Amazing quote from Paul Hammond we found in his field notes while doing the inventory: "The life of an individual should be devoted to a goal and pursued relentlessly - in science, music, art, food production, developing items useful to mankind, in medicine, politics. Schooling of young children K-12 should aim to bring out the skill in a person - in art, organization, writing, music, mechanics..."
Good day Professor Zentner this series has been amazing. All of the interviews have been very enlighting and espically the Chris Mattinson demo. I had not at all grapsed the idea the the spearding ridge would make the triple point jump back to the south then travel back north again. If I could ask you one thing please stop justifying yourself for your teaching technique or organization of these episodes. One more comment it is very good to see that there are people in a field of science that are will to have a meaningful openminded discussions. So happy to see and hear that Liz is doing well. God Bless you all.
Thank you all, I watched most live then watched in reruns. My thought calderas are mostly erased over time due to size they just don't stand out. Ayla Pamukcu, does stand out as very bright talented young Geologist. I see a lot more to come
Pertaining to the talk with Ayla and you asking her about the work in Nevada.... when she spoke about the ago old question as to why some magmas do erupt & some magmas stay in the crust to form plutons, it seems to be (as I understood it) why doesn't all of the magma erupt (extrusive) and some is left behind to cool underground (intrusive)... and the Nevada work is with both. It does seem that not all plutons do make it to the surface though, at least not as soon after cooling as some; but maybe they are just waiting for the right circumstances at the right time..
Nick, I enjoyed your red plutons drawings, and being able to orient myself with those plutons on a maps and put them in the perspective of the time periods!!✨💞💗Again, thank you, Nick, I feel you too right here!!🙌😄
Great talk. Never be afraid to meander and go where your thoughts take you. Also, isn’t a pluton that doesn’t rise to surface just the definition of intrusive tock?
I would also think that the source material being melted would explain the tecture of the resulting plutons, eg: lava fields verses river and marsh areas.
Is the 50 degrees of Siletzia rotation a separate rotation event than the modern clockwise rotation starting ~18 Ma with Orofino as the pivot point? If Siletzia had the 1 degree rotation per Myrs separate from the bigger / modern rotation, could that rotation explain the difference between batholith to the north (Chilliwack) and extrusive to the south (Ohanapecosh) and seeming to lower / drop out in the south? (extension from Siletzia's rotation?) It's interesting that Chilliwack was going hard in the ~same time frame as the Adakites in OR; and the Chilliwack had the lull about the same time as the end of the Adakites.... and the more recent slab break, etc. occurring ....and heading into the time of the flood basalts. I'm recalling 11 Ma (from a past video) as being another basalt date.... (about the time Chilliwack gets going again). maybe a connection.. 💖💞🐸
Another thought. The Green river cuts into the Spirit Lake pluton. What is on the floor of that 'valley'? It's not showing as Pluton so what is it? Is it the bottom as in what is below the pluton or just river deposits?
Nick, I aways assumed that when a magma chamber was created, for whatever reason, that when the magma stabilized and started cooling it would shrink. The shrinkage would then create a caldera. I read that somewhere. Has anyone figured how much a certain mass of magma would shrink from conception to total cooling?🙂🤔🧙♂🐩
@ Nick Zentner Watching again after the fact. 1:20:23 I thought that I had already learned from this channel, either from yourself or your guests, that some plutons and batholiths did Not make it to the surface other than by erosion.
Funny episode. Going from "The Holy Trinity" the shortly later on learning from Ava that plutons absolutely do form without creating neither a caldera nor any volcanics. Am I misinterpreting that?
Remembering Basil & Rich G talking about the peraluminous 2 mica S-type granites in Idaho, could that be the source for the muscovite in the Ohanapecosh layers?
I also remembered Mike Eddy talking about peraluminous being associated with near trench magmas, but he didn't mention muscovite. I found (on-line) that Bald Mountain has muscovite, but when I checked for Mt Pilchuck & Tamanowas Rock, it didn't show 'yes' for a result. Bald Mountain (and potentially some other near trench magmas) might be the source for the muscovite in the Ohanapecosh layers(?) ...which also seems more reasonable for traveled distance then my original thought of Idaho. 💖💞
Ayla was saying she has a pluton and "literally across the street" there is a "coeval volcanic sequence". Are the plutons really that close to the surface? I've imagined the much deeper
Why all the lifting? Could it be just isostatic? If there is a overthickened crust at a place (trough orogenesis (meaning here especially the adding of Siletzia), maybe even through "just" adding plutonic bodies into a crust) it starts to rise like a cork in water. It does that for as long as there is an imbalance, which can be several tens of millions of years. Look at the alps. Why was there so much more lifting in WA compared to OR? IMO it is because of Siletzia too. It's addition thickened the crust at the seam massively and that means lifting. (And if the borders of the two pieces of crust were not parallel that would increase the thickening and lifting in places.)
Did a "Cascade Volcanoes" backpacking tour in WA a decade or so ago and visited Goat Rocks, Spirit Lake, Rainier and all that stuff. This brings back some memories and even better some clearer geological insight. Sadly revisiting these spots is out for at least another four years, thus the visuals were a nice reminder of the beauty of the area.
Amazing quote from Paul Hammond we found in his field notes while doing the inventory: "The life of an individual should be devoted to a goal and pursued relentlessly - in science, music, art, food production, developing items useful to mankind, in medicine, politics. Schooling of young children K-12 should aim to bring out the skill in a person - in art, organization, writing, music, mechanics..."
Wow!
A massive thanks to everyone involved in this! From shedding tears to confusion to excitement of getting stuff
Thank you, sir. Love all the questions this program raised. Like a good mystery, I look forward to "T". Hope the Mrs's recovery continues. Take care
Good day Professor Zentner this series has been amazing. All of the interviews have been very enlighting and espically the Chris Mattinson demo. I had not at all grapsed the idea the the spearding ridge would make the triple point jump back to the south then travel back north again. If I could ask you one thing please stop justifying yourself for your teaching technique or organization of these episodes. One more comment it is very good to see that there are people in a field of science that are will to have a meaningful openminded discussions. So happy to see and hear that Liz is doing well. God Bless you all.
I have plenty of information to fall back on!! THANK YOU!
Thank you all, I watched most live then watched in reruns. My thought calderas are mostly erased over time due to size they just don't stand out. Ayla Pamukcu, does stand out as very bright talented young Geologist. I see a lot more to come
Thanks for the shout-out, Nick! I enjoyed watching episode S! :)
Outstanding!
Pertaining to the talk with Ayla and you asking her about the work in Nevada.... when she spoke about the ago old question as to why some magmas do erupt & some magmas stay in the crust to form plutons, it seems to be (as I understood it) why doesn't all of the magma erupt (extrusive) and some is left behind to cool underground (intrusive)... and the Nevada work is with both. It does seem that not all plutons do make it to the surface though, at least not as soon after cooling as some; but maybe they are just waiting for the right circumstances at the right time..
I never manage to catch these live, but today I only missed it by a couple hours.
Nick, I enjoyed your red plutons drawings, and being able to orient myself with those plutons on a maps and put them in the perspective of the time periods!!✨💞💗Again, thank you, Nick, I feel you too right here!!🙌😄
Each pluton is individual, I have only 3 years tried to learn Earths sciences, but this I have learnt.
Maybe lull is consequence of CRB? Heat source for Cascades before 22MA was partialy from YHS, and when CRB start it is just spent on them?
Great talk. Never be afraid to meander and go where your thoughts take you.
Also, isn’t a pluton that doesn’t rise to surface just the definition of intrusive tock?
I would also think that the source material being melted would explain the tecture of the resulting plutons,
eg: lava fields verses river and marsh areas.
Is the 50 degrees of Siletzia rotation a separate rotation event than the modern clockwise rotation starting ~18 Ma with Orofino as the pivot point?
If Siletzia had the 1 degree rotation per Myrs separate from the bigger / modern rotation, could that rotation explain the difference between batholith to the north (Chilliwack) and extrusive to the south (Ohanapecosh) and seeming to lower / drop out in the south? (extension from Siletzia's rotation?)
It's interesting that Chilliwack was going hard in the ~same time frame as the Adakites in OR; and the Chilliwack had the lull about the same time as the end of the Adakites.... and the more recent slab break, etc. occurring ....and heading into the time of the flood basalts. I'm recalling 11 Ma (from a past video) as being another basalt date.... (about the time Chilliwack gets going again). maybe a connection..
💖💞🐸
Ned zinger!! You gotta love it!
The successive rounds of magma rising through plutons reminds of the layers of flashy outfits that quick change artists' shed more than Russion dolls.
Another thought. The Green river cuts into the Spirit Lake pluton. What is on the floor of that 'valley'? It's not showing as Pluton so what is it? Is it the bottom as in what is below the pluton or just river deposits?
Missed the start...sorry....Hello from Half Moon Bay
Worst winter months are ahead here in Finland. Winter is not over yet.
"Chris Has Questions" - Will we see a new podcast from Chris Mattinson?
Nick, I aways assumed that when a magma chamber was created, for whatever reason, that when the magma stabilized and started cooling it would shrink. The shrinkage would then create a caldera. I read that somewhere. Has anyone figured how much a certain mass of magma would shrink from conception to total cooling?🙂🤔🧙♂🐩
@ Nick Zentner
Watching again after the fact. 1:20:23
I thought that I had already learned from this channel, either from yourself or your guests, that some plutons and batholiths did Not make it to the surface other than by erosion.
Funny episode. Going from "The Holy Trinity" the shortly later on learning from Ava that plutons absolutely do form without creating neither a caldera nor any volcanics.
Am I misinterpreting that?
Another interesting letter!
Thank you! W hen Tatoosh range 26-16 million years, the coast was where?
Ayla and Mike are a powerful combination and have a great relationship. It's strictly plutonic.
Asked Alexa if Olympic mountains are still rising and she said they are still uplifting.
Is the question why did the Chilliwack shut down? Maybe the question really is why did the Chilliwack start up again?
The Chilliwack lull seems to coincide with the Yakima Basalts. Is there a relation between these two?
Remembering Basil & Rich G talking about the peraluminous 2 mica S-type granites in Idaho, could that be the source for the muscovite in the Ohanapecosh layers?
I also remembered Mike Eddy talking about peraluminous being associated with near trench magmas, but he didn't mention muscovite. I found (on-line) that Bald Mountain has muscovite, but when I checked for Mt Pilchuck & Tamanowas Rock, it didn't show 'yes' for a result. Bald Mountain (and potentially some other near trench magmas) might be the source for the muscovite in the Ohanapecosh layers(?) ...which also seems more reasonable for traveled distance then my original thought of Idaho.
💖💞
❤❤
If the surface is eroded to the pluton, in Europe the volcanics and the caldera are gone.
The Pluton of Bramsche in Northern Germany is still buried, it is known only by anomaly in temperature and gravity.l
Ayla was saying she has a pluton and "literally across the street" there is a "coeval volcanic sequence". Are the plutons really that close to the surface? I've imagined the much deeper
Why all the lifting? Could it be just isostatic?
If there is a overthickened crust at a place (trough orogenesis (meaning here especially the adding of Siletzia), maybe even through "just" adding plutonic bodies into a crust) it starts to rise like a cork in water. It does that for as long as there is an imbalance, which can be several tens of millions of years. Look at the alps.
Why was there so much more lifting in WA compared to OR? IMO it is because of Siletzia too. It's addition thickened the crust at the seam massively and that means lifting. (And if the borders of the two pieces of crust were not parallel that would increase the thickening and lifting in places.)
Pepperoni on the blackboard. With Parmesan cheese wedges.
Calderas put you at the surface and provide topographic control, information outcrops in plutonic rocks do not.
1277 views on rewatch start.
1:19:00 where I came in the livestream chat.
Did a "Cascade Volcanoes" backpacking tour in WA a decade or so ago and visited Goat Rocks, Spirit Lake, Rainier and all that stuff. This brings back some memories and even better some clearer geological insight. Sadly revisiting these spots is out for at least another four years, thus the visuals were a nice reminder of the beauty of the area.
WILL YOU GIVE ATTENTION TO SILVER STAR?