Interactive Lessons on Volcanoes
Lessons on volcanoes
www2.asd.wednet.edu/Pioneer/barnard/lessons... Cascades Volcano Observatory
vulcan.wr.usgs.gov/home.html Volcanoes A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface.
https://en.wikipedia.org/wiki/Volcano Principal Types of Volcanoes
Geologists generally group volcanoes into four main kinds--cinder cones, composite volcanoes, shield volcanoes, and lava domes.
pubs.usgs.gov/gip/volc/types.html
Previous