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| Clastic Detritus A geologist writes mostly about sedimentary and marine geological research and Earth science. http://clasticdetritus.com/ - Read more |
| SDSU Geological Sciences - Department Blog Find out what's happening in the Department of Geological Sciences at San Diego State University. http://sdsugeology.blogspot.com/ - Read more |
| The Volcanism Blog Explores volcanoes, volcanism, and volcanology, both on our planet Earth and out in space. http://volcanism.wordpress.com/ - Read more |