Question 1

In thrust faulting,___________ .

Accepted Answer

A)  horizontal, tensional stresses drive the deformation
B)  grabens develop on the footwall block
C)  the crust is shortened and thickened
D)  the hanging wall block slips downward along the thrust fault C

Question 2

A(n)___________fault develops in response to horizontal, tensional stresses in crustal rocks.

Accepted Answer

normal

Question 3

The term___________ refers specifically to geologic mountain building.

Accepted Answer

A)  orogenesis
B)  orogneisses
C)  orthogeny
D)  orthogonal A

Question 4

The___________ mountains in North America were formed by a continent- continent collision in the Paleozoic.

Accepted Answer

The answer of The___________ mountains in North America were formed...

Question 5

The ___________in California is the boundary between the North American and Pacific plates.

Accepted Answer

A)  San Luis Obispo thrust fault
B)  Sierra Nevada frontal fault
C)  San Andreas strike- slip fault
D)  San Francisco normal fault

Question 6

In a thrust fault, the hanging wall moves _ relative to the footwall, and the fault plane is oriented at a(n)___________angle.

Accepted Answer

The answer of In a thrust fault, the hanging wall...

Question 7

A horst is___________ .

Accepted Answer

A)  an uplifted block bounded by two reverse faults
B)  an uplifted block bounded by two normal faults
C)  a downdropped block bounded by two normal faults
D)  a downdropped block bounded by two reverse faults

Question 8

Large circular downwarped structures are called___________ .

Accepted Answer

A)  anticlines
B)  basins
C)  domes
D)  synclines

Question 9

___________are fractures showing little or no movement of the rocks on either side.

Accepted Answer

The answer of ___________are fractures showing little or no movement...

Question 10

The concept that rocks of the crust and upper mantle are floating in gravitational balance is known as ___________.

Accepted Answer

A)  isomonism
B)  isobration
C)  isostasy
D)  isotropy

Question 11

A transform fault is ____________ .

Accepted Answer

A)  a strike- slip fault that forms the boundary between tectonic plates
B)  a reverse fault that steepens into a thrust fault
C)  the rift bounding faults on a mid- ocean ridge
D)  a dip- slip fault connecting an anticline with a syncline

Question 12

A thrust fault is best described as ____________ .

Accepted Answer

A)  a vertical, normal fault
B)  a steeply inclined, oblique- slip fault
C)  a low- angle, reverse fault
D)  a near vertical, strike- slip fault

Question 13

Any accreted crustal fragment that has a geologic history distinct from that of the adjoining fragments is termed a(n)___________.

Accepted Answer

The answer of Any accreted crustal fragment that has a...

Question 14

The east coast of North America is a good example of a(n)___________tectonic margin.

Accepted Answer

The answer of The east coast of North America is...

Question 15

The mountains and valleys of the Basin and Range Province of the western United States formed in response to ___________.

Accepted Answer

A)  strike- slip faulting and hanging wall block uplifts
B)  reverse faults and large displacement, thrust faulting
C)  normal faulting and horizontal compression
D)  tensional stresses and normal- fault movements

Question 16

Folded limestones that occur high in the Himalayas were originally deposited as sediments in a ___________.

Accepted Answer

A)  late Paleozoic syncline north of the Tibetan Plateau
B)  deep ocean trench along the southern margin of India
C)  marine basin between India and Eurasia
D)  Cenozoic fault basin between Africa and Arabia

Question 17

Are horsts and grabens bounded by normal or reverse faults?

Accepted Answer

The answer of Are horsts and grabens bounded by normal...

Question 18

The Black Hills of South Dakota are a good example of a(n)___________.

Accepted Answer

A)  anticline
B)  dome
C)  basin
D)  syncline

Question 19

Which one of the following is an example of an isostatic movement?

Accepted Answer

A)  arching of strata at the center of a dome
B)  numerous aftershocks associated with deep- focus earthquakes
C)  uplift of areas recently covered by thick, continental ice sheets
D)  stream downcutting following a drop in sea level

Question 20

In a normal fault ____________.

Accepted Answer

A)  the hanging wall block below an inclined fault plane moves downward relative to the other block
B)  the footwall block above an inclined fault plane moves upward relative to the other block
C)  the hanging wall block above an inclined fault plane moves downward relative to the other block
D)  the footwall block below an inclined fault plane moves downward relative to the other block

Exam 11: Crustal Deformation and Mountain Building