Thanks for the info AND the links. Though I will proabaly not delve this deep, it is nice to have an idea of what might be going on in the real world. I think for me, this will mainly help influence the idea behind why islands are where they are and how many of them there are.

I know some people over on the NBOS forums have had some debate about how most mapping programs that generate worlds don't take this into account and the general thing is that you would need hugh housepower or tons of time to even approximate getting this created right. Mainly, this is directed at Fractal World Explorer or Fractal Terrains autogeneration functions. For the most part, the people on that forum are fairly agnostic in how real geology affects world creation. Most people have the attitude (which I mostly have) that "its just a fantasy world, so as long as the rivers go down hill, thats probably good enough for me."

Joe