200 Earth Impact Craters Mapped by Size and Age
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- Опубликовано: 31 май 2024
- Mapping all 200 impact craters of the Earth Impact Database, Planetary and Space Science Centre
Keywords: Geography Viz, World Geography, Earth Impact Craters, Crater Size Classes, Crater Ages, Earth Impact Database, Planetary and Space Science Centre, Impact Craters Map
0:00 Intro
0:19 Carancas Crater
0:31 Haviland Crater
0:48 Kaali Crater
1:17 Douglas Crater
1:45 Boxhole, Aouelloul, Amguid, Monturaqui and Wolfe Creek craters
2:20 Barringer Crater (Meteor Crater)
3:28 Rotor Kamm Crater
3:40 New Quebec Crater
3:50 Gow Crater
4:17 Tin Bider Crater
4:28 Piccaninny Crater
4:42 Couture Crater
4:57 Connolly Crater
5:26 Spatial distribution of earth impact craters
5:57 Upheaval Dome Crater
6:10 Bosumtwi Crater
6:20 Gosses Bluff Crater
6:30 Haughton Crater
6:43 Ries Crater
6:53 Slate Islands Crater
7:03 Clearwater West Crater
7:14 Mjølnir Crater
7:33 Kara-Kul Crater
7:44 Manicouagan Crater
8:12 Sudbury Basin Crater
8:38 Chicxulub Crater
9:16 Vredefort Crater
9:54 Earth impact craters map
References & Photo Credits:
Earth Impact Database, Planetary and Space Science Centre. Accessed 2/1/2024. www.passc.net/EarthImpactDatab...
Many Google Earth and NASA World Wind imagery screenshots
Carancas crater photo by Naturkundemuseum Berlin. www.meteorite-recon.com/home/...
Kaali crater photo by wwikgren, 6/21/2016. www.flickr.com/photos/2322730...
Veski S, Heinsalu A, Kirsimäe K, Poska A & Saarse L (2001) Ecological catastrophe in connection with the impact of the Kaali meteorite about 800-400 BC on the island of Saaremaa, Estonia. Meteoritics & Planetary Science, 36, 1367-1375.
Mö NA (2020) The Kaali impact as trigger of a mega-tsunami event and violent seismotectonics in Sweden. International Journal of Astronomy and Astrophysics, 10, 235-246.
Kenkmann T, Sundell KA. & Cook D (2018) Evidence for a large Paleozoic impact crater strewn field in the Rocky Mountains. Scientific reports, 8, 1-12.
Amguid Crater photo by B Devouard. commons.wikimedia.org/wiki/Fi...
Monturaqui Crater photo by RudiR commons.wikimedia.org/wiki/Fi...
Wolfe Creek Crater photo by enet_gre. greenhillmigration.com.au/sig...
Kring DA (2007) Guidebook to the geology of barringer meteorite crater, Arizona. Houston: Lunar and Planetary Institute.
Rotor Kamm Crater photo, O Ernst, 26 Apr 2017. commons.wikimedia.org/wiki/Fi...
New Quebec Crater photo, courtesy of D Sarrazin, 12 Oct 2007. earthobservatory.nasa.gov/ima...
NASA image of simple and complex craters commons.wikimedia.org/wiki/Fi...
Tin Bider Crater imagery NASA Earth Observatory Image of the Day, Dec 19, 2010 (Instrument: EO-1 - ALI). earthobservatory.nasa.gov/ima...
Neville AS, Cook DJ, Afifi AM & Stewart SA (2014) Five buried crater structures imaged on reflection seismic data in Saudi Arabia. GeoArabia, 19, 17-44.
Cratonic Regions Map www.athenapub.com/aria1/PAL/c...
Gosses Bluff Crater photo / an_impact_crater_in_th...
Haughton imagery is TanDEM-X elevation model provided to Earth Impact Database by Manfred Gottwald
Haughton shatter cone photo modified from Fig 2 of Osinski GR & Spray JG (2006) Shatter cones of the Haughton impact structure, Canada. In First International Conference on Impact Cratering in the Solar System.
Ries Crater photo by Wolkenkratzer, 10 Jul 2016. commons.wikimedia.org/wiki/Fi...
Dressler BO, Sharpton VL & Copeland P (1999) Slate Islands, Lake Superior, Canada: A mid-size, complex impact structure (No. Special-Paper-339). Geological Society of America.
Manicouagan Crater imagery www.myscience.org/news/2023/d...
Sudbury basin imagery earthobservatory.nasa.gov/ima...
Sudbury basin cross-sections craterexplorer.ca/sudbury-imp..., initial source Ontario Geological Survey
Sudbury basin cross-section commons.wikimedia.org/wiki/Fi...
Chicxulub imagery commons.wikimedia.org/wiki/Fi...
Impact artistic rendering (NASA) commons.wikimedia.org/wiki/Fi...
K-T-boundary rock image from commons.wikimedia.org/wiki/Fi...
Allen NH, Nakajima M, Wünnemann K, Helhoski S & Trail D (2022) A revision of the formation conditions of the Vredefort crater. Journal of Geophysical Research: Planets, 127, e2022JE007186.
South African dude here. I was born inside that crater and my family still own farmland in it. It's way too big to even identify as a crater until you explore the mapping. Arguments have raged for several years now with people speculating that region of SA having had the worlds largest reserves of gold and platinum group metals due to the impact penetrating the crust so deeply and ejecting deep Earth material to the surface.
It seems that the force of impact may also explain the presence of diamonds as well considering that they are the product of carbon under intense heat and pressure that would have been created by a meteor strike.
@ChiveauxSnow-fk4qw Crater is away from fault lines between the tectonic plates.
Asteroids can also have high concentrations of rare metals, maybe it was a metal rock that hit?
@ChiveauxSnow-fk4qw That was covered in the video.
This is true. The original metals formed with the Earth all melted and sank into the core. All the ore we mine within a few miles of the surface that isn't volcanic, was deposited later from asteroid impacts. This is also where Canada gets its vast nickel deposits from
As someone from Sudbury, one thing is i can assure that this town would not exist if that asteroid didn't hit, almost a complete mining economy here. Great vid!
I studied Geology and Mining Engineering in Sudbury, can't say it was my favourite city, but at least you guys still have somewhat affordable housing.
Were all the minerals there brought by the asteroid?
@@user-lb8bg6kj9m In short no. Some of the minerals for sure were deposited by the bolide but it is impossible to know what percentage because it was 1.85 billion years ago. What the impact did create is meltzones where trace amounts of metals naturally occurring in the earths crust are essentially liquified and then they begin to separate and clump together because of similar densities, melting points, etc. When they cool they form ore zones or areas that can be mined profitably because the now have higher mineral/metal content.
There is an amazing series on RUclips called ORE DEPOSITS 101. You should check it out.
@@Brett733 sounds accurate, nothing to do and the roads are terrible lol
@@user-lb8bg6kj9m No, some of the minerals but in short, large bolide impacts create meltzones and then similar metals/minerals bunch together due to like densities and physical properties etc... When they cool they result in orezones which can be mined for profit.
Awesome video, thank you.
It should be said that water covers about 70% of the earth's surface, so we are only seeing about 30% of the impact signatures.
I'm sure there were a lot of impacts on ice sheets that melted away as glaciers receded too.
We're only seeing a small fraction of impacts that have happened.
Absolutely! The oldest oceanic crust is *only* 340 million years old.
Thats relatively young
Yeah first thing I noticed is how we almost no recorded strikes in the ocean
6:46 hi there, it is important to say that the town shown (Nördlingen) is round because of the medieval town wall. Not because of the crater rim. The crater is 50 times bigger than that. Good video tho!
but the town is still inside the crater
@@mreggs3731 Yep. That's 1 burg that really is a "hole!"
@@mreggs3731 Yes, but there is also a bunch of villages inside the crater that are not round at all. From the church tower, you can see the crater ring as a curious ring of hills around the horizon. That´s how big it is.
It’s probably likely that the medieval wall was built around the crater because the uplifted terrain provided natural fortification, an interesting way to view it.
@@Matt-jp6if No the crater has literally nothing to do with the wall or town itself. The people building it probably didnt even notice that they were setteling inside a crater, since it is so large.
Oh man - New Zealand gets left off the map *again!* :)
Not for the solar micro nova 😅
Reallying not a map you'll want to be on 😜
I watched this to see if we had any were not even on the map lol
5:41 Draw an X where Tasmania used to be.
Maybe it has to do with the abundance of Laser Kiwi
South African here. My country rarely experience earthquakes, volcanos, tornados, tsunamis and other natural calamities - other than droughts and floods we are sitting pretty . Good to know we hold the record for the biggest meteor impact
South Africa contains the Kaapvaal craton which is some of the oldest and most stable rock on the planet (it's more than 3 billion years old). Our geology is actually pretty interesting due to how extensive the geological record of the craton is given its age and its erosion resistance due to the arid climate of the region- although I recognise how "interesting geology" may sound like a bit of an oxymoron.
Deniliquin structure (~450 million year old circular structure around 500 km across in Australia): you sure?
@@kane2875 I'm not surprised that an Aussie want's to deny a South African one single piece of victory. WTF is wrong with you bunch of British boot-lickers?
Ei, puteti fi mandri si de faptul ca aveti cea mai mare rata a criminalitatii de pe glob.
kind f funny how except a few hits along the top and the middle Africa tends to be pretty unhurt ... same with the asian east and a bit of Australia ... and just the west coast of the Americas with the tip of South America being ok .... the rest of us got a beating for sure
An extremely good video, presenting data in a well organized way. I like that only 'craters' that are well accepted by the scientific community are presented. A couple of interesting craters that I would have liked to see presented are:
1. The Chesapeake Bay impact helped form a bay that has been very important in American history.
2. The Cumberland Gap impact helped create the easiest path through the Appalachian Mountains, rediscovered by Danial Boone. This speeded up the Western Expansion of the settlers, getting them across the biggest physical mountain barrier to Western Expansion, greater than the Rocky Mountains, curiously enough. Another historically important impact.
Born, raise, and spent most of the life in Hampton and everyone can tell where the outer rim of the Chesapeake Bay Impact Crater is. Inside the crater, the ground water is so salty and disgusting that one can't even water the grass without risk of killing it. Just a couple of miles outside, the ground water is fine. Outside some iron, the ground water is actually safe to drink and use.
I read that the tsunami created by the Chesapeake Bay impact reached as far inland as the Blue Ridge mountains. Further north on the Atlantic coast is the Toms Canyon impact site, at the mouth of Toms River in NJ, where the river meets the ocean, and may have happened at the same time as the Chesapeake event.
Is there evidence of the Cumberland Gap being caused by an impact? AFAIK, it's a classic example of how rivers can maintain a pass by eroding their beds as fast as the mountains around them rise.
I’ve been to Barringer Crater. They have a large piece of the iron meteor that created the crater inside of the viewing area. Worth the trip.
Ya me too, quite a place!
Have to disagree. Barringer Crater is now $55 a person just to see the crater post-Covid. Go and look from a distance and high ground.
@@kainepeterson6638 wow. $55 is ridiculous. It’s been almost ten years since I was there.
@@kainepeterson6638 Thats crazy. I remember being there when I was younger and it was around $20
It was so fortunate that the meteorite missed the Visitor Centre !
As a South African this makes me want to start digging up my backyard just incase I get lucky
best chance to find something compared to anywhere else in the world
Excellent compilation. The hard work is appreciated. Thank you!
Glad you enjoyed it!
@@geogvizI would buy a hard copy of a map showing all these impacts!
Informative but also brief and to the point. Thanks for doing this.
Interesting video; but I noticed that there was only one described crater which is under water. I assume that a meteor which strikes our planet is just as likely to hit any given spot on the planet, whether is it covered by water or not, and since about 70% of our planet is covered by oceans (not to mention the ice sheets which still or once covered major areas), the number of major hits our planet has taken may be much greater than what the land-based craters indicate.
Excellent point!!
Indeed, but most oceanic craters disappear as oceanic crust is subducted. Pretty much all of the world's oceanic crust was created no more than 200 million years ago, so older impacts were purged from the record.
There are multiple reasons for fewer known oceanic impact craters in spite of more area.
One is that smaller impactors only form a very short-lived temporary crater in the ocean water. If that happens, all you can detect geologically is tsunami deposits and, if you're lucky, some seafloor deposits. There is one well-known example: the Eltanin impact 2.5 million years ago in the southwest Pacific off Chile (look it up). So only larger impacts produce a crater on the seafloor.
A second reason is, obviously, that it is more difficult for geologists to explore the seafloor.
A third reason was already named by drex6347: seafloors get subducted and thus are generally much younger than continental crust.
Also, considering how little of the ocean floor has been mapped, how difficult is to reach it, and how difficult would be to notice a large crater covered by marine life in shallow depth or in the darkness of abyssal depth, finding any submarine craters at all would be an exploit.
The Wilkes Land crater under Antarctic sea ice should have been mentioned. 3 - 5 times the size of KT extinction asteroid. Permian extinction was most likely caused by this asteroid. The Siberian traps which suddenly erupted are antipodal to this crater. NASA’s GRACE satellite found evidence of the Wilkes Land crater by detecting a MASCON (mass concentration).
The city of Nördlingen's circular wall has nothing to do with the geological structures of the much larger Nördlinger Ries crater. In fact the city is not in the center but on the southwest of the crater basin.
Fascinating. I had no idea surviving impact craters were so widespread and numerous.
We should have had more impact craters than the moon owing to Earth's more stronger gravity. Thank the weather and plate tectonics for erasing 99.99% of all impact craters.
Awesome. From a Canadian who's looking at maps all the time. And the crater patterns on other planets and moons.
There is a perfect semicirle in the Eastern shoreline of Hudson's bay that sure looks like a big impact crater but I haven't seen it listed as one.
Take a look.
@@abrahamdozer6273 I’m sure the reason why is because there isn’t definitive evidence that it is a meteorite crater.
I mean, anyone with a map of Canada can tell you that it certainly does look like one.
@@tonydai782 I get it but it sure looks like one ... even has a cluster of islands at the focus of the circle. It's a more perfect circle than a lot of the impact craters listed. I'm sure the reason why is that they don't have enough evidence but ... take another look and forget what you think that you know.
@@abrahamdozer6273 there is something like 2000+ more he didn't list as they are not confirmed or dated.
the moon has over 9100 visible crater impacts, earth will have been hit lots more than that, it just they ether get erased or are air burst so the crater is gone or didn't form
@@abrahamdozer6273 It for sure is a crater, I made some calculations with Google Earth Pro and the diameter must be around 450km.
I really enjoyed this video. Thanks for putting forth so much effort on siting sources and explaining each crater. I will now watch your other vids....finally the algorithm suggests something worth watching!
In my elder years, this kind of thing becomes more and more interesting. Very nice presentation! Geology is a wonderful science. Keep up the good work!
I love these super detailed videos on somewhate niche topics. Thanks for providing such a well explained video!
jerma jumpscare
Great video mate - I was hooked all the way through.... and learnt many things!
Very cool graphic that includes both size and time. Great explanation, too. Well done!
They since found a bigger one than Vredefort, in Deniliquin Australia, late last year or early this year,
Edit: A crater diameter of around 520km after looking it up again
Looking at maps of that area shows few other impacts.
I bet there's a few smaller ones in that area that were obliterated by it.
Deffo @@jimmiller6704
This was a really Informative video, you could explore more of these craters.
Dear Geography Viz,
I am a nerd to the third power. I geek out of geography, statistics and charts. Any three of those tickle my pickle and youve rolled all three up and put a nice bow on them. Youve done a fantastic job! I really appreciate that youre not blasting up with a bunch of fillers, cliffhangers, "subscribe now' or uncessary clips. You just throw good ol data at us, and we love it! If your content is good, you dont need that junk.
Congratulations on making a great channel. Sit back friend, youll be on the million subscriber bus soon!
❤ Kate from Indiana, USA
Great and novel idea concept on this video, clear advancement in production value as well! You may have knicked a natural crossover audience from the space community on this one.
Wonderful map & database view. Gene Shoemaker was a legend not only for his devotion to impact discoveries and analysis along with his wife but the famous discovery of Shoemaker - Levi Comet ; real-time observations of the impacts on Jupiter that really opened scientists eyes to the immense impact energy evolution in Jupiter"s atmosphere that dwarfed Earth's size and what these ancient impacts on Earth truly entailed and surely to happen again.
Thank You!!
The biggest one might be in Antarctica though with a 480km diameter (Wilkes Land). And there is a really nice patially hidden one in north west Greenland (Hiawatha, 31km).
Also look up the Deniliquin Structure in Australia. Estimated to be around 500 km if confirmed to be an impact crater. It could have been responsible for the Late Ordovician mass extinction.
Oooh, nice one!
@@MarkxTube Look up Shiva Crater west of Mumbai India. A geologic feature 600 km long by 400 km wide created around the time of the Dinosaur extinction event. If confirmed then it would make the Chicxulub impact puny by comparison. The 24 kilometer Boltysh crater in Ukraine and the 20 km Silverpit crater north of the German coast were also dated around the same time. 4 mass extinction level impacts around the same time. It's a miracle 25% of life managed to survive.
What an interesting video! I particularly liked seeing the way different weathering conditions affected the impact craters, some nearly obliterated while some are easily recognizable (by Geologists that is). Great presentation!
I absolutely love this. Great voice and great video.
I live in the closest city from the Manicouagan crater and the most notorious thing in the region is actually the dam. Of course it’s the biggest dam of its type in the world, but people tend to ignore how we have one of the largest craters on earth sitting “nextdoors”.
Cool video, thanks for the work putting it together. The annular lake in Quebec has stood out when I explored google maps, it was unclear to me if it was a crater or just an extensive dam works that created it. It is on my bucket list to go see in person.
I live in Baie-Comeau (closest city from the dam and the crater) and the dam offers a small museum of its construction if I remember correctly. The crater is not well documented though, mainly because most people here work for this dam and a few smaller ones. I haven’t been there in a while since it’s very far away for what it is, but there’s definitely something set up for tourists out there!
Excellent summary of these extrordinary and unique events! I visited an impact crater in Quebec in 2005, along the coast, near Lac de le Tourelle, amazing. Even more amazing was my visit to Bosumtwi Impact Crater in Ghana in 2022. Over 900 ft deep depression and more than 10 km across it was truly incredible. We just saw it on a map and said let's go there, spectacular!
What an incredible video display. It always blows my mind to think of the forces involved at the time of impact. I imagine one hitting the Moon, what we’d see, if anything.
Just the forces in Earths tectonics is incredible
I found Gosses Bluff by accident on google Earth. Couldn't see any tracks in, so I thought it might be unknown. Also on second thought I guessed it to be volcanic, because of the height of the walls. Thanks for clearing this up for me.
6:44 That's the town of Nördlingen and that ring is just its medieval city walls - not an impact feature, as far as I know. The impact crater the town sits in has a diameter of 25 kilometers.
I grew up in Middlesboro, Kentucky, which was built in the Middlesboro crater.
Natural defensive ramparts. Genius for the security minded.
Great video. I’ve been to Barringer crater when my grandparents lived in Arizona, it’s crazy to think of all the craters that are so much larger than it since Barringer feels absolutely enormous.
I got to see the barringer crater from a jet while on my way to LA, was incredible to see as it was always on my wishlist to see with my own eyes as a little kid. Got so lucky I looked out the window when I did!
Alright! Great topic for a video!!
This is crazy! I just visited meteor crater in spring break last week. It’s truly humbling to see the scale and power of nature in this form. Also very well preserved, it felt like looking at a time capsule of when the impact happened.
This is a fantastic presentation. Thank you.
Wow ... thats amazing. Thats like the first time I saw all the craters in one single video. Great content. Wow.
Don’t forget Hudson bay and the great lakes
Great map of all the Land Craters. That leaves over 70% unexplored...
Everything on the seafloor (including impact craters) that is older than 200 million years has already been recycled unfortunately.
Another Saffa here! The Vredefort Dome site is truly huge, and VERY old. If ever you travel to South Africa, this is a must see! Many example of ejected matter, and other features still exist to see, even after such a long time!
Great video!
Can’t wait to see Joe Rogan freak out about this video
Hes definitely smoking a fat one waxing his bald head thinking to himself "how can i incorporate this into my podcast"
@@thatonescrambler Probably trying to think of which alt-right crackpot to bring on the show next to spread conspiracies about it with.
“Hey Jamie…”
This puppy's take: the universe really doesn't care whether we live or die.
Thank you so much for sharing all these valuable information. Best regards from Panama 🇵🇦
7:42 Oh wow, I've been to Kara-kul and had no clue it was an impact site. Makes sense now actually given the size of the impact, the lake itself isn't small but it feels that way because of scale of the flat valley and mountains surrounding it - turns out the whole thing is a dent in the mountain range from a meteor. Mindblowing. Really loved this video, thanks.
Well done !
Can you make a video of the largest non verified/ proposed impacts?
Great video! No BS, just facts! I'll have to check what else you've touched on. Fantastic! Keep up the great work. 👍🏻👍🏻👍🏻👍🏻👍🏻
I'm surprised you don't have Hiawata crater in Greenland represented on the map? It's about 35 Km wide.
A number of years ago, I queried a geologist who specialized in impact craters, and asked him if Hudson's Bay was one, based on the circular dimensions. He said YES, it is, noting they found shocked quartz around and in the formation. And yet, it is not listed on any indexes that I could find.
Maybe the quartz was shocked by gas prices...?🤔
It's a coverup. Some geologists get very defensive over this.
I noticed the omission, as well...pretty obvious, circular pattern
..
Fun and instructive. Congratulations ,Planetary and Space Science Centre.
This was really good!
Why doesn't any scientists acknowledge the Hudson bay crater on the south eastern shore? You can clearly see the round shore line and the island pushups off shore.
Because it’s no longer thought to be an impact crater, you think they don’t know their job?
The islands (Belcher Islands) are sandbars.
I think it was glaciers that made it like that though it does look like it would be a crater
6:47 they took “an asteroid can’t strike twice in the same place” to a whole new level
Awesome video, my man.
That was very interesting and fun to learn about! Thank you!
oi what have you done to New Zealand with the map :(
So so sorry. But no confirmed craters there in the impact database and I wanted to maximize the zoom level. Can we blame the active landscape there and the map projection?
Great now I’m gonna be terrified for the next month or two. Fuk you very much for presenting this so articulately with undeniable visual references. To be clear, we are doomed right? So Elon has the right idea?
I'm so sorry, but I couldn't stop laughing while reading this comment 😁
I'm in! I love maps. I love space stuff......and stuff from space, even when it's been gifted to us at a crazy speed (as long as I'm not under it). I also love information being presented in a much more visual style. Subbed!
I'm glad this channel got noticed by the algorithm. OzGeographics is another favorite, but its geography based, though it does have a lot of vids on impact craters.
Another channel you might like is GeologyHub. He's done a lot of videos on impact craters, as well as other topics.
Excellent presentation!
But christians say the earth is 6k years old.....
They're wrong. It's 4.5 billion years old.
That's what happens when you believe in book that was written by people with very limited knowledge about their world
You say that as if Christianity is the only religion that believes that
Thank you for this interesting perspective of earth at the receiving end of meteors.
Nice work. Had no idea there were so many still visible.
Great video. Thanks! ❤
Thanks! This was very intersting!
One thing I have noticed as very lucky is all these impacts missed the viewing platforms and souvenir shops.
beautiful video!!
I thought this was a very informative video, I knew there were quite a few extant and visible craters around the world, but to get good photos of them and the data of their size and age was great!
What a brilliant channel I have found here wow
AWESOME VIDEO
Great presentation.
Very nice.
One could make endless great videos on this theme.
Well not quite endless,
because sooner or later we gonna take a hit from one of them.
Great video! One other popular impact crater, but too far north to be seen on this map, the Hiawatha impact crater in northern Greenland. It impacted when Greenland was green with forests.
Thanks for the video very, very informative.I never knew that there were so many crater impacts. In another sense It gets you nervous to know that it's not as unusual as we think.
Fascinating.
Actual knowledge thank you
nice, thank you
Now that’s pretty awesome
Brilliant - for the Earth's history.
I'm amazed at how many craters at northern latitudes are still visible despite having experienced several glaciation cycles.
The glaciation made them more visible by scraping away overburden.
That was cool. Thank you.
Brilliant video and channel - subbed.
6:43 - - For the cathedral in the center of the town, built in the Middle Ages, the rock used in the walls is typical for the meteoric impacts.
EXCELLENT!
excellent
As someone from Sudbury i had no idea we were in an i.pact crater that big, i knew there were craters and thats why the nickel mining was so big but not like that. Small anecdote about sudbury, Nasa used to test their lunar rovers here because the landscape is so similar to that of the moon! :)
Astonishing, only wishing it was longer, a true genius ❤
6:43, Ries Crater: Also worth mentioning is that the astronauts of Apollo 14 were taught here how to investigate and recognize the geological features of meteor craters. :)
Thank you
Fascinating.❤
well done!
Ph d. Quality just amazing
Nice!
I've been to the Douglas Craters. Very cool.
Very interesting.
Great video, thanks! I work in airborne gravity surveys and I was sure we found a buried roughly 8km diamater crater in West Africa. But our geologists reckoned it's an eroded circular intrusion. Sadly we never had a chance to go there and see if we could find tell-tale impact geology.
Cool video, cheers 👍
Amazing!
Thanks!