New page: Places on the ocean floor where lithospheric plates separate and magma erupts. About 80 percent of the Earth'svolcanic activity occurs on the ocean floor...
Places on the [[ocean]] floor where [[lithospheric]] plates separate and [[magma]] erupts. About 80 percent of the [[Earth|Earth's]] [[volcano|volcanic]] activity occurs on the ocean floor. <ref>[http://vulcan.wr.usgs.gov/Glossary/volcano_terminology.html Glossary of Volcano and Related Terminology (Teacher's Packet) ]</ref>