Plate Tectonics 
                      http://lrs.ed.uiuc.edu/students/downey/project/platectonics.html
                      Mt. Erebus, Antarctica
 http://volcano.und.nodak.edu/vwdocs/current_volcs/erebus/erebus.html
                      Understanding Antarctica Geology
 http://www.usatoday.com/weather/resources/coldscience/ageology.htm
                      Resources
 http://students.itec.sfsu.edu/itec815_f99/esund_dguenther/link.html