Jeff Tepper couldn't have said it better. The worlds largest Geology class! So amazing we get to listen and learn from all these amazing people. Thank you everyone including you Nick because without you, none of this would be happening.
I love the idea of Getting All of Geologists on this Channel .They are listening with an open mind to each other’s ideas Everyone has a common goal, they are ALL are asking questions and seeking answers based on field evidence.
In a time when we hear science is settled… or scientists being afraid to speak openly& freely it is a beautiful thing to hear we’re “in the biggest geology class” learning together Here you’ve created a positive space where people can speak a bit more freely … and we get to watch and learn about what makes the scientific method so powerful … Prof Z- thanks for teaching how to create a space where people can exchange ideas and disagree respectfully… question - - is Basil saying the hanging slab a piece of the craton?? I wonder id that the “sticky-outy” piece of craton that stopped things up?? Or is it piece that just got tangled up on the accreted terrain and dragged away if the hit and run dragged something away
This was interesting. I've been watching Zentner videos since 2020, and am neither geologist nor geology student. After all those videos and interviews, I've finally reached a point where - even though I still don't remember or understand most of the scientific names being presented - I can follow the conversation, and it kind of makes sense to an old guy who's just a curious onlooker without any real expertise. Widening my horizon. Thanks!
Nick has taught me so much since those early pandemic days. I’ve always loved rocks. Now I have more of an understanding of rocks and how they come to be.
Loved this session! One cannot watch one of these episodes with Jeff Tepper and not come away with these sense that he is (1) a exceptional scholar and an outstanding geologist, (2) he is a true gentleman, one who is humble and non-pretentious, (3) he is a esteemed colleague in the geological community to many, (4) he has an intellect that is big enough to hear competing ideas and theories and rather than becoming threatened, he considers them and is willing to modify some of his ideas as a result. He is an incredibly impressive geologist and human being. Thanks for bringing him back Nick!
You’d think that all the geological conferences would have brought your guests together years ago. Your broadcasts are a boon to the science of geology. You deserve a honorary PHD. You are a credit to your parents who let you set your own path.❤
Not sure if you realize this, but it's like watching history in action, in real-time. The way this story is unfolding and evolving is simply amazing. Eventually this will end up in geological textbooks as a standard course. Just grateful to be here to witness it unfold.
Yes Sir this is a huge classroom. Also with interested persons who may not be able to be in classroom with you. It's a real blessing not only to learn but be watching live cutting edge commentary buy some of the most respected and thoughtful persons.. Thank you Nick and every one of your fine guest's. The excitement is palipal.
Yay! I observed olivine present in Absaroka volcanics 70 years ago; years later I learned that olivine is associated with magma originating in the upper mantle. And now this discussion ties it together, thanks to both of you. Very satisfying indeed!
Having watched a number of the Idaho slab curtain videos today's episode turned on some lightbulbs. This is challenging for me but as Nick said sometime back you have to dive deep and stick with it. Thanks to all from a fan who has learned plenty and looks forward to seeing this great story being told.
Wonderful and interesting discussion. Really great and thought-provoking information. Thank you, Jeff Tepper and, as always, Nick Zentner. These ideas intrigues me a lot. The sinking of old slabs and the different reactions that might create within the mantle are fascinating phenomenon.
Thanks Nick, for bringing people from various pov's to discus this so reasonably. It's a real head scratcher, And I think you do a great job getting the sides of the story. Too bad we can't peel back the chocolate cake to peek under.
I would like to put forward an "analogy".... Nick is the "Independent" Mechanic that is listening to all the other "Mechanics" and trying to both find and fix the problem through conversing with them.. No offence or harm was given to any Mechanic in the making of this video. You gotta love it.
Back in the early 1980's my college professors, located in central PA, commented that in the Rockies and the west it was so complicated that no one really knew what was going on -- but they brought up the *possibility* of exotic terranes. Well, 40 years later we might finally be figuring it out.
I do wish Jeff would comment on broader ideas but either way, this was a fun talk. Definitely interesting to watch these ideas unfold in a format I can handle lol. Aka TH-cam and more casual chats. Thx guys
Perfectly said by Jeff, welcome to "the world's largest geology classroom"😃💞💗✨Wow, intriguing to be able to see and learn some of the things that Jeff described in 3D on a 2D map... That was amazing, Jeff!!✨ 😏Nick, I knew it, I'm excited for the prospect, thank you!!💞💗😄
After suggesting that I was thinking of going back to review Karin Sigloch’s 2014 Barcelona presentation to refresh my understanding of seismic tomography and geodynamics, I did just that and watched it more than once. I am glad I did because I see a pattern, by your research and discussions here that I find very interesting because to me this is in nearly realtime. Of course I mean the actual scientific methodology being shared and used. I find this exciting! Thank you Nick and Jeff.
Thanks Jeff and Nick! Cool how Jeff's data matches Spenser's tomography. Make a good case for both. And I've had to set up a new 'Idaho Miniseries' folder with docs and screenshoots.
I'm in Washington. I studied Historical Geology at South Seattle Community College in 1983, Spring Semester. Plate tectonics were a new theme in our shiny new textbooks. We were not told that the Faralon Plate extended past the Salish Sea & the Cascade Range. I have enough problems telling my adult son why there are zero dinosaurs in Eastern Washington! The dinosaurs were wiped out 65 million years ago, long before Eastern Washington was solid land. 😉😅😂🙄🙄🙄🙃🙃🙃
Great show, gents. It IS the world's largest geology class. Hmmm--wonder whether CWU offers any senior citizen credits for these classes. Probably could get at least a coupon for one day's free CWU parking and a morning bun at Vinman's.
Just a question? Do these help to explain the oft ignored igneous complexes in SE Missouri and in mid to southern Mississippi. I forget the dating assigned to these.
I keep looking for a theory of everything, and I probably will not get it, but I would like to know what caused the shift in the Emperor Sea Mount, was Siletzia terrane just something that filled a void on the coast of the PNW, or did it have a larger effect at least in the PNW even if it had no effect in Idaho or east. Was the Farallon Plate completely subducting under California the reason the Sierra Nevada range went extinct, and allowed for the rifting of the Basin and Range. Did the Farallon Plate or Siletzia terrane movements uplift the Rocky Mountains. Did the Klamath and Clarno/Blue Mountains do anything besides become attached to North America. I realize that most of this is about Washington State, but please don't leave out Oregon. Nick, I am actually more interested in this Idaho magmas because it seems like we are getting closer to explaining the Rocky Mountains and west to the ocean, and maybe the Cascade arc volcanoes are the simplest things to explain about the western North American continent probably because they are the most recent activity of the west coast. I look forward to more of this class with multiple guest lecturers who are learning from each other.
Where does the Sliderock volcano fit into this? Why is it where it is, when it erupted, and what was the source of the magma? The volcano is 30 miles south of Greycliff MT.
Given that modern (~46 MA to present) Cascade volcanic arc having older volcanoes to the west and younger to the east was attributed to flat slab subduction until clockwise rotation also explained the arc migration, but arc migration is also a recognized occurrence (as Robinson explained about the CPC/CMB) and there was clockwise rotation from 85-45 MA (according to Basil), could clockwise rotation for the post 100 MA account for the arc migration in the CPC/CMB; and since everything was moving generally oblique left lateral pre 100 MA, could counterclockwise rotation account for the arc migration pre 100 MA? (I'm not certain that there would have been counterclockwise rotation, but guessing based on the mechanics) The diagram (at ~7 minutes) shows the slab breaking deep, but I imagined the break would be at the subduction zone trench, not deep. Would the subducted slab be more brittle at the trench and more ductile deeper (for a given age of the ocean floor slab, younger slab being more fresh/ ductile-ish than old)? Jeff said that the break for WA challis magmas had to occur ~60 MA in Montana, which would need to be done deep and before Siletzia accreted -right (?) Or does he mean under where Montana is currently, and having the break be at the subduction zone trench west of Insular (the tail of the chopped up ⚔waterskiing 🧟zombie 🐋mega-whale🐳) OR in the Columbia embayment while Siletzia is still west of it all? Is this the Idaho slab curtain? (This is break #1 right? .. which would put Siletzia and the Yellowstone hotspot off the coast of California where the blue & green overlap in the diagram at ~30:00) (?) Also, can the second break occur in the same place(or approximately) & at approximately the same time as subducting a spreading ridge? 🤯😵💫😻💖💞
He never goes beneath the Moho. Well since the Moho defines the bottom of the crust in some parts of the US west he could be said to go below the Belt with that Supergroup.
Great talk. Could you go theough the farallon slab blue and green diagram again? Ok, so next video. Can we get w tomographer and tepper and tikov together? Dream team version 3
These Geologists are all seeking answers And they are intelligent enough to know that all don’t have all of the answers When more information( data )becomes available interpretations will change
If subduction is occurring under Insular & Intermontane (the chopped up ⚔ waterskiing 🧟 zombie 🐋 mega-whale 🐳) in a fairly flat manner, is there enough of a difference in the crustal depth of the mega whale vs the craton of NA to jam up the subducting plate to cause a break or steeper subduction? It's interesting that the Idaho slab curtain is approximately the same shape as the Idaho dog leg / arm pit and that they are fairly / somewhat close to each other (but the curtain not from the same time as the craton plate boundary). 💖💞
So strange no one is using the geology of South America as a modern analog. There is a slab tear down there with both flat slab subduction north of Chile and high angle subduction under Chile. There is migrating magmatism in Chile. All of this from the economic geologists.
They are one of the ranges associated with the Laramide Orogeny. A huge fault-bounded piece of underlying Wyoming craton (continental crust) consisting of Archaean to Proterozoic rocks was elevated 2 miles above present sea level while adjacent Big Horn Basin strata were folded and lowered to about 1mile below current sea level. No volcanism.
@@richarddavies7419 This is so cool. Thank you for this information. My son and I climbed Cloud Peak a decade ago when he was an Eagle Scout and it always struck me as odd that a mountain range would appear in the middle of Wyoming, not along a plate boundary.
@@cosmotraumatika7474 I have been there a few times, once camped on the flat area on the Tongue River. BTW I meant Paleozoic, not Proterozoic, as the Ordovician Bighorn Dolomite is named for those mountains, well exposed near Cloud Peak.
Hmm. There were two little red icons on that one diagram near the diamond mine in Arkansas. A similar one in northeast Kansas....does Kansas have diamonds?
Looking at Jeff's slides, I was wondering what is going on with the Wyoming craton. Is it really being significantly eroded in just a few million years after being essentially unaltered for 3.5 (?) billion years? What is happening there?
Nick, It’s imprecise to present the 50, 60, 70MA or more aged geology in the context that it happened where the evidence outcrops are in Washington. Why isn’t the NW Rotation and B&R Extension being considered by these geologists to show their diagrams with these presentations happening up to 180 miles South and up to 300 miles East? Are these geologists denying a YHS/Mendocino-Siletzia connection? I get the big picture story presented, but the Washington-Centric presentations seem out of context to me and perhaps other faithful viewers.
How do these models of the Farallon plate and it's breaking and bending tens of millions of years ago relate to the Yellowstone hot spot with its apparent origin about 17 million years ago? I note that the track of the hotspot moves west to east, which does not seem to mesh with the east to west track of the magmatism you gents are discussing.
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Jeff Tepper couldn't have said it better. The worlds largest Geology class! So amazing we get to listen and learn from all these amazing people. Thank you everyone including you Nick because without you, none of this would be happening.
I love the idea of Getting All of Geologists on this Channel .They are listening with an open mind to each other’s ideas Everyone has a common goal, they are ALL are asking questions and seeking answers based on field evidence.
youtube-geo-diplomacy
YES! LOVE IT. Much better TV than reruns of boring sitcoms & violent detective TV shows. 😊
@johnplong3644
the geologists at the university are free, you can collect them like pokemon
i have 7
In a time when we hear science is settled… or scientists being afraid to speak openly& freely it is a beautiful thing to hear we’re “in the biggest geology class” learning together
Here you’ve created a positive space where people can speak a bit more freely … and we get to watch and learn about what makes the scientific method so powerful
… Prof Z- thanks for teaching how to create a space where people can exchange ideas and disagree respectfully…
question - - is Basil saying the hanging slab a piece of the craton?? I wonder id that the “sticky-outy” piece of craton that stopped things up?? Or is it piece that just got tangled up on the accreted terrain and dragged away
if the hit and run dragged something away
Thankful to be an auditor in *"The World's Largest Geology Class!"*
This was interesting. I've been watching Zentner videos since 2020, and am neither geologist nor geology student. After all those videos and interviews, I've finally reached a point where - even though I still don't remember or understand most of the scientific names being presented - I can follow the conversation, and it kind of makes sense to an old guy who's just a curious onlooker without any real expertise. Widening my horizon. Thanks!
I am a newbie here,but in the same boat ! Thank you Dr. Zentor !!!
Nick has taught me so much since those early pandemic days. I’ve always loved rocks. Now I have more of an understanding of rocks and how they come to be.
Jeff Tepper is GREAT i could listen to him all day
Loved this session! One cannot watch one of these episodes with Jeff Tepper and not come away with these sense that he is (1) a exceptional scholar and an outstanding geologist, (2) he is a true gentleman, one who is humble and non-pretentious, (3) he is a esteemed colleague in the geological community to many, (4) he has an intellect that is big enough to hear competing ideas and theories and rather than becoming threatened, he considers them and is willing to modify some of his ideas as a result. He is an incredibly impressive geologist and human being. Thanks for bringing him back Nick!
I enjoyed this and it helps me understand the Absarokas better
Hi Myron! Looking forward to seeing your Absarokas video!
Jeff Tepper makes sense. Good podcast Nick.
BTW, thank you both for making this fascinating scientific discussion open to the public. It is really valued!
Best Collaboration of Geology Education including the Citizen Scientist in the world. Thanks! It's great to learn together.
You’d think that all the geological conferences would have brought your guests together years ago. Your broadcasts are a boon to the science of geology. You deserve a honorary PHD.
You are a credit to your parents who let you set your own path.❤
Not sure if you realize this, but it's like watching history in action, in real-time. The way this story is unfolding and evolving is simply amazing. Eventually this will end up in geological textbooks as a standard course. Just grateful to be here to witness it unfold.
Yes Sir this is a huge classroom.
Also with interested persons who may not be able to be in classroom with you. It's a real blessing not only to learn but be watching live cutting edge commentary buy some of the most respected and thoughtful persons.. Thank you Nick and every one of your fine guest's. The excitement is palipal.
Thank you !
Yay! I observed olivine present in Absaroka volcanics 70 years ago; years later I learned that olivine is associated with magma originating in the upper mantle. And now this discussion ties it together, thanks to both of you. Very satisfying indeed!
All this is very much appreciated!
i like the in auditorium lectures where nick tears it up on stage. . that format works so well.
Tepper nailed it, this IS "the world's largest geology class"!!!
Having watched a number of the Idaho slab curtain videos today's episode turned on some lightbulbs. This is challenging for me but as Nick said sometime back you have to dive deep and stick with it.
Thanks to all from a fan who has learned plenty and looks forward to seeing this great story being told.
Wonderful and interesting discussion. Really great and thought-provoking information. Thank you, Jeff Tepper and, as always, Nick Zentner. These ideas intrigues me a lot. The sinking of old slabs and the different reactions that might create within the mantle are fascinating phenomenon.
"I'm above the moho." What a fantastic t-shirt
He nailed it the Worlds biggest geology Class I get mad if I miss class. Thanks gang.
Thanks Nick, for bringing people from various pov's to discus this so reasonably.
It's a real head scratcher, And I think you do a great job getting the sides of the story.
Too bad we can't peel back the chocolate cake to peek under.
This was excellent, Nick. I am learning so much! (Good job letting him talk, even with his pauses.)
Thank you gentlemen. Good stuff!
Wow what an interesting conversation. Good job, so fun and amazing!
What a treat to arrive home from vacation to a new video posted 30 minutes ago!
Thanks Nick. Learning a lot about Idaho!!!
So cool that Jeff learned about the tomography of the slab curtain from watching the livestream with Spencer Fuston from Houston!
This series has been quite informative and fascinating.
Great class thanks Nick and Jeff. Loving the way the catalyst (Nick) is asking questions and bringing thinkers together.
I would like to put forward an "analogy".... Nick is the "Independent" Mechanic that is listening to all the other "Mechanics" and trying to both find and fix the problem through conversing with them.. No offence or harm was given to any Mechanic in the making of this video. You gotta love it.
Your interviews are so interesting, Nick, and bring diverse ideas to people who would normally never hear them! Thanks so much for doing these!
Back in the early 1980's my college professors, located in central PA, commented that in the Rockies and the west it was so complicated that no one really knew what was going on -- but they brought up the *possibility* of exotic terranes.
Well, 40 years later we might finally be figuring it out.
I do wish Jeff would comment on broader ideas but either way, this was a fun talk. Definitely interesting to watch these ideas unfold in a format I can handle lol. Aka TH-cam and more casual chats. Thx guys
Perfectly said by Jeff, welcome to "the world's largest geology classroom"😃💞💗✨Wow, intriguing to be able to see and learn some of the things that Jeff described in 3D on a 2D map... That was amazing, Jeff!!✨ 😏Nick, I knew it, I'm excited for the prospect, thank you!!💞💗😄
After suggesting that I was thinking of going back to review Karin Sigloch’s 2014 Barcelona presentation to refresh my understanding of seismic tomography and geodynamics, I did just that and watched it more than once.
I am glad I did because I see a pattern, by your research and discussions here that I find very interesting because to me this is in nearly realtime. Of course I mean the actual scientific methodology being shared and used. I find this exciting! Thank you Nick and Jeff.
Love your videos and approach as always. Keep it up, Nick. These topics are fascinating.
Great video, great channel. Such an interesting discussion. Thanks professor’s.
Thanks Jeff and Nick! Cool how Jeff's data matches Spenser's tomography. Make a good case for both.
And I've had to set up a new 'Idaho Miniseries' folder with docs and screenshoots.
I was just looking for what I was going to watch tonight.😊
Me too :)
Hi, this time from Connecticut. I really need to hear from Jeff. 👍🏼
Magmas East of Idaho was a James Dean movie a sequel to East of Eden. It was only popular in Boise.
Always learning with Sir Jeff, pedrology...what rocks and their minerals are formed in the challis magma
Thanks for sharing❤
You gotta love it!!!
Good stuff!
Slides help a lot!
Worlds largest geology class. There ya go Nick. You have the worlds largest geology class.
Here I am jest trying to follow along. It is quite interesting, and now it gets bigger heading out to sea ok thank you ALL, especial Mr. Tepper
SHARING ON FB. 😊
I'm in Washington. I studied Historical Geology at South Seattle Community College in 1983, Spring Semester.
Plate tectonics were a new theme in our shiny new textbooks.
We were not told that the Faralon Plate extended past the Salish Sea & the Cascade Range.
I have enough problems telling my adult son why there are zero dinosaurs in Eastern Washington!
The dinosaurs were wiped out 65 million years ago, long before Eastern Washington was solid land. 😉😅😂🙄🙄🙄🙃🙃🙃
There are some dinosaurs bones in washington
Great show, gents. It IS the world's largest geology class. Hmmm--wonder whether CWU offers any senior citizen credits for these classes. Probably could get at least a coupon for one day's free CWU parking and a morning bun at Vinman's.
Just a question? Do these help to explain the oft ignored igneous complexes in SE Missouri and in mid to southern Mississippi. I forget the dating assigned to these.
Magmas East of Idaho - that title has a nice ring too it, don't know why - sounds as if it could be a title of an American novel 😀👍
I keep looking for a theory of everything, and I probably will not get it, but I would like to know what caused the shift in the Emperor Sea Mount, was Siletzia terrane just something that filled a void on the coast of the PNW, or did it have a larger effect at least in the PNW even if it had no effect in Idaho or east. Was the Farallon Plate completely subducting under California the reason the Sierra Nevada range went extinct, and allowed for the rifting of the Basin and Range. Did the Farallon Plate or Siletzia terrane movements uplift the Rocky Mountains. Did the Klamath and Clarno/Blue Mountains do anything besides become attached to North America. I realize that most of this is about Washington State, but please don't leave out Oregon. Nick, I am actually more interested in this Idaho magmas because it seems like we are getting closer to explaining the Rocky Mountains and west to the ocean, and maybe the Cascade arc volcanoes are the simplest things to explain about the western North American continent probably because they are the most recent activity of the west coast. I look forward to more of this class with multiple guest lecturers who are learning from each other.
There's also three kimberlite veins at the Wyoming Colorado border
Where does the Sliderock volcano fit into this? Why is it where it is, when it erupted, and what was the source of the magma? The volcano is 30 miles south of Greycliff MT.
I should have majored in Geology
Given that modern (~46 MA to present) Cascade volcanic arc having older volcanoes to the west and younger to the east was attributed to flat slab subduction until clockwise rotation also explained the arc migration, but arc migration is also a recognized occurrence (as Robinson explained about the CPC/CMB) and there was clockwise rotation from 85-45 MA (according to Basil), could clockwise rotation for the post 100 MA account for the arc migration in the CPC/CMB; and since everything was moving generally oblique left lateral pre 100 MA, could counterclockwise rotation account for the arc migration pre 100 MA? (I'm not certain that there would have been counterclockwise rotation, but guessing based on the mechanics)
The diagram (at ~7 minutes) shows the slab breaking deep, but I imagined the break would be at the subduction zone trench, not deep. Would the subducted slab be more brittle at the trench and more ductile deeper (for a given age of the ocean floor slab, younger slab being more fresh/ ductile-ish than old)? Jeff said that the break for WA challis magmas had to occur ~60 MA in Montana, which would need to be done deep and before Siletzia accreted -right (?) Or does he mean under where Montana is currently, and having the break be at the subduction zone trench west of Insular (the tail of the chopped up ⚔waterskiing 🧟zombie 🐋mega-whale🐳) OR in the Columbia embayment while Siletzia is still west of it all? Is this the Idaho slab curtain? (This is break #1 right? .. which would put Siletzia and the Yellowstone hotspot off the coast of California where the blue & green overlap in the diagram at ~30:00) (?)
Also, can the second break occur in the same place(or approximately) & at approximately the same time as subducting a spreading ridge?
🤯😵💫😻💖💞
Lovely theories.
Look in the Fiji Island 500-600 KM deep earthquakes, maybe 3 plates subducting all at once
Damn this is good! (sorry Patrick!)
He never goes beneath the Moho. Well since the Moho defines the bottom of the crust in some parts of the US west he could be said to go below the Belt with that Supergroup.
Great talk. Could you go theough the farallon slab blue and green diagram again?
Ok, so next video. Can we get w tomographer and tepper and tikov together? Dream team version 3
These Geologists are all seeking answers And they are intelligent enough to know that all don’t have all of the answers When more information( data )becomes available interpretations will change
If subduction is occurring under Insular & Intermontane (the chopped up ⚔ waterskiing 🧟 zombie 🐋 mega-whale 🐳) in a fairly flat manner, is there enough of a difference in the crustal depth of the mega whale vs the craton of NA to jam up the subducting plate to cause a break or steeper subduction?
It's interesting that the Idaho slab curtain is approximately the same shape as the Idaho dog leg / arm pit and that they are fairly / somewhat close to each other (but the curtain not from the same time as the craton plate boundary).
💖💞
So strange no one is using the geology of South America as a modern analog. There is a slab tear down there with both flat slab subduction north of Chile and high angle subduction under Chile. There is migrating magmatism in Chile. All of this from the economic geologists.
Well just uploaded I see
Wonderful information. Could the Bighorn Mountains in Wyoming be associated with this flat-slab process?
They are one of the ranges associated with the Laramide Orogeny. A huge fault-bounded piece of underlying Wyoming craton (continental crust) consisting of Archaean to Proterozoic rocks was elevated 2 miles above present sea level while adjacent Big Horn Basin strata were folded and lowered to about 1mile below current sea level. No volcanism.
@@richarddavies7419 This is so cool. Thank you for this information. My son and I climbed Cloud Peak a decade ago when he was an Eagle Scout and it always struck me as odd that a mountain range would appear in the middle of Wyoming, not along a plate boundary.
@@cosmotraumatika7474 I have been there a few times, once camped on the flat area on the Tongue River. BTW I meant Paleozoic, not Proterozoic, as the Ordovician Bighorn Dolomite is named for those mountains, well exposed near Cloud Peak.
s Siletzia approaching the margin or is the margin approaching Siletzia
Very intriguing stuff, but..... 😁 hasn't seismic imaging determined that the Faralon slab is not where this presentation needs it to be?
Hmm. There were two little red icons on that one diagram near the diamond mine in Arkansas. A similar one in northeast Kansas....does Kansas have diamonds?
Oooh. Found some papers. Yes, kimberlites, no one has found diamonds....yet...😉
What's the interaction between all of this and the birth of the Yellowstone hot spot?
Sort of, if "birth" is connected to creation of Siletzia out in the Pacific by an enormous outpouring of basaltic lavas from the"hot spot".
Looking at Jeff's slides, I was wondering what is going on with the Wyoming craton. Is it really being significantly eroded in just a few million years after being essentially unaltered for 3.5 (?) billion years? What is happening there?
Idaho 🌋
🥔🥔🥔🥔🥔
What about the magma's West of Idaho?
Nick,
It’s imprecise to present the 50, 60, 70MA or more aged geology in the context that it happened where the evidence outcrops are in Washington.
Why isn’t the NW Rotation and B&R Extension being considered by these geologists to show their diagrams with these presentations happening up to 180 miles South and up to 300 miles East?
Are these geologists denying a YHS/Mendocino-Siletzia connection?
I get the big picture story presented, but the Washington-Centric presentations seem out of context to me and perhaps other faithful viewers.
How do these models of the Farallon plate and it's breaking and bending tens of millions of years ago relate to the Yellowstone hot spot with its apparent origin about 17 million years ago? I note that the track of the hotspot moves west to east, which does not seem to mesh with the east to west track of the magmatism you gents are discussing.
Idaho Batholith A to M