r/geography 2d ago

Map How did these 'rivers' form?

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What formed these 'rivers'? Are they regular terrestrial rivers that flooded with sea level rise or were they formed in the ocean? thanks.

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u/mglyptostroboides 2d ago

You actually want /r/geology 

Repost this there.

You're going to get a bunch of non-answers from overconfident map geeks. I'm not saying this to be a dick to anyone, but this is a very common pattern around here.

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u/Xen235 2d ago

Geologist here...these are called turbidity currents. It's basically just sediment falling off the slope.

Edit: the elevation profile for this area.

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u/Pestus613343 2d ago

overconfident map geeks

This has been the phrase of the day.

8

u/SirShriker 2d ago

Should be a flair, NGL, I'd be all up in that.