this post was submitted on 09 Sep 2024
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2024-11-11

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Stunning Video Shows How Much Earth Has Changed in 1.8 Billion Years (www.sciencealert.com)
submitted 2 months ago by just_another_person@lemmy.world to c/science@lemmy.world
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[–] moistclump@lemmy.world 4 points 2 months ago (2 children)

I’m a bit confused by the video reconstruction I’m not going to lie: https://youtu.be/_LJG68AmZxI

[–] just_another_person@lemmy.world 4 points 2 months ago (2 children)

What's the confusion? Maybe I can help.

Did you realize it was working backwards?

[–] moistclump@lemmy.world 4 points 2 months ago (2 children)

Ohhhhh yes that’s it. It was also so much more movement than I was expecting! I was expecting us to go from pangea glob to continents and then some shifty shifty but man those tectonics were BUSY.

[–] ripcord@lemmy.world 2 points 2 months ago

Lots and lots of convection in that mantle.

[–] waggz@programming.dev 2 points 2 months ago

Pangaea is only the most recent supercontinent, and therefore the most known. there are believed to be several more iterations in this cycle of combining and breaking up large landmasses.

[–] jordanlund@lemmy.world 0 points 2 months ago

The working backwards was interesting, but also fascinating how the ratio of land to sea was so much different at the start.

[–] Pretzilla@lemmy.world 2 points 2 months ago

Is the land sea ratio due primarily to sea level changes?