Stories in Rocks

http://www.science.ubc.ca/~geol202/
An online petrology course by Michelle Lamberson at the University of British Columbia featuring images and information about the study of igneous, sedimentary, and metamorphic rocks.

http://www.kaibab.org http://vishnu.glg.nau.edu/rcb/Grand_Staircase.html/
The Grand Staircase is a presentation of the stratigraphy of the southern Colorado Plateau and Grand Canyon by Ron Blakey at Northern Arizona University.

http://walrus.wr.usgs.gov/docs/seds/sedimentology.html
The Bedform Sedimentology site of the United States Geological Survey (USGS) offers images and movies of cross-bedding and bedform features in sedimentary rocks.


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