Home›Volcanic Formations›Formation FamilyBrowse ByFormation FamilyFactsFormation FamilySourcesComments (0)Reader Challenges (0)FactsComparisonFormation OriginWell-attestedA vent or fissure allowing hot lava, ash and gases to escape from a magma chamber below the surface. 1Formation FamilyBrowseCompareCalderas and Crater LakesVolcanic Formations21 entriesCinder Cones and Volcanic ConesVolcanic Formations11 entriesColumnar Basalt FormationsVolcanic Formations7 entriesGeothermal and Hydrothermal FeaturesVolcanic Formations4 entriesLava Tubes and Lava FormationsVolcanic Formations23 entriesNamed VolcanoesVolcanic Formations13 entriesShield VolcanoesVolcanic Formations23 entriesStratovolcanoes and Composite VolcanoesVolcanic Formations82 entriesTuff and Pyroclastic FormationsVolcanic Formations3 entriesVolcanic Islands and ArchipelagosVolcanic Formations92 entriesVolcanic Landform ConceptsVolcanic Formations34 entriesVolcanic Plugs and NecksVolcanic Formations7 entriesVolcanic Valleys and DepressionsVolcanic Formations4 entriesSources1. Wikipedia: Volcanotier 2WikipediaVolcano, lead sectionQuote, Volcano, lead sectionA volcano is a vent or fissure in the crust of a planetary-mass object that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface.View the SourceComments (0)No comments yet. Be the first to share a thought.Sign in to join the discussion.Reader Challenges (0)No disputes yet. Spotted an error or a better source? Open the first one.Sign in to dispute this or suggest a correction.