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Geology of Portland and Oregon Thumbnail is a picture of Washington.

Eastern Portland is built on a Gold mine.

i am totally just a lover of geology without academic training, I absolutely loved this, thank you!

great video , i noticed you used drain cleaner what acid concentration is in that? i see people using that and most recommend 98% sulphuric acid . Will that affect the treatment like the pure acid make it darker? thank you

Love subduction zones. But can't you speed them up and make them take continental crust down? They would be a great recycling machine.

The PNW has some of yhe most facinating geology on the planet. Of course if you look at the entire world IT'S ALL FACINATING! I suspect having grown up here I'm heavily biased though.

What about mt bachelor? Isn’t that part of the cascade range?

There are alot of diferent types of opal in many different stones that come from Andamooka, quartzite, Agate honey opal and many more opal stones.

🤣 the final flood of the Colombia!

Terrane wrecks ?!?!? 😂😢😂

You're fired.

I’m sure I wasn’t the intended audience for this- I’m just Some Guy™️, but- It was fascinating and delightful to watch a group of people so clearly enthusiastic and knowledgeable talk about something they’re so passionate about!! Thanks for letting me eavesdrop on your zoom meeting, folks!

The name is of Old High German origin, meaning "man from the forest", "bosk" or "brushwood". In modern German, "Horst" is also a translation of English aerie, the nest of an eagle or other bird.

Hmm, nothing about the Washington Selkirks. There isn't much about this area and why we have random volcanic rocks and cones.

I have absolutely no skin in this game, but I couldn't stop watching. Excellent presentation, and now I've learned a lot. This is what youtube was made for.

Thanks for uploading this video. I absolutely love learning anything about geology. I wish there wasn't a black wide strip on the right side of the video,as it makes it much harder to see the legend table. Regardless, I enjoyed this very much,and I love Nick Zentner's lectures as well.

exceptionally helpful

Come here to listen to a lecture and find myself reminded of the white privilege of marching to someone else's land.

What's up with the Rouge valley down south west Oregon I call home.It looks like there was a lot of water here at some point and all the hill tops have big rock poking up. What happened here long ago??????

Its all becoming a liberal hell hole. Soon to be completely ruined anyway.

It's no wonder that living on the west coast is so much more exciting than the east coast. We are all living in a terrane wreck😁😁

There are numerous smoking gun proofs that Earth cannot be a rotating sphere. How can I take seriously any scientists who fail to understand or investigate these simple and obvious truths?

Missoula floods were much older than 18k years ago. There were many right

there needs to be some research on the true geologic history done here: th-cam.com/video/UM82qxxskZE/w-d-xo.htmlsi=P36vWEItQlyR-iwZ

I remember PSA. One-way LA-LV $29.00. Either direction, just as interesting

Since this video was made there has been some rethinking about the Missoula floods. For example, there is evidence that some of the debris and erratics that lie in the channeled scablands of Eastern Washington came from the Canadian Okanogan valley far to the North. Examination of sediment layers near the Wallula Gap seem to say the Area was flooded dozens of times., and that the water sources may have been from under the Columbian Ice sheet.

My grandparents had a property on the quite flat countryside in Washington about 8 miles north of the I-205 Portland-Vancouver bridge on the Columbia River. I remember seeing a 1-1/2 to 2 foot diameter granite boulder in the woods on their property. Is there a geologic explanation for this?

You would "try" to take BC. 😉

Not sure I like the map. Stay out Idaho!

Hello, I enjoyed this presentation and I wanted to comment my position for people to consider: As a Christian, I do my best to reconcile science and the Scripture. I believe most of this presentation is accurate, however, I do not agree with the timeline presented. For instance, in the Scripture records, the separation of the continents occurred after Noah's flood, which would make all this to have begun about 4300 years ago, to which I am inclined to believe rather than millions of years. Most people are not able to wrap their heads around this, but I believe it, especially when considering how energy excited slows down exponentially faster. If Scripture is true, it would present several things. One for instance is, life is a lot more precious than people are taught to believe by evolution and mainstream science. Kind regards.

Awesome! You covered so much great info here. Got to see some more vids. Thank you! I'm from Oregon and familiar with a lot of this, but there's so much fascinating stuff to learn about, just in my home state.

I was better the first time you found me

How far will the content drop when the slip happens

Excellent presentation. Well done. Thank you. 👍👍

Good video. Thunder eag formation was interesting. Thanks.

He says that Mount Hood is about two million years old 9:04. A Google search of 'age Mount Hood' disagrees. Mount Hood is thought to be 500,000 to 700,000 years old.

26:16 Catastrophism with the expected anti-industrialism. The type of ideology that is destroying Portland much faster than geology.

How is geology relative to politics? Bcs Polies have rocks in their heads?

Find me a 50ft Crack about 2 inches wide...packed full of gold😮😮

Didn’t the Biblical flood take forty days of rain? Maybe that’s what you are seeing?

Western Oregon also has dinosaur fossils down near Sweethome east of I-5, though fossils can be found other places west of the new Cascades. The Sweethome area is also a great rock hounding area especially along the Calapoia River. Great presentation...👍👍

Wouldn’t those trees have been uplifted again with stuck portion of the coast having been uplifted for the past 300 years. Also the average for the cascadia subduction zone full rip quakes are 500 years. We are not overdue unless its a partial rip of the southern section then perhaps it’s about 300 years. Thank you Nick Zentner!

I never knew that a lava flow could go underneath subterranean sediments and then erupt as a volcano.

1971 Northridge quake. Then Mt St Helen’s cataclysmic event 1980, not quite a decade.

PSA - people scattered about

I would like to hear a talk about how many millions of years it took for the Grand Canyon of the North Fork of the Toutle River to form after the 1980 Mt. St. Helens eruption?

there is a 30% gray bar that occupies the right side of you video

terrane wreck... thank you

great info for people here in Australia i treat opal and cut as well set into pendants etc go into the fields we use sugar and water, and 98% sulphuric acid need proper face breathing mask and be very careful with the acid, its safe there ha ha only snakes and spiders, no one tells you there last name at the ridge is because more millionaires there than any one knows, and Grawin to good place to dig opal

This video is very informative,. I got questions to several things I've wondered about, even things that I've drove by multiple times. Lol