Tectonic Hazards Flashcards
How thick is the crust
5-100km
How thick is the mantle?
2900km
1800miles
How hot is the inner core?
5430 Celsius
How thick is the inner core?
1260 km
750
What is the lithosphere?
The crust and the upper mantle
What is the crust made of?
Rocks and soil
What is the mantle made of?
Thick rock, soft and moving
What is the inner core made of?
Iron and nickel
What is the outer core made of?
Iron and nickel
How hot is the outer core?
5000°C
Why does the crust move around?
Convection currents of hot rock rise, very slowly, cooling sync the movement of these currents are so powerful that they moved the crust around
What is a constructive plate Boundry?
Two plates move away from each other magma rises becomes lava cools, and makes new land
What is a destructive/oceanic continental boundary?
Two plates push against each other on the heavy oceanic crust, gets subducted underneath the other plate the oceanic plate sticks and locks as it tries to slide under the continental plate in the heat from the friction monster subducting plate does multiplayer is now magma
What is a destructive/collision plate boundary?
Two continental plates crash into each other as they collide earthquakes the rocks between the plates, get pushed up in folded it can make mountains ranges
What is a Conservative plate Boundry?
Two plates are sliding in the same direction, but one plate is moving faster than the other. The snug as they go past each other pressure and tension builds up as the place lock together. Eventually, they break causing a sudden surge forward.
