Hot spot Volcanoes Flashcards
Most volcanic activity occurs at plate boundaries but there are some areas of intense volcanic activity that occur away from plate boundaries, these are called ___ _____
hot spots
Concentrations of ___________ elements in the mantle cause heat to rise (because it’s less dense) to the earths surface via __________
radioactive convection
The heat warms the earths _____ as well.
crust
The intense heat that rises from the mantle to the crust is called a magma _____.
plume
When magma reaches the top of the plume, it breaks through the crust to the earths surface and breaks through forming ________
volcanoes
The lava at hot spots is ________ and runny and low on the ___ scale.
basaltic VEI
The volcanic plume remains __________ but the crust above it moves.
Stationary
Volcanic activity in the part of the crust that was above the hot spot _________as it moves away.
Decreases
New volcanos form in the part of the crust that is now _____ the hot spot.
Above
As the crust continues to move a _____ of volcanos is formed.
Chain
There is a hot spot volcano in ______ USA.
Hawaii
When this process takes place underwater ______ ______ are formed
Island arches