It's great to be a geologic tourist. This ride is one I do not want to get off of. These conversations on Baja-BC, or Ice age glaciers/floods, or Bretz occur not just as entertainment, but as enticement for those new geology students looking for a direction. Awesome, Nick. Brilliant.
I feel ya there. If he doesn't drop something, it's nothing for me to go pull up some older videos and mash out to them. I think I've been through geology 101 3 times, and 351 twice.🤣🤣
Yes - fondly recalling 2020's backyard learning, the pizza boxes, layered fruit cake, Vinman's! and especially how you took us under your wing, frankly bringing us out of fear by focusing on the beauty of Earth. Blessings to you and yours.
I dont cair where you go so long as you go, and bring me with you . Thank you for all you do ,i am a better informed person because of your worthwhile efforts .
Another mind blowing consciousness expanding geology presentation. How much the earth has changed the last 100ish million years is almost incomprehensible.
Geology plus ocean, what more could you ask for. Thanks Nick. I can't help but add that the whole exotic terrane concept was a real mind expanding experience for me.
It's so good to see you! Rosario Head was my favorite place to show the kids tidepool marine life. You have opened new doors of learning here to expand on favorite A-Z series. It's so exciting: thank you, Nick.
Wonderful video Nick! It was so great to see your cheerful face this morning. I always think Oregon is the coolest place to live, but I have to admit that Washington might have us beat, geologically speaking.💕
Thanks Nick! It was fun and helpful to be able to follow along with you in my own copy of the Roadside Geology Of Washington (2nd Edition)! My Mom and Dad are in nearby Warm Beach Assisted Living and the Deception Pass area is one of their favorite places to go, so I’ve been there a few times with them. Unfortunately they are young earth creationists, so the joy of these discoveries and amazing stories told to us by the rocks is inaccessible to them… 😢
Nick, thanks so much for this. As you spoke, I did think of the various A-Z lectures and it started making sense. Tying together the geology of the PNW is so satisfying to hear. I love these little talks and it just whets my appetite for more!
Wonderful video from another beautiful spot in WA. The WA bucket list is getting very very long. Thank you Nick for keep sharing your knowledge! Very much appreciated. 🙏 Warm greetings from Copenhagen, Denmark. ❤️
ah, that's the only place to go in Washington, but the sharp cheddar cheese (Cougar Gold) is only good from Washington State U. Eastern side is depressing. You can see the mountains, but the sea is on the west side out of reach. Eastern Washington is like a slightly better copy of North Dakota.
Mentally "restoring" the movement along the Straight Creek fault makes immediate sense of the connections between the San Juans and the various inliers along and to the south of I-90 east of Snoqualmie Pass. Another excellent prelude to the Cascade Volcanoes' series.
This makes me wonder of the connections of this chert here and at white pass, the blueschists near Cle Elum, and the Josephine and Ingalls ophiolites. Thanks Nick!
beatifull Spot! Spent the night about 1/2 N of that spot in the little bay on a 40' sailboat a few years ago. Wish I would have know about that spot then.
Geez Nick! What a fantastic place, the scenery, the time of day, the little boat cruising by, good golly man! ... and then the rocks too! What a life we are living, thank you, thank you, thank you for dropping these visual candy nuggets and so much more, on us.
I can spend the rest of my life exploring Washington!! Absolutely gorgeous!!! I’m over in the Paradise Valley, Montana right now missing the PnW. Beautiful here today, smoke cleared. Very good to see this amazing terrain, today. Now I know where I’m headed when I’m back in Washington ❤
I've walked all over this and sailed by many times while in the Coast Guard. New appreciation. Robyn Hull's family place is on the other side of the Colleges property. That far cliff is really cool
Another great video, and in my back yard! The complex geology of this area still blows my mind. Thank you Nick for trying to piece it all together. This place is great for kayaking too!
i’ve been spending some weeks over this summer back where i grew up, in one of the three areas of sweden called Bergslagen. places from where some names of REEs and the concept of ”skarn” originates, etc. you coming back to exotic terranes are even MORE interesting to me personally now, as it is theorized these areas are perhaps also exotic terranes. it really has my mind spinning and im consuming so many papers and articles- im just learning so much! i cant even begin to thank you for, not only igniting a geology fire in so many of us, but for these pedagogic videos and your entertaining musings and personality. im having a blast!!
Well I was waiting a little impatiently to find out where you have been the last while! I was delighted to come home from work today and have something so interesting to sit down and watch! Thank you for introducing us to yet another amazing place. It's one thing to read it and quite another to see it! Much appreciated!
Wonderful video and such a nice day to film, I live just around the corner and like taking walks in Deception Park, Will be salmon fishing tomorrow, Geo l8tr
Great walk and talk, in a great location! Amazing combination of tectonics and glaciation and saltwater weathering. Time has put the hurt On that chert 😂 And, Beautiful view of the kelp forest from above!
That is so cool, I drive by that area all the time and over Deception Pass every Thursday. Absolutely fascinated by this stuff even though I am no expert, student or even part time enthusiast, just a guy who grew up with a science teacher for a dad who always finds this stuff interesting. I'll be dragging my wife out there as soon as I can! Haha
There is a nice outcropping of 100 Mya plus ribbon chert exposed on Conzelman Road north of the parking lot by the Top of Four Vista Points. This is in the Marin Headlands of Golden Gate National Park. The view might be a big distraction on a clear day of the Golden Gate Bridge going across the bay north of San Francisco! Nice to see another fine example of this kind of chert out West near the Pacific Ocean. Thanks Nick for the much cooler visit there.
Nick, wonderful to be able to experience with you and think about the correlation between San Juan Islands (--ribbon chert at Rosario Head) and Rimrock Lake geology with you, and to think that we are diving into the details of what actually happened around here when we accreted Wrangellia, one of the Exotic Terranes about 230million years ago, and to think that the start of Cascades Volcanoes are deeply affected by it..., just amazing! Thank you for this refreshing video, Nick😄💞💗✨
Nick is full of surprises! I did not see this one coming, LOL. Thanks once again for making these connections for us that might otherwise have gone unnoticed. I am intrigued to see where the next AtoZ will take us! Such a beautiful and complicated state that we live in! I saved a quote in my notes from Ralph Haugerud from one of your earlier videos that seems to fit here: “I want to talk about why is there a mountain range there? And so I want to talk about subduction off the coast right now, and the modern magmatic arc and the Yakima Fold Belt. The highest peaks in the Cascades are where parts of the Yakima Fold Belt intersect the arc. There is an uplift from Mt Stuart to Three Fingers to the San Juan Islands that happens to be the crest of the big Nanum Ridge fold. If we could stand up and look at it the east end of Nanum ridge, Jumpoff Ridge, and that high ground goes to Mt Stuart, goes to Three Fingers and White Horse and goes to the San Juan Islands and that uplifting part is clearly post CRB.” That interview sparked MANY new thoughts for me:
I'm heading from Seattle to Sequim for my Mom's 102nd birthday on Firday. I now know I'll return via the Port Townsend to Keystone, then up to Deception Pass and Rosario Head! Cool. Thanks Nick.
One of the things you do brilliantly is to tie everything together and refer to the various series you have done previously. Makes me want to go back and watch them all again. It is your sharing this publically that spurs interest not only among the public but also among geologists. You are a master of synthesis.
I'm currently in Southern Colorado at 7,865 ft. altitude and baking in my house. I wish I could teleport myself there. I'd jump in that cool water and love it. Oh, BTW, great video as always Nick!
Hey Nick! I am a geology student at Western Wa and our classes go out to Rosario Head all the time... like seriously for three different classes we've been there- it's a running joke among students that it feels like every field trip we take is to Rosario Head. We go there for our Geomorphology, Structural geology, and igneous and metamorphic petrology class field trips. Amazing place!
Funny that you mention this as an alternative to Rimrock lake. Last summer we found a spot about midway down Rimrock lake where this kind of rock was showing. It was pretty fun to poke around and see all the interesting things that the wind and water had done to the rock over the years.
As soon as you put the San Juan Islands and Rimrock Lake in the same sentence, my mind raced ahead to just where you took this theory: Baja terrane docks and the Cascades and Blue Mountains push their way through, displacing the west from the east, burying the center, and years of erosion around the mountainous terrain exposes the accretions as bedrock.
As a non-geologist, I support Baja BC. It needs more work, yes, but a lot of it makes more sense than the "current" story. Also, I've been to this spot and it's so pretty, well worth it for others to go there.
Though I had been to Rosario Head several times before I fell even more in love with it when I attended a geology field trip lead by Scott Babcock and Dave Tucker about a decade ago! One of Babcock’s books (either “Hiking Washington’s Geology” or “Hiking Guide to Washington Geology”) has a good chapter describing the geology of Rosario. I keep thinking one of these days I’ll see either Babcock or Tucker in your videos!
Hi Nick, Thanks for the vid. I was re-reading my A_Z Exotic Terrane notes and I was getting the feeling that the Rimrock was between (a) IMS (Quesnellia/ Cache Creek/ Stikinia) and (b) INS (Alexander/ Wrangellia) story and then you pop up with the SJI (and i remember the pizza boxes) and connections to the Alexander Terrane (Turtleback) and Cache Creek (Deadman Bay Terrane) and I am kind of remembering the map of the terrane glimpses and the sweep of them round the Columbia Embayment and south into the Klamaths and Blue Mts. Of course I could have just had too much wine!!
Darn Nick when you come to Islands you should announce that and have a MEETUP at a local restaurant /bar for a beer or three!! Yep, have the book cuz of your share and intro to Darrell!
Ribbon chert--there's a lot of that in San Francisco. But it's deep reddish-brown. It's radiolarian. Pretty hard, and bedded like the chert in this video. It is almost universally angular, so I was surprised to see a small outcrop on Bernal Hill in San Francisco which had what looked like globular or melted-and-resolidified chert. I've only seen that there on that one hill, and it's a tiny outcrop.
Thank you, Nick! Borrowing a quote from our past literature: 1885: Exclude the impossible and what is left, however improbable, must be the truth (The Fate of the Evangeline by A. Conan Doyle)
and here I always thought that the rock was leftover volcano cone because the outer ring is a bit higher than the inner core with exception of Mt Erie, Sugar (Meat) Loaf and those other warts and think that "Smiley's" farm (Foggy Bottom) now some athletic field was actually below sea level which would partially explain the numerous lakes sprinkled about.
13:00 well now the bedrock should be nicely exposed due to the vegetation near rimrock lake being burnt away edit: my question has always been how the ingalls complex relates to this extended lopez-rimrock-easton-klamath-etc subduction complex. It seems like probably the remains of a separate, older subduction complex.
My daughter, marine bio, was just in Friday harbor.. i always try to explain to her about what's under her feet. Hopefully I'm close to the reality one simple fact that took me a while to get into view was that rocks are from lava, or from molten form, and will return to molten. Earth rocks anyways. It's mostly been the scope that has been the factor. All forms originating from the basic elements of hydrogen and helium, then from the stars they formed... Thanks Nick
Thanks for highlighting Rosario Head! FYI, though, Fidalgo Island isn't one of the San Juan Islands, which are generally considered only those islands west of the Rosario Strait.
So much to see there for this middle of the country landlubber. The geology, of course, but I keep thinking “wait, what are those flowers!” And “wait, go lower I want to see the water” and “what about tide pools and are there any living things stuck on the rocks along the shore”… I’ve never been to a rocky coast, haven’t seen any ocean since 2005, and it was a sandy coast. Just so much neat stuff. But 15 minutes from the car? Maybe your car, from mine it’s a 28 hour drive.
Is that boulder at the 17:27 time mark a glacial erratic, or a block pitched up by a tsunami? Fast forward a week to the Bronze Chapter geology camp episode. It IS a glacial erratic, 160 Ma mid-ocean ridge basalt bulldozed into an accretionary prism by ocean plate subduction, smashed onto the continental margin by Siletzia or Wrangelia, buried, metamorphosed into serpentinite, then raised back up into the BC Coast Range , and finally transported from British Columbia via glacial transport to be gently deposited on other exotic terrane rocks when the ice melted.
The Baja B.C. would appear to be the only hypothesis which makes any sense. The San Andreas fault and the more southerly Imperial Fault line complex appear to be a continuation of that lithic conveyor system. Likely fueled by the Earth’s internal liquid rock zone convective currents.
It's great to be a geologic tourist. This ride is one I do not want to get off of. These conversations on Baja-BC, or Ice age glaciers/floods, or Bretz occur not just as entertainment, but as enticement for those new geology students looking for a direction. Awesome, Nick. Brilliant.
Thank goodness a Nick video arose today - I was feeling the need! 😊
you're not the only one. Im watching this before bed!
I feel ya there. If he doesn't drop something, it's nothing for me to go pull up some older videos and mash out to them. I think I've been through geology 101 3 times, and 351 twice.🤣🤣
@@robdiesel2876many of us share your disease!
Yes - fondly recalling 2020's backyard learning, the pizza boxes, layered fruit cake, Vinman's! and especially how you took us under your wing, frankly bringing us out of fear by focusing on the beauty of Earth. Blessings to you and yours.
I dont cair where you go so long as you go, and bring me with you .
Thank you for all you do ,i am a better informed person because of your worthwhile efforts .
Another mind blowing consciousness expanding geology presentation. How much the earth has changed the last 100ish million years is almost incomprehensible.
Geology plus ocean, what more could you ask for. Thanks Nick. I can't help but add that the whole exotic terrane concept was a real mind expanding experience for me.
It's so good to see you! Rosario Head was my favorite place to show the kids tidepool marine life. You have opened new doors of learning here to expand on favorite A-Z series. It's so exciting: thank you, Nick.
Wonderful video Nick! It was so great to see your cheerful face this morning. I always think Oregon is the coolest place to live, but I have to admit that Washington might have us beat, geologically speaking.💕
Thanks for coming to the wetside, Nick! 🙂
Thanks Nick! It was fun and helpful to be able to follow along with you in my own copy of the Roadside Geology Of Washington (2nd Edition)!
My Mom and Dad are in nearby Warm Beach Assisted Living and the Deception Pass area is one of their favorite places to go, so I’ve been there a few times with them. Unfortunately they are young earth creationists, so the joy of these discoveries and amazing stories told to us by the rocks is inaccessible to them… 😢
Thanks Professor! Another great show in my backyard!! Keep them coming!
Fascinating video. Beautiful rock formation.
Thanks Nick!😀🥳yes indeed a very pleasant change from the incessant fires of North Central Wa.
beautiful, you are my vision to the world. appreciate so much
Love your presentations Nick
Nick, thanks so much for this. As you spoke, I did think of the various A-Z lectures and it started making sense. Tying together the geology of the PNW is so satisfying to hear. I love these little talks and it just whets my appetite for more!
Thank you! Great, as always!
Thank you so much for explaining these rocks that I see all the time as I explore around Rosario Beach.
Wonderful video from another beautiful spot in WA. The WA bucket list is getting very very long. Thank you Nick for keep sharing your knowledge! Very much appreciated. 🙏 Warm greetings from Copenhagen, Denmark. ❤️
ah, that's the only place to go in Washington, but the sharp cheddar cheese (Cougar Gold) is only good from Washington State U. Eastern side is depressing. You can see the mountains, but the sea is on the west side out of reach. Eastern Washington is like a slightly better copy of North Dakota.
I bought that book tonight because of you.
Mentally "restoring" the movement along the Straight Creek fault makes immediate sense of the connections between the San Juans and the various inliers along and to the south of I-90 east of Snoqualmie Pass. Another excellent prelude to the Cascade Volcanoes' series.
This makes me wonder of the connections of this chert here and at white pass, the blueschists near Cle Elum, and the Josephine and Ingalls ophiolites. Thanks Nick!
Thanks for the video.
beatifull Spot! Spent the night about 1/2 N of that spot in the little bay on a 40' sailboat a few years ago. Wish I would have know about that spot then.
Was there in 2016. Wish I had seen this then. Would have been more enthralled than I was. Thank you.
Oh, SO exciting! 😎 GO BAJA B.C.! Thanks so much for this beautiful video. What a Find. I've just put this location on my Bucket List.
Geez Nick! What a fantastic place, the scenery, the time of day, the little boat cruising by, good golly man! ... and then the rocks too! What a life we are living, thank you, thank you, thank you for dropping these visual candy nuggets and so much more, on us.
Mad video storytelling skills. So interesting. Thanks!
What a site!
I can spend the rest of my life exploring Washington!! Absolutely gorgeous!!! I’m over in the Paradise Valley, Montana right now missing the PnW. Beautiful here today, smoke cleared. Very good to see this amazing terrain, today. Now I know where I’m headed when I’m back in Washington ❤
Great place to go hiking. Scrambled up those rocks many, many times
Awesome Sir, T Y Sir.Last time I saw ribbon chert was 2008, Cambria Ca.
What a jigsaw, thanks for helping us get a handle on the big picture!
I've walked all over this and sailed by many times while in the Coast Guard. New appreciation. Robyn Hull's family place is on the other side of the Colleges property. That far cliff is really cool
Thanks Nick! Baja BC I love it, my favourite series of yours!
Another great video, and in my back yard! The complex geology of this area still blows my mind. Thank you Nick for trying to piece it all together. This place is great for kayaking too!
i’ve been spending some weeks over this summer back where i grew up, in one of the three areas of sweden called Bergslagen. places from where some names of REEs and the concept of ”skarn” originates, etc.
you coming back to exotic terranes are even MORE interesting to me personally now, as it is theorized these areas are perhaps also exotic terranes. it really has my mind spinning and im consuming so many papers and articles- im just learning so much! i cant even begin to thank you for, not only igniting a geology fire in so many of us, but for these pedagogic videos and your entertaining musings and personality. im having a blast!!
One of our favorite parks. The Roadside Geology book is fantastic. Thanks for sharing, Nick. Cheers from Stanwood! 🍻
gorgeous rock, on a classic Juan de Fuca day.
roll on Baja-BC!
Thanks Prof Zentner!
Reminds me of my fingerprints when I've been in the water too long. What a lovely hike.
I'm a simple man, I see the word "chert," and I watch the video
@Thom4ES arrowheads were the original mission, but I think the anthropology and geology are the real stars of the show these days.
Well I was waiting a little impatiently to find out where you have been the last while! I was delighted to come home from work today and have something so interesting to sit down and watch! Thank you for introducing us to yet another amazing place. It's one thing to read it and quite another to see it! Much appreciated!
Wonderful video and such a nice day to film, I live just around the corner and like taking walks in Deception Park, Will be salmon fishing tomorrow, Geo l8tr
I love how you talk about the parking, restrooms, walking terrain types etc.. my knees aren’t what the used to be so I really appreciate the info!
Great walk and talk, in a great location!
Amazing combination of tectonics and glaciation and saltwater weathering.
Time has put the hurt
On that chert 😂
And,
Beautiful view of the kelp forest from above!
Thank you! I appreciate the fact that you are willing to out on a limb with your ideas.
Hi Nick! Thanks for another fantastic video! I’m always excited to see a notification of a new video from you.
Very beautiful! 😍👍
That was amazing. Ty Prof Z. You look so happy. It's fantastic.
That is so cool, I drive by that area all the time and over Deception Pass every Thursday. Absolutely fascinated by this stuff even though I am no expert, student or even part time enthusiast, just a guy who grew up with a science teacher for a dad who always finds this stuff interesting. I'll be dragging my wife out there as soon as I can! Haha
So beautiful there, I love the rain .. as a good PNWer does 🥰 thanks for reading the book ❤
There is a nice outcropping of 100 Mya plus ribbon chert exposed on Conzelman Road north of the parking lot by the Top
of Four Vista Points. This is in the Marin Headlands of Golden Gate National Park. The view might be a big distraction on a clear day of the Golden Gate Bridge going across the bay north of San Francisco! Nice to see another fine example of this
kind of chert out West near the Pacific Ocean. Thanks Nick for the much cooler visit there.
WOW, this was really interesting!!! Thank you
Nick, wonderful to be able to experience with you and think about the correlation between San Juan Islands (--ribbon chert at Rosario Head) and Rimrock Lake geology with you, and to think that we are diving into the details of what actually happened around here when we accreted Wrangellia, one of the Exotic Terranes about 230million years ago, and to think that the start of Cascades Volcanoes are deeply affected by it..., just amazing! Thank you for this refreshing video, Nick😄💞💗✨
Thank you, Professor Zentner! ⚘
Sure, Nick! We all know that pigs can fly! It´s all about keeping an open mind! Complements to the beautiful scenery!
thanks nick,
Thanks, Nick! This episode reminds me of just how much information we've gone through since 2020! Very enjoyable!
The pied piper of geology! He can’t help but show us the way. Great teacher!! Thanks Nick.
Nick is full of surprises! I did not see this one coming, LOL. Thanks once again for making these connections for us that might otherwise have gone unnoticed. I am intrigued to see where the next AtoZ will take us! Such a beautiful and complicated state that we live in! I saved a quote in my notes from Ralph Haugerud from one of your earlier videos that seems to fit here: “I want to talk about why is there a mountain range there? And so I want to talk about subduction off the coast right now, and the modern magmatic arc and the Yakima Fold Belt. The highest peaks in the Cascades are where parts of the Yakima Fold Belt intersect the arc. There is an uplift from Mt Stuart to Three Fingers to the San Juan Islands that happens to be the crest of the big Nanum Ridge fold. If we could stand up and look at it the east end of Nanum ridge, Jumpoff Ridge, and that high ground goes to Mt Stuart, goes to Three Fingers and White Horse and goes to the San Juan Islands and that uplifting part is clearly post CRB.”
That interview sparked MANY new thoughts for me:
ive always wanted to go here. so cool
Great video
Well done 👏
a short but mind bending session as ever - thanks Nick!
I'm heading from Seattle to Sequim for my Mom's 102nd birthday on Firday. I now know I'll return via the Port Townsend to Keystone, then up to Deception Pass and Rosario Head! Cool. Thanks Nick.
Love the tide pools at Rosario Head! Get a nice view of the chert along with the all the tide pool ecology.
One of the things you do brilliantly is to tie everything together and refer to the various series you have done previously. Makes me want to go back and watch them all again. It is your sharing this publically that spurs interest not only among the public but also among geologists. You are a master of synthesis.
I’m super impressed about how you are putting the subject of the Cascades into a greater geologic timeframe/context!
I'm currently in Southern Colorado at 7,865 ft. altitude and baking in my house. I wish I could teleport myself there. I'd jump in that cool water and love it.
Oh, BTW, great video as always Nick!
Hey Nick! I am a geology student at Western Wa and our classes go out to Rosario Head all the time... like seriously for three different classes we've been there- it's a running joke among students that it feels like every field trip we take is to Rosario Head. We go there for our Geomorphology, Structural geology, and igneous and metamorphic petrology class field trips. Amazing place!
Be safe, Nick!
I love this Nick.
Funny that you mention this as an alternative to Rimrock lake. Last summer we found a spot about midway down Rimrock lake where this kind of rock was showing. It was pretty fun to poke around and see all the interesting things that the wind and water had done to the rock over the years.
As soon as you put the San Juan Islands and Rimrock Lake in the same sentence, my mind raced ahead to just where you took this theory: Baja terrane docks and the Cascades and Blue Mountains push their way through, displacing the west from the east, burying the center, and years of erosion around the mountainous terrain exposes the accretions as bedrock.
ONE must experience the tide change at Defiance Pass OMG thank you
Excellent!
As a non-geologist, I support Baja BC. It needs more work, yes, but a lot of it makes more sense than the "current" story.
Also, I've been to this spot and it's so pretty, well worth it for others to go there.
Oh boy, I'm visiting Fidalgo Ophiolite at Anacortes' Washington Park in the next week or two and will add this stop. Thanks!
It was great! Also wnt up to Washington Park for Fidalgo Ophiolite.
Another good video. Thx Nick.
Ah, the pizza boxes. Now I'm getting hungry, for both pizza and more geology!
Though I had been to Rosario Head several times before I fell even more in love with it when I attended a geology field trip lead by Scott Babcock and Dave Tucker about a decade ago! One of Babcock’s books (either “Hiking Washington’s Geology” or “Hiking Guide to Washington Geology”) has a good chapter describing the geology of Rosario. I keep thinking one of these days I’ll see either Babcock or Tucker in your videos!
Hi Nick,
Thanks for the vid.
I was re-reading my A_Z Exotic Terrane notes and I was getting the feeling that the Rimrock was between
(a) IMS (Quesnellia/ Cache Creek/ Stikinia) and
(b) INS (Alexander/ Wrangellia) story
and then you pop up with the SJI (and i remember the pizza boxes) and connections to the Alexander Terrane (Turtleback) and Cache Creek (Deadman Bay Terrane) and I am kind of remembering the map of the terrane glimpses and the sweep of them round the Columbia Embayment and south into the Klamaths and Blue Mts.
Of course I could have just had too much wine!!
Darn Nick when you come to Islands you should announce that and have a MEETUP at a local restaurant /bar for a beer or three!! Yep, have the book cuz of your share and intro to Darrell!
Ribbon chert--there's a lot of that in San Francisco. But it's deep reddish-brown. It's radiolarian. Pretty hard, and bedded like the chert in this video.
It is almost universally angular, so I was surprised to see a small outcrop on Bernal Hill in San Francisco which had what looked like globular or melted-and-resolidified chert. I've only seen that there on that one hill, and it's a tiny outcrop.
Someday Catalina island will be an exotic terrain
Interesting stuff. Come on November.
Navy Growler making its presence known at 14:30 :)
Thank you, Nick!
Borrowing a quote from our past literature: 1885: Exclude the impossible and what is left, however improbable, must be the truth (The Fate of the Evangeline by A. Conan Doyle)
and here I always thought that the rock was leftover volcano cone because the outer ring is a bit higher than the inner core with exception of Mt Erie, Sugar (Meat) Loaf and those other warts and think that "Smiley's" farm (Foggy Bottom) now some athletic field was actually below sea level which would partially explain the numerous lakes sprinkled about.
Careful Nick - remember what happened the last time you started flirting with the Cretaceous!
13:00 well now the bedrock should be nicely exposed due to the vegetation near rimrock lake being burnt away
edit: my question has always been how the ingalls complex relates to this extended lopez-rimrock-easton-klamath-etc subduction complex. It seems like probably the remains of a separate, older subduction complex.
My daughter, marine bio, was just in Friday harbor.. i always try to explain to her about what's under her feet. Hopefully I'm close to the reality one simple fact that took me a while to get into view was that rocks are from lava, or from molten form, and will return to molten. Earth rocks anyways. It's mostly been the scope that has been the factor. All forms originating from the basic elements of hydrogen and helium, then from the stars they formed... Thanks Nick
Thanks for highlighting Rosario Head! FYI, though, Fidalgo Island isn't one of the San Juan Islands, which are generally considered only those islands west of the Rosario Strait.
So much to see there for this middle of the country landlubber. The geology, of course, but I keep thinking “wait, what are those flowers!” And “wait, go lower I want to see the water” and “what about tide pools and are there any living things stuck on the rocks along the shore”… I’ve never been to a rocky coast, haven’t seen any ocean since 2005, and it was a sandy coast. Just so much neat stuff. But 15 minutes from the car? Maybe your car, from mine it’s a 28 hour drive.
Ah thanks I've seen that but didn't know what it was
the Baja BC tease 🤤
Is that boulder at the 17:27 time mark a glacial erratic, or a block pitched up by a tsunami?
Fast forward a week to the Bronze Chapter geology camp episode. It IS a glacial erratic, 160 Ma mid-ocean ridge basalt bulldozed into an accretionary prism by ocean plate subduction, smashed onto the continental margin by Siletzia or Wrangelia, buried, metamorphosed into serpentinite, then raised back up into the BC Coast Range , and finally transported from British Columbia via glacial transport to be gently deposited on other exotic terrane rocks when the ice melted.
❤
😎
For the record it almost never rains on the San Juan Islands in late July - it only looks like Nick was filming in November 🤣
Yep bit toasty up in the cascade area where it rim rock lake is right now
The Baja B.C. would appear to be the only hypothesis which makes any sense. The San Andreas fault and the more southerly Imperial Fault line complex appear to be a continuation of that lithic conveyor system. Likely fueled by the Earth’s internal liquid rock zone convective currents.