Here is a photoshopped version for the sleeping:
Maybe not formed when Pangea split up .... maybe came into existence when the YDB comets//asteroids came calling?
Is there a math whiz who can guestimate the atmospheric displacement caused by these high speed impactors?
What might the temperature drop have been in the air ... from air(???) --- entering after the blazing hot asteroids quenched on the ice??
An animation of the impact would make the whole thing lots easier to visualize!
In Sitchin (goodness, back to the topic) ... there is an observation point built and manned very near the south pole ... a place where someone watches for the Earth flooding comet which the Anunakki know is coming. And they are not worried about the Northern Hemisphere ... not in any tablet which Sitchin related.
Lots of asteroids, lots of "North Wind"?
The North Wind is spoken of as a weapon which is at Nibiru's command.
It is clearly not moving air ... coming to battle from outer space .... it is something atmospheric and likely very cold, something which can "flash freeze" a lot of 'water' over a large area of land.
Some of the air burst comets laden with frozen gasses? Hard to find evidence of.
What else can we not imagine?
Mind is the rider.