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The slime! (lemmy.world)

submitted 6 months ago by The_Picard_Maneuver@lemmy.world to c/whitepeopletwitter@sh.itjust.works

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[-] CCF_100@sh.itjust.works 40 points 6 months ago

Does a river run along that goofy looking border?

[-] s_s@lemm.ee 35 points 6 months ago

Yes. But the border is drawn where the river used to be.

[-] ME5SENGER_24@lemmy.world 22 points 6 months ago

Yup, the Mississippi

[-] CCF_100@sh.itjust.works 6 points 6 months ago

Rivers are almost always the culprit of goofy looking boarders

[-] Fuck_u_spez_@sh.itjust.works 7 points 6 months ago

I think most rivers look like that given enough time and erosion. I don't remember the explanation but I half remember reading that just about any curvy river has carved its riverbed into that shape over very long periods.

[-] mediOchre@sh.itjust.works 7 points 6 months ago* (last edited 6 months ago)

water moves faster along the outer bends, giving it an increased capacity for carrying sediments. this results in erosion happening faster near the outer curves. on the other hand, water is slower near the inner bends, forcing the sediments carried by the river to deposit there. this interaction makes the rivers more bendy. an interesting result of this phenomenon is the formation of oxbow lakes (those c-shaped bodies of water separated from the main river)

Yamal Peninsula, Russia