My mind is completely blown by the number of impact craters discovered over the past ten years as a result of recent scientific advances to detect them. So glad that NASA and other space agencies around the world are actively working on preventing a future extinction level event.
Yes! I feel like we're all waiting for the next rock to drop. It's not as though the utter vastness and strangeness of our particular universe doesn't keep me humble. But what with hurtling toward catastrophic climate change, waiting for the next atmosphere-altering volcano to blow or cosmic impact, I am constantly reminded how fragile civilization and even the existence of life on our planet is. No wonder we don't hear from aliens! Life may be arising on untold trillions of planets only to be repeatedly wiped out by unavoidable disasters. Or stupidity.
Politics will guarantee our extinction in case of a newly discovered killer asteroid, and it will be based on (drumroll) you guessed it!: STUPIDITY !!!
I lived in Marathon, Ontario for a year, which is about 30 to 35 kilometers east of the Slate Islands... never had any idea they were made by an asteroid...
I still think Hudson Bay is the site of yet another major impact at some point in Earth's history. The entire Eastern edge being so neatly circular has always intrigued me as well as the inner circularly oriented layers. If I'm not mistaken, Carl Sagan was in on this concept as well but I never heard any more about it.
The size is way too large unfortunately. The Arc in part of Hudson Bay most likely is an impact site from a long time ago though. Most of the area in Hudson bay was inundated by sea water after glaciers retreated! Albeit the crater on the arc is very large.
Unfortunately the geology doesn't support most impact scenarios(not for anything younger than the Archaean anyways that as it instead appears to be a thick old depositional basin formed within the remains of the ancient Trans Hudson Orogen which is the suture zone between the Churchill and Superior cratons back during the Paleoproterozoic. So if an impact is involved in its formation it must be very very ancient
Given the huge size of Hudson Bay, if it had been formed by a meteor impact, the devastation caused would have been devastating on a planetary scale, larger than the KT Chixculub impact which triggered the Cretaceous mass extinction. So this impact would have to coincide with a massive mass extinction event or be extremely ancient. This said, I recall reading that the circular shape was dubbed to be coincidental and not impact caused.
I've always thought this as well. Plus the fact that it is surrounded by the Canadian Shield. A region Rich with mineral deposits and just looks like a giant debris field.
@@garykleinsteuber4529 The Canadian Shield is an ancient Craton, a chunk of exposed Precambrian continental crust. The reason it looks the way it does is because it has been subject to billions of years of erosion.
The impacts occurred over a 3 million year period so one every 250,000 years if we count only the 12 mentioned. So none would have occurred during the existence of homo sapiens.
Well, chicken little was ridiculed by his peers, which is exactly what happen in our modern times if anyone has a serious theory about impact events, but today they are labelled "catastrophists" ir conspiracy theorists. Sad, very sad.
It was originally a massive flood basalt eruption over a billion years ago, located along a failure in the north American plate. Essentially in the distant past the continent that would become North America tried and failed to split apart. The basalt basically weighed down the earth and created a natural basin for glaciers to flow into in the 'recent' past. And apparently it's home to an asteroid impact just as a cherry on top
The relatively lower population on its shores compared with the other Great Lakes might have something to do with it. Lake Superior is home to just 600,000 people. Every other Great Lake has well over a million in population, despite all being smaller than Superior
@@starwall8755 I miss Lake Superior because I worked on big ore carrying boats are the Great Lakes and visited several ports on that and other lakes for a couple years.
I can't say thank you enough for this video. The Slate Islands are remarkably beautiful, and visits there sparked my curiosity about geology. Understanding more about how they formed makes the Slates that much more of a special place.
Any chance or rather any interest in doing one of these videos regarding the Charity Shoal anomaly in Lake Ontario? It is also speculated to be a massive Ordovician age impact crater. Would be interesting if there is any such correlation to impact craters in the Great Lakes, forming the groundwork for the lake beds themselves.
Thanks! With the Ordovician meteor event, The Andean-Saharan glaciations, the possible Ordovician Age of the Deniliquin impact structure and other, much less likely factors such as a Gamma Ray-Burst, it is not surprising that the Late Ordovican Extinction event was the second most devastating extinction event known in Earth's History!
the area of Saginaw Bay in Lake Huron is also thought to have been formed by in impact crater that scoured out a great deal of earth from the surface and helped define the shore of the lake. but it was a more recent event.
Fascinating! Have you heard of the Siljan crater lake in Sweden? Really beautiful location and very crater like, despite being over 300 million years old.
The Ordovician meteor event is really a fascinating incident in our planets "recent" geological history and the solar system as a whole. One point that could have been made more clear is how we have constrained the timing of the impact to 468 ± 0.3 Ma which has to do with dating the shock metamorphosed grains in L Chondrites. It should also be noted there is an interesting hypothesis based off the results of the Kepler transit observations which notes that comparable exoplanetary impacts like this event generate huge amounts of dust and debris which analyses shows is potentially sufficient to explain the sudden onset of the Ordovician age Andean Saharan ice age. This is supported by the spike in the number of fossil meteorites in sedimentary layers such as limestone as well as the detection of elevated levels of siderophile elements like Osmium as well as the rare on Earth Helium isotope He 3 which suggests a significant increase in undifferentiated extraterrestrial material more so than the known impact crater events can account for. It makes a whole lot of sense to me based on my familiarity with the transit observations of exoplanetary analog impacts and the resulting collisional cascades that propagate though the planetary disk. Though some earth scientists remain skeptical though I gather from some of their confusing cometary that they are generally misunderstanding what the paper was talking about i.e. cosmic dust intervening between the Sun and Earth as it falls inwards towards the Sun not dust in Earth's atmosphere. It's a very important distinction.
Check out the Can-Am structure under southern Lake Huron. I's an odd circular structure on magnetics, but as far as I have found nobody has checked it out to figure out what it is, probbaly because of location related difficulty.
Could you do a video about the Popigai impact crater in Siberia, Russia? It may have been formed at the same time as the impact crater in Chesapeake Bay and both might have caused the Eocene-Oligocene extinction event.
Ames crater! So…we think we identified another straggler to that event a little to the east in Payne County. There is an oblique looking feature that has an unusually thick Silurian and Devonian section with a ring and central ‘bump’. It’s just a little side note but we talked about it all the time.
Great video! Until now I hadn't heard of this Ordovician meteor event. I remember looking at a map showing impact craters and I never put together the fact that the ages were so close and geographically near each other. I've lived around the great lakes my entire life and I thought I had heard of every crater around here so it surprised me that those islands are a remnant of a central peak. Tha more ya know!
A few of things I'm interested to know more about: 1) How is it known / theorised that these impacts were caused by a collision of 2 large asteoids in the asteroid belt? Is it related to the debris from the collision impacting Earth over a 40M year period? 2) Is the straight line alignment of the impact craters during the Ordovician known from other sources, or is it presumed based on the age of the craters, i.e. are collections of similarly aged impact craters used to determine how continents were arranged when the craters were formed? 3) Since the craters were formed over a few million years, is it less significant that they were formed along a line. Would the impact craters not tend to be more randomly distributed?
2-3) the linear alignment of the impacts can be explained by the debris forming a nearly linear train of meteors in space. Those alignments can be explained by the long term effects of planetary gravity over a spread out number of asteroid debris. They could also be explained by the bigger debris breaking up in the higher atmosphere and thus spreading on a line just before impact. This said, not all Ordovician meteor event impacts are aligned, only the biggest. The smaller ones are found all over the globe.
Awesome vid :D curious about Drakes Passage area. Is it me or does it look like multiple craters/calderas on the Scotia Plate? Keep up the kick ass content :D
What about the Douglas, Wyoming impact crater? Its near Sheep Mountain in the Laramie Range, and is extremely ancient. Edit: it is called the Douglas crater field in the Sheep Mountain Anticline of the Laramie Range in East Central Wyoming. Craters in the field range in size from 50-260 foot diameter impact craters that age back 280 million years.
Here in North Carolina, many of us NC natives have often heard that the Carolina Bays in the Eastern part of the state were formed by "splatter debris" from an impact in Canada. Material flung almost out of the atmosphere which re-entered and struck forming these oval lake basins roughly aligned towards Canada. What do you think about that theory Geology Hub??
I do not believe that the Carolina Bays are impact related. There used to be a debate around this topic, but no conclusive evidence pointing towards an impact origin has ever been found. Only very weak circumstantial evidence.
I remember as a kid in the 1950's. The impression given was that the Earth's atmosphere protected from most if not all impacts, and that's why there are so few remaining craters. Obviously not true.
Awesome channel. Thanks for the great video! Oh, are Europe & North America moving away from each other at about 10 centimeters per year? I wonder if I am accurately remembering something that I read 20 years ago. Perhaps you might make a video about that and the mid Atlantic spreading zone or ridge and its volcanoes?
Possible theory on the crater formation. Chuck Norris was on a family holiday at the age of 4 and did his first cannonball dive. Before this event there was only one Great Lake now we have five.
Lake Ontario also contains evidence of a meteor strike, in the form of fissures. It is thought they were formed when a meteor struck the north American ice sheet something like 10kya, causing the Younger Dryas period, a return to ice age conditions.
I discovered, not far from Washington DC, a small impact crater probably dating back to right after the last glacier retreated. I don't know who to report it to. USGS, maybe ?
I would be cautious about drawing an inference from the apparent straight line path of these craters across the globe. First, how much continental drift has occurred since? The alignment we see today could be the coincidental result of just that process, where a previous scatter has been brought into some alignment. Second, a real linearity from a number of related impactors would imply breakup of the parent body no more than some number of weeks before. The gradual dispersion over months, let alone years, would have the bodies arriving in a more haphazard pattern. Not only in space, but also in time. Consider the 1994 Conet Shoemaker-Levy collision with Jupiter as an example.
This makes no sense because Lake Superior was under two miles of glacial ice until about 10,000 years ago, the glaciers literally dug out the Great Lakes so any impact site from before the glaciers would’ve been completely destroyed.
Lake Superior itself in the USA was formed by the impacts of two giant asteroids arriving from the Southwest side. Also, lakes Nipigon, Huron and Michigan were formed by the impacts of giant asteroids. Watch a film about the formation of the Great American Lakes from the impacts of giant asteroids. Great American ASTEROID LAKES. Asteroids of America part 4, episode 13 th-cam.com/video/BtD6vuxDK1o/w-d-xo.html Само озеро Верхнее в США образовано ударами двух гигантских астероидов прилетевших с Юго- Западной стороны. Также, озёра Нипигон, Гурон и Мичиган образованы ударами гигантских астероидов. Смотрите фильм про образование Великих Американских озёр от ударов гигантских астероидов. Великие Американские АСТЕРОИДНЫЕ озёра. Астероиды Америки 4 часть, 13 серия th-cam.com/video/BtD6vuxDK1o/w-d-xo.html
Dear@gryph01, The Ice Age on Earth is an erroneous hypothesis; the Ice Age on Earth did not exist in the form in which some scientists imagine it. The Ice Age was invented precisely to explain the formation of the Earth's topography by moving glaciers, but in fact, even when the entire Earth freezes, glaciers move only from high to low elevations, and not from north to south, over a flat area. Glaciers can move from the mountains and fall down, but if the Earth is naturally glaciated, there will be no movement of glaciers. The Earth froze after giant ice comets fell to the Earth, the nuclei of which even pierced the Earth right through, and ice debris and fragments remained stuck in the Earth, forming a permafrost zone on the surface of the Earth, especially in Russia, and where the climate was warm, artesian pools were formed. Watch the films of my series, where everything is described in detail about the formation of the planet’s topography from the impact of global and giant asteroids on the Earth, some of which pierced the Earth right through. All the best Астероидная катастрофа Пермского вымирания. 41 серия сериала th-cam.com/video/wP-CzGJKN04/w-d-xo.html Астероидный волейбол сквозь Землю. 42 серия сериала th-cam.com/video/C4CMY7hEtbA/w-d-xo.html Asteroids and Earth Fiction and truth 2 series of the series, How asteroids pierced the Earth through and through th-cam.com/video/Rkbgy1pmb44/w-d-xo.html
I don't want to do a dissertation on this event. I would like to stress the fact that the lakes were not formed until well after the Ordovician era. In the same way that the American continent wasn't truly the American continent until well after the Ordovician era. The craters did have about 470,000,000 years of erosion, not to mention about 10 miles worth of ice pressing down and grinding on them. I believe the last Ice Age did the most damage to that region and is what is responsible for filling the lakes up. I would say snowball or earth did the most damage to it, but snowball Earth happened about 150,000,000 years prior to the Ordovician. Other than leaving out some of the facts that I thought should have been put in I thought it was a good video.
Given that its shape is an inverted relief I think its more the case that the islands exist because the impact induced compression/remelting altered the underlying rocks to have a more chemically integrated mineral structure than the rest of what had been loosely bound sedimentary rocks that filled in old Mesoproterozoic rift lakes and thus allowed the rock to resist erosion more readily than the surrounding sedimentary rocks.
If it were not for the planet Jupiter Earth would have many more impact craters. Jupiter's gravity field is so strong it acts like a vacuum cleaner sucking up asteroids.
But they may not realize that underneath the lake lays an enormous rift that almost tore North America apart about 1.1 billion years ago, long before dinosaurs roamed the earth.
The dating results are in on the the age of recent turkey earthquake scarp and 2.5 million years ago it actually occurred although over 50 thousand parish. It looks like the Colorado Plato that happened how many millions of years ago.
As our planet traverses the Milky Way it occasionally will come close enough to another start to perturb the ort cloud. This is one mechanism that is believed to cause an _short term_ increase in large impact events.
Not really, that is like saying we are do for a volcanic eruption. Remember the human population on earth is REAL YOUNG compared to earth..a big ass crater could have already happened and didn't know about it in human terms.
Let me see here. The moon is covered with impact craters. So, why wouldn't we have impact craters. Of course we do. However, the Eart also has weather and nature that can hide them!
That is a good question but it might not be as big of a problem as you might think since that line primarily relates to the paleocontinents Laurentia and Baltica which due to the two continents having been connected during the assembly of Pangaea ~300 Ma to the break up of Laurasia 56 Ma and the formation of the North Atlantic. Still that is a sizable amount of time that must be accounted for
*I LIVE ON THE BIG ISLAND OF HAWAII, PLEZ-Z-Z WOULD YOU DO A PROGRAM SHOWING THE BULK OF THE EARTHQUAKE FAULT SYSTEMS FER THE ENTIRE ISLAND OF HAWAII, ALONG WITH THOZE OF THE SURROUNDING AREA WHICH WOULD AFFECT THEM* 😻😻😻‼️‼️‼️
@@drteknical6571 *I'M 69 DISABLED AND VISUALLY IMPAIRED THAT'S WHY I USE ALL CAPS ON MY ONE AND ONLY DEVICE A CHEAP VERIZON ANDROID PHONE, WHICH HAS A VERY SMALL TYPING BOARD AND SCREEN.*
38.1788758, -85.1196764 Jeptha Knob. The Kentucky historical marker at its base calls it a "cryptovolcanic structure", but it is now believed to be the result of an asteroid impact some 425 million years ago. Iridium apparently has been found in anomalously high levels in breccias associated with the structure. ~ Wikipedia
My mind is completely blown by the number of impact craters discovered over the past ten years as a result of recent scientific advances to detect them. So glad that NASA and other space agencies around the world are actively working on preventing a future extinction level event.
Vesta is groovy.
This is not a new discovery
Yes! I feel like we're all waiting for the next rock to drop.
It's not as though the utter vastness and strangeness of our particular universe doesn't keep me humble. But what with hurtling toward catastrophic climate change, waiting for the next atmosphere-altering volcano to blow or cosmic impact, I am constantly reminded how fragile civilization and even the existence of life on our planet is. No wonder we don't hear from aliens! Life may be arising on untold trillions of planets only to be repeatedly wiped out by unavoidable disasters. Or stupidity.
Politics will guarantee our extinction in case of a newly discovered killer asteroid, and it will be based on (drumroll) you guessed it!: STUPIDITY !!!
I lived in Marathon, Ontario for a year, which is about 30 to 35 kilometers east of the Slate Islands... never had any idea they were made by an asteroid...
You picked a good time to visit! Only 400 million years sooner and you'd have been in big trouble.
Marathonian here!!!
Love learning about how the unique landscape around here was made!
I still think Hudson Bay is the site of yet another major impact at some point in Earth's history. The entire Eastern edge being so neatly circular has always intrigued me as well as the inner circularly oriented layers. If I'm not mistaken, Carl Sagan was in on this concept as well but I never heard any more about it.
The size is way too large unfortunately. The Arc in part of Hudson Bay most likely is an impact site from a long time ago though. Most of the area in Hudson bay was inundated by sea water after glaciers retreated! Albeit the crater on the arc is very large.
Unfortunately the geology doesn't support most impact scenarios(not for anything younger than the Archaean anyways that as it instead appears to be a thick old depositional basin formed within the remains of the ancient Trans Hudson Orogen which is the suture zone between the Churchill and Superior cratons back during the Paleoproterozoic. So if an impact is involved in its formation it must be very very ancient
Given the huge size of Hudson Bay, if it had been formed by a meteor impact, the devastation caused would have been devastating on a planetary scale, larger than the KT Chixculub impact which triggered the Cretaceous mass extinction. So this impact would have to coincide with a massive mass extinction event or be extremely ancient.
This said, I recall reading that the circular shape was dubbed to be coincidental and not impact caused.
I've always thought this as well. Plus the fact that it is surrounded by the Canadian Shield. A region Rich with mineral deposits and just looks like a giant debris field.
@@garykleinsteuber4529 The Canadian Shield is an ancient Craton, a chunk of exposed Precambrian continental crust. The reason it looks the way it does is because it has been subject to billions of years of erosion.
Fantastic video. We would all be chicken little if we were alive during these multiple asteroid Ordovician events.
It’s an amusing thought. A weird what if scenario which could work well for science fiction.
The impacts occurred over a 3 million year period so one every 250,000 years if we count only the 12 mentioned. So none would have occurred during the existence of homo sapiens.
Well, chicken little was ridiculed by his peers, which is exactly what happen in our modern times if anyone has a serious theory about impact events, but today they are labelled "catastrophists" ir conspiracy theorists. Sad, very sad.
Lake Superior is so beautiful....
Always wondered why it is so different than the other lakes.
It was originally a massive flood basalt eruption over a billion years ago, located along a failure in the north American plate. Essentially in the distant past the continent that would become North America tried and failed to split apart. The basalt basically weighed down the earth and created a natural basin for glaciers to flow into in the 'recent' past. And apparently it's home to an asteroid impact just as a cherry on top
@@starwall8755 Not to mention being scoured and excavated several times by glaciers.
@@michaeldeierhoi4096 a strange lake indeed
The relatively lower population on its shores compared with the other Great Lakes might have something to do with it. Lake Superior is home to just 600,000 people. Every other Great Lake has well over a million in population, despite all being smaller than Superior
@@starwall8755 I miss Lake Superior because I worked on big ore carrying boats are the Great Lakes and visited several ports on that and other lakes for a couple years.
I can't say thank you enough for this video. The Slate Islands are remarkably beautiful, and visits there sparked my curiosity about geology. Understanding more about how they formed makes the Slates that much more of a special place.
Any chance or rather any interest in doing one of these videos regarding the Charity Shoal anomaly in Lake Ontario? It is also speculated to be a massive Ordovician age impact crater. Would be interesting if there is any such correlation to impact craters in the Great Lakes, forming the groundwork for the lake beds themselves.
Thanks for once again covering asteroids that landed in Canada 🇨🇦.
From Wisconsin - thanks, didn’t know that. Just another reminder that geology is very interesting everywhere!
Such great great TH-cam content, sir! Thank you!!
Thanks for covering this one!
Thanks! With the Ordovician meteor event, The Andean-Saharan glaciations, the possible Ordovician Age of the Deniliquin impact structure and other, much less likely factors such as a Gamma Ray-Burst, it is not surprising that the Late Ordovican Extinction event was the second most devastating extinction event known in Earth's History!
Great video. I would enjoy seeing more like this. Thanks.
the area of Saginaw Bay in Lake Huron is also thought to have been formed by in impact crater that scoured out a great deal of earth from the surface and helped define the shore of the lake. but it was a more recent event.
That was an enjoyable presentation.
I love this stuff! Thanks for the amazing pictures and knowledge of a spectacularly cataclysmic period in earth's history. New sub.
Fascinating! Have you heard of the Siljan crater lake in Sweden? Really beautiful location and very crater like, despite being over 300 million years old.
Thank you for your information videos. They are so interesting. Keep up the good work! 💖💫😊
The Ordovician meteor event is really a fascinating incident in our planets "recent" geological history and the solar system as a whole. One point that could have been made more clear is how we have constrained the timing of the impact to 468 ± 0.3 Ma which has to do with dating the shock metamorphosed grains in L Chondrites.
It should also be noted there is an interesting hypothesis based off the results of the Kepler transit observations which notes that comparable exoplanetary impacts like this event generate huge amounts of dust and debris which analyses shows is potentially sufficient to explain the sudden onset of the Ordovician age Andean Saharan ice age. This is supported by the spike in the number of fossil meteorites in sedimentary layers such as limestone as well as the detection of elevated levels of siderophile elements like Osmium as well as the rare on Earth Helium isotope He 3 which suggests a significant increase in undifferentiated extraterrestrial material more so than the known impact crater events can account for.
It makes a whole lot of sense to me based on my familiarity with the transit observations of exoplanetary analog impacts and the resulting collisional cascades that propagate though the planetary disk. Though some earth scientists remain skeptical though I gather from some of their confusing cometary that they are generally misunderstanding what the paper was talking about i.e. cosmic dust intervening between the Sun and Earth as it falls inwards towards the Sun not dust in Earth's atmosphere. It's a very important distinction.
Awesome. We need more meteors.
Check out the Can-Am structure under southern Lake Huron.
I's an odd circular structure on magnetics, but as far as I have found nobody has checked it out to figure out what it is, probbaly because of location related difficulty.
Could you do a video about the Popigai impact crater in Siberia, Russia? It may have been formed at the same time as the impact crater in Chesapeake Bay and both might have caused the Eocene-Oligocene extinction event.
Ames crater! So…we think we identified another straggler to that event a little to the east in Payne County. There is an oblique looking feature that has an unusually thick Silurian and Devonian section with a ring and central ‘bump’. It’s just a little side note but we talked about it all the time.
Excellent video, thanks!
That moment when Geology and Astrophysics crosses over is a lot more blurry than I thought.
New crater of Ordovician age discovered recently in Victoria / New South Wales Australia. 320 miles across.
That circle in the Hudson Bay gotta be an impact crater
Great video! Until now I hadn't heard of this Ordovician meteor event. I remember looking at a map showing impact craters and I never put together the fact that the ages were so close and geographically near each other. I've lived around the great lakes my entire life and I thought I had heard of every crater around here so it surprised me that those islands are a remnant of a central peak. Tha more ya know!
I have been to the Slate islands. It’s amazingly beautiful. And the shatter cones on the north shore are just wild.
Had to back up, on your videos, to give my support!
Slate Island have many examples of shatter cones, some gigantic, others smaller. Planar deformation features in quartz also confirm the impact site.
Fascinating stuff!!
A few of things I'm interested to know more about:
1) How is it known / theorised that these impacts were caused by a collision of 2 large asteoids in the asteroid belt? Is it related to the debris from the collision impacting Earth over a 40M year period?
2) Is the straight line alignment of the impact craters during the Ordovician known from other sources, or is it presumed based on the age of the craters, i.e. are collections of similarly aged impact craters used to determine how continents were arranged when the craters were formed?
3) Since the craters were formed over a few million years, is it less significant that they were formed along a line. Would the impact craters not tend to be more randomly distributed?
2-3) the linear alignment of the impacts can be explained by the debris forming a nearly linear train of meteors in space. Those alignments can be explained by the long term effects of planetary gravity over a spread out number of asteroid debris. They could also be explained by the bigger debris breaking up in the higher atmosphere and thus spreading on a line just before impact.
This said, not all Ordovician meteor event impacts are aligned, only the biggest.
The smaller ones are found all over the globe.
thanks for the information
Awesome vid :D curious about Drakes Passage area. Is it me or does it look like multiple craters/calderas on the Scotia Plate? Keep up the kick ass content :D
Could you cover The Rock Elm impact crater in Wisconsin?
As a Canadian I am still salty about the US getting one whole great lake to themselves. At least give us Lake Ontario or Lake of the Woods.
Your consolation prize was Georgian Bay! Now quit gripping! 😅😂
Perhaps we can return William Shatner as compensation.
Great slave lake and Great bear lake are yours
Trade you one hudson's bay for one great lake and you take back justin Bieber
The hakenkrueze in a white field
What about the Douglas, Wyoming impact crater? Its near Sheep Mountain in the Laramie Range, and is extremely ancient.
Edit: it is called the Douglas crater field in the Sheep Mountain Anticline of the Laramie Range in East Central Wyoming. Craters in the field range in size from 50-260 foot diameter impact craters that age back 280 million years.
Thanks for alerting me to this field... Ive not heard of it. Lifelong Wyoming resident and fascinated with our geology here!
Thanks!
I’m glad that you enjoyed this video! Have any requests? I highly appreciate your continued support, pon2oon! :D
@@GeologyHub I'd like you to do a video of how the northern portion of Michigan, has some of the most diverse mix of rocks in the world.
Here in North Carolina, many of us NC natives have often heard that the Carolina Bays in the Eastern part of the state were formed by "splatter debris" from an impact in Canada. Material flung almost out of the atmosphere which re-entered and struck forming these oval lake basins roughly aligned towards Canada. What do you think about that theory Geology Hub??
I do not believe that the Carolina Bays are impact related. There used to be a debate around this topic, but no conclusive evidence pointing towards an impact origin has ever been found. Only very weak circumstantial evidence.
I disagree. Antonio Zamora has done extensive work demonstrating why the Carolina Bays were almost certainly formed as conical ejection funnels.
@@GeologyHub Thanks!! I really enjoy your channel!
Thank you.
Charity Shoal crater is cool though below water. Should do something on this.
I remember as a kid in the 1950's. The impression given was that the Earth's atmosphere protected from most if not all impacts, and that's why there are so few remaining craters. Obviously not true.
Awesome channel. Thanks for the great video! Oh, are Europe & North America moving away from each other at about 10 centimeters per year? I wonder if I am accurately remembering something that I read 20 years ago. Perhaps you might make a video about that and the mid Atlantic spreading zone or ridge and its volcanoes?
Possible theory on the crater formation. Chuck Norris was on a family holiday at the age of 4 and did his first cannonball dive. Before this event there was only one Great Lake now we have five.
These stories leave me feeling so small and helpless 🥺
Thank you 🙏 🌋 🙏
Lake Ontario also contains evidence of a meteor strike, in the form of fissures. It is thought they were formed when a meteor struck the north American ice sheet something like 10kya, causing the Younger Dryas period, a return to ice age conditions.
There appears to be a crater near the headwaters or the St. Lawrence river under Lake Ontario.
I discovered, not far from Washington DC, a small impact crater probably dating back to right after the last glacier retreated.
I don't know who to report it to. USGS, maybe ?
@@brionfranks478 how do you know the feature in question is an impact crater? Feel free to email me.
200 miles west of Sitka Alaska similar features.
I would be cautious about drawing an inference from the apparent straight line path of these craters across the globe.
First, how much continental drift has occurred since? The alignment we see today could be the coincidental result of just that process, where a previous scatter has been brought into some alignment.
Second, a real linearity from a number of related impactors would imply breakup of the parent body no more than some number of weeks before. The gradual dispersion over months, let alone years, would have the bodies arriving in a more haphazard pattern. Not only in space, but also in time. Consider the 1994 Conet Shoemaker-Levy collision with Jupiter as an example.
Would be interesting to consider the impact of this event on Mars current state of existence
Was that crater too large to be scored smooth by the glaciers?
This makes no sense because Lake Superior was under two miles of glacial ice until about 10,000 years ago, the glaciers literally dug out the Great Lakes so any impact site from before the glaciers would’ve been completely destroyed.
I wrote a paper on this over 20 years ago and I was laughed off the face of the Earth by all the "experts".
There is one in lake Ontario north of Oswego.
Lake Superior itself in the USA was formed by the impacts of two giant asteroids arriving from the Southwest side.
Also, lakes Nipigon, Huron and Michigan were formed by the impacts of giant asteroids. Watch a film about the formation of the Great American Lakes from the impacts of giant asteroids.
Great American ASTEROID LAKES. Asteroids of America part 4, episode 13
th-cam.com/video/BtD6vuxDK1o/w-d-xo.html
Само озеро Верхнее в США образовано ударами двух гигантских астероидов прилетевших с Юго- Западной стороны.
Также, озёра Нипигон, Гурон и Мичиган образованы ударами гигантских астероидов. Смотрите фильм про образование Великих Американских озёр от ударов гигантских астероидов.
Великие Американские АСТЕРОИДНЫЕ озёра. Астероиды Америки 4 часть, 13 серия th-cam.com/video/BtD6vuxDK1o/w-d-xo.html
The Great Lakes were formed after the last ice age.
Dear@gryph01, The Ice Age on Earth is an erroneous hypothesis; the Ice Age on Earth did not exist in the form in which some scientists imagine it. The Ice Age was invented precisely to explain the formation of the Earth's topography by moving glaciers, but in fact, even when the entire Earth freezes, glaciers move only from high to low elevations, and not from north to south, over a flat area.
Glaciers can move from the mountains and fall down, but if the Earth is naturally glaciated, there will be no movement of glaciers. The Earth froze after giant ice comets fell to the Earth, the nuclei of which even pierced the Earth right through, and ice debris and fragments remained stuck in the Earth, forming a permafrost zone on the surface of the Earth, especially in Russia, and where the climate was warm, artesian pools were formed.
Watch the films of my series, where everything is described in detail about the formation of the planet’s topography from the impact of global and giant asteroids on the Earth, some of which pierced the Earth right through.
All the best
Астероидная катастрофа Пермского вымирания. 41 серия сериала
th-cam.com/video/wP-CzGJKN04/w-d-xo.html
Астероидный волейбол сквозь Землю. 42 серия сериала
th-cam.com/video/C4CMY7hEtbA/w-d-xo.html
Asteroids and Earth Fiction and truth 2 series of the series, How asteroids pierced the Earth through and through
th-cam.com/video/Rkbgy1pmb44/w-d-xo.html
Always tough that in canada hudson bay Qikiqtaaluk, NU was also a crator.
Your tough on it ? Can it be possible ?
Since you in the "area" any thoughts on the Lake Superior underwater anomaly just north of Isle Royale or is that nothing in particular?
Probably glacial or a typographical mapping error
I don't want to do a dissertation on this event. I would like to stress the fact that the lakes were not formed until well after the Ordovician era. In the same way that the American continent wasn't truly the American continent until well after the Ordovician era. The craters did have about 470,000,000 years of erosion, not to mention about 10 miles worth of ice pressing down and grinding on them. I believe the last Ice Age did the most damage to that region and is what is responsible for filling the lakes up. I would say snowball or earth did the most damage to it, but snowball Earth happened about 150,000,000 years prior to the Ordovician. Other than leaving out some of the facts that I thought should have been put in I thought it was a good video.
This just reminded me of Blake Superior, from Foster's .
Lake Michigan and Lake Huron resemble an Impact crater
The richat structure looks like those photos of impact craters but isn't one. That's why alot of people like myself believe it was once Atlantis.
Oh hey, we were just up there.
As someone who grew up along Lake Superior… my education sucked.
I have noticed a coincidence between extinction events and the birth of stars within 100 LY.
Where did the meteors from this event come from ?
Any large shatter cones in rocks surrounding the impact's central peak?
I believe the entire state of lower Michigan is a old impact crater!
Well, something enormous occurred about 12,000 years ago
Is there any estimate for the total mass of asteroids that have hit Earth?
Wait the impact was over one MILLION Megatons of TNT? 1.1 TERAtons? I'm not sure that that's incorrect but it seems very high.
I was wondering about that too. It is within the realm of possibility.
It all ended with a big BANG!
Well....over 97 TRILLION pounds hitting the earth at a speed of 10.5 miles per SECOND? Not exactly a calm event. 😳
You would think all the ice ages would have wiped those islands away.
Ice age wasn't a uniform huge icesheet, and it might of been bigger even if it was and did carve parts of it off.
Given that its shape is an inverted relief I think its more the case that the islands exist because the impact induced compression/remelting altered the underlying rocks to have a more chemically integrated mineral structure than the rest of what had been loosely bound sedimentary rocks that filled in old Mesoproterozoic rift lakes and thus allowed the rock to resist erosion more readily than the surrounding sedimentary rocks.
If it were not for the planet Jupiter Earth would have many more impact craters. Jupiter's gravity field is so strong it acts like a vacuum cleaner sucking up asteroids.
Have you seen the Albion Zodiac? 🤔
Interesting but its speculation based on previous speculations....
Why wouldn't the Earth's rotation have kept the impacts from alignment unless they all happened within half a day or so?
In half a day it didn’t turn much, and the meteor was probably already gravitationally locked
@@EperogiLimousine I thought he said it was over quite a time span though (as in years). Maybe I didn't hear correctly.
But they may not realize that underneath the lake lays an enormous rift that almost tore North America apart about 1.1 billion years ago, long before dinosaurs roamed the earth.
The Gyser in Lake Superior! Prove me wrong! Proof? All the water!!!
The dating results are in on the the age of recent turkey earthquake scarp and 2.5 million years ago it actually occurred although over 50 thousand parish. It looks like the Colorado Plato that happened how many millions of years ago.
As our planet traverses the Milky Way it occasionally will come close enough to another start to perturb the ort cloud. This is one mechanism that is believed to cause an _short term_ increase in large impact events.
we are long due for a big ass crater making event. 6000years
Not really, that is like saying we are do for a volcanic eruption. Remember the human population on earth is REAL YOUNG compared to earth..a big ass crater could have already happened and didn't know about it in human terms.
Not true, and meteors don’t run on clocks
now look at the GULF OF MEXICO.... nice round impact zone and all those sandy beaches and lots of oil below Dino....
Let me see here. The moon is covered with impact craters. So, why wouldn't we have impact craters. Of course we do. However, the Eart also has weather and nature that can hide them!
Nothing compared to the massive destruction caused by asteroids on Uranus !!
the sky is falling, the sky is falling stay safe ALL
Kermit the frog finally had his balls drop...
The cataclysmic craters are piling up. Not literally
Hm wait does that asteroid impact line hold up when you take into consideration the paleogeography of the Earth during the late Ordovician?
That is a good question but it might not be as big of a problem as you might think since that line primarily relates to the paleocontinents Laurentia and Baltica which due to the two continents having been connected during the assembly of Pangaea ~300 Ma to the break up of Laurasia 56 Ma and the formation of the North Atlantic. Still that is a sizable amount of time that must be accounted for
*I LIVE ON THE BIG ISLAND OF HAWAII, PLEZ-Z-Z WOULD YOU DO A PROGRAM SHOWING THE BULK OF THE EARTHQUAKE FAULT SYSTEMS FER THE ENTIRE ISLAND OF HAWAII, ALONG WITH THOZE OF THE SURROUNDING AREA WHICH WOULD AFFECT THEM* 😻😻😻‼️‼️‼️
Thanks for shouting... not.
@@drteknical6571 *I'M 69 DISABLED AND VISUALLY IMPAIRED THAT'S WHY I USE ALL CAPS ON MY ONE AND ONLY DEVICE A CHEAP VERIZON ANDROID PHONE, WHICH HAS A VERY SMALL TYPING BOARD AND SCREEN.*
sound so bad I can't understand them.
Asteroid sees the Earth
"I want to hit that"
you crater to my tastes
@@1.4142 🤣🤣
Gravity makes everything want to hit everything else
'i found your mass irresistible'
Audio is crap…
Sorry, you have to learn geology again! These are not what we know.
The narrator has clogged sinuses!
So? Read CC and turn off the audio, we can’t do everything
I'm surprised the glaciers didn't completely destroy the crater.
38.1788758, -85.1196764 Jeptha Knob. The Kentucky historical marker at its base calls it a "cryptovolcanic structure", but it is now believed to be the result of an asteroid impact some 425 million years ago. Iridium apparently has been found in anomalously high levels in breccias associated with the structure. ~ Wikipedia