cooled water undermined the icedams, the lakes left the shorelines marked on the slopes near Missoula.

[@arthurhaecker2793]

I wish the sound quality was better

[@rabidbigdog]

I re-watch every so often to hear the audience reaction and Nick's comedic timing at 53:00. The man is genius communicator.

[@jonassalk1387]

A similar Question could be : How many years ago did our ancestors first qualify for classification as human? Current estimates based on tests of human remains discovered, say that Humans have been around for 300,000 years .

[@استاذدانيال]

Everyone else has praised the speaker's knowledge, and the usefulness of this video. I agree with all that. I realize the video is 4 yrs old now, and subsequent videos may not have the same problem this one had with audio. I'll watch other videos by the same lecturer to hear how the audio is. For what it's worth, to this lecturer or others doing lectures like this, please be sure the recorded audio is better. It sounds as though the audio on this video was secondary, i.e., the microphone for the video was on the camera itself, at a distance of perhaps 40 feet from the lecturer. It would have been far better for him to have a remote, wireless microphone which tied in directly to the video-recorder. I used headphones, and read the subtitles generated by KZbin, but I was only able to hear about 90% of the lecture. Too many words were garbled or indistinct. The subtitles were often more a distraction than a help. I couldn't make out the word "loess" until I saw it spelled on the chalk board. I don't know if the KZbin subtitles ever got it right. Lots of problems like that with technical vocabulary.

[@sent4dc]

Good. Thanks, Nick. I just wish one of the engineers figured out how to turn on your mic.

[@Ellensburg44]

Faulty lapel mic discovered after lecture. Had to use backup mic. Sorry.

[@mikes9117]

At 53:53 minutes, I've seen that clip on another video

[@BFjordsman]

When can we look forward to a lecture series for The Great Courses from the learning company🤔

[@Ellensburg44]

Ha! Time will tell.

[@brett328]

Has that dating method of the decaying Quartz crystals been used in Egypt? There seems to be a ton of disagreement about the age of many granite structures over there and elsewhere for that matter.

[@brendan5232]

Would somebody give this guy a tv show already? Please?

[@btajpb1891]

I'll second that. If nothing else I hope teachers have found his lectures. This lecture would have seriously hooked me at a young age.

[@kirstinstrand6292]

@@btajpb1891 I had the same thought last night watching pbs eon... another fascinating channel. I live in WA STATE.

[@jacquelynfales4661]

Very informative. Would like a little more volume. Looking forward to more.

[@markn.reprisal9472]

Disneyland for grown ups. -- Don't miss *any* classes. -- Take notes as fast as you can write. -- Research with anything you can get your hands on. -- Homestead in the Library if you have to. -- And *enjoy!*

[@Ellensburg44]

Great! T-shirt material.

[@markn.reprisal9472]

It's all yours! Proceeds can go into the field trip's coffee kitty. When they're off the press, I'll buy four myself for my kids !!!

[@icicicles]

@53:33 Wait, you show water thundering over Dry Falls but I thought the Ice age flood created Dry Falls? If it did, then their would have to have been a giant rock in front to create great turbulence to create Dry Falls. Where is the rock?

[@Penguin_of_Death]

TITLE: Dating the Ice Age Floods Step 1: Find the Ice Age Flood's profile on Tinder Step 2: Swipe right Step 3: Keep your fingers crossed while you wait...

[@mrFoxYou1]

Sounds more like a Grinder profile😂😂😂

[@Anne5440_]

Very interesting, I need to get the references you recommended. Thanks for a great talk.

[@lonnijohnston6339]

Professor Nick, you rock! (No pun intended)

[@psychobobsweets]

I been ona mission to watch everything nick. Great job

[@andreek8559]

Randall Carlson has been studying this for 40 years.

[@swirvinbirds1971]

No he has not. Carlson hasn't even picked up a rock hammer in the area. Carlson doesn't even know some of the most basic evidence in the Scablands.

[@yoshimitsu380]

@@swirvinbirds1971 Why do you say that?

[@swirvinbirds1971]

@@yoshimitsu380 Because he lacks some very basic knowledge about the Channeled Scablands. Google Burlingame Canyon, Gardena Cliffs. Thats a good place to start. Heck, just watch more videos by Nick Zentner here and you will learn more about what we do and do not know about the Channeled Scablands of Eastern Washington State (and what little Randall Carlson knows) than you ever will watching all of Randal Carlson's videos.

[@Kwodlibet]

Just because some one is doing stomething for a long time does not mean that they are good at it... or that they even understand the subject.

[@swirvinbirds1971]

@@landsurfer66 i've watched his videos, thats all I need to know. It's obvious by them that he either A) flat out doesn't know some very basic information about the scablands or B) is not telling people of the evidence intentionally to boost his book sales for his hypothesis. There is really no other way to take it.

[@franklesko2485]

Wow, I know nothing of geology, I'm here for the archaeology tie-ins. I first looked at this video and thought "there's no way I'm going to watch this for 1.5 hours." Here I am way past an hour still riveted. Thank you so much for posting this wonderful lecture. I can only imagine how much the landscape of this field has changed (no pun intended!) in the 5 years since this was done.

[@Mirrorgirl492]

I thought this was going to be about romance and courting in the Ice Age...oh well I learned something anyway. ;-)

[@murrayf2890]

Very very interesting fellow. I knew about the flooding but this guy made it easier to understand the process over time.

[@stormysampson1257]

Zebra stripes are horizontal. That means they were laid down FIRST? Sedimentary? Nick, I just LOVE your lectures. Oh my goodness. You have the knowledge, totally, but even more you have charisma. Rare. You are educating people! Yay, Nick!

[@phantomwalker8251]

watch dan britt.

[@tgchism]

Few people get to do what their true passion is for a living. Even fewer are truly great at it. Nick Zentner is one of them when it comes to teaching geology!

[@erictaylor5462]

It would have been a hell of a thing to see, I'd bet. Wouldn't want to be living in parts that was flooded though.

[@lewis3427]

What a time to be alive. Access to so much information that's turns everything we were taught at school on it's head . I think Maths is the only thing that's never been proven wrong haha

[@rockets4kids]

Has anyone else noticed that his pants always wind up getting dirtier in the lecture hall videos than the videos made in the field?

[@Ellensburg44]

Ha! Great point.

[@rogerdudra178]

Thank you, again, Dr. Zentner. This study is only beginning. I think you;re correct to say we're still in an ice age. After much study I lean toward the Holocene being an inter stadial period as opposed to being a seperate geological era.

[@RedwoodTheElf]

"Petrified Watermelons - Take one home to your mother in law." that person wins all the internetz.

[@mompofelski4191]

really like the content - have trouble with the audio though - it is not very good - have to rewatch and relisten and try to lip read in order to make sense - I wish some tekky genius could clean the audio up on all your lectures so it was more clear. I thought it was just me having trouble hearing, but I asked someone else for their opinion and they said there was definite audio issue. BUT THEY ARE SO INTERESTING AND INFORMATIVE AND ENTERTAINING. Keep up the good work.