Geology Mountain Building

Folded mountains form ___.

• when a state of isostasy occurs
• when continents collide
• when continents diverge
• after huge earthquakes

The oldest layer of an anticline is located ___

• on an incline
• within a syncline
• in the center of the fold
• on the bottom of the fold

The type of stress that squeezes and shortens a body is __

• compression.
• tension.
• shear.
• deposition.

What is subduction?

• one plate collides with another
• one plate destroys another
• one plate goes beneath another
• one plate divides another

A fold where the youngest rock layer is in the center is called a(n) _____

• monocline.
• decline.
• syncline.
• anticline.

How does a reverse fault form?

• The hanging wall moves upward relative to the footwall.
• Compression thrusts the fault into reverse.
• Blocks slide past each other.
• The hanging wall moves downward relative to the footwall.

Materials that respond to stress by bending or deforming without breaking are ___

• ductile.
• brittle.
• faulted.
• isostatic.

The rock below the fault plane is known as the ___

• footwall.
• fracture.
• hanging wall.
• hinge.

How do faults and folds compare?

• Faults are bends in rock where rocks move, and folds are breaks in rocks.
• Faults are breaks in rock where rocks move, and folds are bends in rock.
• Faults are breaks in rock where rocks do not move, and folds are bends in rock.
• Faults are bends in rock where rocks do not move, and folds are breaks in rock.

The type of stress that stretches and pulls a body apart is ___.

• strain
• tension
• stress
• compression