Fracturing and Faulting

Question 1

Continuous curve in rock layers

Answer 1

Folds

Question 2

What is the cause of a fold?

Answer 2

Ductile Deformation

Question 3

Downward sag

Answer 3

Syncline ^U^

Question 4

Upward arch

Answer 4

Anticline ^n^

Question 5

Straight sides of a fold

Answer 5

Limb

Question 6

Curved center of fold

Answer 6

Axis or nose

Question 7

What causes most folds?

Answer 7

Almost always Compressional Stress

Question 8

Fold style in which both sides match

Answer 8

Symmetrical fold

Question 9

Fold style where one side is steeper

Answer 9

Asymmetrical fold

Question 10

Fold style where one side is upside down

Answer 10

Overturned fold

Question 11

Both sides fall

Answer 11

Recumbent fold

Question 12

As folds erode, the strongest rock layers make the _____ topographic features

Answer 12

Highest

Question 13

Does fold shape = Topography?

Answer 13

NO

Question 14

Exposed fault surface

Answer 14

Scarp

Question 15

Fault black you could walk on

Answer 15

Footwall

Question 16

What can move either up or down?

Answer 16

Footwall

Hanging-wall

Question 17

Fault block that hangs over your head

Answer 17

Hanging-wall

Question 18

hanging-wall block slides down the fault plane

Answer 18

Normal Faults

Question 19

Fault movement creates a gap stretching the rocks

Answer 19

Normal Faults

Question 20

The hanging wall block slides up the fault

Answer 20

Reverse Faults

Question 21

Movement creates an overlap bunching up the rocks

Answer 21

Reverse Faults

Question 22

Compressional stress (subduction/collision)

Answer 22

Reverse Faults

Question 23

The hanging wall block slides up a very flat fault plant

Answer 23

Thrust Faults

Question 24

This creates a enormous overlap (easier to go further)

Answer 24

Thrust Faults

Question 25

= Most mountains (subduction/collision)

Answer 25

Thrust Faults

Question 26

Motion is all horizontal, no up or down. Each side of the fault moves sideways

Answer 26

Strike Slip Faults

Question 27

Shear stress (transform zones)

Answer 27

Strike Slip Faults

Question 28

Rocks can be moved 100’s to 1000’s of miles apart

Answer 28

Strike Slip Faults

Question 29

Extentional stress (rifting/spreading)

Answer 29

Normal Faults