Igneous Rocks 5 : Rocks formed by the solidification of molten magma. Magma is composed of numerous minerals (mainly silicates) and grass derived from the earth's crust and mande, and is in a melted state
Intergovernmental Oceanographic Commission IOC technical series 37, Tsunami Glossary (A glossary of terms and acronyms used in the tsunami literature - English), , United Nations Educational, Scientific and Cultural Organization UNESCO, Paris, France 1991. http://unesdoc.unesco.org/images/0008/000885/08853 8eb.pdf, (ND/ Tsunami Sci - Brit) {590}