OneGeology- a dynamic geological map of the world

If you study (or hold, collect, revere, or use) rocks and soil, look at this remarkable project to provide geological mapping on a worldwide level.

 

See here for a general article on the project: Geological mapping gets joined up- BBC News 31 July 2008

Go here for OneGeology, and here for the portal to their map of the world (you can zoom in for information).