the continental plate also migrates
Comment on Woaaaaa
disguy_ovahea@lemmy.world 3 weeks agoAre you referring to the magnetic pole switch? That happens every 200-1M years, according to patterns on the seafloor. It’s been estimated that the last reversal was 780,000 years ago, so it actually could be any day now.
With that being said, I doubt that humanity will agree to turn all maps 180° to correspond.
fogstormberry@lemmy.blahaj.zone 3 weeks ago
disguy_ovahea@lemmy.world 3 weeks ago
At the rate of 1cm/yr
fogstormberry@lemmy.blahaj.zone 3 weeks ago
[deleted]disguy_ovahea@lemmy.world 3 weeks ago
To move a continent north of the equator at the rate of 1 CM per year? You might need a bigger napkin.
Antarctica’s leading coast is 10,000 KM from the equator. Assuming it’s able to continue through Southern Africa at the same rate, it would take 100 billion years to have a northern coast.
veroxii@aussie.zone 3 weeks ago
I was referring to continental drift. Places move a lot in under 200 million years. Eg youtu.be/uLahVJNnoZ4
So my post was a bit sarcastic that eventually it will have a coast but not on any time frame to matter to the human species. :)
fossilesque@mander.xyz 3 weeks ago
Laschamp event! I just edited a related wiki page.
swab148@startrek.website 3 weeks ago
Just flip it over lol
pacmondo@sh.itjust.works 3 weeks ago
I thought they were referring to the fact that under the ice its an archipelago, so if the ice melts it will have southern coasts again
disguy_ovahea@lemmy.world 3 weeks ago
Valid point. It’s a shame humanity won’t be around to confirm. lol
fishos@lemmy.world 3 weeks ago
If it melts, they’d all be northern coasts.
It’s referencing the pole swap.
TheLorax@sh.itjust.works 3 weeks ago
Since it’s an archipelago underneath then most, if not all, of those islands would have a southern coast. The only way to not have a southern coast is to have the landmass directly on top of the pole, which could only happen for one island (if no ice is present)