Mountains

4. one in which one side of the fault, the hanging wall, moves up and over the other side, the foot wall
6. Occurs when the stability of a slope of land shifts from stable to unstable condition
8. The imaginary surface bisecting the limbs of the fold
11. A dip-slip fault in which the block above the fault has moved downward relative to the block below

1. A type of fold in structural geology where the younger layers of rock are closer to the center of the fold structure
2. A raised elongated block of the earth's crust lying between two faults.
3. A structural trap formed by the folding of rock strata into an arch-like shape
5. a reverse fault in which the fault plane dipping angle is less than 45 degrees
7. a break of natural origin in a layer or body of rock that lacks visible or measurable movement parallel to the surface of the fracture
9. A projecting landform such as a spur of a mountain range
10. An elongated block of the earth's crust lying between two faults and displaced downward relative to the blocks on either side, as in a rift valley