Layers
This is the outermost layer of the Earth that geologists have not yet drilled all the way through.
What is the crust?
These plates form the bottom of the sea floor.
What are oceanic plates?
This is the type of boundary that forms where two plates separate.
What is a divergent boundary?
Underwater Earthquakes can result in these huge waves.
What are tsunamis?
This is the name for the lower section of the mantle where convection currents occur.
What is the asthenosphere?
This layer of the Earth is the thickest.
What is the mantle?
This type of plate is older and thicker.
What are continental plates?
Convergent collision boundaries between continental plates result in this type of land form.
What are mountains?
Basalt is the primary rock type of these plates.
What are the oceanic plates?
Hardened magma forms this type of rock.
What is basalt?
This layer of the Earth is composed of mostly iron and nickel.
What is the core?
Continental plates are mostly composed of this rock type.
What is granite.
One plate sinking beneath the other happens at this type of boundary.
What is convergent subduction.
This deep ocean formation formed when two oceanic plates converged and subducted.
What is the Mariana Trench?
This is the name of a super-continent that existed before Pangaea.
What is Rodinia?
This layer is under extreme pressure but is still molten liquid.
What is the outer core.
These currents within the liquid part of the mantle allow the plates to flow.
What is convection?
This type of boundary is where most earthquakes occur.
What is a transform boundary?
These formations occur at convergent oceanic boundaries.
What is a trench or underwater volcano?
What is dense/density?
Due to the immense pressure placed on the inner core it is in this state.
Why is the inner core solid?
This plate type will subduct because it is more dense.
What is an oceanic plate?
A divergent boundary allows magma to flow up out of the mantle creating a new layer of this.
What is new lithosphere?
What is a transform boundary?
This is the least likely land form to occur at a convergent boundary between two continental plates.
What is an underwater volcano?