For the record, trying to develop a fictional planet’s geography from the plate tectonics up is a royal pain in the nether regions. I begin to see why most people just call up a noise-driven fractal map generator and call it a day.

I will persist. At the very least, I’m learning a great deal about how plate tectonics actually work. I think I may cave in and go see if anyone has developed a more detailed work-flow to make sense out of this.