Earth Layers
Which crust consists of continents
Continental Crust
Measure Earthquakes
What are the three types of plate boundaries?
Converging, Transforming, and Diverging
Compression
What causes the crust to move
Convection currents
Which Crust is more dense?
Oceanic Crust
An earthquake is
The shaking of Earth's Surface caused by energy release
Explain the 3 plate boundaries
converging-collide
diverging-divide
transforming-slide past each other
When rock is pulled apart it is called
Tension
What was the super continent called
Pangaea
What are convection currents
Heating and cooling of rock in the mantle
What type of plate boundary is most associated with Earthquakes
Transforming
When a plate sinks below another plate when there's a convergent boundary it is called
subduction
When rock slides past rock its called
Shearing
Which layer of the Earth is solid and has the most pressure
Inner core
Which layer is the only liquid layer and is responsible for Earth's Magnetic Field
The Outer Core
What is the Epicenter?
The point where the earthquakes originates
The Point on the surface where we experience the Earthquake
Diverging boundaries create
Rifts
What type of fault is associated with the three types of stress on a rock
normal fault-tension
reverse fault-compression
Strike-slip fault-shearing
Describe the difference between plates and faults
Plates are what the Earth's crust is broken into
Faults are breaks in the rock
Describe Lithosphere and Asthenosphere
Lithosphere is the rock layer that consists of the crust and the upper mantle
Asthenosphere is the plastic like section of the upper mantle
What do Scientist use seismographs to determine
Earth's composition
Explain what happens when continental continental plates collide, when continental oceanic collide and when oceanic oceanic collides
c-c folded mountains
c-o volcanoes
c-c volcanic arc of islands
Describe the position of the foot wall and hanging wall for normal and reverse faults
Normal fault- hanging wall is lower than the foot wall
Reverse fault- hanging wall is higher than the foot wall
What evidence supports continental drift, name 2
fossils
landforms and rocks
glacial evidence
continental fit