Faulting and folding

Question 1

What are the four main types of fault?

Answer 1

Normal
Reverse
Strike-slip
Thrust

Question 2

Movement of hanging wall and footwall on normal faults?

Answer 2

Hanging wall down
Footwall up

Question 3

Where are the rocks on the normal fault in relation to the fault plane?

Answer 3

Footwall= rocks underneath fault plane
Hanging wall= rocks above the fault plane

Question 4

Is a normal fault dip-slip?

Answer 4

Yes

Question 5

Normal fault, force?

Answer 5

Tensional (crust extended)

Question 6

Normal fault degree/angle of dip?

Answer 6

Steep, 60-65 degrees

Question 7

Movement of hanging wall and footwall on reverse faults?

Answer 7

Hanging wall up
Footwall down

Question 8

Where are the rocks on the normal fault in relation to the fault plane?

Answer 8

Footwall= rocks above fault plane
Hanging wall= rocks underneath the fault plane

Question 9

Is a reverse fault dip-slip?

Answer 9

Yes

Question 10

Can reverse faults be normal faults reactivated?

Answer 10

Yes

Question 11

In a reverse fault, how can the beds of rock be repeated?

Answer 11

In a borehole

Question 12

Reverse fault, forces?

Answer 12

Compressional (push rocks together)

Question 13

Angle of dip/degree of reverse faults?

Answer 13

Steep 60-65 degrees

Question 14

Thrust fault, which is the upthrown side and which is the downthrown side?

Answer 14

Upthrown side= hanging wall
Downthrown side= footwall

Question 15

Thrust fault forces?

Answer 15

Formed via compression

Question 16

What is the angle of dip/degree of a thrust fault?

Answer 16

<45 degrees

Question 17

Thrust fault, dip-slip (direction of movement is same as the fault)?

Answer 17

Yes

Question 18

Thrust fault, which side is above the fault and which side is below the fault?

Answer 18

Side above fault= hanging wall
Side below fault= footwall

Question 19

Is a strike-slip fault compressional?

Answer 19

No, it is neither compressional or tensional, it is shear

Question 20

Degree/ angle of dip of strike-slip fault?

Answer 20

Vertical

Question 21

What does strike-slip mean?

Answer 21

Same movement as surface direction of the fault

Question 22

Strike-slip fault, hanging and footwall directions?

Answer 22

There is not a hanging wall or a footwall in relation to strike-slip faults