For Professor Lesemann, loved your field lectures!! Your passion for the geology and your deep expertise regarding the Okanagan glaciers were obvious throughout the entire series of Nick’s videos. Your students are lucky to have professor as skilled as you! Well done!
He is a very good teacher . learned a lot ,and ,a must visit, Okanagan ! The student impressed me ,they were all paying attention , not once did I see dam phone Kudos thanks all
Wow, that was packed full of information. I need some Tylenol. I'll watch it again tomorrow. Thanks Nick for posting this and thanks to Jerome for letting us learn with his students.
The Okanagan Valley has all sorts of interesting geology, and not only of the more recent glaciation. The fact that the valley is a rift valley that features numerous sites of volcanism which includes the Giant's Head in Summerland which was the first site in the video was filmed from.
Thank you Nick for bringing us a super interesting set of videos regarding glacial features of the Okanagan. Loved getting to see a beautiful area of British Columbia, an area I have never been to, but always wanted to visit. Very cool.
Great field trip packed with new material, very interesting. I'll need to re-watch it and take notes to absorb it all. Thanks for including us. I also appreciate the video and scenery and the stripey clouds are also interesting ( incoming storm maybe?).
This series of videos has been very interesting. As a resident of Kelowna I have always been fascinated by the geology of the area. It has not always been easy to find information like what has been presented. When driving south into Washington I have always wondered what effect geology in British Columbia had to the south. Thank you.
I was re-watching your video with Brian at water at Steamboat Rock when this came up. There seem to be questions in common about the effect of glaciation and ice compacting till, diamict, clay, etc. Mt St Helens ash (35-50 my??) Always something new to learn, and try to visualize. Must've been a really fun time! Thanks, Nick!! 👍🏼😍
Not being a geology student, I barely keep up with the language and concepts, but as much as I understand, it's illuminating and interesting - a picture of a part of North America I confess I haven't thought about much. Like many, I'm a visual guy, so also found the cloud pattern at 36:00 and occasionally afterward interesting.
Ray, please keep watching Nick’s videos. Have you watched his Geology 101 class from Fall semester 2020? In my opinion, that would be a great starting point. He has videos from years ago when he was doing community lectures for the citizens of Ellensburg, WA. Those are also a great introduction into geology as well. Then, you can watch the series that he did throughout the pandemic from his home, and work your way forward from there. He does focus on Washington State geology, but it can be applied to your general understanding of geology. Enjoy Nick. He’s an incredible teacher! Forgot to add that that cloud formation is fascinating. Glad you did the research to find out what type they are.
@@turkfiles Hi. I'm an old, retired history teacher myself, so I recognize his talent for engaging an audience. I stumbled across Zentner videos during the COVID lockdown, and have watched many hours of them since, including Geology 101 and Geology 351 last year. I plan to travel out west in summer, 2022, and will make a point of getting to the Channeled Scablands, for one thing.
I’m an “old” retired teacher as well. Happy to hear that you have been watching his other series. I was a geology major in school when plate tectonics/ continental drift theories were in their infancy in the US. ~ Early 1970’s. Very exciting time to be studying geology. I have learned so much from Nick, that I feel like I’ve been through school all over again. Every time I watch, I learn so much and deepen my understanding of geology. I am originally from Chicago, and much of the geology around there is of glacial origin. It never appealed to me, but to see Nick’s special guest get into the glacial aspect of PNW geology is in a completely different universe than what we had in Illinois. Very interesting and informative. I left Chicago and moved out west 45 years ago. Colorado, then California. I spend as much time as possible in the mountains. The ocean is nice, but the mountains are where I love to be! Take care.
In Canadian folklore, the Ogopogo is a lake monster said to inhabit Okanagan Lake in British Columbia, Canada. Some scholars have charted the entity's development from First Nations folklore and widespread water monster folklore motifs.
Never had thought about the lake and river bottom levels that are at low elevations at the surface have bottoms that are well below sea level interesting thought and interesting what effects that has
This is super interesting for me. My home in Whitehorse, Yukon was under an Ice Sheet during the glacial maximum but as it melted and retreated, it was under a large glacial lake. Probably similar size to this one. glacial lake Penticton ? Here it was glacial lake Laberge. Held back with a large terminal moraine. So currently the lake bottom is areas of till, outwash and lake benches. We have what we call clay cliffs. In reality they are mostly silt. But the cliffs are 100 metres thick in some areas. With a terminal moraine it is suggested it drained fairly quickly , and cut the lake bottom sediment quickly. I’d love to pick Jerome’s brain about the story here in Whitehorse. I’ve been chatting with a local geologist, and they’ve been helpful, but I’ve just seen many of Nick’s videos with Jerome and he is awesome.
If I told you why the clouds were doing this, my comment would get deleted. So, I'll just say that it is all innocent what you saw happening in the sky.
A whole mess of squirming co-variables in that lot. I'm impressed how Jerome keeps a handle on them all while describing "what we know so far" to his students, all the while offering some of the alternative models to get them, and us, thinking. 😉
The book "Okanagan Geology" edited by Murray R. Roed and John D. Greenbourough is really informative about the geology of the Okanagan Valley. That is the third edition.
"No till." Does that mean in this region, with a known portion of a continental ice sheet, it's more about ice melting than ice moving? Does glacial till near known alpine glaciation zones imply relatively more ice movement than melting in shaping the landscape?
Awesome informative video! I’m def wondering if the Similkameen valley was a part of lake penticton as we do have a trace of lake sediment, to me it’s location and rarity hints and following reglaciation and I heard a hint of 15000 yr old sediment dating.
no till due to Rapid Deglaciation? extraterrestrial body colliding with the glaciers, cleaning all sediments off the bedrock upstream, then redeposit further down resorting the sediments? im uneducated but my geuss is that the map looks like the lake was a point high flow/ turbulance. I'm writing this comment only in 15 minutes in. so hopefully it gets talked about. Nick could you ask Rob in liberty his opinion about rapid deglaciation and his alluvial gold mines? like could an event like that concentrate gold in an area giving it an appearance of millions of years of ancient rivers sorting material, but maybe it happened quickly. im always confused when i see concentrations of well rounded massive boulders.
It might, but this area is a bit further inland, so it won't be the main stuff Nick talks about. This is west of Idaho, but east of Cascades, so has been mostly dead for a lot longer than the glacier's existence. As mentioned, maybe some fault reactivation from parking that much ice on the surface, but not so much the actual plate tectonics. Some of the Cascade cones today are older than the glaciers by 10x their lifespan, as they were talking about 150 000 years (ka) rather than 2 000 000 years (2 ma) so the cascades were up already by a long time.
@@collinbarker thank you. I know Nick has talked about the clockwise rotation of nw Wa and how that’s responsible for the folds along the Yakima valley. Thought it might extend that far north
@@gregoryvschmidt This is quite a bit further inland, I don't live anywhere that area, but from what I remember, the clockwise rotation dies when it hits the core rock that form the mountains above Vancouver. These mountains and the terrain below them provide the backpressure to wrinkle the surface.
@@collinbarker I have always naively found it strange that the PNW wrinkles instead of builds up a large "Himalayan like" East to West range where rotation stops. Possible anyone knows enough to define/guess why the area does what it does, and why we dont see a significant trend of uplift right at the top of the clockwise rotation where it stops? Is it possibly the time scale it has been active? Just a completely different scale of movement from continents crashing into each other?
@@101rotarypower from what I understand, the PNW chunk that wrinkles is thinner/softer than the main crust, so it will deform more and more evenly. Similar to a thin throw rug sliding into a wall. It bunches up similar to the Himalayas, but it itself is thinner and will deform entirely rather than deform both the impactor and impacted plates relatively equally. As for its shortness, I think it is due to the fact that the movement is relatively small, and regional causing less overall terrain to be physically lifted. Sliding a small floor mat vs an area rug into a wall, there is more stuff to deform in the big one so the peaks and valleys can be more extreme for the same amount of relative compression.
