Similar to a [[pyroclastic flow]] but of much lower [[density]] (higher gas to rock ratio). (Gardner, et.al., 1995)
Similar to a [[pyroclastic flow]] but of much lower [[density]] (higher gas to rock ratio). (Gardner, et.al., 1995)
−
Turbulent, low-density cloud of hot rock debris and gases that moves over the ground surface at high speed. <ref>[http://vulcan.wr.usgs.gov/Glossary/volcano_terminology.html Glossary of Volcano and Related Terminology]</ref>
+
Turbulent, low-density cloud of hot rock debris and gases that moves over the ground surface at high speed.<ref>[http://vulcan.wr.usgs.gov/Glossary/volcano_terminology.html Glossary of Volcano and Related Terminology]</ref>