Alright, so you're talking about small seas...
...and rivers where our ocean trenches would be.
How long are these trench-rivers? How widespread are they?
Geologically speaking, oceanic trenches are margins between plates...convergent margins, where one of the lithospheric plates sinks beneath the other, instead of rising up in a mountain-esque feature.
There's something like 50,000 km of such plate margins on Earth, though not all of 'em are deep enough to qualify under the layman's definition of an ocean trench.
Still, there's a lot of 'em.
So.
I'm not a geologist, so I could be totally off about this...
But I'm thinking, hey, you've got the beginnings of continent-spanning mega-rivers here.
As Sirrocco pointed out, civilisation's going to be based around where the water is.
So, y'know, there's gonna be a lot of human settlements - and trade - based around those really big and really long rivers...
Here's another thing to consider - your planet's gonna look like a ball criss-crossed with veins of water, and the occasional little blob of landlocked sea.
You got the canals of Mars, man. =)
-- Acyl
...and rivers where our ocean trenches would be.
How long are these trench-rivers? How widespread are they?
Geologically speaking, oceanic trenches are margins between plates...convergent margins, where one of the lithospheric plates sinks beneath the other, instead of rising up in a mountain-esque feature.
There's something like 50,000 km of such plate margins on Earth, though not all of 'em are deep enough to qualify under the layman's definition of an ocean trench.
Still, there's a lot of 'em.
So.
I'm not a geologist, so I could be totally off about this...
But I'm thinking, hey, you've got the beginnings of continent-spanning mega-rivers here.
As Sirrocco pointed out, civilisation's going to be based around where the water is.
So, y'know, there's gonna be a lot of human settlements - and trade - based around those really big and really long rivers...
Here's another thing to consider - your planet's gonna look like a ball criss-crossed with veins of water, and the occasional little blob of landlocked sea.
You got the canals of Mars, man. =)
-- Acyl