Fossil Meteorites
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- Опубліковано 6 жов 2024
- In which we set out and find fossil meteorites in time and space. Wait... meteorites can be fossilized?! Mind blown.
Read more about Philipp Heck's meteoritical research and the arrival of fossil meteorites at The Field Museum!
www.fieldmuseum...
Thanks to Mario Tassinari for the loan of the fossil meteorites, and Birger Schmitz for pioneering this field.
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Producer, Writer, Creator, Host:
Emily Graslie
Producer, Editor, Camera, Archive:
Tom McNamara
Theme music:
Michael Aranda
Created By:
Hank Green
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Thanks to Philipp Heck, The Field Museum and NASA/JPL for archive images and video.
Filmed on Location and Supported by:
The Field Museum in Chicago, IL
(www.fieldmuseum...)
Tony Chu, Kelleen Browning, Barbara Velázquez, and Seth Bergenholtz's translations are -out of this world-! Thanks!
Reunited in this museum hundreds of millions of years later.
If that is not the most charming thing.
This is really cool. I actually live not too far from Kinnekulle in Sweden where the fossil meteorites were found, and I've been there several times, yet I did not know about these findings until I saw this video. Fun facts about the area: They have a racetrack close-by, Kinnekulle Ring, where I took a mandatory course in safe driving on slippery roads which is necessary for receiving a drivers licence in Sweden. Also, Olof Skötkonung, the first Christian king of Sweden is rumored to have been baptized in Husaby, a village near Kinnekulle, in the year 1008.
Go look around for me , they are heavy , look where gold would be , stream beds ,Rocky lakeshores , bring a magnet.
I live in Sweden just at the foot of Kinnekulle (where the meteoroids were found) and read about them in the local press as they were transfered from an, apparently, ungrateful local museum to Chicago. It's awesome to actually learn about the science behind these instead of just reading about the logistics and what else the local press finds of interest.
DFTBA! :D
Serious question (and I hope I can ask it properly) -- My understanding is that fossilization changes the makeup of the stuff it fossilizes. In other words, the old minerals are leached out and replaced by new minerals. And in this video, he says that's what happened with this meteorite. So if this is the case, when he does the electron microscopy and all the analysis and stuff, shouldn't the results NOT match normal meteorites that land on the surface? After all, those surface meteorites are in their original form, while the fossilized meteorites have been changed by the fossilization process. Right? Wrong? Am I missing something here?
Chromite grains are able to survive the processes that affect other minerals in meteorites on Earth. So they study these leftover relict chromite grains. Everything else has been altered/replaced, but these chromite grains are left behind. Neat right?!
Puchinita5 very neat. thanks for the info.
C.I. DeMann Also, there are some forms of fossilization where the original material isn't replaced :)
My class listed several different kinds of fossils:
1. Original preservation - still made of the original material.
2. Carbonization - a black smudge made under high pressure.
3. Recrystallization - as water dissolves some of the original material, crystals form and encapsulate the remaining material.
4. Replacement - water removes all original material, which is replaced entirely.
5. Permineralization - water carries minerals into the original matter of a porous dead organism part, encapsulating it.
6. Molds and casts - preserved indentations like footprints and reproductions of their inversions.
There are three categories: body part fossils, chemical fossils (like coal and oil), and trace fossils (imprints like footprints).
HeyHeyHarmonicaLuke Friggin' awesome, Luke. You rule. Thanks for the info.
:)
You might enjoy checking out the class, it's free and online. It's too late to earn the certificate because it's past the quiz deadlines for all weeks but this week, but you can still sign up and watch the lectures.
www.coursera.org/course/emergenceoflife
The audio channels should be reversed. Emily's on the right for most of the video, but her voice comes through the left audio channel.
Lol nice observation
I very much appreciate the music choice for this one! :)
Yep, I was about to mention that too. Saint-Saëns worked surprisingly well for this. Well done!
Why would anyone possibly dislike this.. Dude, you missed the 'like' button.
I love the way he says 'iron'. This is so fascinating!!! The time scales are just so extraordinary and difficult to get your head around, but beautiful nonetheless! Emily asks the best questions. I freakin' love this channel.
Can we please have more dissection?
Did you notice that dr. Heck's audio only come from one channel? I was listening with only one headphone (at work) and I thought his mic was off, until I used the other headphone and got his audio...
I caught that you used Camille Saint-Saens' 'Fossils' movement from 'Carnival of the Animals.' Nicely done :-)
I just love how they explain everything in an easy way , but what i love most is that the raccoon is always to be seen somewhere around the videos xD
He hasn't missed a single episode. Frankly, I'm surprised nobody has gone through all of our videos and screen-capped his appearance. He's purposefully difficult to spot in some of them.
Is anyone else really happy about the meteorites being reunited after all this time? Maybe I'm just tired and need to go to bed, or maybe I'm just weird, but I had some real feels at the end there.
I love this video, so much passion and enthusiasm from two fellow coworkers (Emily and Phillip) . Thank you for a super informative and educative video !😄🗺🌑💟 xx
This episode was really special to me, I grew up right next to that quarry and have found lots of fossils there, although no meteorites. Even at the first glance of that meteorite it seemed familiar, and sure enough I was right. Did not know it ended up at the field museum!
I was disappointed that I was only able to see a third of the Field Museum on a recent bus tour to Chicago. :(
The dialogue needs to be panned to the center channel.
"If you find one at 6 feet, and one at 3 feet, how much space is between the landings?" *awkward look, camera cut* "Can be several hundred thousand years..!"
Not to nitpick or anything since it can be awkward to be put on the spot, or maybe he gave a really long answer and they just refilmed with him saying a short one, but I was still mildly amused.
How does the same group of meteorites hit the same small area over hundreds of thousands of years?
(And as a much less important question, where did Emily get those earrings?)
Is it just me or is the audio quality in this video reduced compared to previous ones?
Yeah maybe because they had to take the equipment to this lab area they couldnt take the best mics?
This dudes audio has only right channel. Emily's has got both channels.
That is some cosmic romance at the end! The whole math of the universe and how things come together and break apart - fascinating! I hope Mr. Heck comes back again to blow our minds (again!) soon!
Having a blast going though all your videos!! I love uncorking a nugget of awesome :)
that old slide effect on photos is very annoying, we want to see the pictures as clearly as possible. Please spend time on uploading resolutions above 1080 instead of degrading quality of pictures. thank you.
Woot another episode about 2 of my favorite subjects, space, and radioactive stuff!
Love the choice of music.
Fossil Fish, Fossil Meterorites ... what's next ?
I would love to learn about more non-traditional fossils ... all very interesting to me.
Great job Emily in keeping a balance between too much technical detail and not enough :)
Shout out to Emily for asking all the questions! You always ask enough of them so I understand everything. Also shout out to Michael for putting in Fossils from Carnival of the Animals
I really enjoy the geology portions of your channel. All of it is entertaining but I'm definitely a fan of the rock talk.
OMG!! I'm from Park Forest! I was home from grad school for spring break and heard that meteorite come down. We thought it was fireworks. It landed probably half a mile from my parents' house, right through somebody's roof. So cool!!
I love it when two scientists talk about each others' subject and they both randomly fail at something from the others' subject and nobody notices. Emily and Phillip, Destin and whoever he's talking to at the time, Hank and Jessi, me and my stepdad XD everyone does it at some point.
dont know if anyone else noticed but the audio was flipped. the guy on the left sounds in the right ear and emily is on the right but sounds like she is on the left.
Well, clever musical choice but wouldn't it have been more appropriate during your digging episodes? It's from The Carnival of the _Animals_ after all, so it stands to reason that it's about animal fossils, not meteorite fossils.
When that piece was written, nobody even knew meteorites could be fossilized, so I guess the solution is now we need a symphonic movement devoted to fossilized space material.
***** i vote Penny Lane for the new piece. They pointed it out! :)
Hey! Just wanted to say thank you for posting these videos. Keep up the awesome work!
This segment was especially cool :) Thanks for sharing!
The sound (Not the background noise) was super iffy in this episode
What font is used in these videos for the figures and labels? I'm taking zoology this semester and I want to use it in my lab journal as an inside reference to how much this show inspires me
I really like the inclusion of Carnival of the Animals for this episode!! Cool stuff!!
Cool! This is a really interesting episode. I had no idea there were such a thing as fossilized meteorites, and I'm from Sweden. I might want to visit Kinnekulle now, even if it's far from where I live.
Cool I was at that quarry just a few weeks ago. At least I think it was the same one. It has a put-and-take lake where you can fish for trout. Nice place :-)
holy crap I truly learned something new today,meteorites can be fossilized.
I collect meteorites and that concept just now got into my head. I had no clue they could be fossilized. There is a limestone quarry 30 miles away from me.. i am going to check it out. I have found meteorites in stranger places :)
Start the day at the North Carolina Museum of Natural Sciences...end it with the Brain Scoop. Not bad. (I was even looking at some pieces of the Park Forest meteorite at the museum.)
I love how you always ask the questions i would ask :D
this title is two of my favorite words together
I was kind of hoping it would have ended with "...it still has grains on it." :-)
Cool video! I like the Saint-Saens excerpts! :-)
Mind Blown. awesome stuff.
A couple of years ago I went on a fossil hunting trip to the Jurassic coast in Southern England, checking out the beach and base of the cliffs from Lyme Regis to Weymouth. The area is mostly Jurassic and Cretaceous.
The next year I went on a similar trip to the chalky cliffs of Dover and Folkestone which were formed in the Cretaceous.
In both cases I was struck by pieces of iron scattered throughout the cliffs, though apparently more concentrated in some strata. I think in the chalk cliffs they were occasionally associated with pyrites. The pieces were usually a couple of centimetres.
I puzzled about how they could have got there.
Could they be meteorites?
+Raymond Marchant Sounds like they might be "bean ores". Little aggregations of limonite (iron ore), usually found in limestone. Are they kinda rusty brown and round-ish?
That sounds exactly right. Do we have a good theory on why they occur?
+Raymond Marchant Relatively acidic water dissolves the iron, the chalk neutralizes the acid and the iron precipitates into those little lumps. Fairly simple, really.
Stereo mics 101!!! Love the video and love the channel, but please swap your stereo mics around. I rotated my headphones, but please don't make 20-60K people do this again!
Your awesomeness is nearly beyond my comprehension Emily ;)
Thanks for the great vid you guys. Lookin' forward to the next as usual.
Didn't even know they existed. The question of what a Fossil Meteorite is should have been the opening question.
I understand this is in Layman's terms, because you work in a museum, but c'mon now.
I feel this video could be a little more populated with scientific and technical explanation.
As someone who has studied geochemistry at university, I think they put in just enough. Any more and the video would become exponentially longer as they stumble to explain the complicated processes involved.
Andrew Boyes
So did I, but I disagree with you, in fact most scientific related channels introduce some proper scientific knowledge, probably to sparkle the minds of the interested, like Veritasium,Vsauce,SciShow etc. Even a brief schematic of how an Electron Microscope works would be absolutely fine or a proper explanation on how the space environment affect the crystal structure of the mineral(personally I found this particular explanation absolutely empty).
It almost feels like Emily is walking on uncharted lands when talking about these geology related subjects, when basic geology is actually an obligatory class to be taken when you're graduating from biology(which I presume she has or is going through, given the high quality explanations she has in this matter)
Draxis32 You're completely right - if it seems like I'm walking on uncharted lands you're correct, since I didn't go through basic science classes as I graduated with an art degree. So, I appreciate that you consider I give high-quality explanations for the matter.. considering I never took geology in college.
The work that is conducted at the Field is, very often, over my head. The purpose of the channel is to share that work, regardless of my understanding. I do my best to keep up, and we try to keep it as conversational as possible - but treating this channel as a substitute for a college lecture on a specialized field won't be possible for some time. There is definitely a middle-ground we hope to achieve, and I think we did it with this video considering the depth of the concepts.
***** For me your channel so far is excellent in a sense that it should push the people into the way of asking questions, trying to find answer on their own instead of just getting the content (as already said before, other channels are doing that already).
Then I think you are doing a great job Emilie (I know it's a "y" but I prefer my french way ^^), keep up and it will become better every time :-).
*****
I am rather surprised by this answer, you've graduated in Art, yet you have incredible abilities on dissecting animals, of a level that is actually unusual even inside biology graduation, a prime knowledge in zoology and evolution. If your just job was just to spread the works of the Museum, than you have done greatly and gone past your objectives.
On another note I'm glad you're taking constructive criticism well, I assure you I've meant no offense.
As a matter of fact, I must congratulate you since it's you, Emily, who writes and produce the videos that take on the Biology subject, your effort and understanding in this matter are far more deep than most channels.
But, in that perspective, I am surely not asking for a college lecture, as no youtube video can substitute one,but I do think that given your tact and effort to present us such great material you could perhaps enhance it with more information, just to show to your public the doorsteps of a college class. I think you can handle it.
This is more of an editing question, but why were left side and right side stereo switched? it was very confusing.
1. stereo channels are inverted
2. Are you going through the whole carnival of the animals suite?
aaaaaaahhhh the left and right audio channels are switched
love that bit at the end, but,... meteorites have brains? did NOT know that. 🙃
I'd love to see a Brain Scoop and Radiolab video collaboration -- I know you guys did a podcast together!
*googles cephalopod*
add search term "the oatmeal"
Octopuses and squids.
And what do you know the search results are all porn links.
As always a great educative and informative video :-). Thank you Brain Scoop!
So not all of the minerals are replaced?
it's also amazing you can now have a scanning electron microscope just chillin' on a side table.
The Ordovician Period is 444 - 488 million years ago. 500 million would be in the Furongian Epoch, the 4th Epoch of the Cambrian Period 488 - 500 million years ago, or the Third Epoch of the Cambrian Period 500 - 510 million years ago.
I really nailed the proper time to watch this.
I thought for a second that the title meant meteorites with fossils in them... until I realized that meant space dinosaurs or something.
Saint-Saën! Carnival of the Animals! Thank you, I used to teach this piece to 1st graders. Great music choice!
So when Phiipp says "terrible metamorphosis", is he using terrible in a scientific way or just saying the meteorite had a really rough life?
Fantastic as usual. Love me some SEM Action.
Is it me or the right and left audio channels are switched?
Love this channel but the stupid swiping noise at camera change is very annoying.
Really great questions.
Watched this with my headset on the wrong way to get the voiced on the correct sides :P
Thank you Emily, as always.
How long does it take to fully study/catalog one specimen?
this is so cool, like I find all the videos on this channel really interesting but just this is great ahh I love it
Science is the best!
OK, that a rock that is inorganic (not from a living thing but it has carbon organic) can be fossilized kinda rocked my semi-literate scientific world. Stuff got learneded thank you VERY much. More Dr. Heck please, and for an "Art" major you really ask great questions, good research on you part Emily. Very happy to have found this channel.
Ok fine you can date meteorites hundreds of thousands of years in the past, but can your science explain how it rains?! (great video as always)
This video is so cool!
I completely enjoy and appreciate your videos. I have found, using Google earth and personal exploration, what I believe to be a very large meteorite and expansive debris field. I have collected many samples. I have taken samples to be examined and was more so interrogated as to where the location was or offered a substantial amount of cash for my samples with little or no explanation.
yay Brainscoop!
great video, but 360p?
After any video is uploaded on UA-cam, the quality is made better slowly as time goes on. Wait a few minutes and it should be at 1080p.
I have 720. Sometimes it takes a while for youtube to offer the nicer resolutions.
720 for me
interesting, I guess I've never caught a video this early before, thanks!
The Brain Scoop, reality show: Reuiniting meteorite families. Will the 2003 meteorite be welcomed home after missing for hundreds of thousand of years? Tune in next week to watch it all unfold!
wow, fossils and meteorites together... it's a geologist's dream!
Reunited and it feels so good
I. Have. Three. Space. Rocks. But. I. Need. Help. I. Did. Most. Of. The. Test. I. Need. A. Larb
I found what I believe to be a meterorite here in Houston Texas. Where should I take it to get identified?
Why nøt visit Sweden? Cøme see its løvely lakes and mighty møøse and.. føssil meteørites!
Y'know ... I've nevere seen an electron microscope before. That was kinda cool!
Was this directed by Michel Gondry?
I'm confused...if these meteorites truly are fossils, which, as you explained, means their minerals have been replaced, how is there any material you can use to age/test the mineral composition of the original meteorite? Are these only partial fossils?
Chromite grains are able to survive the processes that affect other minerals in meteorites on Earth. So they study these leftover relict chromite grains. Everything else has been altered/replaced. Neat right?!
Super neat! :D Thanks for explaining, geology/mineralogy isn't really my area.
Okay, when you are doing dialogue in videos, everybody's voice should be straight up the middle. No panning, just mono, all in the center. It is literally (yes, literally) disorienting to listen to, and will be completely broken if one side of a person's headphones or whatever doesn't work. Sorry about the angry tone, it really rustles my jimmies.
So, if you've got to Meteorites from the same parent body, what's the difference in the SEM profile from a meteorite from a different parent body? How many classes of things is there?
this video is produced like a freaking wes anderson movie
Swedish fossil meteorites. Now there's something you don't see everyday
thank you so much for this awesomely ha bisky vid i loved learning about meteorites this is just so interesting
Yes, blast it with electrons! (I remember when doing TEM on protein samples I did sometimes melt the grids). I was not expecting the SEM to be doing the elemental analysis, I'd think that mass spec would be needed for that.
Also, would the cosmogenic isotopes not diffuse slowly away from the original object, eventually setting an age limit for accurate determination? (I'm fairly sure that they do, but I suspect that that timescale is probably too large)
I think the mass spec can do trace elements better (parts per million, billion, trillion kinda stuff), but for bulk elements a SEM does just fine.
Interesting though that in a fossilised specimen the original material can be classified as 'bulk' - esp. when the original material has been completely replaced.
Although I must admit I don't know how much replacement there is as I'm no geologist.
So how does it do the elemental analysis? Does it contain an in-built spectrograph or does it measure emission from electron impacts?
Jason93609
I'm guessing they have an EDS bolted on to the SEM: serc.carleton.edu/research_education/geochemsheets/eds.html.
As for the isotope analysis, it appears they looked at He-3 and Ne-21 which are both stable (or so wikipedia tells me). Apparently they are trapped by the chromites, which might prevent diffusion?
More reading here: onlinelibrary.wiley.com/doi/10.1111/j.1945-5100.2008.tb00669.x/pdf and here: www.lpi.usra.edu/meetings/lpsc2003/pdf/1751.pdf.
John-Alan Pascoe wow, thanks for all the references! They are very interesting!
It's nice to know how these techniques work :)
This guy has been cooked very well! plus chemistry, plus very pure sample = This guy is the Walter White (aka Heisenberg) of the Meteorites!!! Great Video!!!
So what kind of meteorite was it in the end?
A H Ordinary Chondrite? Given we are seeing equilibriated chromite grains suggesting metamorphism or some other type?
The urge to be fancy has risen so hard for this video. Great stuff.
The sound is flipped.
You forgot about the lake Murray meteorite.