Different Eruption Types

________ eruptions result from the extreme buildup of gases in the magma chamber and conduit (which become as much as 75% gas).

• Plinian

• Palean

• Vulcanian

• Strombolian

_______ eruptions are very similar to Vulcanian eruptions, except that they are of greater magnitude. These eruptions are characterized by nuée ardente or “glowing avalanches."

• Palean

• Vulcanian

• Strombolian

• Icelandic

_______ eruptions result from more viscous lava which slows down bubble formation and clogs up conduits.

• Palean

• Vulcanian

• Hawaiian

• Icelandic

_______ eruptions are sustained fissure eruptions, producing curtains of basaltic lava. Prolonged eruptions produce large igneous provinces (LIPs).

• Palean

• Vulcanian

• Hawaiian

• Icelandic

_______ eruptions are the result of the bursting of clumps of gas bubbles at the

surface, throwing up clots of lava. Incandescent lava flows accompany high concentrations of pyroclastic debris. The eruption column is less than 5km.

• Strombolian

• Vulcanian

• Hawaiian

• Icelandic

_______ eruptions produce low-viscosity basaltic lava flows and fountains. It evolves from Icelandic eruptions.

• Strombolian

• Vulcanian

• Hawaiian

• Icelandic

_______ eruptions occurs in a shallow body of water and is usually characterized by strong explosions as a result of magma coming in contact with water.

• Strombolian

• Surtseyan

• Hawaiian

• Icelandic