Napeequa Schist and Entiat Pluton
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- Опубликовано: 8 сен 2022
- CWU's Nick Zentner continues his outcrop explorations near Entiat, Washington.
Napeequa Complex outcrop: goo.gl/maps/EH9aomqfT6VsUqfK7
Entiat Pluton outcrop: goo.gl/maps/KBFup45RJHMK74MX6
Chelan Migmatite outcrop: goo.gl/maps/N4GyXNt3riAE6w7L6
Nick, thanks for the outing. Every rock tells a story and as you turn the pages I appricate your lack of certainty. Understanding evolves, it takes generations of asking why to get where we are today. That understanding is under constant assault by those who continue their search for answers. You live in such a complex region, it's a bit numbing to follow but your slow ways and careful phrasing give the novice a reason to continue these journies with you. I love you and safe traveles home.
Appreciate the lesson on-site Professor!!
Very fortunate to have you doing these videos!!
Thanks again!!
Re: that young population of zircons. The rock containing them is described as migmatitic, meaning melt was formed-meaning those 76 Ma zircons were formed in that migmatitic melt, they aren’t original zircons. Migmatite just indicates high levels of crustal thickening and or nearby high heat flow from plutons, associated with the Cordilleran orogenic events.
But Nick, I thought you had rock hammers strategically hidden in crevices all over Washington state!
Thanks for another interesting video.
Not ones he can reach! :)
Let's appreciate the road builders who scratched that dirt trail out of the side of the mountain! I'm talking about the last third of the video; the approach to Chelan. 5 boxes of demolition explosives and a D-9 Caterpillar.
That would be my pops he worked on Road construction during the 50’s & 60’s heyday of road building all the Washington state Highways & the Freeways. Including access roads to many Dams built in that era. He worked on jobs all week & came home weekends. In the summers my mom & I would go & live in motels where he was working.
@@faithijn8338 My great great grandfather helped build the original Navarre coulee road around 1900
All I see is the environmental degradation unfortunately. Every road has huge consequences for the surrounding biome. Wish more people were aware of that.
The quartzite is so clearly defined it's quite incredible.
Thank you professor Nick, I always learn something new about the state I live in. You keep me on my toes. Can’t wait for the school year to start. Never thought I would be excited to learn. Again a Big Thank you for taking us along on your exploration of our beautiful state.
I have been looking forward to your field trips into Entiat and Lake Chelan country. You surprised me with the road you took ending up in Navarre Coulee. Did not know about that one! The way I have traveled up and over to Lake Chelan was to go farther up the Entiat to Shady Pass, and then you come out farther up lake at 25 Mile Creek. There is a LOT of diversity in the rocks around Lake Chelan. The uniform patina of gray lichen gives way to some surprises. As you climb out of Navarre Coulee and crest the hill just before you can see Lake Chelan, there is a place where they blasted, and the rocks there are something unidentified by me despite my research in the geology books and maps - almost chalky. I formerly owned 40 acres along the South Shore just past Slide ridge, and we had rock formations there that were a pinky tan color, fine grained, and definitely different than the surrounding rock. I did not have the skills to identify these, but have always wondered..... We had to blast some of these as we were developing our orchard, and so I still have access to an "erratic" from this rock formation here in my mom's yard in Malaga.
Friday is starting G R E A T.
Thanks for taking the time to share your adventures with us. We're learning a lot.
Thank you again Mr Zentner for taking time out of your busy schedule to make these vidoes for us, it is very much appreciated.
I used to have a 2021 Ford Escape and have taken it out onto some jeep trails in the Hauser Geode Beds and surrounding areas in southern California, it does quite well off road which was a surprise to me.
Thank you Prof. N.
Tantalising and interesting, as always. Your efforts [mental and physical] are greatly appreciated, and through them my meager knowledge of what is surrounding me has grown.
Looking forward eagerly to your next lecture room sessions.
Yakima was in the news recently - am I right in thinking that I'm the only person in Melbourne that knows, not only where that is, but has, through your videos, walked around there??
You aren't the only one. But ....I shut my eyes on roads with steep dropoffs that have NO guardrails!!! Dayum, I guess people up north simply dngaf?!? Be oh so careful, Professor Zentner! And thank you for all you post🌹
How nice, my team wins the football and a Nick video pops up on my feed!
Those Quartzite swirlies look like exotic terrane.
Howdy! Missed these, have been otherwise occupied. Glad I saw this come up. Peace and Good Fortune and Good Health to you and your family.
Washington state has some impressively great geological features. These are a few of them and so under rated.
Such a great walk through time with you professor.
A Geologist without a rock hammer is like a Physician without a stethoscope !:-)
💜🙏⚡️
Howdy from Payson Arizona. Born and raised in Eastern Washington.
Gneiss. I was always told if I didn't have anything "gneiss" to say, don't say it. So there you go, done. Another gneiss video Nick.
Professor Nick you missed the chance to take us on a short Noraly ride in the deep sand lol. Loved the dusty car, that is the look of adventure! I know you were short on time but that would have been GREAT. Thanks for another amazing video, I'm looking forward to a few more before you go back to the classroom. We'll I'm off to watch Noraly's latest video. Wouldn't it be great if she had the time to talk more geology! 🤩
My thoughts exactly. I love Itchy! But my wish is for a little more geology. Just my wish. Ah well. She's spread pretty thin as it is with trying to provide content that appeals to a broad audience.
Some lovely rocks to be found in a very complex area. Someone has done a lot of footwork to discover the extent of the various outcrops.
Always enjoy your geological adventures and the accompanying scenery. Your program guests are an added treat that display wisdom and knowledge of the regional geology and show their love for their profession with enthusiasm. I live at the foot of the Appalachians in Burke County, NC and see some things that are similar here. I wish we had more geologists in our state that have the passion you display. Most of the available USGS publications are becoming historic documents and it seems that efforts to revisit the those publications and add needed updates which could be possible with current technologies that did not exist in the late 1800's and early 1900's. Recently I sent a photo of a shell fossil shell that was found by a friend that worked at a local quarry (granitic gneiss), which would seem to be an infrequent thing and asked about a possible age for the rock/fossil. No response. Any way, thanks for you time and excellent learning videos. Though I am 75 years old now, geology still continues to be a major interest and I still have the ability to learn and expand my knowledge base. Thanks again and loot forward to your future presentations. Take care, be safe, and keep your quest for understanding the rocks. (PS: I recently saw a presentation that stated the older mountains that were east of pre-present day mountain range found their way, during erosion, all the way to Arizona. Any signs of Appalachian materials in your area?)
my grandma lived here. im here to pay tribute......
Ty Nick, Super Awesome as usual.
Thank you. I doubt I will ever get out to that part of the world.
Fanaritic Biotite, and a couple other descriptions I never get to discuss with others, but are the essence of some very fun learning. Nice rugged trip. Thank you for the insights. Thankyou to Liz and the cat for supporting these adventures.
I thought everyone kept an extra rock hammer under the car seat?..
Thank you. I look forward to seeing how you stitch together the evidence for Baja BC (BBC?).
Thanks Nick ❣️
Wow. The rocks are very pretty and swirly. Thanks for taking us along on this adventure. The heights grip my stomach over the video. Again thanks.
Thank You for teaching me about the geology of the pacific north west. 🙂
You said it perfectly a few times when you said the Entiat River or Entiat pluton. N-tea- aught.
Always great to see a new video posting. En-tee-at. Always keep learning from your videos.🍩🍩☕️☕️
Those are crazy forest service roads, you are lucky to not have gotten stuck in the baby powder dust.
Thought that might have been a sedimentary outcrop at first, it really looked like limestone with chert banding. I got a little excited. The central u.s. needs a nick zentner level youtube professor.
As does TransPecos Texas/NM
@@JimArnoldPhoto Texas is interesting, I agree.
Those are some really big horneblende crystals in those rocks! Am I the only one who is bothered by the one map with the invading plutons where they show amphibolite as a light color and marble as dark? Love the maps, though. They really help when we look at the actual terrain so we can see the terranes! Sad you forgot your hammer, but still found plenty of hand samples without it. Thanks, Nick for another great geohike!
Some very cool rocks. I have always loved rocks. I would collect the “pretty” gravel from our driveway as a little kid. Drove my parents crazy.
Always good to hear more geology. Thank you for sharing love. Love is the answer most definitely.
Nice ! I grew up in Yakima Valley to Lake Chelan to Grand Coulee ,my hubby and I are watching and I told him I have seen this ..Thank you !
Top of the morning, Nick!
Ah, memories of riding those roads on dual sports ... ignorant but appreciative of the interesting rock structures! I sure hope to one day have some confidence about what I see. Love your teaching. Thanks, Nick!
Never thought of plutons as lava lamps, but that's the first thing I though of when I saw the illustration at 16:00.
So much fun, thanks!!!
I've been hoping for some time for an Entiat visit. Though I had hoped you would revisit the fault. I camped there a few times before the fires, many moons ago, gorgeous area. To My knowledge the first "t" is silent in entiat. We always pronounced it "eenyat" Cheers Nick, Always good to see another video sir, Thank you.
Thank you Professor Zenter.
Another wonderful tour. Thank you. (Sometimes, I worry we will, one day, lose you in "them, there hills"!) Forgetting, important things like your hammer will become the norm, don't panic. Part of the fun of growing older(?)
Another good video,thanks for the road trip..from under the cow 🥧 on the edge! looking forward to this spring
Seen that same Schist off of South Skagit Highway near Concrete. Almost looks metallic with it's sheen. O'Toole Creek. It's all along the creek walls as you go upstream to Marietta Falls.
I used to know people that lived there... they called it any at. Great show ...as usual.
Thanks, Nick.
I am looking forward to the fall talks.
It's hard to picture how this stuff is all put together just talking about it, but when you show a pic like the one with the "hearts, and kidneys, and other organs" at 14:55, it sure helps to visualize it better.
My aunt/uncle/cousins lived in Wenatchee for decades and they pronounced it "In-Tee=At.
My family says “N T At”. This is how we say it when we send Bobby to go fishing on the Entiat River.
It's "Entiat" with a short 'A'. (Like splat, blast, and fast.) I live up-river. Was hoping you'd discuss the ancient, terminal end of the Entiat Glacier at mm 15 and also explore Mad River Road, Next time! Good to learn more about Mud Crk which is just a couple miles below me. So thank you! And the shout-out to Noraly was great! (I do wish she'd spend a little more time discussing geology in her travels, but we can't always get what we want.)
So complex and intriguing
When I'm out in the field I feel naked without my rock hammer !
Used to be Hwy 97 through there until they moved it across the river in the 70s. Is there a bike or hiker lane in the tunnel to the north, take a peek at some deep rock. ANY AT or INNY AT. Pateros is Paw Tear Us. My grandpa told the story of the old road to Lake Chopaka in the Okanogan, it went across a steep shale slide and as the 4x4 jeep crossed it the shale shifted down a bit with the weight of the jeep, scary stuff.
N-T-Ought! Entiat. 😀Nick you don’t keep a rock hammer in your vehicle?!? Bet you do now…😄
You can't 'Haya!' without your rock hammer!
GOOD MORNING! LOVE LEARNING! Easier to use a rock as a hammer than a hammer as a rock! Shist I forgot me hammer. OK I'll stfu
Gneiss one....
There is an area across the River that has the same white veins of quartz mile 175 to 178 popped up at a 45* angle
When rock climbing, a helmet is necessary in part to protect from falling rock. Just a word to those who stand below high outcroppings.
En-tee-at. The ‘t’ often ends up silent when spoken.
My guess is out in the ocean for the Napeequa because of the pillow lava on St Marys.
You better make sure there are no unguarded valuables in your pockets, before you approach 'Seven Fingered Jack'!
Some of this rock would look great polished as a counter top. So these metamorphic rocks were in the lower crust as a plastic pressurized material and acted upon by magma and pressure from the subduction which mixed it like cake batter? Faults injected other materials from the magma? Theory what do you think? This is some of the most interesting rocks I have ever seen (video). Thanks
The metamorphism seems very non-melange like. My first impression is that it's some sort of trench deposit that metamorphoses relativerly well bedded sediments. But it doesn't get scraped by and sliced and dices by subductiing at a bouyant continental edge and waves of accretional wedges.. Instead it gets sandwiched between a couple of ribbons as subduction jumps outboard. Then later it's lifted up with whole superterrane.
"Ent" as in the tree people in LOTR, hard "E", "at", as in you were at Entiat. Enjoyed this video as always. We live in Malaga right near Lake Cortez which is smack on top of the massive landslide. When I look up at Jumpoff ridge from here, I see a large, weird white erosion coming off the cliff where it has no business being because the geology (should be) entirely flood basalt. I've looked at that since I was a kid and wondered what it was. Any ideas? It looks sandy on Google earth. Deposited from one of the floods? It's so weirdly concentrated though. And white.
Silicone
@@kingboagart899 For real?
Sorry No "e". Silicon
Well break out the Hippie Tie-dyed shirts and the peace symbol jeans! 😂😂😂👍😎✌️
I have to take this in segments 'cause my poor brain gets overloaded. But it's so interesting, Nick. I learn so much. Thanks. How much movement in these segments is due to Baja BC fault action, how much is due to the breakup of Pangea? I mean, it looks like everything is moving so how do you separate them? When you did the Exotic Terrane A-Z, you isolated each deposit yet talked about which segment moved on to NA vs NA running them over. Will you cover similar conversations during Baja BC?
When we look at that wall we can see the upward angle to the layers. Is it possible for that to still be lifting?
Nick, I think you owe it to yourself and science to go look at those basalt outliers to see what form they take. What kind of elevation are they? Also surprising to me is the Qcl(?) in the same locale. Around here in the Salinian Block the newest formation is the Purisima and it lies dozen miles from the coast and1K' in elevation and is some 1.8Ma yo. So everything there was above sea level shortly after then. The youngest emergent coastal terrace is 150Ka. Amazing stuff!
Hey Nick and everyone and looking forward to the reading too; aphibolite, quartzite, mid ocean basalt metamorphosed such a nice mixture Nepqua schist, bedding foliation and no hammer; etc.
Nick! At the beginning of your video, You Are Too Close To The Power Lines that are hanging right next to the outcropping at the side of the road! They are hanging right beside you! Please be careful out there! 😮
I ran that road in the 70s in a Dodge Dart.
27:22 Liz: "Explain yourself. I know that's no ash deposit..."
❤
Quark wrote: Entiat seems to bear the brunt of a lot of abuse. I've heard locals pronounce it as "ENnee-at," ("a" as in "at"), so that's how I pronounce it.
@5:10 Classic hanging wall.
Just wondering if anyone can point me to the papers or sites where the maps he used are - particularly the one that was colored in. Thanks lots! :)
Love your videos! Nick if you ever need i have a house in East wenatchee that is open for you to stay at !
37:33 Mesa, Dick Mesa...I'm a private investigator, ma'am...
(sorrrrry, had to...likingandcommenting to appease the algo-deities of the tube of you)
Dusty Boots can be your call sign
Entiat. Third pronunciation got it right. Ardenvoir. Arden vor
Important note: Always carry a spare rock hammer. 😀
The third pronounciation of Entiat is the way. My great-great Grandfather was one of the guys who bought it from the indians. He also helped build the original Navarre coulee road
Why is there so much sand that high up?
I think you avoid emphasizing any syllable and soften the 't'.
I like the longer loop around to the lake, up 971 to the Lake Chelan State Park and then back along the lake . . .
Could those CRB fragments be ice age related?
Nick: can you start an ASMR channel of you just reading geology articles? Asking for a friend...
A guy named Bob told me "Entiat" is now pronounced "Dinkleman".
Hi NIck Vincent from NSW Australia. A field Geologist without his geological pick. Now that's sad.
NO PICK NICK!? Have Bijou bring it to you! Otherwise you’ll go hungry!!!
Dinkelman! Please come forward and introduce yourself! If it's really your 'fault', we want to know who we're dealing with here!
Salmon stone.
Can you put words such as antiqua, amphilibite, micasus, shist...on-screen in big block letters so we can get a better grip on how to spell and pronounce 'em? Thanks, Mate! (D.Carder from Indiana which has dull geology).
Nick reading scientific outline: ...gneiss bodies...”
6th MichCav: Giggles like 8th grader
Forgot your rock hammer? I thought geologists slept with their rock hammer. 😉
Careful(?)
EN EEE ATTT 😊
In-ee-at