WEEK 6 - LESSON 5 (TYPES OF ERUPTION) Flashcards
Considered to be the most explosive eruptions, producing ash columns that extend many tens of miles into the stratosphere and that spread out into an umbrella shape.
PLINIAN ERUPTION
Example of Plinian Eruption
MOUNT VESUVIUS
driven by the direct interaction of magma and water.
PHREATOMAGMATIC ERUPTION
a type of explosive eruption that results from magma erupting through water.
PHREATOMAGMATIC ERUPTION
It is a Steam- Blast eruptions as a hot
rock comes in contact with water.
PHREATIC ERUPTION
Made up of steam-driven explosions that occur when water beneath the ground or on the surface is heated by volcanic activity.
PHREATIC ERUPTION
EXAMPLE OF PHREATIC ERUPTION
MT. TAAL PHILIPPINES
Bursting of gas bubbles within the magma
STROMBOLIAN ERUPTION
moderately explosive eruptions of basaltic magma with moderate gas content.
STROMBOLIAN ERUPTION
It consist of intermittent, discrete explosive bursts which
eject pyroclastics as high as hundreds of feet into the air in firework-like incandescent rooster-tails.
STROMBOLIAN ERUPTION
EXAMPLE OF STROMBOLIAN ERUPTIO
ETNA IN ITALY
it pressure of entrapped gases in relatively viscous magma becomes sufficient to blow off the overlying crust of solidified lava.
vulcanian eruption
consist of small volumes of magma, but form
vigorous eruption columns made up of highly fragmented ash.
vulcanian eruption
EXAMPLE OF VULCANIAN ERUPTION
SAKURAJIMA, JAPAN
Volcano eruptions which take place beneath the surface of water.
SUBMARINE ERUPTION
