GEO LAB #12 Flashcards
1
Q
Fold
A
Up-warped or down-warped bends in rock layers with limbs on either side of an axial plane.
2
Q
Anticline
A
Up-warped fold with the oldest rocks exposed in the center.
3
Q
Syncline
A
Down-warped fold with the youngest rocks exposed in the center.
4
Q
Plunging Fold
A
Fold whose axis is no longer horizontal, plunging into the earth.
5
Q
Fault
A
Break or fracture in rock layers along which movement has occurred.
6
Q
Normal Fault
A
Fault where the hanging wall moves down relative to the foot wall.
7
Q
Reverse Fault
A
Fault where the hanging wall moves up relative to the foot wall.
8
Q
Thrust Fault
A
Reverse fault with a fault plane angle of less than 45° from the horizontal.
9
Q
Strike-Slip Fault
A
Fault where the earth has moved laterally along the fault plane.
