. "Wikipedia:Volcanic_fissure"^^ . "FTT:702"^^ . "SWEETRealm:Fissure"^^ . "volcanic fissure"^^ . . "ENVO"^^ . "A linear volcanic vent through which lava erupts, usually without any explosive activity. The vent is usually a few meters wide and may be many kilometers long. Fissure vents can cause large flood basalts and hannels. The volcano can usually be seen as a crack in the ground or on the ocean floor. Narrow fissures can be filled in with lava that hardens."^^ . "ENVO:00000408"^^ . "fissure"^^ . "fissure vent"^^ .