How Volcanoes Form
A spot underneath the lithosphere that is abnormally hot in that area causes magma to seep through cracks and forms a volcano.
What is a hot spot?
This type of volcano was formed by many layers of low viscosity lava.
What is a shield volcano?
Something that is very thick is said to have this.
What is high viscosity?
Sand dunes are formed by this.
This is an upward fold.
What is an anticline?
The Hawaii Islands where from from this.
What is a hot spot?
This volcano is normally built up by alternating layers of ash and lava.
What is a composite volcano?
The type of magma that has a low viscosity.
What is mafic lava?
A convergent landforms are made by this.
What is folding?
This type of mountain forms from many layers of liquid rock that hardens.
What is a volcano?
Magma seeps up when two plate move apart. This sometimes forms a volcano.
What is a diverging center?
This type of volcano tends tends to form in the ocean and not at a plate boundry.
What is a shield volcano?
This eruption is the most dangerous.
Why is a pyroclastic flow?
Eskers were formed by this.
What is a glacier?
Uplifting of a region by some tectonic activity produces a steep side "mountains" that is classified as this.
What is a plateau?
Mount Saint Helens was caused by this.
What is a subduction zone?
This type of volcano tends to be very symmetrical and fairly steep.
What is a cinder cone?
Cinder cones have these types of eruptions.
What is all types?
Mesas were formed because of this.
What is erosion?
Long, low ridges formed by a glacier are classified as this.
What is a Moraines?
What is a subduction zone?
What is a lava dome?
Lava that comes out of a lava dome.
What is felsic lava?
What is fault-block mountains?
This is the only left of an old volcano that eroded away.
What are volcanic necks?