Folding and Faulting

Question 1

What is rock structure

Answer 1

the arrangement of rocks by the deformation caused by folding and faulting

Question 2

What 3 forces are involved with rock deformation

Answer 2

Compression, Tenstion and Shearing

Question 3

What PB is Tensioning a rock and what is the result

Answer 3

Constructive, Faulting

Question 4

What PB is Shearing a rock and what is the result

Answer 4

Transform, Faulting

Question 5

What PB is Compressing a rock and what is the result

Answer 5

Desturctive, Folding/Faulting

Question 6

What structure does folds contain

Answer 6

A bent or Buckled fold

Question 7

What does strong pressure and high temp. do to a rock

Answer 7

Causes it to fold like plastic (Ductile)

Question 8

What is an Anticline

Answer 8

Upfold or arch

Question 9

What is a Syncline

Answer 9

Downfold

Question 10

What is a Limb

Answer 10

‘arm’ of a fold

Question 11

What are the 4 types of folding

Answer 11

Simple Fold, Asymmetrical Fold, Overfold, Overthrust Fold

Question 12

Give 3 mountains that are of Caledonian Orogeny

Answer 12

Scotland, Scandinavia and the Appalachians

Question 13

How long ago were mountains of Caledonian Orogeny formed

Answer 13

400mya (Oldest)

Question 14

What were the sedimentary rocks of Caledonian Orogeny melted into

Answer 14

Quartz and Schist

Question 15

Give 3 mountains that are of Armorican Orogeny

Answer 15

Coneragh, Galtee and knockmealdown

Question 16

How long ago were mountains of Armorican Orogeny formed

Answer 16

250mya (middle in age)

Question 17

What was the limestone rock of Armorican Orogeny melted into

Answer 17

ORS

Question 18

What does ORS mean

Answer 18

omnidirectional relief and steepness

Question 19

Give 3 mountains that are of Alpine Orogeny

Answer 19

Himalayas, Rockies, Andes

Question 20

How long ago were mountains of Alpine Orogeny formed

Answer 20

30mya (youngest)

Question 21

How does doming occur

Answer 21

Magma intrusion forces it to buldge

Question 22

Give an example of a doming mt

Answer 22

Sliene Bloom

Question 23

What does intense pressure of faulting cause

Answer 23

Fractures called joints

Question 24

What is Faulting caused by

Answer 24

Compression, Tension and Shearing

Question 25

What is a plateu in faulting mts

Answer 25

Flat land that has been uplifted

Question 26

What is scarp

Answer 26

The cliff formed by vertical displacement of rock

Question 27

What are the 3 types of Faulting

Answer 27

Normal faults, Reverse faults and Tear faults

Question 28

What are reverse faults a result of

Answer 28

Compression

Question 29

Which way does the slab of rock move in a reverse fault

Answer 29

One block is forced upward

Question 30

Give a location of a reverse fault

Answer 30

Killarney to Mallow

Question 31

If a reverse fault's footwall fall down what is formed

Answer 31

A horst of block mountain

Question 32

Give a location of a horst of block mountain

Answer 32

Bunbulben, Co.Sligo

Question 33

What are normal faults a result of

Answer 33

Tension

Question 34

Which way does the slab of rock move in a normal fault

Answer 34

Vertical, one block slips past another

Question 35

Give a location of a normal fault

Answer 35

Kingscourt, Co.Cavan

Question 36

What is the feature of a normal fault

Answer 36

Graben (rift Valley)

Question 37

What distance can rock from a normal fault be displaced by

Answer 37

Over 600m

Question 38

Give a location of a rift valley formed by a normal fault

Answer 38

Rhine Rift Valley

Question 39

What is a tear fault

Answer 39

When one block is displaced horizontally to another

Question 40

Give an example of a tear fault

Answer 40

Leannan tear fault in Donegal

Question 41

What fault line was created due to a tear fault

Answer 41

San Andreas Fault line