Here is a website for aspirants who opted for geography. These are slide of Dr. Bruce Railsback at Georgia University.

[URL]http://www.gly.uga.edu/railsback/GeologicalDiagrams1.html[/URL]

This other link is for images from the field, surely will help you all understand some concepts.

[URL]http://www.gly.uga.edu/railsback/FieldImages.html[/URL]

This last link is a page with some more geography links that might interest you.

[URL]http://www.gly.uga.edu/railsback/railsback.html[/URL]

There are still some diagrams that are not available in the site mentioned above. So please, do share any other similar sites.

Best of luck you all....