-Stage 2.2-
Faults
Here are the main parts of a fault:
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Hanging Wall (H) - The block that rests on top of the fault
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Foot Wall (F) - The block the lies below the fault
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These are always the same no matter the direction of fault movement
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Normal Fault - When the hanging wall moves down and the foot wall moves up
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Extension - The large arrows on the side show the movement of the blocks. This is when the blocks move away from each other.
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Reverse Fault - Pretty much the opposite of a normal fault
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The hanging wall moves up while the foot wall moves down
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Compression - The blocks are pushed together
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Thrust Fault - A reverse fault that is extremely shallow (less than 30°)
There are 2 types of strike-slip faults depending on the direction of movement
Strike-Slip Fault - This is when two blocks slide past one another. The San Andreas Fault is a strike-slip fault
Right Lateral
Right Lateral - Say you were standing on the X, a right lateral is when the opposite block moves right compared to where you were standing
Left Lateral
Left Lateral - It is the opposite of a right lateral strike slip fault. When you are standing on the X, the opposite block moves to the left.