So I've been waiting to do terrain on Oz's map, yet there's plenty of beatching about knowing whether or not how terrain works, so lets do this constructively and start from scratch, hence the topic name of terraforming.
I want to say that I've no degree in geology nor I pretend to know how it works, I simply mimic real earth terrain. Anybody that wants to contribute by saying how one thing should be different
First, macro tectonic map.
Context: supercontinent twist and split, mind I didn't do major distortions
Proposed split
Warning, this is not to be RPed, this is only to make sense to mountainranges and rifts and whatnot. This will be an ongoing discussion.