Lidar reveals the ancient landforms that most Carolina Bays researchers won't show you

Lidar changes everything. I look forward to more of these.

You talk about the sandune sheet froming from the bay and the smaller bay forming later cutting the the sandune. How about the sandune was there before the impact, and both impacts are on top of or obliterated the sandune feture.

Your initial suggestion that perhaps the migrating dunes could not move into the basin because it’s closed hydrology enables it to be water filled (at least periodically) and circulating water spread the slow dune influx across the entire basin. One test would be to identify basins that are NOT hydraulically close - like those pirated by nearby streams/rivers. I find such basins often breached by normal dune migration.

Great video 👍

WTH are you doing, applying facts and reason and logic to this phenomena??? Are you a MADMAN? Oh, the conspiracy theorists are not going to like this one bit. I am especially looking forward to you trying to explain Marine Isotope Stages to both seasoned "scientists" and the general public. You are a brave person for tackling this particular geomorphology, in this space no less, for sure. There's a reason why Geologyhub won't touch it. Anyway, this was very well presented. Subbed!

8:00 all of these look like continuous sand dunes interrupted, none of the bays actually look like they shield dune formation, they dont have teppering shadows where you see sand try to spread around the lakes like in the falkland dunes, ther are some very superficial lakes just in the middle of the dunes, theres no identifiable layering of dune patterns it can very much still be interpreted as a single instance of impacts into active dunes and since some dunes spread into bays and some bays have blown features dune formation continued after but doesnt need to derive from potentially otherwise unrelated impacts

You think you are the only one with Lidar? lol

Vegetation often presents a very effective barrier to wind and erosion. Vegetation around the raised rims of the bays would present significant resistance to the advancement of wind-b;lown sand, In effect, the sand would collect around the windward edges of the rims as we see in the LIDAR images you've offered.

What creates the bays?

You know, it can be both! after bombardment, there was a hellscape for decades... wind can move ejecta!

experiments involving the wind & water hypothesis never replicated elliptical geometry, nor was the 1977 paper by Kaczorowski ever peer-reviewed. in other words, the eolian hypothesis for Carolina bay formation is complete speculation, and any dates obtained using this hypothesis cannot tell us when an impact occurred because the perfectly elliptical and consistent geometry of the bays indicates an impact origin--not primary impacts, but secondary impacts. please refer to Zamora's work for more information. thank you.

Not necessarily so. So many theories, but only one is right, Any theory concerning the bays is just that, a theory, unless it explains exactly how the bays themselves were formed. Talk of windblown sand is just a distraction until it's decided how the bays formed. Investigating the layering of the windblown sand comes way before deciding the timing of bays and chevrons. Has that been done? As for bays being formed at different rates or times is very clearly spurious. Nowhere in the world can this bay formation be seen to be active today. We should not be ignoring overturned layers at the southern end of the bays, as there would be with impacts. The physics of so many impacts over such a widespread countryside in such a short time period is mind boggling. Can anyone with any competence say what effect winds of many hundreds or thousands of miles per hour would do when combined with billions of tons of water travelling at supersonic speeds? It's just another distraction comparing present day windblown sand forms with those of the bays, clearly no present wind formations are anywhere near the scale of the bays. Once science gets it's act together it will prove the one event was responsible, for not just the bays, but will also explain the extinctions of so many peoples and beasts.

Another totally fascinating video. And anything that speaks sense - sense based on facts - to the current obsession with seeing "impact related features" every where brightens one's day. Though the vogue for impacts under every stone is LESS totally silly than ancient astronauts or Atlantis, they nevertheless look suspiciously like close cousins.

I just wonder if flooding was accuring or accured shortly after some of the inpacks, then higher acr of the ejecta? Dunes being water born rather than wind?

Supposedly the jet stream was briefly pushed down close to the surface by the expanding vapor plume created when an extra terrestrial object impacted the ice sheet near the great lakes. This is what created the ice boulders that formed the secondary impact craters that we call Carolina Bays. The ice boulders themselves did create splash chevrons as they impacted wet soil liquified by the vibration from the impacts. The sheets of sand along rivers and streams are not "splash" chevrons created by impacts. These sand sheets are more akin to ones left by tsunami waves. They were created by hurricane force winds coming from the south west, blasting across the coastal plains and blowing water and sand out of their river, stream and lake beds. This occured as the jet stream was suddenly displaced to the surface following the impact into the ice sheet. (Note: wind direction is dictated by the flow of the jet stream. It is not a blast wave from the impact.) The rain-down of ice boulders that created all Carolina Bays took only minutes. There are sand sheets that partially cover bays that also have bays on top of the sheet, meaning the sand sheet formed as the ice bombardment was taking place. The video also shows an example of a bay on top of a sand sheet with a splash chevron formed as it landed. The splash chevron points in the same direction as the sand sheet. In the same view you can see other bays to the right that formed and then were partially inundated by the wave that created the sand sheet. That was followed by the impact to the sand sheet that created the bay in the center that has a splash chevron.

The round formations are NOT Bays.... which are ALWAYS Elliptical and ALWAYS have their long axis point towards the Great Lakes regardless which State they formed in.

The bays collars are overlapping, overturned sediment. Is that not all the proof we need that they were formed from impact debrit? How does wind form that feature?

Nope. These formed from secondary impacts of ice. Carolina bays and Nebraska rainwater basins formed that way.

If you spend 20 minutes going through lidar data, the impact theory falls away fast. It's next to impossible to share links on here or I would. New Jersey has easy to use lidar though. There are clearly many generations of bays of all shapes and orientations. Wind just makes so much more sense...

The sand dune sheets were developed by millions of years of prevailing wind action. That is 100% true. Now, take a moment to completely remove the Carolina Bays from the landscape and you will still have the sand dunes. Their existence is not dependent on the presence of the Carolina Bays. We should be able to conclude that they were not formed BY the Carolina Bays and existed for millions of years. At 7:13, you use the evidence of a smaller bay taking a "bite" out of a sand dune as proof that they did not happen at the same time. But is it not just as likely that the large bay took a "bite" out of what was a previously formed sand dune also? The Carolina Bays morphology overlays the phenomena you describe. Both can be true; geology takes millions of years of progressive change AND is changed by sudden phenomena.