This is a volcano made up essentially of alternate layers of lava flow and pyroclastic deposits (i.e. ash falls, glowing avalanches, other fragmentary ejecta)
National Emergency Management Organisation (NEMO), Saint Lucia Disaster Plan, Section 13: Glossary (3.0 Terms Used In The Volcanic Plan), Castries, Saint Lucia, West Indies 1996. http://www.reocities.com/CapitolHill/lobby/6075/Gl ossary.htm, (Emr/ Volc and Oil Spills - Brit) {139}