Nick Zentner I have been watching all your lectures and I have to agree! You truly are a wonderful educator! Just the right amount of comedy and facts 😆👍😁
This is such a wonderful series. I've lived all my life in the Pacific Northwest and your stories as to how it was created over millions of years is fascinating and rich with details, speculation, answers and questions. Thank you!
Absolutely fascinating. It’s utterly amazing that we are able to figure all the stuff out. Thank you for your hard work and for making mankind just a little smarter. Actually a whole lot smarter. I live in upstate New York I understand we have a fascinating geologic history in this area. I wish we had someone like you here in Central New York with a passion for geology as great as yours. If you haven’t done so you have to visit the finger Lakes you will not be disappointed. Thank you again.
I live in Eastern Washington. You don't have rub many brain cells together when you drive through the middle of the state to realise that something violent had happened. It can't be overstated. House sized boulders scattered across farm lands, like tombstones of the disaster. It's hard to visualise the power and amazing earth shaking craziness that obviously happened.
great presentation. i first learned about this in college as a Geology Major in the late 80s and wanted to refresh my memory. My instructor at that time had just visited the area on a trip so had a great presentation of his own at that time.
Dr. Zentner reminds me very much of my own profs at Western, ca. 1980 CE. His videos are simultaneously highly informative and very nostalgic. Thanks, Dr. Z!
I love this guy... he tells it like it is... just the facts and the best guesses... no inflated ego, no crazy aliens did it crap.... he is what a thinking man should be....
So glad I came across this gentleman a few years ago. He broke my bad habit of listening to another fella who spent half the time poo pooing and misrepresenting the “mainstream” geologists.
This is such a geologically active part of the world and Nick does a great job explaining the complexities of it. I learned about the great Missoula flood years ago. But when Nick said it didn’t happen once, but rather, several or even a hundred times, I sat stunned. I had never heard that before - or even dreamed to be possible. It amazes me that the glacier could create the dam and then fail repeatedly to create such a massive and devastating floods. Nature is crazy. Imagine being close enough to witness one of those floods and survive to tell the tale. No one can comprehend 1,000 feet of water flowing through a breech like that.
While living in Idaho, I became fascinated by the flood results and spent several summers driving/walking them. Camas Prairie ripples and water levels at Missoula are almost unbelievable to see. Great video. J Harlen Bretz deserves a monument.
The Ice Age Floods was a cool geological story to learn about. When I moved to Seattle in 2002, the scablands along the highway caught my eye. Looking for information about them was my introduction to the floods. My first road trip long weekend out of Seattle a few months later took me to Missoula and the Camas Prairie, and I visited a number of flood related sites across the region over the years before I finally moved away. Just discovered your series of related videos and have started working my way through them. I appreciate your videos and your explanations.
This also came to mind, I was once digging up on flattop mountain and a about 2 or 3 feet under ground was solid sandstone, I had been digging up many trees ,for a pasture, that night I camped out on the mountain, so I could save my motel money, the moon was Farley bright, later on that night I got up to stoke the fire, and as I looked Across where I had been working, the ground was glowing, I went over and on the ground, roots were glowing , some of them were as big as your arm, I picked one up, and bent over to where the moon was behind me, it was bright enough to maybe read a newspaper with, so I picked up a few of them, and put some in a paper sack, and one big one
Finally, information about the layers seen from I-90 near Nine Mile Road!! i go past here on vacations/trips at least once a year and haven’t been able to find much out about them. And so, so cool to see the varves-not visible from the Interstate, especially at Interstate speeds.
It's interesting to note that without these catastrophic events from the past, we wouldn't have modern highways. Not because they carved easy paths, in some cases, but because they created the raw materials we use to create highways. If you have a gravel pit near you, you now know why. This stuff fascinates me.
Love these videos. You've inspired me to take a trip to the Erratic Rock site here in Oregon this summer. It is amazing the history you drive by your whole life without even thinking about it.
Thank-you for taking the time to make these videos. They help me conceptualize all that happened around here (Washington). I run an excavator occasionally and do some hiking your videos help me know what I'm looking at when were out and about. I've seen that tusk that was donated to the Burke by the developer, it's still in a room covered in plaster drying out.
I have recently moved to Hayden, Idaho for retirement. I have a life long interest in geology so I have begun reading about the region . I am now reading Bjornstad's book on the Glacial Floods, with two or three others in the bedside pile to read. Your video is a great visualization of what happened on the deep water end (vice the scabland end) of the floods and is quite illuminating. We drove north from San Diego to our new home, and west across I-90 just six weeks ago and I really wish I had seen the video before hand to appreciate the road cuts along the way. Great video- well done!
I've been looking at the lake level lines, since a little kid. I remember telling dad that there must have been a really big lake before Flathead Lake. Interesting video.
This is one of the best shows on RUclips, thanks for all the effort you put into these vids I don't know a thing about geology barely got taught it in school so it's interesting to learn all these things - cheers again Tom & Nick :)
He is easily becoming my go-to educator for questions I get in my learning about all these amazing geological events. So interesting. And he’s still presenting. Has his own channel now. Great stuff!
I found it very interesting and very informative. Thank you for putting this together and thanks for sharing it. When I worked in Hawthorne, NV, I was amazed at the expanse of ancient Lake Lahontan; its strandlines were visible almost everywhere, from Hawthorne north to Fallon and from Hawthorne west and then north into Reno the "back way" up Hwy 95.
I am really glad I watched,awesome job sir! I have been fascinated by the thought of these floods for several decades. Your take is spot on I think. Excellent presentation thank you for sharing your expertise and knowledge! Jim
Another outstanding video on one of my favorite geological features in the Great Pacific Northwest. I have actually stood where you have at the National Bison Refuge, both in my own quest to understand the size and scale of Lake Missoula and to appreciate the buffaloes (and other wildlife) that dominate the refuge. I knew then, there were a few places I had missed, which you showed in this video, Your video did nicely to fill in some of those gaps. Thank you for sharing. Do have a bibliography for this video? I am always looking for new articles on Missoula and the floods.
I stood at the ice dam marker last year and imagined it filled with Lake Missoula, your picture at :54 is what I "saw". I stood there in awe wanting to know more. Then you create this video, thank you very much for all the effort you put forth to share this information.
Wenatchee Flyer Great to hear you made it up to that marker which shows the high water mark of the lake above Missoula. Pleased to hear that our video worked for you.
The other thinking for highest-oldest lowest-youngest being the rule from strand lines ... each time the ice sheet grew back to block the escape route into Idaho, the ice was less solid and easier to bust through than the previous time.
I thought it was the Bull River I fished in at Noxon. I guess I was wrong. I loved my time there. 350 degrees and 100% humidity at home. I had to wear a flannel shirt in Noxon in June. It got cold at night.
I've been enjoying your videos since I stumbled upon them recently. Living on the Palouse and being an amateur history buff I've traveled, read about, and explored many of the great floods signatures left to us as Dr. Bretz first realized. Unlike some other geological events that have occurred, these abrasions on the landscape are relatively recent and are quite apparent in the scablands of Washington. Keep up the fantastic work Nick, and Thank you!
One thing I am trying to find is something on the dynamics of the massive potholes further down the flood path. I did see one piece once but am finding it again difficult. You could do 20 minutes on this alone. If you want to illustrate the power of the flood, showing how the vortexes of water drilled these potholes will do it. If you have seen one up close, they are massive and the force of the water drilled these holes in solid rock over short periods. Essentially, in the midst of the flow, the speed of the water hitting some kind of obstacle would set up a "whirlpool" type of vortex within the column of water... Think a vortex the size of a house in terms of width/depth in a cross section. So, as the water flows, this vortex is stretched out over a distance of like football fields within the flow of the water... If you have watched a small clear stream flow, you occasionally will see similar things on a small scale with the end of the "vortex" dancing in the flow for a moment as whatever barrier breaks surface bringing air into the flow, bubbles... As these vortexes twist stretching out the length of football fields in the 65 mph flow, they end up focusing at the end and that part is hitting the rock on the bottom like a drill. The water column has "stuff" in it ranging from small rocks to larger ones and wood and silt etc., and has air as part of the process so the "drill" end has the materials to cut into the rock. So, depending upon the stability of the conditions and barriers causing the vortex, these can continue for a period of time, long enough to drill holes in rock fifty feet deep and wide... Now that is the power of mother nature and standing in one of those pot holes imagining the forces that created it should make you feel very small and insignificant.
I've also wondered if all or at least the start of the potholes came as the coulee advanced. Essentially, did the pothole start at the base of the waterfall, and then the rock 'up stream' was eaten away leaving them in the middle of the coulee? I could see the extra punch of the water pounding over the edge being enough to drill down into the layers of basalt, even if it's just a little more than the general flow of the flood. After that, all it takes is a boulder or two to get lodged in the hole, and the current will enlarge it as you described.
It must have been an incredible and terrifying sight. Can you imagine being a native living on the shore of Lake Mazola then waking up one day and seeing it had gone.A body of water that had been in place longer than your grandfather's grandfather could remember, gone, pretty much over night.
Watched your videos with much interest. There is a lot of information packed into them and some I think I'll be able to remember. I am always interested in the geologic history of my familiar living area and its geologic makeup. It's amazing to me that this data can be brought out with careful and painstaking study. Thank you for putting these videos together.
Loved this video : SO interesting ! 😊. So clearly explained : even a comparitive newcomer to the whole fascinating subject of Geology is drawn in , wanting to learn more. The "Prof'" says, "I love you, and goodbye". I would bet most viewers love you too, Professor. Your friendly, direct style is very appealing, like a friend telling you interesting news.🙂. Wish all teachers could have your amiable personality : education levels would soar ! 😊⛏️. 🇬🇧💕🇺🇲⛏️🌎😊⛏️🇺🇲
Not only was the ice dam “no match” for the water behind it, it failed catastrophically because when enough water got behind it, it began to FLOAT (as ice does in water). Then it failed totally, releasing 500 cubic miles of water that rushed toward the Pacific Ocean.
What I love about the science of geology: As an undergrad and graduate geology student in the 60's and 70's the idea of Glacial Lake Missoula was considered pure poppycock. The scablands were a total mystery that few even tried to explain.... now, fifty years later, it all seems obvious..... There are no bad ideas in geology, only new ones. Geology is a young science, basically dating to the early 19th Century, thus new ideas are freely debated and ideas change. Same is true of the Chuxulub meteor impact ending the Cretaceous, btw.... A crazy idea that now is widely, almost, almost universally accepted.
Thank you Nick. You do the best delivery and have just the right amount of enthusiasm...you're the best. (Have you done any studies/lectures on the Olympic Peninsula? I'd love to know more abt it and no one better than you to tell it).
Thanks for the compliment. Nothing yet on the specifics of the peninsula, but check out the Silietzia discussion in the 'Liberty Gold and the Yellowstone Hot Spot' lecture that we did a couple of years ago.
Thanks to RUclips for surfacing your channel in my recommendations. You are such a clear lecturer and presenter of data. Outstanding overview of Glacial Lake Missoula and recent geological history.
He is exactly the kind of educator that can effectively motivate the next generation of scientist.
ruclips.net/video/6ekejmQKfNI/видео.html
Superb geology educator. A wonderful series. To bad there aren't ten of him!
+Gary Norris
Thanks Gary. At times, my wife wishes there was less than one of me.
Nick Zentner I have been watching all your lectures and I have to agree! You truly are a wonderful educator! Just the right amount of comedy and facts 😆👍😁
Biology.
RIP Tom Foster
1959 - 2020
It just doesn't get any better than this! Thank you sir for sharing your knowledge and experiences!
Thanks man!
This is such a wonderful series. I've lived all my life in the Pacific Northwest and your stories as to how it was created over millions of years is fascinating and rich with details, speculation, answers and questions. Thank you!
ruclips.net/video/6ekejmQKfNI/видео.html
No better way to spend a Friday evening inside whilst covid runs rampant, than to enjoyably explore geology with the venerable Nick Zentner 🙂
I'm watching this on Friday night two years later, quarantined with a nasty case of COVID. At least I'm learning something!
Absolutely fascinating. It’s utterly amazing that we are able to figure all the stuff out. Thank you for your hard work and for making mankind just a little smarter. Actually a whole lot smarter. I live in upstate New York I understand we have a fascinating geologic history in this area. I wish we had someone like you here in Central New York with a passion for geology as great as yours. If you haven’t done so you have to visit the finger Lakes you will not be disappointed. Thank you again.
That scenery at the start of the video is absolutely beautiful. Must be a wonderful campus too!
+Jasper
Yes, the University of Montana is a special place.
I live in Eastern Washington. You don't have rub many brain cells together when you drive through the middle of the state to realise that something violent had happened. It can't be overstated. House sized boulders scattered across farm lands, like tombstones of the disaster. It's hard to visualise the power and amazing earth shaking craziness that obviously happened.
great presentation. i first learned about this in college as a Geology Major in the late 80s and wanted to refresh my memory. My instructor at that time had just visited the area on a trip so had a great presentation of his own at that time.
Dr. Zentner reminds me very much of my own profs at Western, ca. 1980 CE. His videos are simultaneously highly informative and very nostalgic. Thanks, Dr. Z!
I love this guy... he tells it like it is... just the facts and the best guesses... no inflated ego, no crazy aliens did it crap....
he is what a thinking man should be....
Memorable comment, Howard. Thank you!
I agree with you 100%.
So glad I came across this gentleman a few years ago. He broke my bad habit of listening to another fella who spent half the time poo pooing and misrepresenting the “mainstream” geologists.
but it was aliens tho
@@normdeeploom5945 who was it?
This is such a geologically active part of the world and Nick does a great job explaining the complexities of it. I learned about the great Missoula flood years ago. But when Nick said it didn’t happen once, but rather, several or even a hundred times, I sat stunned. I had never heard that before - or even dreamed to be possible. It amazes me that the glacier could create the dam and then fail repeatedly to create such a massive and devastating floods. Nature is crazy. Imagine being close enough to witness one of those floods and survive to tell the tale. No one can comprehend 1,000 feet of water flowing through a breech like that.
Wow !!Can only imagine the sight and sound of the drainings !
You do an absolutely fantastic job of making this information accessible to anyone willing to listen. Thank you so much.
7 YEAR AGO ! Man we miss you, keep posting your research and enlighten us with it please.
Six years since a video upload. I hope you're still with us. We don't need an other video, just a sign you're still alive.
While living in Idaho, I became fascinated by the flood results and spent several summers driving/walking them. Camas Prairie ripples and water levels at Missoula are almost unbelievable to see. Great video. J Harlen Bretz deserves a monument.
The Ice Age Floods was a cool geological story to learn about. When I moved to Seattle in 2002, the scablands along the highway caught my eye. Looking for information about them was my introduction to the floods. My first road trip long weekend out of Seattle a few months later took me to Missoula and the Camas Prairie, and I visited a number of flood related sites across the region over the years before I finally moved away.
Just discovered your series of related videos and have started working my way through them. I appreciate your videos and your explanations.
+MarkHitsTheRoad
Glad our videos have been helpful, Mark. Thanks.
Enjoyed the narration and graphics, thank you.
Your enthusiasm and care for the topic is infectious. Great educational video
This also came to mind, I was once digging up on flattop mountain and a about 2 or 3 feet under ground was solid sandstone, I had been digging up many trees ,for a pasture, that night I camped out on the mountain, so I could save my motel money, the moon was Farley bright, later on that night I got up to stoke the fire, and as I looked Across where I had been working, the ground was glowing, I went over and on the ground, roots were glowing , some of them were as big as your arm, I picked one up, and bent over to where the moon was behind me, it was bright enough to maybe read a newspaper with, so I picked up a few of them, and put some in a paper sack, and one big one
and...?
That was glowing fungus you saw.I saw the same in a black night in New York State.
Finally, information about the layers seen from I-90 near Nine Mile Road!! i go past here on vacations/trips at least once a year and haven’t been able to find much out about them. And so, so cool to see the varves-not visible from the Interstate, especially at Interstate speeds.
It's interesting to note that without these catastrophic events from the past, we wouldn't have modern highways. Not because they carved easy paths, in some cases, but because they created the raw materials we use to create highways. If you have a gravel pit near you, you now know why. This stuff fascinates me.
Love these videos. You've inspired me to take a trip to the Erratic Rock site here in Oregon this summer. It is amazing the history you drive by your whole life without even thinking about it.
I am always blown away of the power these floods had. I live in Willamette Valley. I have seen the evidence of these floods here.
Thank-you for taking the time to make these videos. They help me conceptualize all that happened around here (Washington). I run an excavator occasionally and do some hiking your videos help me know what I'm looking at when were out and about. I've seen that tusk that was donated to the Burke by the developer, it's still in a room covered in plaster drying out.
+weedandwine Great to hear that our videos are helpful to you at work and play. Looking forward to seeing that tusk someday. Thanks for the comments.
This guys is the greatest. Thanks for all the amazing videos!!
Keegan H Thanks for watching our stuff, Keegan.
I will be sharing this every place I can, I can watch these over and over, I am sure others will too. The long and short compliment each other.
Earthwatch Etcetera Very kind of you. Thanks much.
This is excellent. Has all the stuff History channel missed in their ice age flood doc.
Not only a fine geologist but an excellent story teller!
I have recently moved to Hayden, Idaho for retirement. I have a life long interest in geology so I have begun reading about the region . I am now reading Bjornstad's book on the Glacial Floods, with two or three others in the bedside pile to read. Your video is a great visualization of what happened on the deep water end (vice the scabland end) of the floods and is quite illuminating. We drove north from San Diego to our new home, and west across I-90 just six weeks ago and I really wish I had seen the video before hand to appreciate the road cuts along the way. Great video- well done!
Nice to read your comments. Thanks and congrats on retirement.
Thank you so much for these videos Tom and Nick! You guys are presenting the fascinating geologic history of the area in a highly entertaining manner.
Thanks much for the comments, Kurt. We enjoy making these.
You are a local state treasure sir. Love your content. Really helps me grasp this concept.
This is super informative and very well made. Thank you!
This never ceases to amaze.
Just so cool. Fascinating. Who says geology is boring?
Just west of Missoula along I 90 near french town there is a road cut with obvious layers of lake bottom sediments
i was just wondering yesterday when you'd be uploading a new video. Excellent!
WildwoodClaire1 Thanks Claire. We've been having fun making these this spring.
+WildwoodClaire1
Thank you for introducing me to this channel.
On a side note:
There's got to be a pocket of gold in there somewhere.
I've been looking at the lake level lines, since a little kid. I remember telling dad that there must have been a really big lake before Flathead Lake. Interesting video.
The most interesting 19 minutes of content I have watched in a long time!
thank you, Mr. Zentner. you are a great teacher
This is indeed a very nice video. I live in far eastern and I am still fascinated by the story of Lake Missoula.
This is one of the best shows on RUclips, thanks for all the effort you put into these vids I don't know a thing about geology barely got taught it in school so it's interesting to learn all these things - cheers again Tom & Nick :)
Really appreciate your comments. Thanks.
Great job of putting this vid together. We are getting ready to go see it next month.
RIP Tom, you are missed!
These are absolutely brilliant. Hope we get more one day.
So much time, so much change, it’s overwhelming.
Agree!
Such awesome work. Thank you so much
Outstanding, thank you. I would love to see a video with Nick and Randall Carlson.
He is easily becoming my go-to educator for questions I get in my learning about all these amazing geological events. So interesting. And he’s still presenting. Has his own channel now. Great stuff!
Beautiful campus. Lonely looking.
I found it very interesting and very informative. Thank you for putting this together and thanks for sharing it.
When I worked in Hawthorne, NV, I was amazed at the expanse of ancient Lake Lahontan; its strandlines were visible almost everywhere, from Hawthorne north to Fallon and from Hawthorne west and then north into Reno the "back way" up Hwy 95.
Love your enthusiasm for the subject, and how you point out how little we can be certain about
Thanks. Important to show the data that we have - and how more data is needed to fully realize what happened long ago.
thanks again nick a nice break from my petrology
great watch. much better quality than most tv shows. you deserve a raise!
Glad you enjoyed it. Thanks.
Who’s I’ve been watching you for years praying you’d get visual. Yeah. Wonderful video.
Dear Nick:
I live in South Georgia. Albany is just 60 miles north of Florida. Thanks for the videos.
I have learned quite a bit.
Excellent report, very informative indeed.
Thank you Mr. Zentner, for your hard work in producing these types of videos.
Thanks Oscar. These videos at hugefloods.com are all the work of Tom Foster.
These videos are fantastic. Thanks for making them!
+snowpdx Appreciate you leaving a comment. Thanks.
I am really glad I watched,awesome job sir! I have been fascinated by the thought of these floods for several decades. Your take is spot on I think. Excellent presentation thank you for sharing your expertise and knowledge! Jim
Bravo. Sensational clarity and super-dedication to an event so long ago misunderstood. Excellent video.
Very nice comment, Joseph. Thank you!
Another outstanding video on one of my favorite geological features in the Great Pacific Northwest. I have actually stood where you have at the National Bison Refuge, both in my own quest to understand the size and scale of Lake Missoula and to appreciate the buffaloes (and other wildlife) that dominate the refuge. I knew then, there were a few places I had missed, which you showed in this video, Your video did nicely to fill in some of those gaps. Thank you for sharing. Do have a bibliography for this video? I am always looking for new articles on Missoula and the floods.
Lance Wilson Thanks for the feedback, Lance. Send me an email and I'll send you some of the new scientific papers that we used to make this program.
Nick is THE voice of NW geology on RUclips. Dude's on like 5 channels.
I stood at the ice dam marker last year and imagined it filled with Lake Missoula, your picture at :54 is what I "saw". I stood there in awe wanting to know more. Then you create this video, thank you very much for all the effort you put forth to share this information.
Wenatchee Flyer Great to hear you made it up to that marker which shows the high water mark of the lake above Missoula. Pleased to hear that our video worked for you.
This is such fantastic content.
The other thinking for highest-oldest lowest-youngest being the rule from strand lines ... each time the ice sheet grew back to block the escape route into Idaho, the ice was less solid and easier to bust through than the previous time.
And what we are probably seeing is only the final fill and drain series.
Excellent video ty!!
Just stumbled upon your videos today, you truly have a gift for teaching . :) Thank you for releasing these!
We enjoyed making these. Thank you.
Excellent presentation!
Super easy to understand. Thanks
I really wish you were down here in Southeastern Arizona to look at some of the structures and things here,
I thought it was the Bull River I fished in at Noxon. I guess I was wrong. I loved my time there. 350 degrees and 100% humidity at home. I had to wear a flannel shirt in Noxon in June. It got cold at night.
Wonderful! Ice age geology is amazing. Plenty of it here in Northern England where i live.
Someone saw this. I try to imagine the force and violence it took to hydraulically drill those holes in the bedrock.
Nick is one of my heroes.
GREAT WORK HERE!
this guy would have been a great geology teacher wish we had him back in school in my days
Thanks. I'm still alive and teaching geology at CWU. You're welcome to sit in on our classes anytime.
most awesome
I've been enjoying your videos since I stumbled upon them recently. Living on the Palouse and being an amateur history buff I've traveled, read about, and explored many of the great floods signatures left to us as Dr. Bretz first realized. Unlike some other geological events that have occurred, these abrasions on the landscape are relatively recent and are quite apparent in the scablands of Washington. Keep up the fantastic work Nick, and Thank you!
+Larry Meister Thanks for the encouragement, Larry. You live in a very interesting place.
Awesome video. More please.
Another great video, very interesting, thanks.
TheGingernutjob Thanks for watching, Nut Job!
This Geology is so fascinating!!
I think I missed my life's calling but its a great retirement hobby to study : )
Thank you for another fascinating lesson.
Thanks Brian.
Fascinating history..thx
I came to love geology due to my geology teacher, the legendary Richard Kennedy.
Thanks. I learned a lot.
Watching this from my picnic table in the Columbia River gorge.
One thing I am trying to find is something on the dynamics of the massive potholes further down the flood path. I did see one piece once but am finding it again difficult. You could do 20 minutes on this alone.
If you want to illustrate the power of the flood, showing how the vortexes of water drilled these potholes will do it. If you have seen one up close, they are massive and the force of the water drilled these holes in solid rock over short periods. Essentially, in the midst of the flow, the speed of the water hitting some kind of obstacle would set up a "whirlpool" type of vortex within the column of water... Think a vortex the size of a house in terms of width/depth in a cross section. So, as the water flows, this vortex is stretched out over a distance of like football fields within the flow of the water... If you have watched a small clear stream flow, you occasionally will see similar things on a small scale with the end of the "vortex" dancing in the flow for a moment as whatever barrier breaks surface bringing air into the flow, bubbles...
As these vortexes twist stretching out the length of football fields in the 65 mph flow, they end up focusing at the end and that part is hitting the rock on the bottom like a drill. The water column has "stuff" in it ranging from small rocks to larger ones and wood and silt etc., and has air as part of the process so the "drill" end has the materials to cut into the rock. So, depending upon the stability of the conditions and barriers causing the vortex, these can continue for a period of time, long enough to drill holes in rock fifty feet deep and wide...
Now that is the power of mother nature and standing in one of those pot holes imagining the forces that created it should make you feel very small and insignificant.
I've also wondered if all or at least the start of the potholes came as the coulee advanced. Essentially, did the pothole start at the base of the waterfall, and then the rock 'up stream' was eaten away leaving them in the middle of the coulee? I could see the extra punch of the water pounding over the edge being enough to drill down into the layers of basalt, even if it's just a little more than the general flow of the flood. After that, all it takes is a boulder or two to get lodged in the hole, and the current will enlarge it as you described.
It must have been an incredible and terrifying sight. Can you imagine being a native living on the shore of Lake Mazola then waking up one day and seeing it had gone.A body of water that had been in place longer than your grandfather's grandfather could remember, gone, pretty much over night.
Yes, doesn't get more dramatic than this story.
Lake Mazola I'd like to see but that much margarine is scary.
Watched your videos with much interest. There is a lot of information packed into them and some I think I'll be able to remember. I am always interested in the geologic history of my familiar living area and its geologic makeup. It's amazing to me that this data can be brought out with careful and painstaking study. Thank you for putting these videos together.
Thanks for the nice comments, Todd.
Wow, Mr. Zentner is an amazing professor. Great video.
Thanks Mike!
Loved this video :
SO interesting ! 😊.
So clearly explained :
even a comparitive
newcomer to the whole
fascinating subject of
Geology is drawn in ,
wanting to learn more.
The "Prof'" says,
"I love you, and goodbye".
I would bet most viewers
love you too, Professor.
Your friendly, direct style
is very appealing, like a
friend telling you
interesting news.🙂.
Wish all teachers could
have your amiable
personality : education
levels would soar ! 😊⛏️.
🇬🇧💕🇺🇲⛏️🌎😊⛏️🇺🇲
Very interesting I like a lot great information thank you.
Not only was the ice dam “no match” for the water behind it, it failed catastrophically because when enough water got behind it, it began to FLOAT (as ice does in water). Then it failed totally, releasing 500 cubic miles of water that rushed toward the Pacific Ocean.
I Love this video- brings back great memories of a geology trip we did to the Columbia Plateau.
Thanks for watching, Roberta.
Will you be doing any more videos?
Tom is busy with other projects. Hope he returns to make more of these.
What I love about the science of geology: As an undergrad and graduate geology student in the 60's and 70's the idea of Glacial Lake Missoula was considered pure poppycock. The scablands were a total mystery that few even tried to explain.... now, fifty years later, it all seems obvious..... There are no bad ideas in geology, only new ones. Geology is a young science, basically dating to the early 19th Century, thus new ideas are freely debated and ideas change. Same is true of the Chuxulub meteor impact ending the Cretaceous, btw.... A crazy idea that now is widely, almost, almost universally accepted.
Great episode!
Thanks Ivar.
Thank you Nick. You do the best delivery and have just the right amount of enthusiasm...you're the best. (Have you done any studies/lectures on the Olympic Peninsula? I'd love to know more abt it and no one better than you to tell it).
Thanks for the compliment. Nothing yet on the specifics of the peninsula, but check out the Silietzia discussion in the 'Liberty Gold and the Yellowstone Hot Spot' lecture that we did a couple of years ago.
Superb Works!
Earthwatch Etcetera Thanks!
Incredible.
Thanks to RUclips for surfacing your channel in my recommendations. You are such a clear lecturer and presenter of data. Outstanding overview of Glacial Lake Missoula and recent geological history.