Citations for information
"Rhyolite." : Igneous Rock. N.p., n.d. Web. 05 Mar. 2014. http://geology.com/rocks/rhyolite.shtml.
"USGS: Volcano Hazards Program Yellowstone Volcano Observatory." USGS: Volcano Hazards Program Yellowstone Volcano Observatory. N.p., n.d. Web. 04 Mar. 2014. <http://volcanoes.usgs.gov/observatories/yvo/>.
"Tuff." About.com Geology. N.p., n.d. Web. 05 Mar. 2014 <http://geology.about.com/od/rocks/ig/igrockindex/rocpictuff.htm>.
United States. National Park Service. "Hotspot Theories." National Parks Service. U.S. Department of the Interior, n.d. Web. 05 Mar. 2014. <http://www.nps.gov/features/yell/tours/fountainpaint/hotspot_yell.htm
http://www.rense.com/general31/overdue.htm 02 Mar. 2014.
tps://www.google.com/#q=hotspot+definition 27 Mar. 2014.
com/#q=caldera+definition 27 Mar.2014.
"USGS: Volcano Hazards Program Yellowstone Volcano Observatory." USGS: Volcano Hazards Program Yellowstone Volcano Observatory. N.p., n.d. Web. 04 Mar. 2014. <http://volcanoes.usgs.gov/observatories/yvo/>.
"Tuff." About.com Geology. N.p., n.d. Web. 05 Mar. 2014 <http://geology.about.com/od/rocks/ig/igrockindex/rocpictuff.htm>.
United States. National Park Service. "Hotspot Theories." National Parks Service. U.S. Department of the Interior, n.d. Web. 05 Mar. 2014. <http://www.nps.gov/features/yell/tours/fountainpaint/hotspot_yell.htm
http://www.rense.com/general31/overdue.htm 02 Mar. 2014.
tps://www.google.com/#q=hotspot+definition 27 Mar. 2014.
com/#q=caldera+definition 27 Mar.2014.