This site was created by John Butler of the University of Houston. Included here are lecture materials on sedimentary rocks and processes with an online quiz, internet resources and a virtual trip to the Grand Canyon. ...

The site, Professional Development for Geoscience Faculty, continues to receive high marks and a great deal of praise, and this resource follows in that established tradition. Created by Lawrence D. Lemke of Wayne State...

This site features Flash animations that illustrate various facets of the rock cycle. The visualizations depict rock-forming processes, such as erosion, transportation, deposition, cementation, crystallization,...

This guide provides illustrated descriptions of 46 common and important varieties of igneous, sedimentary, and metamorphic rock found in the San Francisco Bay region. Rock types are described in context of their...

This site from James Madison University focuses on sedimentary rocks. It includes many useful links, including an introduction, encyclopedia, classification and identification pages, and more.