Volcanic Landforms

Chapter 3-4

Landforms from Lava and Ash

• Shield volcanoes• Cinder cone volcanoes• Composite volcanoes• Lava plateaus

Calderas

Landforms from Magma• Volcanic necks• Dikes and sills• Batholiths and dome mountains

Geothermal activity

• Hot springs- groundwater is heated by nearby magma, rises, and forms a natural heated pool

• Geysers-fountain of water and steam that erupts from underground

Benefits of volcanoes

• Geothermal energy for heat and electricity• Rich, fertile soil (potassium and phosphorous)