melting,freezing,evaporation and boiling melting
State FOUR changes which extrusive volcanic features may undergo overtimeΒ *
Land
A volcano is composed of material that cooled and solidified at the surface, which makes it extrusive.
The main effect of extrusion is that the magma can cool much more quickly in the open air or under seawater, and there is little time for the growth of crystals.
Which volcanic feature did you find most difficult to identify? Explain why.
Only the most violent volcanic eruptions feature a pyroclastic flow.
Volcanic rock and many crator
A volcano is composed of material that cooled and solidified at the surface, which makes it extrusive.
The main effect of extrusion is that the magma can cool much more quickly in the open air or under seawater, and there is little time for the growth of crystals.
No. A lava flow is considered an extrusive feature.
Which volcanic feature did you find most difficult to identify? Explain why.
Only the most violent volcanic eruptions feature a pyroclastic flow.
No. A lahar is a mudflow formed by extrusive igneous material.
Volcanic rock and many crator
It is a cauldron-like volcanic feature usually formed by the collapse of land fallowing a volcanic eruption.
No. A pluton is an underground body of intrusive igneous rock. A lahar is a mudflow formed from mixing water with volcanic ash.
Parallel belts of folded mountains and volcanic mountains
volcanic erupation
They are a mountain range/ volcanic feature.