6 Mysteries Geologists Can't Solve

To discover more about Nature’s Fynd, visit naturesfynd.com. To learn about their remarkable nutritional fungi protein and fermentation process, visit • What is Nature’s Fynd ... .
There are some geological areas on the planet that scientists still don't understand. For most things it's pretty clear-combine a volcanic eruption a dash of erosion, and boom, you’ve got a striking cliff! But not all the features on this planet are so easy to figure out. Join Hank for a fascinating video about 6 geological mysteries we have yet to solve!
Hosted by: Hank Green
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Sources:
Siberian Craters
www.mdpi.com/2076-3263/11/1/2...
doi.org/10.3390/geosciences10...
doi.org/10.3390/geosciences11...
doi.org/10.1038/s41598-018-31...
doi.org/10.1038/nature.2014.1...
www.energy.gov/fe/science-inn...
ui.adsabs.harvard.edu/abs/201...
Nastapoka Arc
craterexplorer.ca/hudson-bay-arc/
adsabs.harvard.edu/pdf/1973Met...
doi.org/10.1029/91TC00643
gac.ca/wp-content/uploads/201...
eos.org/science-updates/seism...
Indian Ocean Gravity Anomaly
doi.org/10.1002/2017GL075392
doi.org/10.1016/0031-9201(87)...
doi.org/10.1002/2015GL066237
science.sciencemag.org/conten...
www.nature.com/articles/ngeo855
Anjouan’s Impossible Rocks
blogs.ei.columbia.edu/2019/02...
doi.org/10.1007/BF02596993
doi.org/10.3161/150811010X504635
Mima Mounds
doi.org/10.1016/j.geomorph.20...
doi.org/10.1130/0091-7613(199...
doi.org/10.1016/j.yqres.2009....
doi.org/10.1038/nature20801
www.jstor.org/stable/30068438
Gulf of Guinea Microseism
pubs.geoscienceworld.org/ssa/...
doi.org/10.1029/2006GL027010
pubs.geoscienceworld.org/ssa/...
doi.org/10.1093/gji/ggt076
doi.org/10.1093/gji/ggx401
doi.org/10.1016/j.tecto.2009....
doi.org/10.3389/feart.2020.00114
Images:
www.nature.com/articles/s4159...
www.eurekalert.org/multimedia...
commons.wikimedia.org/wiki/Fi...
www.nature.com/articles/s4159...
www.eurekalert.org/multimedia...
commons.wikimedia.org/wiki/Fi...
commons.wikimedia.org/wiki/Fi...
commons.wikimedia.org/wiki/Fi...
commons.wikimedia.org/wiki/Fi...
commons.wikimedia.org/wiki/Fi...
svs.gsfc.nasa.gov/11234
commons.wikimedia.org/wiki/Fi...
commons.wikimedia.org/wiki/Fi...
commons.wikimedia.org/wiki/Fi...
commons.wikimedia.org/wiki/Fi...
commons.wikimedia.org/wiki/Fi...
commons.wikimedia.org/wiki/Fi...
commons.wikimedia.org/wiki/Fi...
en.wikipedia.org/wiki/File:Mi...

[@SciShow]

To discover more about Nature’s Fynd, visit naturesfynd.com. To learn about their remarkable nutritional fungi protein and fermentation process, visit kzbin.info/www/bejne/qaDHgIGijLece5I.

[@nathanielbarraza760]

Please look into Mudfossils university here on KZbin. I work with a plethora of different chemicals for work in a machine shop and must know which can’t be mixed or in series. Geology is biology. Leviathans are real. Oil is blood water is digestion waste and those sinkholes/mudpots with rotten eggs smell is solid waste. Digestive enzymes(or mucus) and bacteria are found in all and they fix the matter to be better at chemically settling. Thanks for your time.

[@craigdaubbeats-rapinstrume9185]

Fun fact. The genetic composition of mushrooms is more similar to humans than plants.

[@terrykesteloot9176]

Grrrrrrr. The Crater Theory, due to climate changed was debunked the same day it was discovered. these are called Thermokarst's and they show up in permafrost everywhere. No explosions, no Methane just plain old frost heave and subsidence over a period of time with the the spring thaw and winter freeze. In warmer climates we call them pot holes. A large portion of Canada's northern lakes are in-fact Thermokarst's that have flooded.

[@hansolowe19]

This was a cool video!

[@CharlesBosse]

@@terrykesteloot9176 that seems reasonable but what about the observed flames? Also, I wonder if this, or maybe plates rotating against each other, is what caused the nice clean circle in Hudson Bay

[@applerapple3446]

It’s always “except Antarctica” but never “only Antarctica” 😔

[@Qo0_0]

F

[@TTTiefling69]

Everyone alwyas asks Why is Antarctica and never "How is Antarctica?"

[@Nilsy1975]

Only Antarctica has no trees.

[@BeerPatio]

It’s the world Lupis

[@ezion67]

Arctic penguins?

[@Lolibeth]

Hank losing his mind over the mima mound gopher hypothesis has made my day

[@jenniferbates2811]

I know! Me too! Like he's been up all night thinking about it

[@bluemooninthedaylight8073]

Perplexed Hank is best Hank.

[@jenniferbates2811]

@@bluemooninthedaylight8073 it is! When I was younger I couldn't verbalize feeling perplexed, so I came up with the word " kerfluffed".🤦‍♀️😏

[@iviewthetube]

Good thought, rodents need a vantage point to watch out for predators. Nick Zentner, who lives in that area has a lot to say about Mima Mounds. kzbin.info/www/bejne/bV6TlWB9pJmcidk

[@ninjachicken8939]

*Continues watching in excited anticipation*

[@fratercontenduntocculta8161]

I love how accessible the content of this show is. It pairs difficult concepts with a simple explanation.

[@ValeriePallaoro]

Occam's razor?

[@OddNumber1524]

As my geology professor once said: "Geologists don't know much and what we know is pretty hazy."

[@Parents_of_Twins]

Now that's some brutal honesty for you.

[@glasshalffull8625]

My engineering professors would say, “we know how just about everything works, until a better explanation is discovered and then we accept that one.”

[@Parents_of_Twins]

@@glasshalffull8625 I prefer the brutal honesty of the Geologists. Nothing wrong with simply saying "I don't know" or I'm not certain but I believe it is like this". I'm a chemist and we are taught that there's always an exception to the rule.

[@garymingy8671]

My asto teacher...the closer to being a fundamental rule of phisics the closer you are to fundamental ly knowing nothing . ( See neutrinos et.al. )...God's have all ways been tricky...

[@shannonrhoads7099]

Also relevant to meteorology. With less meteors.

[@johnopalko5223]

The 26-second microseism. Cthulhu's heartbeat?

[@Lily2U1515]

That's going to be in my head forever.

[@impendio]

thought the same

[@johnopalko5223]

@@Lily2U1515 Or, at least, in your dreams. W'gah nagl fhtagn!

[@brandyeverett7778]

Why... why would you do this?

[@johnopalko5223]

@@brandyeverett7778 Because I adore Lovecraft and I'm an inveterate smartass?

[@summeryoung1026]

"They don't exactly want to go out and poke it, Because what if *you* are the next crater?"

[@donkeyhobo34]

I love you

[@buriedintulips]

Sounds like a job for a rover.

[@scous871]

I've said this exact thing to my therapist

[@Sitwayen]

what about using robots?

[@eustache_dauger]

Should just shoot it with 20mm incendiary round

[@amrys_argent]

I know he was talking about geologists, but "Earth scientists" made me imagine a conference of scientists from various planets.

[@peehandshihtzu]

I live in the Mima mounds area and thank you for pronouncing Mima correctly. The coolest part about them is not the mounds themselves but all the crazy species of moss and lichen. There are also some pretty large owls out here that few have witnessed. I personally have found an owl pellet (the bits of fur and bone from and owls gizzard) with an un-crushed ravens skull in it, that's one big owl. To put that in perspective great horned owls in the bird sanctuary about 25 miles away produce pellets with an average size of a flattened golf ball, the one containing the ravens skull was the size of a soda can. Another thing about the mounds themselves is that if you bulldoze one flat, add topsoil and plant grass there will be a clear 'ring' that burns through where it once was. :)

[@ComfortRoller]

Hi neighbor!

[@peehandshihtzu]

@@ComfortRoller Ha! Hello neighbor! Good to see you here! :)

[@kimmills3264]

WOW, thank you very much for sharing that story. Owls are a humbling creature at any size, but THAT big of one is rather terrifying and also makes this heart happy because I love hearing reasons to believe in legends. Things only witnessed by persons who must bear the burden of being disbelieved... when they have the MOST interesting stuff to say! Although there will always light be fakes and mistakes there are abundant examples in this world of things stranger, more wonderful and far more frightening than fiction 😬🫣😅) I hope I dream of a gigantic Owl tonight.✨🦉🪶 ( Or better yet, dream of BEING the owl)❤✨

[@peehandshihtzu]

@@kimmills3264 Dream the dream. :)

[@RubyTGray]

Hello neighbor!

[@FNLNFNLN]

When is scishow going to start using chapter markers?

[@riaranta3150]

☝🏻thank you

[@JosephFuller]

When someone pays them to do so.

[@miguelupload555]

Aren't y'all gonna watch the whole thing anyway?

[@tylerpeterson4726]

@@miguelupload555 I might want to show someone else just one segment they would be most interested in.

[@FNLNFNLN]

@@miguelupload555 Sometimes you weren't quite paying attention and want to rewatch a segment, and it'd be nice to not have to scrub through finding where you left off.

[@rodbambauer3041]

Shortly after visiting the Mima Mounds, I was operating a heavy piece of machinery with a thick steel plate drilling deck. This deck was covered with a about an half inch layer of dust. When the down hole bit contacted an irregularity, there was about 3 or 4 very strong vibrations in less than 2 seconds. These vibrations piled up the dust in neat little mounds that had the same pattern as the ones I saw. Earthquake?

[@johngalt97]

Some researcher figured this out decades ago after seeing sawdust mound up around a jigsaw.

[@haroldwilkes6608]

I've seen that too...trembling seems to affect the areas of least resistance that way and if the waves come from all around, little mounds appear.

[@toomanyopinions8353]

Exactly. Washington state is ripe with volcanic activity. Now I just want to know if the other places that have these mounds are also volcanic?

[@MsSwitchblade13]

That's a really neat observation and comparison. I was actually picturing it as you were explaining it and it made sense in my head. Thanks Sir Bambeur for teaching me one more thing today even if it's was just about dust and it's formation under vibrations. :)

[@craigparse1439]

Firstly, I'm not a geologist. I live close to the Mima mounds area and I know that that area of the state has lots of glacial drift from the forward edge of ice age glacial sheets. We are also not a stranger to earthquakes. The working theories of fluid dynamics or tectonic activity seem likely. We also have LOTS of gophers although the one that was pictured is a protected species at this time.

[@Mostly_Harmless99]

Suggestion for another episode on geology weirdness: 1) There is the Baja-BC controversy which posits that much of Western WA and Vancouver Island started out 200Mya in Baja California and through the miracle of plate tectonics and rifting of Rodinia that shuffled the current continents’ locations. 2) The ‘slow slip’ phenomena around the Cascadia Subduction Zone in which most of Oregon, Washington and N Cal is rotating around Pendleton OR at 4mm/year, except every 15 months when it reverses.

[@thestic6349]

Huh. So there's actually something interesting about Pendleton. Wild. (I kid, my town in the Willamette Valley's biggest claim to fame is being next door to a city people actually care about.)

[@victoriaeads6126]

Dude, the Cascadia geology is amazing...and kind of terrifying for fragile surface dwellers like me to contemplate. 😬😜 I hope they do a video about both of your proposed topics. Geology is so much more than just pretty rock formations, although I do like a pretty rock formation!

[@angelop7459]

I have recently just finished taking a geography course at my university and the mima mounds (5) are similar to the patterns we studied. Patterns like COULD be caused by freezing and thawing events, as when freezing happens it expands the material and then settles when it thaws. Moving the material, not sure why the patterns occur but it could provide an explanation other than burrowing animals.

[@angelop7459]

If anyone is curious , you could search more about "ice wedged polygons". That's my guess but I'm no expert

[@duskomorientes5088]

Number 7, the small hill of dirty clothes I don't feel like washing

[@ketsuekikumori9145]

I think Scishow Psych might have an explanation for that one.

[@glenngriffon8032]

The hills are alive with the sounds of explosives.

[@geraldbal7945]

America : _thats oil! yolo_

[@littlecuttlefish741]

Or gophers!

[@robertboykin1828]

That one jiggeled my belly.

[@mosquitobight]

I've been to Krakatoa I've climbed up Mauna Loa But nothing compares to these methane-filled exploding hills

[@meanjeanmcqueen6171]

I'm kind of surprised that they didn't talk about the moving mud puddle in California. For me, that was a big, scary, and cool geological mystery to find out about!

[@billallen275]

I love anomalies! Those are the signals that tell us it's time to revise our model or think in a different way. I think they're also an indication for science becoming stuck. Great episode. Thanks 😊

[@Inannawhimsey]

may we never run out of delightful and delicious mysteries

[@Usrthsbcufeh]

0:00 - start 0:56 - Siberian Craters 3:11 - Nastapoka Arc 5:09 - Indian Ocean Gravity Anomaly 7:04 - Anjouan’s Impossible Rocks 8:42 - Mima Mounds 10:34 - Gulf Of Guinea Microseism

[@tracker1673]

I used to wonder about the Mima Mounds in Eastern Oregon where I grew up. That was until I got my first real dirt bike at age 14. It was a Hodaka ace 100 B+ and after that they were just jumps, endless jumps that put an eternal smile on my face. I'm smiling just thinking about it!

[@chetanpuntambekar1808]

As a geology student this video has killed off all the sleep I was going to get

[@lordodysseus]

When I was a little kid, like, 5 or 6, I thought that semi-circle in Hudson's Bay was left by the asteroid that killed the dinosaurs. Fast-forward to when I was 12 or 13, and I'm learning about Thea, the Mars-sized planet that crashed into Earth, possibly creating the Moon. Fast-forward to now, and I think it just looks like a really nice semi-circle. Maybe a bit thicc.

[@gustavgnoettgen]

I think I heard about the dinosaur meteroid thing too in the 90ies, handled as a promising theory at least.

[@harrietharlow9929]

The Nastapoka Arc really does look like an impact crater. And the jury isn't in on this one. It does seem strange that a plate boundary would form a nice semi-circle.

[@saims.2402]

I think it was a glacier

[@gustavgnoettgen]

@@saims.2402 But how?

[@Vladimir-hq1ne]

At my age of 12 y.o. I had a comet impact hypothesis - "remains just evaporated and the shockwave could be still seen"... Now I'm 49 and have no particular interest but daughter's physics-math education. ;)

[@lewisgordon1490]

I saw hundreds of those Mima Mounds @ 8:48, next to the road while on a winter camping trip to Mt Lassen ~ 25 yrs ago. It was so unusual it was one of the few things from that trip that stood out in my memory.

[@saywhat8966]

First saw them on a train ride to Portland, hadn’t heard of them before. Then the search to find out about them began.

[@budhicks101]

I grew up near the Mima Mounds. In fact, some of the mounds were on my fathers farm at there northern end. The area is the southern most extreme of the Olympic Peninsula. It is glacial till up to forty feet deep sitting on a plate of basalt. There is a mirror prairie, on the other side of the valley, 10 miles to the east just north of the town of Tenino WA where the mounds are also evident. The best explanation that I have ever seen for these mounds was when a geologist laid a sheet of plywood on a pair of sawhorses and covered it with sand. He proceeded to smack the plywood with a hammer. the sand sorted itself out into mounds on the plywood. These are called resonant nodes and anyone can do this do this simple experiment. In the case of the geology of the area, the basalt plate is like the plywood and the glacial till is like the sand. The hammer is the subduction earthquakes that the area is subject to every 3 to 6 hundred years which liquefies the till.

[@eddieb4227]

Very familiar with the area also. I do like the analysis on that. I woke up just before the Nisqually earth quake. It was coming at me like rolling waves. People that saw it from higher said the same thing.

[@pakde8002]

Another comment mentioned witnessing this phenomenon on a piece of equipment. However, it could be the gophers built the mounds for religious purposes ( anthropologist's go to reason for everything)

[@budhicks101]

@@pakde8002 lol

[@spanqueluv9er]

Nope. It’s water under ice depositing and then carving these hills. You willfully ignorant fools need to come to your senses.🤡🤦‍♂️

[@adrianvenegas8577]

"...for optimists?" Welp... clearly I'm not the target demographic here... *moves along*

[@lowellleland]

Hank, your mention of poking, made me laugh. Up in a canyon, I found a dead horse, that had sadly fallen and was killed. Dead animals can blow up like balloons. And of course as any kid would do, I poked the ballooning gut. It was worse than getting hit by a skunk. I was certainly as lonely, as if I was hit by a skunk.

[@shawntailor5485]

Our dogs chased a skunk thru the house and under my bed in second grade ,I know that banishment..but hey it was the only time the bullies let me not only sit in the back of the bus but had the back 6 seats to myself .needles to say it got worse when the magic skunk juice wore off . Lol.

[@shawntailor5485]

@@carrots7216 oh dude ,did you see the video of the whale exploding ,I think In Bangkok but not sure.

[@N3gativeR3FLUX]

Tiky

[@nicholasnelson1005]

this happens often to the people who remove dead bodies it's fairly common and disgusting

[@paavobergmann4920]

@@shawntailor5485 Taipeh, I think, but...yeah...that poor scooter....

[@roseonthemove]

I’d love to see more videos like this! This was awesome and insightful

[@mariacargille1396]

I love learning about stuff like this! It's inspiring to highlight the mysteries in a world that's frequently presented or treated as being already solved.

[@Bigfoot_With_Internet_Access]

Eh, I'm more interested in the fungi based foods for pessimists

[@waynemarvin5661]

Yeah. Why are they marketing only to optimists? Will they refuse service to pessimists? Isn't that discriminatory? I know, this is 2021. EVERYTHING is discriminatory.

[@sophierobinson2738]

Yeah, for pessimistic introverts.

[@CarlosLopez58]

In Trantor, the city planet capital of the Galactic Empire in Asimov's Foundation novels, they ate only funghi, they had inmense caves to grow it, it was the only possibility to feed trillions of people.

[@hope1575]

I was optimistic until I looked at the website, but now I'm pessimistic about the endeavor because it seems like their production is not up to scale to be doing this type of advertising 🤔

[@whong09]

It's just marketing, not a hate crime lol

[@rodrigoVgaspar]

The rumbling... so the colossal ones are still out there, uh?

[@guilhermemendonca8959]

SIE SIND DAS ESSEN UND WIR SIND DIE JAEGER!

[@plate_fox]

Turns out they couldn’t swim off the island and just all got stuck down there

[@fossilfighters101]

@@guilhermemendonca8959 more like "LA LA LA LA RA RI RA LA LA TI TI TI RAS"

[@andoniades]

...crab people.

[@Adaginy]

Anecdotal support for gopher theory: I have a pet ground squirrel and I *thought* she piled up dirt just to irritate me, but apparently she's making mima mounds.

[@RobCCTV]

This is a million times better than all those 'mystery list' videos that just present you with list of things that appear superficially mysterious, but never actually give you any more information.

[@KingTemplarDragon]

I would like another video talking about mysteries the geologists cant explain please, it was extremely fascinating.

[@fossilfighters101]

+

[@virglibrsaglove]

Me, too!

[@virglibrsaglove]

I'd also like one on the Bermuda Triangle.

[@eustache_dauger]

1. Open Google map. 2. Turn on terrain map type/layout 3. Go to -1.2508484, 115.8226528

[@ketsuekikumori9145]

Hank: Turns out you've been looking at a near perfect circle... every time you look at a map of the world. Flat Earther: Yes! Thank you, we've been saying that for years! Hank: It's called the Nastapoka Arc. Flat Earther: Oh... nevermind...

[@katrinakollmann5265]

Lmao

[@stevie-ray2020]

Do Flat-Earthers meet up on the global Internet?

[@Firecul]

@@stevie-ray2020 they have to, they have members all round the world.

[@nickacelvn]

Flat earthers are on a whole in possession of a small amount of easily disproved nonsense none of which stands up to any close scrutiny.

[@leegoddard2618]

Thank you for the enthusiasm in discomfort about some of these things. It really does make it more entertaining. Along with the great learning. 👍

[@rainabeveridge2495]

This is one of my favorite episodes, very cool

[@ComaDave]

Gophers: "No! No! Dig UP, stupid!" Also, large amounts of long-trapped methane being injected into the atmosphere in a short timespan? Never an attractive proposition.

[@Soken50]

hehe Earthfarts

[@ImranMusic]

It's true, everything rumbles when it hits Africa.

[@petervarga1207]

like all the african chlidren's stomach

[@t0kki_tokki]

@@petervarga1207 very dark dude

[@sehuffman]

Thank you for the geology content!!!

[@johannessordfarne4553]

Very good presentation - as always. Complicated topics made clear and managebel even for us without higher education in sciency-chemistry-physicsy-math-ish things. Thank You.

[@Mithrandir39]

The Indian Ocean anomaly is almost an antipode of the Hudson Bay anomaly in Canada.

[@therongjr]

Clearly there must be a tunnel through the center of the earth.

[@rockybalboa5743]

No they're not. The antipode of Hudson Bay is near Antarctica... The Indian Ocean anomaly is directly below South India and nowhere near the antipode of Hudson Bay...

[@virglibrsaglove]

I wonder if some sort of really enormous impact caused continental drift to begin with. And it's still going due to the lingering inertia from the shock. If it was big enough I don't see why that couldn't be the case.

[@eustache_dauger]

1. Open Google map. 2. Turn on terrain map type/layout 3. Go to -1.2508484, 115.8226528

[@Mithrandir39]

@@rockybalboa5743 If you look at the size of the Indian ocean anomaly it is not all that far off considering. I did not say it was a perfect antipode, but it isn't that far off.

[@73Stargazer]

I've lived near mima mounds for ages. They're looked on very fondly, they're really neat

[@greylance473]

You rock!! Love your videos.

[@perennials118]

Hank, if the mounds are found on every continent except Antarctica, then how are the ones in Australia explained? We don't have gophers in Australia

[@Moonlightlove31]

This video is about things that haven’t been explained

[@imagseer]

Thufurs? Freeze/thaw products.

[@BalvornLupus]

Wombats obviously

[@pentalarclikesit822]

Sings: "The hills are alive / With exploding methane. . ."

[@lisawillis8227]

🤣🤣🤣

[@renivideht]

Haha! XD

[@Carewolf]

Even the Earth farts in the general direction of Siberia.

[@zealo90]

"It's not as if you could go there and float." there's a part of the Pacific where you sink instead of float?

[@TheAllMightyGodofCod]

Zealo90 yes. The entire Pacific Ocean. I always sink in the ocean and never float. Or so I believe... I never went in the Pacific but it must be the same as any other ocean I gues... And I always sink in it.

[@juanbazooka]

I love this channel and all of the hosts, but Hank is my favorite. He just seems so emotional invested in his videos.

[@seanmccann8368]

Fascinating, thank you.

[@RidireOiche]

I have a robust hypothesis to explain all of these mysteries; A wizard did it, except the Indian ocean one I have it on good authority that is definitely Cthulhu. In my syentific opinion, that Nature's Fynd thing has Day of the Triffids written all over it. Or as a more contemporary reference The Last Of Us.

[@RidireOiche]

@@CosmoPhiloPharmaco of course! How could I have been so blind. After incomprehensive research I have discovered for definite the methane blasts are the fairies secretly testing their new WMDs but I am yet to discern their target. If I had to say for definite I'd say slenderman, santa or god.

[@elainelouve]

R'lyeh deffinitely exists beneath the Indian ocean.

[@robertanderson5092]

The flying spaghetti monster is not a wizard but a divinely delicious dish from the eternal buffet.

[@mickavellian]

Oh so you DO know of Estévaño ? Lovely chap.. As is his inseparable Burgués .

[@danielled8665]

“Adventurous geologist” that just means he licked the rocks that looked like poop.

[@planetdisco4821]

I believe there called coprolites lol

[@tazb7742]

Great stuff!

[@larrydykes7643]

Wow - great collection of geo-mysteries.

[@Tser]

I used to take Amtrak through Washington fairly frequently, and so many times that we passed them, the conductor would use the PA system to announce, "And if you look out the window, you can see the *Mysterious Mima Mounds*!" And I can't say it without that exact cadence anymore.

[@hakunamatata1352]

8:50 Mima Mounds: Do all the continents that have the mounds, also have the gophers?

[@feralcatgirl]

gophers are native to north america only i assume hank must be leaving something out here

[@hakunamatata1352]

@@feralcatgirl thanks, I was wondering that

[@zacharymoran7596]

One frustrating aspect about these mounds is that many of the theories would have the same end effects. It's entirely possible (actually probable) that the features we label as Mima Mounds actually represent several different geological types of terrain, but they all look almost identical. So what formed THE Mima Mounds outside of Olympia WA may not be the same thing that formed all of them around the planet.

[@NouriaDiallo]

@@zacharymoran7596 yes, for example, similarly shaped (but smaller) mounds can be found in French Guyana. Researchers concluded that they had been made by native farmers centuries ago to provide a drier environment for their plants (it's a very damp area), and that in the centuries after they were abandoned, the grass and microfauna had kept them in shape.

[@briangarrow448]

The Mima Mounds of Washington state were created by steroid using body building gophers. Warning- don’t make snide remarks if you take a tour of the site. These gophers are mean SOB’s.

[@rogersledz6793]

Thank you so much for uploading this video. It is helping me get through the pandemic!

[@TheSlyMouse]

One of my favorite episodes

[@mauricelewis2523]

ALIENSSSS!!!!

[@AllInnerLove]

what about them?

[@smashingintoyou]

Great job Hank! This is how you get new scientist wanting to solve just one mystery. Can you please keep this kind of videos coming?

[@khilorn]

One of my favorite geology mysteries is the Andesite Paradox. Basically, Andesite in order for it to form it needs to come from a rock that forms from Andesite. It's a weird chicken or the egg scenario.

[@ginaj1814]

Wow, all of these were amazing

[@briezzy365]

I might watch this episode over and over just to delight in Hank admitting he doesn’t know everything over and over. 🥰

[@patrician3821]

And hear him saying… it is weird! 😊

[@fungameplaysyt]

The Mima Mounds confuse me the most... Would a Gopher really spend its whole life making useless mounds? Gopher: I'll see you in 500 years when I finish making my useless mounds 😂 Me: wut is rong wif u gofer 😂😂😂

[@gustavgnoettgen]

I too think that animals (or plants?) are a good guess. The moles we have in Germany build such soil "vulcanoes" too but they don't build such big piles either.

[@itsonlyafleshwound9024]

Maybe it like a Gopher Landfill (Landhill?). "Oh this earth is trash, lets put it over there."

[@deepspire]

And why stop building them when they reach the same arbitrary height?

[@fungameplaysyt]

@@deepspire 😂

[@mbrusyda9437]

@@deepspire because that's when they feel its too much trouble?

[@ronboff3461]

excellent presentation, sir!

[@metairiemomma]

More like this please. A fun video!

[@basharmously2162]

Scientists in any field detect something happening regularly, "guess we gotta sync our clocks with this"

[@voidem13]

"Maybe it was mantle plumes" hits the same as "maybe it was dark energy".

[@emseebe]

Wow, this was genuinely fascinating, thank you. And give the presenter a raise - he's brilliant.

[@JulieAiken]

As John Locke said on LOST, "I think we're going to have to watch that again." I definitely need to watch this again - another fascinating video. Thanks!

[@lowellleland]

The earth is ringing as a bell, every 26 seconds? Sounds resonating!

[@lojickse7en]

God: (nudges the Earth every 20 seconds) Angel: Why are you doing that? God: Gotta keep the scientists on their toes 😏

[@violetabagdonaite9561]

the most interesting answer

[@alfredo42o]

@@violetabagdonaite9561 *least interesting

[@brandonk5851]

Boooo

[@AGDinCA]

This was really interesting!

[@moon-cyclist4565]

I'm surprised the "underground mountains" weren't mentioned. Some scientists were doing scans of seismic graphs n found sort of upside down mountain ranges beneath the Earth's crust. They called it the transition zone I believe

[@KOKOBC]

Sounds pretty far fetched but it does kind of make more sense the more I think about it.

[@Zappygunshot]

It's not too difficult to imagine how that would form. As plates smash into each other and fold and bunch up, you get areas where the plates are thicker than in other places. Much like how a taller boat has a deeper keel, you'd see a vaguely symmetrical mountain range form on the underside of a plate as on top

[@richardhaselwood9478]

As always, thanks for the geology content guys

[@Vulcano7965]

*Me, a young ambitious geoscience student* : Challenge accepted! *Me after watching the video* : ok these are kinda tough, ngl.

[@HappyfoxBiz]

"there is this rock that simply should not be there" me: "are you questioning the immigration policy of the country?" Are you against immigration of rocks? I am beginning to sense of some anger towards some rocks, have they ever acted violent towards you that warrented the question of the immigration practices of rocks? What would The Rock say about your hostilities against Rocks

[@venturamack]

That was so cool !

[@arthas640]

I live down the road from the Mima mounds! They're pretty cool. I thought it was widely accepted that they were deposits from glaciers? The pocket gopher idea seems unlikely since theres a bug group just outside of Tumwater near the Olympia Airport in a chunk of land that hasn't really been touched in decades since it's a protected area and there arent any mounds despite being untouched for decades (according to my parents the lands been untouched since at least the 70s but might have been last worked on during WW2 when the area was originally fenced offsicne it's part of the airports land)

[@ComfortRoller]

Hi neighbor!

[@tomthumb1322]

The semicircle could have been an impact on top of the ice shelf that made the impression under the ice, and when the ice melted, it took all of the leftovers with it. It could also have been a "closer than Tunguska" airburst pushing the ice down in that pattern. Orrrrrrrrrr, someone took all the rocks from the collision in the lake and took them to an island off the coast of Africa to throw us off. :D

[@dynamosaurusimperious2718]

Once again another awesome SciShow video Also I wish y'all a great day.

[@yvesboutin5604]

Nothing better than a good mystery to spark the synapses! Thank you !

[@ALAPINO]

Fynd, you're advertising on the internet: Excluding pessimists is not inconsequential.

[@apextroll]

Triggered pessimists will auto-engage. I like their marketing strategy.

[@ALAPINO]

@@apextroll I like their product better than their marketing only for that "for optimists" part. It's off-puttingly specific.

[@aste4949]

@@ALAPINO Agreed, and I'm an optimist!

[@Scribe13013]

Many of these mysteries reflect humanity's ignorance of the effects of resonance

[@EugeneHerbsman]

Oh man.. Here we go with Crank Green again... cranking that knowledge out!!

[@AnneAndersonFoxiepaws]

Hank is instrumental in my two favourite channels (I only just realised the voice was the same, albeit quieter) Journey to the Microcosmos and this, its nice to put a face to the voice!

[@Living_Life242]

Until I realized it’s sheer size, I thought that picture of the Nastapoka Arc was the result of one of those mesmerizing ice disks that sometimes form along slow moving rivers. Basically a sheet of ice above a bend in the river will break off and float on the surface, but the surrounding ice and currents don’t allow it to drift away. So what can sometimes happen instead is that it will begin moving back and forth from the force of the water moving past it, gradually grinding and refreezing until it finds the path of least resistance and turns into a perfectly round disk of ice that rotates with the current. The whole thing looks like someone took a saw and cut it out of the ice around it.

[@HazeyCazeyTv]

“6 mysteries that geologists can’t explain” Proceeds to explain them all

[@scottsbarbarossalogic3665]

But Hank is a chemist, not a geologist, so he statement is still true

[@Bannanasammich]

he proceeds to explain the mysteries and their possible explanations. he doesn't explain the facts around what actually caused them, so they are left to be explained by the scientists that are studying them. he is letting you understand the mystery. he isn't solving it.

[@HazeyCazeyTv]

@@Bannanasammich it’s a joke 😳

[@Bannanasammich]

@@HazeyCazeyTv its also called me being dense haha you did a r/woosh on me haha

[@zbatchDOC]

The amount of time I’ve spent on KZbin and I still find channels with millions of subs that I’ve never seen… this astonishes me.

[@silentglacierfang]

3:36, I was just looking at Ile René-Lavasseur a couple days ago because I thought it looked weird and was also trying to find different layered island formations. Really cool area with many peat-colored lakes and rivers around it.

[@Vocalinds]

I was so proud of myself that I figured out he was taking about Hudson's Bay before he said it.

[@christopheb9221]

how big are these impossible rocks? like the island is made of it or just a bunch of rocks on the surface?

[@fossilfighters101]

+

[@CNRMAX]

I got to see the mounds in person in summer of 2019. so dang cool

[@shakesrear7850]

I talked about this more than ten years ago but I didn't have evidence or production or $ to investigate so... it was just a thought. Thank you for existing.

[@geo_licious]

10:33 So now the quote, "The earth is alive." Has a completely new meaning 0_0

[@jason300c1]

I am so Happy to learn the Earth has a 26 second clock built in... may change in the future, but really cool we know about it now until we figure it out.

[@MrFishChamp]

the "gopher bumps" look like water patterns

[@tempestive1]

I learned about this in ecology a few years back, except I was presented with an explanation described as more definitive :o Basically what was mentioned, OM from turf accumulated over centuries, and how there are identified massive pockets of methane which would release into the atmosphere if this permafrost melts, further contributing to global warming. Guess its time to refresh on that haha

[@Wxwy]

Fascinating.. as always.

[@thymadness]

I greatly appreciate the amazing and literally "Mind Blowing" videos that you release. Keep up the invaluable work.

[@tbella5186]

Love clicking a Science video to unexpectedly Hank's voice!

[@adebleswordfish]

11:26 Cthulhu snoring. I’m calling it.