Hello,
I am writing a book that involves a world where several different types of environments, that were never meant to coexist, have been thrust together into a single "earth" world. To get a better idea just think about if you had deserts, rainforests, tundras, etc. that were all pies. Now cut a piece from one of the pies and place it in a spot were you cut another piece from another pie.
My question is, given these strange turn of events, what would happen to say a section of a mountain range that suddenly replaced a large area surrounded by desert, or grasslands? Or if a mountain sized glacier was dropped on a redwood forest.
I am basically looking for ideas for strange terrains that could support human life (or not) that have been thrown together, then allowed to settle for say 400-500 years. Characters will be traversing or avoiding these landscapes so the more extravagant the better. Any and all ideas are welcome. If I need to expound upon my post please let me know. Let your imaginations run wild.