4.1 - Forces in Earth's Crust

Where do faults occur?

Along plate boundaries

A fold in rock that bends upwards into an arch is a(n) _______________.

Anticline

Compression causes the formation of __________.

Anticlines & synclines

The stress force that squeezes rock until it folds or breaks is ________.

Compression

At what type of boundary do reverse faults occur?

Convergent boundary

At what type of boundary do normal faults occur?

Divergent boundary

True/False - A footwall sits above a fault.

False

The collision of two plates causes the formation of _____________ mountains.

Folded

Stress is a (n) _______________________ that acts on rock to change its shape and volume.

Force

Reverse faults move in opposite directions of ______ faults.

Normal

When two plates move away from each other ____________ faults are created.

Normal

A large area of flat land elevated high above sea level is a(n) ___________.

Plateau

A fault in which the rocks on either side move sideways past each other is a ______.

Slip-strike fault

The stress force that pulls on the crust and thins rock in the middle is called ________________.

Tension

Name the 3 types of stress.

Tension, compression, & shearing.

Shearing occurs where two plate slip past each other. What type of boundary is this?

Transform

True/False - Stress adds energy to rock.

True

Tension can cause the formation of fault-block mountains or ________.

Valleys

When do faults occur?

When enough stress builds up that the rock breaks