Great videos , you explain things so well but the map of the western cascades it goes all the way to Mount Shasta.

After decades of natural history studies in every field but geology I am finally taking the deep dive and finding out the first thing to really understand is...deep time! Once you really get a grip on the geological time frames all the complexity of it starts to make sense. Thanks.

awesome video so well explained and illustrated, thank you so much

Hey great job! I’ve been studying papers on the Pacific Northwest. Your information is right on the dot! Well done sir!

Dude. What’s your name? I’ve been calling you Steve for the duration of these field trips.

Chat gpt gave me the recommendation of this video, when I asked for short but detailed explanation for this topic. This was worth it. I didn’t had to watch other relevant videos to get what I specifically needed.

If North America and Siletzia crammed into each other, it seems there would be compressional pressures on the continent. What was the cause of the extension event referred to in the Okanogan section?

Interesting and well done. I'll be out there for three months in a couple of weeks. I plan on looking at your stops. Thanks! 😀

Good job!

Yes. the Pacific North West ends at the Canadian border.

Just found you. Watched part 4. Now starting at 1.

Easy to understand and thorough. Glad to find your channel. I will subcribe.

You might want to go back 1 Ma before the Missoula flood event's.

For so little views and so little subscribers you've done a really good job here thank you.

First off I want to say that the star real helps. But I have some questions about the passive margin that is created with the initial breakup of Rodinia. The map style changes after that and a bunch of time is skipped so I am just trying to make sense of what is taught about happens to that ocean crust that is being created between Laurentia (where the star is) the Australian and East Antarctica plates. It seems like it is very similar to the mid Atlantic riff. So if that’s the case than a passive margin, transitioning from the continental crust of Laurentia to the oceanic crust to its west should still be there. And a fairly significant chunk of oceanic plate at that. Here’s my issue, I’ve always had an issue with the breakup of Pangea, especially on the west coast, having to deal with the Faralon plate subducting right away. It just seems like it’s an additional variable that would keep Pangea together. Having a passive margin off the west coast of Pangea, with westward subduction, would add slab pull as a variable to help tear Pangea apart. There is a bunch of tomography research to support this idea too. Looking under the west coast the Faralon plate is just not there in its current place. The work of Karin Sigloch actually seems to show that the Faralon, which in her work is actually the extended oceanic crust from the passive margin of west coast Pangea. I know the traditional model teaches that Pangea separated and subduction of an oceanic crust began right away, but like I said the Tomograpghy of subducted plates seems to suggest the old model doesn’t really work anymore. I guess I’m just wondering your thoughts. I love detail you go into in this series. Actually showing locations that highlight the different processes over the millions of years of tectonic activity. Sorry if this was long.

Good compact overview of metamorphic terrains!

Serious question. I live on a puget sound beach. Up north. We are suffering erosion due to bulkheads. I have lived here a long time and 10' of sand is gone in places. There is a tree coming out of the sand. There are what appear to be stumps coming out of the deepest erosion. This is in an area prone to slides and near the south Whidbey fault. I'm thinking drowned stumps by some sort of tectonic/tsunami event in the past. Testing would be possible on the wood. Who would one contact?

Thanks - like you video - please just you light to come from the front so you are more vissable

Enjoyable, enthusiastic presentation - the maps and images are helpful in bringing it all to life.

well done

Superb series. I've been looking around for some sort of geological overview of the region, and your four part series is the very best synthesis I have run across. Your ability to put one billion years in the context of critical phases, illustrated with specific examples is a terrific combination. Thanks much for taking the time to put everything together at a level engaging a wider audience. Great work.

Well done!

Learned alot from you. Thank you.

Thanks. These are really great videos: so helpful to see the science and the rocks explained in situ, rather than just relying on diagrams.

I enjoyed this video. Thank you 👏

Thanks for the heads up. I just found some awesome rocks in the ditch at site 18 near Diablo which have very small examples of Garnet. There's also allot of gold colored flake mixed in and it's very crumbly. Not sure if the flakes are actually metallic or small crystals that looks metallic.

What do you get when you take the P out of Pearl beer? An empty can.

Really fast-paced. The "field trip" approach is excellent.

Ken-elly-uh, not Kwes-nelly-uh. But, as others have said, a succint overview of a very complex process.

Thank you so much for this information and your show is amazing.

Please continue these geologic field trips of our PNW. Well organized, produced, and presented. 👍🏾

I am more of a westward subduction type

nicely explained. You don't talk down to your viewers -- thank you!

Incredibly good job

I really appreciated your series! Great job providing the big picture! However, I didn't catch your name. Highline College is fortunate to have such an enthusiastic sharer of knowledge! Well done!

So this would mean the basalt I drive past everyday are probably products of the rift of Rodinia.

Very good performance on these! I watched all this series today 😊

I want more.

KZbin recommended this channel to me today. I was very impressed at how well it was done and narrated. All very well explained and illustrated. I like the speaker's enthusiasm for the subject. Great job! I hope more people discover this channel. Thank you.

Thank you for that educational tour of the PNW. The magnitude of geologic science given is a reflection of your efficency. Well Done!

Hey, this presentation is pretty good!!!!😊

Dude, your Earth should be tilted 😜 Thanks for the great presentation!

This is a phenomenal amount of info, wonderfully presented. Thank you for this!

So great. My sons didn’t want to watch but gradually started paying attention and are now waiting for the next one. There is no boring terrain in geology.

This was awesome! I didn’t get into geology until COVID, after I’d moved from Spokane to Portland. Metaline Falls is the only thing I’ve visited, but now I have a roadmap for a future geology trip to the Spokane area!

Hello. I'm really enjoying your videos, learning a lot and gathering geological data. @9:30. There is more than one way to polish & scratch bedrock. Yes, glaciers are one way. But so is impact ejecta and plasma-Mach shockwave from an Impact-phase Comet. I keep asking if geologists are studying Planetary Collision Dynamics? No one has an answer? Newton's 2nd & 3rd laws apply to Impact-phase comets, slamming into Earth's atmos, crust & lithos. Fundamental physics & Thermodynamics applies. 🖖🤔♻

Zaaz

A nice clear and not too complicated explanation.

Glad to have found you. Keep the book and Marli Miller wrote in the car.

brilliant quick overview, nice!!