Tutorials

There are a selection of geology tutorials from introductory to advanced levels covering a range of topics which together form a free online textbook.

If you enjoy reading our tutorials, please let other people know about them. If you think you can add something to the tutorial, please feel free to comment on them via the forums (you'll need to register to do this) or even better, you can write one yourself. Simply create an account if you don't have one and click "Create content"!

Below is the abstract of an example tutorial.

Meteor Craters

A meteorite is defined as any extraterrestrial solid mass that reaches the Earth's surface (Farris Lapidus, 1990). The term strictly extends from the nano scale e.g. dust particles, through to the macro scale e.g. 100s of metres in diameter (Zanda and Rotaru, 2001). However, the term meteorite is generally reserved for the larger particles that reach the Earth's surface.

 read more »