At transform and convergent (subduction) boundaries, plates moving past each other cause stress to build up and then release energy causing earthquakes
100
What is a Volcano?
Any structure that brings magma from below the surface, erupting lava onto the surface
100
What is Compaction
Being squeezed together
200
What is the last step to finding the scientific method?
State a conclusion.
200
What is Lithsophere?
The rigid crust and upper mantle that sits on top of the asthenosphere.
200
What are fault zones?
Faults are cracks which occur when plates move past each other
200
What is magma?
Melted rock located below the Earth’s surface
300
What is a hypothesis?
A proposed explanation.
300
What is the Asthenosphere ?
the molten material below the lithosphere which causes plates to move
300
What is the Ring of Fire?
The nickname of the region bordering the Pacific Ocean where 80% of all earthquakes occur on Earth
300
What is the conduit?
Tube where magma rises through a volcano
400
What is another word for the mean?
The average.
400
Who is Harry Hess?
Geologist who became a navy sub commander in WW2.
400
What is the Hypocenter?
The point underground where the stress is released along the fault and seismic waves are created.
400
What is Subduction?
One plate moves under another causing magma to be produced and makes volcanoes
500
What is the Variance?
The difference in the data.
500
What are Magnetic reversals?
When The magnetic polarities (normal and reverse) match on both sides of the mid-ocean ridges
500
How do you locate earthquakes epicenters?
Use the difference in arrival time of P waves and S waves to find the distance. Then you need to use triangulation to combine three distances and find a single point.