Plate tectonics Flashcards
Is the INNER CORE of the Earth solid or liquid?
Solid
What is the MANTEL made of?
Magma
Name a type of crust!
Oceanic, Continental
Which type of crust is denser, Oceanic or Continental?
Oceanic
What rock is formed on the ocean floor?
Basalt (an igneous rock)
What is the name of the point where earthquakes begin INSIDE the crust?
The focus
What is the name of the centre of the earthquake on the earths surface?
Epicentre
What is the type of wave energy that travels towards the surface during an earthquake?
Seismic waves
Name the instrument used to measure earthquakes
Seismometer
What is the scale used to measure earthquakes
Richter scale
What is the name of the tectonic plate in europe?
The eurasian plate
The San Andreas Fault is which type of plate boundary?
Transform boundary
Name a place where a hotspot can be found?
Somewhere where the crust is thin like Iceland
Do volcanoes occur at destructive plate boundaries?
Yes
What are 2 types of volcanoes?
Shield and Strato
What is the name of the cloud of hot ash and rock that travels down the side of a volcano?
Pyroclastic flow
Where is magma stored beneath the surface?
The magma chamber
What is the name for a volcano that is “sleeping”
Dorment
What is a convergent boundary?
When to plates are moving towards each other
What is a transform boundary?
When two plates are side by side moving in opposite directions
What is a divergent boundary?
Where two plates move away from one another
Name the four layers of the earth!
Crust, Mantel, Outer Core, Inner core
How big is the crust usually?
50km
Name a second type of destructive boundary!
Subductive
