Geology

Abstract

Geology is the study of how Earth evolves over time including how it was formed, what it is made of, and the changes that take place in it and on it. The term can be applied to other planets too, although sometimes that is called planetary geology or astrogeology to make the distinction. Whatever you elect to call it, geologic phenomena are complex and rarely have very simple mathematical models. We have picked a few surface feature types that we think are interesting and that can be hard to visualize without some sort of physical model.