Stresses and Faults Flashcards
Stresses
force that will be exerted on an area
Types of Stress
Tension, Compression, Shearing, Uniform
Tension _____ rocks ____
pulls apart
Compression _____
pushes rocks together
Shearing makes the rocks _____
slide along each other
Force acts in all directions
Uniform Stress
Faults are ____
breaks in the weak parts of the Earth’s crust
Most obvious indication of earthquake activity
Faults
Faults are usually slanted and broken at an angle anywhere between ________
45º and 65º
The angle between surface and the fault
The dip angle (or the dip)
Ceiling side of the fault
Hanging wall
Floor side of the wall
Foot wall
You can locate ____ along the stretches of fault lines
valuable mineral deposits
Types of dip faults
Normal dip-slip and reverse dip-slip
A combo of strike slip and dip slip
Oblique slip