Episode H - Puget Sound Floods? w/ Jerome Lesemann 

Jerome is just a gem. Stellar manner of speaking. Organized. Vocabulary. Grammar. In command of language. All the things.

Nick and Jerome another home run.

Jerome is so excellent with his “on the fly” narrative to this high wire act!🤣. Nick seems to know the coolest people! Thanks Nick.

Wow Jerome is awesome, all of his content is clear and informative. Thanks for the video

Excellent discussion today, with some terrific visuals. Don’t miss this one!

Grasping for discovery is key to science. Thank you Nick for what you are doing!!! This is a special place.

I love how these sessions are lead through the contribution of the community!

I really need a "sorry Patrick" sticker 🤣

a privilege to be here on line with you all. Learning. Hats off to Jerome and Nick!!

I am trying to do your homework on drawing the glacial layers where we live. But I live in Thailand.. But searching around the net, I found a paper on glacially influenced deposits in Phuket, Thailand. :) It was 289.8 million years ago though. :)

Thank you for another episode. I love binging them when i have time.

Thanks to all of you for creating these fabulously collaborative learning opportunities. It is incredible being on your team :)!!!!! You have probably already thought of this but I think that all of Bretz's descendants (especially the ones that you received permission from to share the notebooks, etc) would love to have copies of your presentations. What a treasure trove of info to see what they have helped create with their sharing!! Special thanks to you and Glenn and all the rest fot the exploration: )!!!

Thanks Nick, Jerom, so much in site

Oh man you made me laugh so hard thinking about Kurt Cobain going through Aberdeen. I drove through there in 1985 and the best memory I have is a sign at a diner : chicken Gordon Blue.

Both Nick and Jerome are great teachers.

You two are a dynamic teaching duo. Such a great episode - really interesting information! Thank you both so much.

I just love everything about this. ❤

I want one!!! Where can I get a "Sorry Patrick" sticker? Yes Jerome is good!

I am from Germany. There are ice age moranes 50km north of my hometown (Glaciers from scandinavia) and 500km south of my hometown (glaciers from the alps). What color they are? Green when the grass grows and white when the snow falls…. I follow your channel with great interest! I don´t miss any episode! I just learn. Thanks, Nick!

That was SO exciting talks! Maybe Glacial Outwash, yup, makes much more sense!!😆😃💙✨Thank you Jerome and Nick for sending me/us positive vibe....I really needed tonight💞💫

Nick, the existence of the submarine canyons of all of the western rivers expected to have carried melt waters in varying volumes is pretty exciting. Has any investigation been done?

The Mima mounds south of the ice sheet are a direct result of glacial out burst, there locations tell water level at the time of disposition (soils, gravels ect). When the current slowed down to allow deposition of ice bergs,this also means on the fringes of high water volumes leading to depositions of iceburgs then burg piles. Violet Prarie has many Mima mounds due to slowing of the outwash current on to the wide violet prarie,( pronounced MYMA mounds).

I missed the live chat. I enjoy your class in the geology of Washington. The details such as railroad schedules, old pictures, and the writings of the previous geologists are a blast. I promise to catch up. I am happy to know that I don't have to take a final exam. BSME UC Berkeley, 1979.

Great series as always. I do not understand why you keep worrying that people are leaving.

I look at the foothills, in Pierce County, wondering how They were shaped with the glaciers, pushing through.

Best one yet.

Regarding precipitation rates feeding the Puget lobe, the glacier adds a 5,000 foot jump up in elevation along the western edge. That’s got to act like a mountain range wringing precipitation out of the “atmospheric rivers” coming in from the Pacific. It would be interesting to see a meteorological simulation/ model of precipitation map with a Canadian ice sheet on top of existing topography

Loved this, the visuals were stunning!!! Thanks Nick and Jerome. Daniel, you are amazing!!❤ Love from Southern Alberta🍁💚🍁

Love the video with Kathy

Did Bretz ever visit Dick's Drive-in?

The prairies mentioned at 1:29, the ones in south sound like Mima and the ones around Spokane, share similar features, mounds. Didn't Bretz did do research on the Mima mounds while living in the Puget Sound region? There are also Mima mound like features in the praries south and west of Spokane. You can see them from I-90. I have wondered if there was a connection.

It’s worth mentioning the videos you did with Jerome up in BC, eskers etc.

Thank you and Jerome! My mind is racing.

On my way to get caught up to live.As always thank you Nick.

UGH! Yes replay because I couldn't get here live until after 12:30. So I decided to wait. Hope to see you all this Thursday! Love the "Sorry Patrick" sticker!

WHERE CAN I GET THIS STICKER!!

Gold. My neighborhood. Ps. The narrows episode showed a culvert pipe and there was a statement about it and erosion. Forty years ago I used to camp down there, literally drive within 100 yard's of that pipe. There's been huge erosion there. Literally the whole thing I knew is gone. If it wasn't the hard clay line at waterline that control the channel the entire area would be different.

You’re talking about down in the Chehalis River area and of pots and kettles. I’ve heard that Lake St Clair near this same area (east of Olympia off Yelm Hwy) is a classic pot and kettle lake. The lake is primarily spring fed from a huge drainage aquifer extending from Chehalis over to Yelm. The lake has no outflow creeks. It is an interesting shaped lake with deep pot holes in various areas of the lake. Any idea how that lake was formed and why it is so different from other area lakes?

Rock on Nick! 🤘😎🤘

1:17:12 I SWEAR YOU ARE A BROTHER FROM A DIFFERENT MOTHER NICK!!!! AWESOME TALK!!!

Thanks nick! Sorry patrick.

Donna Chassie, would smile, brightly, if She could see a video, like the one done, about Dry Falls.

One difference in the glaciation of western versus eastern Washington is that at the terminus of the west the ice was flowing uphill and basically downhill in the east. Rivers were flowing into the receding glacier possibly erasing terminal moraines in dammed lakes . In the east the rivers cutting through the terminal moraines already existed as sub glacial outflow leaving the moraine between these rivers..

Going past the window can be a running gag that gets more and more silly. Ride a bike, skateboard, dribble a ball whatever.

I just found out the stanza "It ain't going to rain no more more" comes from Skye Colleys song "Ain't no flies on the methow".

That "race track". Its not labeled in Google Maps. No granstands. No garage area or pit area. Private playground? It makes sense that there's no major moraine given the likely outwash of meltwater from the Puget Lobe. The same applies to the Okanogan Lobe. Although l wonder just how much of the Okanagon Lobe's entrained sediments got dumped into the Columbia. One thing about the Puget Sound Lobe and its predecessors from previous glacial advances. The hills that were leved in Seattle in the early 20th century. Did these mark the points of previous advances? Would maps drawn in the period previous show profiles?

Wow!!! Merci Millefois!!! such amazing discussion!!! So a point I thought about, after all was said and done (I have had two watch some of these segments several times to process everything) is it possible that in addition to coming ourt over the Chelhalis, the Outflow from the Puget Lobe went Back north underneath the ice (downhill), and therefore caused further erosion and deepening of the sounds and channels? Also, someone in the chat brought up Bellingham, and for some reason I always remember it being like an artesian fan (term?) If there was Glacier outflow and Snowmelt coming downhill beneath the glaciers, what would that graphic look like? How would it affect the submarine canyons of the Straights of Juan de Fuca, and the Salish Sea? I really hope I can get caught up on this series before April!!!

I have been on johnson creek road and seen large rock outcroppings. Seemingly hidden amongst gentler hills w 0 rock exposed. I wanndered about the cliff faces w interest.

The Black River is known to flow in 2 directions when the water is low. The chehalis is also known to have a hump in it near the town of Ground Mound. The chehalis drained most of the puget lobe as it receded. The vashon advance is shown to have advance and stopped against steep bedrock slopes marcked by erratics high on those slopes. Bretz mapped this terminous neat capitol peak in the north side of the black hills and hills on the south side of the valley near tenino . There are gravel trains filling valleys crossing north side of black hills to the SW where it merges withbthe valley fill of the chehalis near porter. Pat pringle noted a a prarie area near offut lake with scattered small boulders of andesite having a provinence from bedrock somewhere to the north. When he told me about this they were thinking thesebboulders represented outburst flood deposots. Pat pringle formerly dger and taught at centrailia college. Some terraces along the cowlitz are destibed as being capped by loess. Look at the lidar in the area of the nisqually river near its mouth east of lacey and near Yelm . Also the lower Deshutes river. The topography and land forms are truly odd for glacial terraine in WA. Kettles and lots of odd stuff. Spectacular. Check out pringles mapping if its published published for offut lake

San Rafael CA.

Ogden Utah

C'mon Nick. Just ask him. Are there any giant ripple marks in front of the Puget Lobe?

Hi guys! Bough beds = branches beds

thank you !

There are the same mounds that are in Mima mounds go all the way to Tenino off off the 507. I found that fascinating.

What ive wondered is how far south the older glacial advance of ice extended. Other areas around edges of the chehalus drainage rhat also have some odd rolling topography and mammoth have been found in some of theses areas of rolling hills.

Nick where would the puget sound have drained thru , medicine creek?

5 by 5 Dublin

As for further investigations of potholes, wouldn't have to begin early a letter writing campaign to get a spot in a University to effect moving from his teaching job? We sometimes forget the pace of life predicated by snail mail. No email and telegrams are short and abrupt and relatively expensive.

I'm trying to do the "homework" he suggested: figuring out what formations are called right where we live. Having a hard time figuring this out. Are we talking about glacial till? I'm in southwest Illinois and think I've come up with Glasford formation (guessing MIS 6) and Payson Till (MIS 8) but I really haven't got a clue. Anyone have guidance?

Violet prarie extends to grand mound from tenino..

Same here...... cute sticker.

Bars of gravel deposited by subglacial flows...Nanaimo Bars?

If eskers are formed under the ice (according to Wikipedia, "at glacial maximum"), that suggests to me that there was no massive flooding occuring post-glaciation. If floods did occur as the glaciers melted, would that meltwater not wash away the eskers if it were "massive" ?

All I know is that we gotta bring back hydraulic mining. It works!

Tusnmi will effect coastal sediment

Amazon has the puget sound glaciation in reprint

Lidar us out there and if you look cl9se you can see all sorts of landforms that tell the glacial stories. There are no in depth studies of the older glaciations in the puget lowland south of olympia and extending down into lewis county. Course the cascade glaciers have contributed to the glacial sediments and land forms. Logan hill formation is thought to be an older sequence of glacial depisits including till. Caps the hills. Provinence of much of the rocks contained with are definitely not local.

😎

5x5 😅

Comments on motor travel in the early 1900s. Motor vehicles were exceedingly unreliable in the first decade or two of the 1900s. Great strides were taken in motor vehicle technology due to military interest because of the Great War (WW-I). For testament, refer to the 1919 military expedition from Washington DC to San Francisco by vehicle, that brevet Lt. Col. Dwight D. Eisenhower was included in. If Bretz made an expedition from Seattle to eastern Washington, it would have been by train.

The Frazier and Columbia rivers start very near each other. Very similar to the Browns Valley and Minnesota river and the Red River divide.

What are the thoughts on oceanic Tsunami coming on shore and under the ice sheets? Possibly big enough to over top low Cascades valley into the columbia river basin?