Hello everyone So I just read all the pages and found a lot of interesting things said ( I up-voted them, of course ). And I while staring at the Roshar, I noticed something rather peculiar : the shape of the archipelagos. They are perfectly aligned along ellipses. And symmetrical. Let me show you :
Do you see what I mean ? The ellipse #1 has a little offset though, and ,in my opinion, due to the Highstorms themselves, the same phenomenon can be seen with Earth sand dunes, which can travel quite some distance every year ( drifting ? ). Ellipses #2 and 3 have an identical "twin", offsetted themselves a little as well, located at the same distance of the center of symmetry. How to explain the differences in topology, Roshar not being symmetrical ? Well : wind erosion and sedimentation of crem. The Unclaimed Hills and the Frostlands are the result of this, the highest pressure being on the Hills, where the wind is the strongest and the crem more abundant due to be the first landmass hit by the Highstorms. And thousands, hundreds of thousand, millions ( ? ) of battering made them a very rugged terrain. The Frostlands are a part of what hit the Hills also, but in a "smoother" way, maybe due to the fact that there was nothing behind but water/sea, nothing to pile on, like the archipelagos from the origin of time.
And Iri, Babatharnam and Rira are the results of sedimentation. The Reshi sea and the Purelake, if I'm right, will be landmasses in the future, due to the same phenomenon.
Shinovar is the oddball there, because of its protection, like a big valley between those two mountain ranges. I'm pretty sure the Roshar of Old must really look like that country, with dirt, grass, trees ,Earth-like.
And no, I'm not a geologist
Food for thought, my friends, food for thought
PS : once again, I'm sorry if there are grammatical/spelling errors, English not being my native language