Bob Jorstad, Eastern Illinois University, Department of Geology and Geography, Eastern Illinois University
This is a collection of mnemonic devices to aid in learning the various periods and epochs of the geologic time scale which the author has assembled from a variety of contributors. Contributor email addresses are included. There are also mnemonic devices for Moh's hardness scale and for stratigraphic sequences from the Canyonlands-San Juan River area and the Grand Canyon.
This description of a site outside SERC has not been vetted by SERC staff and may be incomplete or incorrect. If you
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