Faults
If the upper block dropped in relation to the lower block
Normal fault
The angle of the fault face is the __
dip
Can we predict earthquakes
No
cooler, denser rock wants to move __
downward
Rocks under stress crack but don't move which would form a __
joint
Normal and reverse faults are specific examples of __ faults
Dip-slip
the cardinal direction of the fault face is the __
Strike
Do people feel every earthquake
No
The amount of strain that a material can endure without breaking is related to its __
Volcanic rocks may form joints in __ patterns
hexagonal
If a fault's motion is parallel to its dip (up or down)
dip-slip fault
When a rock moves as it cracks it is a __
Fault
A specific type of reverse fault called __ is if the dip is less than 45 degrees
Thrust fault
A rock's stretchiness is its
elasticity
The forming of joints as rocks break produce __ seismic waves
weak
The upper block rose in relation to the lower block
Reverse fault
Strong elastic rocks that flex slightly but don't move can be called a __ fault which will build up shear stresses
locked
Instrument that only detects earth waves
seismometer
Stress fracture planes are called
joints
The shaking of the ground caused by the sudden movement of large blocks of rock along a fault
Earthquake
If the only motion along the fault is horizontal
strike-slip fault
Factures in the lithosphere are __
faults
Earthquake
areas where plates slide past each other in opposite directions along long cracks in the crust are __ boundaries
transform boundaries
Can real faults be a combination of both strike and dip-slip faults
Yes