Volcano types
What are the 3 types of volcanos
Shield, cinder cone, composite
What causes earthquakes
By movement of tectonic plates, faults
What event causes subduction zones
When there is a convergent boundary where one plate forces another plate under them.
What is the top of a volcano called
A crater
What does normal faults create?
Mountains
What type of volcano is this?
Small, steep-sided, bowl-shaped crater, most common.
Cinder cone
Where does earthquakes usually occur
Most earthquakes mostly occur along plate boundaries
How do you know which one in a fault is the hanging wall and which is a footwall.
The footwall is the one that looks like the foot. And the other one is the hanging wall.
What are the natural features/movements that volcanos are located
Subduction zones and hotspots
Define folding
The bending and curving of rocks due to stress.
What type of Volcano is Kilauea
Shield volcano
What is the name for the wave that causes shaking
Seismic waves
Mid-ocean ridge is a result of a _________ boundary and __________ occurs here where new ocean floor are formed
Divergent, seafloor spreading
What part of the volcano contains magma
Magma chamber
What creates a rift valley
Tension
What is a shield volcano
A type of volcano that is made up of layers of lava rocks. It creates slowly, which creates gradual sides.
What is the name of the area that earthquakes mostly occur
The ring of fire
Name 4 of the major plates
North American, South American, Eurasian, African
Define subduction zone. Where is it located
Subduction zone occurs when 2 plates collide, the older plate slides under the younger plate and becomes part of the mantle
How do volcanos create landforms
They dispose ashes, lava and other materials which builds up and creates new landfroms
Which type of volcano is the most destructive. Name one
Composite volcano. Mt. St. Helens
What are the 4 key words on the forces of tectonic plates and explain them.
stress (Force that acts on rock to change its shape or volume), Tension (Pulling on earths crust), Compression (Squeezing rocks until bending or break), Shearing (Rock being pushed in 2 opposite directions, until it bends or breaks)
The 2 types of results of convergent boundaries
Subduction, collision
What is a vent? Where is it located
The opening on earths surface where ashes and magma erupt.
What is an earthquake
The shaking of the Earth's surface caused by sudden movement along fault lines.