Boar's Tusk, Wyoming: An Odd Volcano
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- Опубликовано: 25 июл 2024
- Investigate Boar's Tusk, a prominent landmark in western Wyoming and its interesting volcanic rocks and history with geology professor Shawn Willsey. GPS location: 41.96209, -109.19854
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Welcome to Wyoming! I taught high school sciences at Farson Wy from 2010 to 2019. Class trips out to the sand dunes in those years. We never walked to the base as I recall, if was off limits.
During my years at UW, one of my classes was paleomagnetism. I was responsible for placing the core samples drilled into the magnitomoter.
Thanks for giving me a closer look at a formation I lived within eye shot but never touched.
Thank you Shawn, I knew you wouldn't let us down on Thanksgiving morning.
Thanks Dr. Willsey for an excellent video. 👍
Interesting! Would be a good candidate for a follow up episode with the microscope. Thanks for taking us along!
Vielen Dank für das schöne Video.Ich interessiere mich sehr für Geologie, aber bin Laie.
Vielen Dank, das ich soviele Eindrücke bekomme.Viele Grüße und pass auf Dich auf😊
Manchmal ist auch Zement interessant😂😂,bin gespannt was Du weiter berichtest
Another informative geological masterpiece Shawn, I will never look at a rock in the same way
Thanks for this quiet moment before the pie baking begins ; ]
"Fascinated" is right. What an interesting formation, I hope you can provide us with a follow-up as I know you have already dug into this to deepen your understanding. The wind abrasion striations - ventifacts - reminds me of the water induced striations we saw at the rim of Box Canyon in October. The common denominator is sands.
Cool interesting stuff. Thanks Shawn. Happy Turkey day to you and your family.
Yesterday I watched one of your videos from a couple of years ago that really helped me figure out some features in my area that I have been pondering for a while. Thanks!
Thank you for taking time to check this out. Having grown up with this in my backyard I have always wanted to hear a good interpretation of how it got there. Have a great Thanksgiving Shawn!
Thanks once again for a good exploration. Wyoming has several of these types of formations. If you go towards Laramie they tend towards the kimberlite mineral assemblage. Both types can be diamond bearing as the ones to the east are. I would not be surprised if those cores you showed were from mineral prospectors. Did you get any photos of the Killpecker dunes nearby?
No. It was a somewhat hurried trip across this part of the state.
Lived 10 years in SW Wyoming! So many awesome things to see and explore!
You are right about the crazy wind in Wyoming!
Super interesting. So many phenomena in one spot - well, interesting to us armchair followers. 😊
Quite the moonscape, thanks for sharing!
Been here in this area before, simply amazing country... I love e exploring Wyoming, it is full of geology... Black rock a little to the south eastish yeilds peridot, Further west off of I 80 garnets, chromium diopside can be found...
Thanks for another very interesting episode. I would also love to see a follow up episode looking at those rocks more closely
The wild and wonderful winds of Wyoming
What a great video, thank you
Thanks, Shawn. A very interesting monument indeed. Thanks for telling us about it.
Was there a smaller hotspot under that area?
Really fascinating, thanks ! Great work and explanation!
You are so lucky! To have that incredibly beautiful place to yourself! Thanks again for sharing. And thanks for the spellings you type in. Thanks also for your kind note you sent!
Cool to have seen this way back when. Good intell. Thanks
When you got up close was not what I expected. Thanks very much.
Thank you so much for this wonderfully immediate and interesting video XXXX
Great presentation. Thanks.
Climbed this about 10 years ago, it's a fascinating place. Thanks for the awesome video.
great tour !
Nice as always thanks
That was great Shawn, I love Wyoming geology.
Beautiful country. Thanks for this close look at an unusual artifact.
Shawn your videos are awesome. I have learned so much about rocks and the living earth from just watching.
Thanks for another informative video of a fascinating formation. I truly appreciate your efforts (and climbing skills) to provide such detail of places I'll never get to visit in person. I learn so much from each video; today's favorite was "ventifact".
Great episode! Having a drone along for upper observation could be helpful. …and if there were diamonds there, the midnight mining company would have demolished the tusk by now!
Used drone for cover photo.
@@shawnwillsey Do the Wyoming authorities prohibit using the drone within, say 12 feet of the tusk its self to get a read on the minerals?
I've examined that very boulder. Fascinating location.
Loving your channel. Thanks for the Iceland info too.
May be just another hotspot
" pimple" on the edge of the Great Basin and Range?
I took pictures of that last year but had no idea what it was. Thank you for solving it!
Very nice
This was fun! Thanks so much!
it's kind of interesting learning how to understand the things you are looking at...
The colours are amazing. You wouldn't think so many different rocks could b4 ejected
I did a geology picture teacher's road trip website in college at Chadron State. I added the boars tusk to the website. I have a cool picture of the tusk, Kilpatrick dunes, and Wind Rivers in the backyard.
cool video---unique volcanic rock----much different than we're used to
Thanks!
Tusks and Mars. Lunar landscape.
With all the material around it from the base(?) up, it must have been a lot bigger around and taller. Lidar couldn't tell us how deep it extends below the plain.
Thanks for another interesting geologic post.
I think the Leucite Hills have been (tentatively?) interpreted as related to the Rio Grande rift. I saw an abstract for a paper that was relating them to the volcanics in the Yampa River Valley in Colorado. I think there's alot of uncertainty as to how far north the Rio Grande Rift goes.
thank you
Thx Prof. ✌🏻 grt geo-ed adventure .
Thank you. we did learn something which is always good! I would have thought it was a Mountain that is eroding, Now I know1
Great Video. The place does look like it's in the middle of nowhere! I'd like to see a cut and polished slab for a table top!
Mitchell and Bergman's Petrology of Lamproites is a great book.
That looks like Needle Rock in Crawford, CO!
Made the tusk my goal on a trip out west drove down from Atlantic City through the red desert, elk,wild horses , antelope, it’s a special place❤
Thanks Shawn for your extra effort to hike to this location and explain the rocks found there .................. over 1K likes ........
Really interesting stuff Sean! Thanks!
Just an FYI - use a back drop shadow on your light colored text, makes it easier to read against any background.
So interesting to hear a couple million years old called "young". I'm used to the standards of Iceland, where a couple hundred thousand years is considered old ;)
Reminds me of dry cookie dough. Wyomings geology is cool. I read a article about the geology of Hart Mountain outside of Cody. Geology much different from the surrounding rocks. Basically thought to be a huge boulder courteous of a Yellowstone eruption, if I remember correctly. Ancient oceans and massive volcanic action made ole’Wyo amazing.
That orange zenolith was GOLD!!!
I never realized Wyoming had volcanic activitiy. Thank you for the information
I have flown around these features in my plane, there are more and larger features to the east. I’m wondering if they are the same formation and age.
Interesting, other than the Yellowstone hot spot i am not aware of very much volcanism in Wyoming. This is very strange and interesting. Reading more about Rocky mountain geology is on my wish list along with Appalachian geology. There are still very many extremely isolated areas in Wyoming. I have always followed my dad's wilderness rules about driving in Wyoming and parts of Montana. You can quickly be a long way from help and safety.
,,,,,land o' lakes,wi....here for class ==..about the striations on the first Boulder you showed us..my take,,is,,,..are those bubbles in the lava ??,,the wind blown sand will be wavy,,these seem in line for them to be made by gas bubbles rising while molten,,imo!😮,..so cool to see this place,,,stark area,and those outstanding,....pyramid looking,.....I sure would walk to it if in that area,,,tnx..pat&family.
This reminds me of Monument Valley, which is far smaller in reality than in the movies ;-)
They must have taken some turns around and around ;-)
In detail it could be a different geology, but they also must be ex volcanoes. There is nothing else that could make these formations.
The people gave them names like the right and left glove of Manitu I think ;-)
And the tours start from a higher vantage point, almost from the top height of these features. So, this starting plateau must be a different geology than the eroded area.
I am just curious about all of this, I am no expert, but I thank you for your videos!
I think Monument Valley is an eroded mesa and not of volcanic origin.
@@Cwra1smith you can see those "chimneys"...
@@richard--sMaybe you mean these? ruclips.net/video/qLl-epuyl0c/видео.html
@@shawnwillsey I thought, you might already have a video about it ;-)
I will look at it in no time, can't wait!
I don't know if it's just the camera but if you look at the rock, especially the from either kind of far away or that one rock with the wind erosion, and then look at the landscape from far away, it all looks like it has an interesting damascus pattern
Agreed, Shawn- What the heck caused/allowed such a recent volcanic event in that area, the phreatic breccia shoved up through the crust? Almost gently-broken then re-glued?
I wonder if this outcrop is a byproduct of the YHS extreme geothermal residual that worked it's way up the perimeter of the hot spot. Thank you Shawn!
I don't think it is at all related to Yellowstone volcanism.
Part of the basin and range extension story?@@shawnwillsey
How did you get me interested in rock and mountains Shawn? How? At 70, suddenly I wish I'd been a studier of the Earth, like you! It's very cool to see this stuff. You're handsome and the Earth is even more so. 😂❤😂❤😂❤😂❤😂 That's what I call a win win. ❤🎉❤🎉❤🎉
Sandstone and lamproite, now that's an unusual combination!
Curious, what would your analysis be of this tusk had it been formed under water?
There is a famous hypabyssal Olivine Lamprolite deposit in Arkansas. Lamprolite, like Kimberlite, can be diamond bearing, and the one in Arkansas is. It is the only Dig your own diamond state park in the nation. Crater of Diamonds State Park is a fantastic place to visit whether you a dining in the plowed fields for diamonds or just surface scanning while walking.
Looks very similar to the spainish peaks dikes I have in my backyard, possibly could this be connected to the rio grand rift basin, or does wyoming have a seperate fault system other than yellowstone?
Thank you for the video. How do these lamproite lavas compare to the volcano in Africa's Mount Nyiragongo with it's ultra low Silica content and high Alkali metals.
The lava's inclusions and clasts look like they are bits and pieces of everything that came up with it from way down deep.
I'm enjoying your posts on Iceland and Wyoming. And learning a lot. My dad was a petroleum geologist from Wyoming, Are you familiar with the Vedauwoo area in SE Wyo? Our family Homestead is near there, has those wonderful granite outcroppings. One cliffside is about 800 feet in height. If you look on a detailed area map, look for Fortress Rock near the railroad tunnel. The tunnel goes across one corner of the homestead. It would be cool if you talked about these types of stone outcroppings.
Vedauwoo is one of my favorite places. Grew up in Cheyenne and my wife is from Laramie. Many great picnics and scrambling around there.
Hi I am in Oregon now but most of the family is in No Colo. Close enough to the cabin for many family get togethers. My nephew is a 5th generation UW grad. The family goes a long way back@@richardkelso9478
As a compliment, love how boars tusk, puzzled you. Imagine, if you will, it is part of a massive, lahar
Sometime in the past there was more Volcanism in the Rocky Mountain states. There are a handful of Volcanic Buttes near Raton, NM, Old Lava flow and Butte north of the White Sands in NM. A Super Volcano near Santa Fe and more Buttes near Taos NM…I know there is a failed Rift zone in New Mexico. I know Colorado has a Extinct Super Volcano in the San Juan Mountains. Shiprock is a Volcanic Butte as well near the 4 Corners I think.
Looks like a chunk of layered shale at 9:18.
There is a similar one in kayenta, utah . Navajo/Dine' nation. Agathla pick or el capitan. Ciao tour guide😅
Kimberly South Africa was also an ancient volcano area with kimberlite found in the area along with lamproite which was important for delivering diamonds. With this in mind, is it just possible this could be another diamond site?
Shawn, I am curious about the source of volcanic ash deposits in the S.D. badlands.
Nothing odd about a volcano anywhere. There are 3 old ones in the state of Mississippi. 1 directly under Jackson MS, the state capital. There are C02 wells all over town. It’s the source of the cleanest C02 for industrial uses in the world. Another is under Midnight, MS. A little bitty podunk crossroad place out in the Mississippi River delta. The last was found offshore in the oil and gas fields. The rock tailings from a well being drilled identified its presence. In North central MS is s large Bentonite clay deposit which we know is decomposed ash deposits. It’s mined to make oil dry snd other clay products. It’s at Blue Mountain, MS so called as the ground dirt is blue. Also some in West TN. Along with the plutons and diatremes in SE Missouri associated with the Reelfoot Rift and New Madrid seismic zone. So volcanoes can be in odd places from a long time ago when the plates were located elsewhere far away.
Btw I’m a bad typer on the phone. Happy Thanksgiving to all. 11/23/23.
There is a rare geo feature in the Missouri Breaks National Monument in Montana called a Diatrime (sp?) supposedly where diamonds are formed, but not there. Its Massive.
This concretion looks like the mass was being moved through an area (via a lava flow?) and kept picking up more loose rock along the way. I'm not a geologist (very amateur), but have taken in other videos that geologists have made. So, I'm just putting together that which I've seen and learned. The material almost looks like it would totally crumble apart if you started chipped away at an area.
Cool stuff. I have a question, I just read that they are lowering alert level for grindavik and that they are expected to be back for Christmas because the magma has solidified. That doesn't make sense to me, I don't understand how that magma tube can solidify so quickly. Even magma that has erupted is still hot for months. This magma is still fully insulated. I was wondering if you could explain to me exactly how they know the magma has solidified under town? Seems very premature to me
No diopside crystals large enough to distinguish without a loop? Hmmm...although definitely not lamporite or Kimberlite or pyrargyrite (all diamond-bearing ultramafics), it does share some secondary associated minerals like diopside...so, having said that...any idea the source depth of this material? Thanks for your outstanding field observations!
I'm not sure if this is me or the video resolution creating it, but I see some "worm-like" motif in certain of the close-up but also at a different scale when you were at a distance. Is that an artefact of the video or me imagining it? If not that would give an additional fractal aspect to this volcano.
Nice. Just think what it took to get there. Sometimes you drive so far, it seems surreal when you finally get there.
Thanks for all that analysis. Be careful out there, that stuff doesn’t look stable and it looks like you’re all by yourself and not sure if there is phone service out there. Don’t want to get pinned or covered up by sliding or falling debris.
Interesting how there is no plant life except for what looked like a tumbleweed.
I have read that the Rio Grande Rift extends beyond the Mosquito/Sawatch ranges in the central Colorado Rockies and on into Wyoming. It seems a bit far to the west, but a remote possibility? I haven’t had the chance to sleuth my way north to see what I might be able to figure out. ( The rift comes up the West side of the Sangre de Cristos, there was a recent -17? MYA uplift at Poncha Pass near Salida, Colorado, and then follows the Arkansas River valley up to the Leadville, Colorado.) From there? So far, it’s just an interesting rumor…
This kinda reminds me of Huerfano Butte in Colorado in terms of seeming to be weirdly on its own.
As the volcano erupted at its highest what do you think the elevation was ? Or is most of the volcano underground at its present?
Is there a difference between mud stone and silt stone?
Enjoying these teaching, exploring videos.
Technically mudstone contains both silt and clay sized particles so a broader term. Siltstone is mostly silt sized sediment.
Kimble light is deep rock compressed under immense pressures from crotons thick crust underbelly that produce diamond crystals so i would think its quite rare to seen on the surface the volcanic plug that's been left exposed due to weathering of the softer ground around it due to wind erosion it's so interesting to see this in a geological inactive area which just show's you that the earth is so dynamic in its crust altering phases and you can get volcanic activity just about anywhere at any if the conditions are right?
wandering hot spot
Looks like possible remnants of a magma plume that has moved on? Maybe prehistoric Yellowstone cayton plate shifting effects? Keep us posted and Thank you Prof.
(Omaha N.E.)
🌽✨🌽✨🌽
I wonder ? Could the microscopic green be residue of Peridot ?
I think the continental margin went through this area back in the Paleocene!
Is it possible for the hotspot we call Yellowstone triggered activity in Wyoming as it did in Washington and Idaho?
Looking at the volcanic Breccia rock you show, how can you tell the difference between volcanic breccia and Andesite? They look so similar.
Andesite is a volcanic rock with a specific chemical composition. Breccia is a volcanic or sedimentary rock made of angular, gravel-sized particles.
@@shawnwillsey I went to Mount Vesuvius last year and that volcanic breccia looks so similar. I think I need to work on my Igneous Rock Identification outside the big 3. Basalt, Andesite, and Rhyolite.