GEOL 101 - #27 - Cascades II

[@tomastaylor]

I enjoyed both presentations. Lulu's lecture was really interesting. It's great to see the upcoming talented geologists' research building on the shoulders of giants.

[@DarrylWilletttoy4rn85]

A wonderful lecture Lulu! Your personality, intellect, and knowledge shine through.

[@lizj5740]

Well done, Lulu. And hello, Ben and Tim. What a crew!

[@Sköldpadda-77]

Good job Lulu. One thing I think that helps make a good presentation is, like Nick, to keep talking even when your back is turned or writing something, and never be afraid to admit that you don’t know something. You did well on both accounts. 👍

[@ronnronn55]

Thanks Nick for giving Lulu the chance to give a presentation on your channel. She's got the smarts and the enthusiasm.

[@maxinee1267]

Wow, I loved Nicks class, it answered a lot of questions for me, and Bravo LuLu, that was awesome, I knew nothing about those critters thank you for introducing us all to a scientific way to prove earthquakes and tsunamis do come along with volcanos.

[@tennesseenana4838]

The film of the large pyroclastic flow was from Mt Unzen in Japan and taken on June 3rd 1991. World famous volcano photographers and scientists Maurice and Katia Krafft plus 41 others were killed. They were in the restricted zone. That film was shot by a film person several miles away.

[@jasonlawler9674]

Thank you NZ

[@stormforce171]

kzbin.info/www/bejne/eafNqKdvo9Oqjrs lava dome collapse on Mt Unzen resulting in a pyroclastic flow

[@wendygerrish4964]

Thank you for that on Mauriceand Katia. They were totally famous volcanologists when I was a kid. They seemed to take some terriblerisks but that was probably some exageration by the journalists covering them. Where I grew up there were old lava flows and cinder cones everywhere.

[@catherineclark6284]

@@wendygerrish4964 I saw a documentary made by them and he was interviewed and said that dying while investigating an erupting volcano would be how he preferred to go; or something to that order, as I saw it several years ago.

[@janehallstrom7628]

Thank you Nick. I appreciate hearing from the grad students. Lulu did a terrific job! The idea that diatoms can give us a better idea of the range of a past tsunami is intriguing. Thank you Lulu.

[@Cheetoberlin]

Lulu you’re a natural teacher! Love your passion !

[@lanemosier6297]

I’m absolutely hooked,geo interested from Underwood,Wa

[@GregInEastTennessee]

I don't know how much experience Lulu has in presentations, but she did an excellent job. I had never heard of diatoms before, and I found it extremely interesting. Well done!

[@craiglachman1379]

Thanks Nick and Lulu! And to any administrators who may be looking, this seems to be a great resource both for us and the grad students too!

[@zazouisa_runaway4371]

Thanks Nick and Thanks to Lulu, Great and very interesting too ! Well done! Thanks

[@wiregold8930]

What a great presentation and a great detective story! I liked the contrast of the cartoon illustrations. It's legible even at low BWQ.

[@MrFmiller]

Thanks Lulu, and thanks Nick. Your guests add a lot to the dialogues.

[@LillianArch]

Lulu, thank you. Such interesting information to add to tsunami evidence. Family in Astoria, Long Beach, WA and Seaside so, many years of interest and concern about the BIG one. You've given me more to share with them. Best wishes on your Grad work. Congratulations, Tim!! Nick, I, too, still think of David Johnson and sadly waiting for word about him. Older now, I think how, happily excited he must have been seeing the spectacle and calling Vancouver that morning.

[@kevinahecht]

Great lecture, and great job by Lulu like Ben before. Glad to see younger folks building on Atwater’s research too.

[@bagoquarks]

*LULU THUMBS UP!* You had me at "freshwater ... brackish ... and marine ... "!!

[@lesabe6826]

Very good job Lulu! I learned a more information about tsunamis! Thank you.

[@mykofreder1682]

Looked at the eruption chart and everything seemed to have blown up 200 years ago, St Helen was marked as partial. Looking at frequency patterns the area should be free of explosions for several more hundred years.

[@janwoodward7360]

Good job Lulu. You’ll be a good teacher

[@smerk2275]

I think you have the teaching gene, Lulu! Well done!

[@margreetanceaux3906]

Thanks for another link to a downloadable book.

[@catherineclark6284]

One here who watches after the fact. Thoroughly enjoy the lectures and maybe someday I will catch a live stream.

[@markbike5288]

A former colleague who was a Central U student at the time, said that the Central U students response to 18th May 1980 was to make a liquor store run.

[@CherPoff]

People do all kinds of weird things when they don't know what to do.

[@markbike5288]

@@CherPoff I thought it was a perfectly reasonable thing for college students about to go into lockdown to do.

[@dpcnreactions7062]

I visited St Helens in 2007 and was very pumped to see the minor eruption there and to walk around the grounds!

[@57jwyatt]

Thanks Nick! Great lecture and bonus coverage on diatoms!

[@bruce445]

Well done Lulu, very interesting about Diatoms seem to be an excellent marker. Cheers Nick.

[@mt.sylvania9218]

Cool, diatoms the biological zircons. Thank you Lulu and Nick.

[@johnhoel3768]

A message for Lulu - I thought your presentation was excellent. Before your presentation I knew enough about diatoms to be dangerous, but now the world is safer thanks to you. All joking aside, I was very favorably impressed. For example, I assumed that diatom skeletons were calcium, but now I know different and the difference is very important.

[@jamesdriscoll_tmp1515]

Fun fact: Some diatom shells have nonlinear optical properties that help the diatom gather light. These optical systems are only recently described, and have some properties that are better than classic lens systems. These are of interest to designers of nano scale sensors.

[@Sven-_Trials]

Great job LULU!!

[@peacenow4456]

Yes crackling... That day... On your light blue shirt, the mic wire was pulled tight and out of alignment, and when you moved back n forth to black board was only time mic crackled. Wire was pulled out of alignment. Good save!!

[@larrygrimaldi1400]

Lulu did a great job, whole new subject is interesting!

[@stevenield9836]

Lulu, thanks for the bonus material. Personally enjoyed it. Nick, you know I always glean something from ya. If the borders ever open up to get you guys north of the 49, I’d heart to pick either of your brains over various things I see on my weekly commute from the coast to the Okanagan. I may know a distillery/brewery/ winery or two along that way we could have a discussion on the meaning of life (or various rock formations). Both amiable discussions in my books.

[@kathleensayce6035]

Nova did a special a couple of decades ago about the eruption of Mt Pinatubo, Phillipines, that includes some of the best footage recorded of lahars, as well as a day by day sense of how that event ramped up from lots of quakes to full on explosive eruption. Worth tracking down to view.

[@DonnaChassie]

Can't wait for KZbin, Geol 351. Wish I could be tested on Geol 101, somehow....Townie from Orting WA.

[@larrygrimaldi1400]

Regimenting rehesarsals to escape the next eruption, would it not be easier to move to Minnesota?

[@Wedge53]

Nick, it may be interesting to speak to soldiers at Yakima Firing Center. They have trained two generations of soldiers in the ash fall of MSH. The dust in 1982 would hang in the air for up to an hour once disturbed. You can imagine what an infantry unit training under those conditions would have to endure..

[@xojewel1]

Hi mason, u deserve an A+.

[@PlayNowWorkLater]

This episode has got me thinking about what series I want to binge on next. You mentioned some 2nd year classes like geomorphology. I checked into some online courses similar to this one. Not really a course. Just a fly on the wall. But I’d like to learn more. Can you suggest some other videos to continue learning about more geology? Geomorphology sounds interesting.

[@_Michiel_]

Thank you Nick, for yet another great lecture. And congratulations to Lulu and Ben for their interesting additions. As for Tim: congratulations to you as well for being accepted as a grad student! Woohoo! \m/_

[@valeriehenschel1590]

Will try to join the live on Monday. I live on the north side of the Olympic Peninsula, and have lived out in the Westend (Forks). Should be interesting to learn more about what is under my feet. Also, earthquake early warning system now on line in Seattle/Puget Sound area. All over the news this week.

[@danduzenski3597]

👍👍 for Lulu.

[@PlayNowWorkLater]

Great job Lulu! Tsunami Vomit 🤮. I think we have a T-shirt there

[@jeffbrooks8024]

No crackling on replay

[@spatulanine]

Hello. Iwould like to know if the medicine lake volcano would be considered part of the cascades? THANK YOU

[@smerk2275]

Hi again , Ben. Have seen you on one of Nick’s shows.

[@eidrith493]

The diatom work could help explain the discrepancy between Brian Atwater's sand deposits and Goldwater's work with offshore turbidites.

[@dd-jm1md]

Prof. Ned; you need better secrets than that to have the Secret Service chasing you over the Cascades...

[@kathleensayce6035]

I am curious to know what her research is about?

[@johnnash5118]

Hi Lulu, Since diatoms are in rainwater and the atmosphere, and thus is/has precipitates/d into your study areas, how do you distinguish between precipitated and tsunami deposited as they’re mixed together?

[@jeffbrooks8024]

As Lulu said, different species live in different habitats. The freshwater ones, brackish water surfer types and the out and oceanic, high salinity tolerant ones. If the deep sea ones invade the normally freshwater habitat it’s an indicator of some catastrophic event like a tsunami

[@johnnash5118]

@@jeffbrooks8024 That doesn’t address my question.

[@smarmyeod8557]

[start watching replay, see Nick talking but hear no audio] "Oh man, two streams in a row, he'll be really frustrated at this!" [notice that I forgot to turn my speakers on] "SONOFA..."

[@smerk2275]

Blue chalk doesn’t show up on chalk board says husband.

[@SafoCZ]

right, blue is barely visible. use white, yellow, red instead. throw the blue one to a garbage bin.

[@greggwilson5221]

Lulu is a Star! Diatoms are rad ;>) In the future can she get a PowerPoint plugged into Nick's computer for her presentations?

[@lizj5740]

Mason Motormouth, you will definitely be a lawyer. Thank you for helping Eve. What kind of dog does she have? Ginger (see pic to left) says "Get well quick."

[@swanee327]

MINNESOTANS!!!!!!!!!!!!!! Seems to be several here.

[@richardbailey5095]

PB ran a series by Ann Curry called "Well Meet Again". Season 1, Episode 2 has a woman who was working with David Johnson just before the eruption.

[@MGeofire]

LULU: Excellent, excellent, Master is pleased...

[@jlcop]

A questio0n for Lulu: Could a large storm like a hurricane with storm surge inundating the shore leave similar geologic evidence like a tsunami?

[@lauram9478]

❤

[@ericojonx]

Tues, 04-06-2021, 11:57 am. No, 5x5. Eric (Los Angeles). Eric

[@carolinegabel8115]

Ogden utah

[@dpcnreactions7062]

I've spoken to a few people who were near Mount Pinatubo when it sent the Lhar down back in the 90's! They said that they were on the edge of the Lhar and they barely got out the way as it was travelling very fast!

[@jeffbrooks8024]

The doozy at Pinatubo was the pyroclastic flow. It came down the mountain and straight across Clark Air Force Base burying the runways under more than 20 feet of tephra. I have watched an interview with one of the Filipino seismologists who was on duty at the base that night, and she said it was absolutely terrifying to be in the control room watching the seismographs go off line one by one as the flow advanced. She said they knew it was time to leave when the front of the flow reached the perimeter of the base

[@MrRmeadows]

How to catch a pyroclastic flow? A drone. Get a disposable drone.

[@eidrith493]

What global climate events happened as a result of Mt Mazama? Around this time there was a transition of Northern European forests from Atlantic to sub-boreal and Egypt, previously wet was becoming dryer. en.wikipedia.org/wiki/Atlantic_(period)

[@lindagates9150]

Is she aware how bad race relations are for many citizens of South Africa it is scary there according to the person that I was talking to this week

[@mhansl]

Harry R. Truman represents the cynical side of humanity. Unfortunately, he is not unique. The anti-science crowd is alive and well.

[@MarkPillow]

nothing wrong with Truman making a fatal decision. It was his right. Now back to rocks please.

[@johnnash5118]

He didn’t have St. Helens as a reference like we do. It was his life and home; he probably wasn’t terrified, I’ll lift my next drink to him. Some distant future archeologist will unearth a Pompeian mummy flipping the bird.😄

[@complimentary_voucher]

There's a lot wrong with anti-science people mouth-farting in public. It would be ok if just THEY wore the consequences of their bullshit, but in reality other people tend to suffer. Fig 1: COVID.

[@johnnash5118]

@@complimentary_voucher What’s the science behind a 3mm thick cotton or nylon fabric from stopping @1.4L of cough vapor @13 m/s containing virus particles @3 microns? The answer is it’s completely ineffective, and is only making the greater naive public blindly conform.

[@johnnash5118]

@@TheDanEdwards Do you have any examples?

[@_Michiel_]

@@johnnash5118 As I recall the main importance of wearing this is that it retains water droplets which emerge when you breathe and speak. These droplets can contain lots of the virus which otherwise might have reached the person you're speaking to. So it is more a way to protect others than a way to protect yourself. But if we all wear protection we protect each other and help stop the spreading of the virus. It is a team effort and to me it is a small effort which I gladly make. Sorry if I made some language mistakes. I am a native Dutch speaker. ;-)

[@malcolmcog]

Tee hee ! he said pants ! In England pants is slang for crap/rubbish !