Plates
Lithospheric plates move approximately this far each year.
What is 1 to 12 cm per year?
This stress causes the lithosphere and crust to stretch and thin.
What is tension?
When the hanging wall slips down the footwall at an angle, this type of fault occurs.
What is a normal fault?
At ocean-to-ocean convergent plate boundary, one of the two plates always does this.
What is subducts?
A break or crack in rock.
What is a fracture?
The plate boundary where plates are moving toward each other.
What is convergent plate boundary?
This stress causes the lithosphere and crust to become thicker.
What is compression?
When the hanging wall is pushed up the footwall at an angle, this type of fault occurs.
What is a reverse fault?
At ocean-to-continent convergent plate boundaries, this plate always subducts.
What is the oceanic plate?
The Mid-Atlantic Ridge is an example of this kind of plate boundary.
What is a divergent plate boundary?
The plate boundary where plates are moving away from each other.
What is divergent plate boundary?
This stress causes fractures and faults.
What is shear stress?
When the plates slide horizontally past each other.
What is a strike-slip fault?
At continent-to-continent divergent plate boundaries, this takes place.
What is continental rifting?
This kind of island generally forms near oceanic-oceanic boundaries.
What is volcanic?
The plate boundary where two plates slide horizontally sideways past each other.
What is a transform plate boundary?
When the shear stress builds and the rocks suddenly move to relieve the stress, this event occurs.
What is an earthquake?
This type of stress causes reverse faults.
What is compression?
The San Andreas fault is an example of this type of plate boundary.
What is a transform plate boundary?
This results when the rock on one side of a fracture moves relative to the other side.
What is a fault?
These violent geologic formations are most likely to form at convergent oceanic-continental boundaries.
What are volcanoes?
The rigid part of the mantle and the crust make up this.
What is the lithosphere?
This type of stress causes strike-slip faults.
What is shear stress?
Two active volcanoes in California.
What are Lassen Peak and Mount Shasta?
Unlike the typical incline direction of normal and reverse faults, this is the typical direction of a strike-slip fault.
What is vertical?