Further reading
The Geological Society – plate margins [Tip: hold Ctrl and click a link to open it in a new tab. (Hide tip)]
Mindat: Mindat has information on minerals from all around the world. Try searching there for chalcopyrite and bornite.
William Smith’s map is on display at the Geological Society in London, where you can visit it during office hours without an appointment: Visiting the William Smith Map
You can find out more about oil, and the possibilities for living without oil, in another short OpenLearn course: Living without oil
If you are interested in finding out more about Oldoinyo Lengai, YouTube has some fascinating videos showing the low viscosity carbonatite lava erupting: Oldoinyo Lengai
For an even more detailed insight into REES, visit the British Geological Surveys website: British Geological Surveys - rare earth elements