Randall Carlson has a series of YouTube videos up (about 17?) from a “class” he conducted some years ago. They vary in quality as some were well recorded and others had only audio, or nothing.
I’ve found them very interesting. His basic thesis is that there is a LOT of information pointing to a Younger Dryas impact field both in North America and around the world. (One of the big surprises for me was the South American mega-fauna extinction and impact sites).
I’m gong to post here his video about the huge number of woolly mammoth and rhino found in “muck” and permafrost largely in Siberia and other far north places. FWIW, my belief is that an impact into the ice field sent a giant Tsunami of ice slush over the north pole entombing these animals in very cold ice slush. Basically flash freezing them with chunks of 20 below ice in a froth of impact water.
Here’s his video. 42 minutes:
I think he does a pretty good job of showing the evidence for a major and catatrophic impact into the ice shield at the Younger Dryas. This is the 16th episode, so a lot of earlier ones are out there too.
IMHO, the Younger Dryas Impact Theory and those who Poo-Poo it is Yet Another Example of corrupted science where the “entrenched but wrong” use a variety of despicable methods to suppress the voices of those with better ideas. Lot of “attack the person” and not much of “examine the evidence”.
It is my belief also that such large impacts tend to set off a LOT of volcanic events (often on the other side of the planet due to refocusing the energy as it rounds the planet – antipodal focusing) so we end up with endless bickering about “impact vs volcanic” when the reality is “impact AND volcanic”.
Last time I brought up the impact event, on a challenge point, I’d said I didn’t know of any fires then. I did some quick looking into it, and in fact there IS a lot of evidence for some kind of global scale fire events as forest were ignited and burned. I’ve not done a decent enough dive on it to say anything beyond that, but it does look like it was “impact and fire”.
So it looks like we’d warmed out of the Ice Age Glacial, then got a major impact field over North America, South America, parts of Europe, and perhaps into the Pacific causing tsunami. Then a giant ice slush wave over the pole into Siberia, and a massive outbreak of forest fires. Then a big plunge back into the Glacial as the fires burned out. Talk abut your catastrophe.
This is coincident in time with the 12,000 – 14000 year ago evidence for a significant human civilization that collapsed and only recovered thousands of years later with the start of the Egyptian Empire history.
In short: We ought to be much more worried about stopping giant rocks from space than about burning oil.
FWIW, I have a lot of “things that piled up” in my posting ideas bucket, so I’m going to try to knock out a bunch of them without a lot of analysis and commentary, just so I can reduce the queue to something manageable.
I’ve been considering what might have happened 10-14kyrs ago for decades. Most of the theories put forward to explain these events conflict with things we think we know.
Certainly some impacts must have occurred, (a few hundred Tunguska events might explain the fires) but I have more questions than answers.
A few for example:
If mammoths, a subtropical species, were indeed widespread in the arctic region at this time (as it seems they were) then how could there be an ice sheet kilometers thick there as well for thousands of years before?
If the mammoths were killed by a flood of icy slush, where did that come from? Space?
Consider the Phaethon legend: Did something almost impact or graze Mars, draw off its water and transport much of it to Earth as ice comets?, Did it proceed to hit the sun and cause a massive CME, or even a mini nova?
Exactly how cold does it have to get to flash freeze a mammal that size fast enough that the food in its stomach is not digested? How can that happen?
I suspect you may have considered some of these questions. If you have the time I’d like to read what you think.
Yes EM it seems that something catastrophic happened in the Arctic. But there is only one problem with this hypothesis : Mammoths survived until about 5000 years ago on one of the islands in the Arctic ocean. If a meteor crashed into the Arctic and created . a wave of frozen slush how did these ones survive until much later on in time ?
@Bill in Oz:
You ever shoot water at someone in a swimming pool with a cupped hand?
An impact doesn’t need to make a wave covering a 180 degree arc… it can make a more focused surge or set of “run outs”.
WOOLY Mammoths. SubArctic species…
The ice sheet location was skewed to have much North American coverage, little in Siberia. They were grazing in a Siberian spring (as do animals today) when an impact sent a tsunami of slush over the arctic ocean to cover well inland Siberia (generally). Note the big tsunami from Indonesia caused havoc on the other side of the Indian Ocean. An impact event would make a wave hundreds of feet or even a mile high…
It can do the job in 9 hours, per the video. Given the squashed srate of the animals, I think it can be even faster. Temperature would be in the minus range, exactly how much varies with the guesser, but -20 to -80 are common. I think that has sellers puff in it as enzyme deactivation will happen before freezing.
Heat transfer into the ice would be low and it ought to arrive close to the starting temp. Look at avalanches, when in mostion they are fluid. Once stopped, it is like concrete at the original temp.
Yes I was told mammoths were sub arctic in school, it appears by location or remains they were pan arctic. Mainstream science implies they were also living in a climate similar to today’s subarctic. But it appears they would need a much warmer climate to provide enough food for such numbers year round.
Sorry, I apparently missed a slide or two of the video due to interruption. It says that mammoth was likely at a temperature of about 50 F or so when eating and that temperature dropped between 150-200F within ten hours.. This would suggest (from comment in video) frozen or liquid CO2 falling to earth, which could indeed freeze the mammoth quickly, maybe within a few hours. It also supports the transport of material from Mars hypothesis a little,.as Mars atmosphere today is mostly CO2. The more I think about it the more I like the Phaethon myth/legend.
There are two huge issues in any “transport from Mars” scenario:
1) Energy of the “lift” is so huge it will be unavailable, and if somehow it were applied, it would vaporize most things.
2) Energy of impact will vaporize it. You will not get dry ice at the surface, but hot CO2 vapor.
Gravity Wells are a harsh reality that keeps things on planets…
It says that mammoth was likely at a temperature of about 50 F or so when eating and that temperature dropped between 150-200F within ten hours..
I think it is a mistake to take that temperature change statement too literally. What they are estimating is the cooling rate, which is more properly measured by and easily achieved with wind chill.
Considering wind chill that cooling rate is not outside the realm of the possible even today.
For reference :
Lowest temperature record −79.8 °F (−62.1 °C) recorded in Prospect Creek, Alaska in 1971
(we have hit -60 degree temps here in modern day Colorado in the high country and below -30 deg F here in the Denver Metro area)
Largest temperature drop in one day in Denver Colorado 72 deg F
Looking at the Denver records the temperature dropped from 56 deg F to -15 deg F in about 48 hours. The same temperature drops would be easily achieved in the sub-arctic. Now add wind chill.
Suppose the animals were grazing on a grassy meadow in early September in a melt patch when a cold front moved in dropping the temperature from 56 deg F to -15 in a matter of hours (its possible I have seen similar temp drops happen first hand here in the Denver metro area), but add into that a fierce blizzard wind of about 60 -70 mph winds (also possible here – I have seen wind storms in the front range with sustained winds over 70 mph for 24 hours with peak winds of 110 just a couple miles from where I live today.
That nearly bare tundra would flash freeze with wind chills of about -57 deg F. Even a large animal would be frozen solid through and through in a matter of hours and core temperature would drop fast enough that all decomposition processes would stop in just 2 hours or so.
If that cold front was the precursor to an arctic blast that got down to -20 –30 F in 24 hours with continued high winds followed by heavy snow to bury the carcasses after they were fully frozen.
So although they are quoting temperatures of 150-200F what they are really saying is a “cooling rate equivalent to that temperature” not necessarily that actual still air temp.
Start that cold front arrival off with an hour or so of freezing rain followed by freezing drizzle to wet everything down and the animal would be encased in ice very quickly.
Given near ice age conditions where extremely cold air could plunge south off of the ice pack and snow fields and even more extreme cooling events are easily imagined.
When I was in 7th grade we went from 72 deg F and sunny to freezing drizzle and the high 20 deg F range between noon recess and when I got home at about 3:00 pm. This was accompanied with a stiff cutting wind and freezing drizzle creating a thick layer of ice on the roads making it almost impossible to walk without falling down when we got off the school bus. The bus driver could barely keep the windows ice free and could only drive at about 25 mph due the ice..
Cosmic Tusk is a pretty good place for YD information, current papers and ongoing arguments. I find it a fascinating detective story. Not only is the YD event of interest, but periodic crossings of earth’s orbits with particularly thick portions of the Taurid Complex streams every 1500 or 3000 years since then which may have led to subsequent climate downturns, civilization failures, etc. There was a reason that the ancients were freaked out about comets. Cheers –