Ch. 4.4 Flashcards Preview

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Flashcards in Ch. 4.4 Deck (23):
1

The amount of force per unit area on a given material.

Stress

2

The process by which the shape of a rock changes because of stress.

Deformation

3

The type of stress that occurs when an object is squeezed.

Compression

4

The type of stress that occurs when forces act to stretch an object.

Tension

5

The bending of rock layers due to stress.

Folding

6

An upward-arching fold.

Anticline

7

Downward, troughlike folds.

Syncline

8

A horizontal fold.

Monocline

9

The blocks of crust on each side of the fault.

Fault Blocks

10

A side of a fault.

Hanging Wall

11

A break in a body of rock along which one block slides relative to another.

Fault

12

Another side of a fault.

Footwall

13

A fault where the hanging wall moves down relative to the footwall.

Normal Fault

14

A fault where the hanging wall moves up relative to the footwall.

Reverse Fault

15

A fault that forms when opposing forces cause rock to break and move horizontally.

Strike-slip Fault

16

A type of mountain that forms when rock layers are squeezed together and pushed upward.

Folded Mountain

17

A type of mountain that forms when tension causes large blocks of the Earth's crust to drop down relative to other blocks.

Fault-block Mountain

18

A type of mountain that forms when magma rises to the Earth's surface and erupts.

Volcanic Mountain

19

A spot in the Pacific Ocean with many active volcanoes.

Ring of Fire

20

The rising of regions of the Earth's crust to higher elevations.

Uplift

21

The sinking of regions of the Earth's crust to lower elevations.

Subsidence

22

A way areas of the Earth rise without deformation.

Rebound

23

A set of deep cracks that forms between two tectonic plates that are pulling away from each other.

Rift Zone