vent which magma and other molten materials in the planet interior are ejected

divergent plate boundaries in the ocean floor

happens when two plates diverge, collide with the other plates next to them

place deep place within earths interior region

quiet eruption is also known as

runny lava that flows from the vent in a steady stream

violent eruptions of viscous lava at supersonic speeds from the volcano’s opening

produces the steam of hot water heated by magma

consists of hot water steam

quiet eruption of lava that runs down the flanks of a volcano

consists of fluid lava

huge amounts of gas that thickens the consistency of lava

characterized by gentle spurts

least violent explosive eruptions

short but explosive eruption

most violent explosive eruption

combination of silicon, oxygen, etc.

viscous type of lava that travels far from the vent

cools down very slowly

hawaiian term for a thin

hawaiian term for thick

cools down quickly

formed by the eruption of submarine

hardened fragments of lava

formed from thin molten lava

phivolcs means