Question 1

The present ________ represent rejuvenation following uplift in Late Tertiary time.

Accepted Answer

A)  Appalachian Mountains 
B)  Alps 
C)  Himalayan Mountains 
D)  Ural Mountains 
E)  Sierra Nevada Mountains 
A)  Appalachian Mountains 
B)  Alps 
C)  Himalayan Mountains 
D)  Ural Mountains 
E)  Sierra Nevada Mountains A

Question 2

Weathering and erosion play no role in the development of mountains.

Accepted Answer

A) True 
 B)False  False

Question 3

Volcanic rocks, mostly _______, accumulate near a convergent plate boundary.

Accepted Answer

A)  shales 
B)  sandstones 
C)  granites 
D)  andesites 
E)  marbles 
A)  shales 
B)  sandstones 
C)  granites 
D)  andesites 
E)  marbles D

Question 4

The region of a continent that has been structurally stable for a long period of time is called the ______.

Accepted Answer

A)  dome 
B)  basin 
C)  Precambrian shield 
D)  craton 
E)  mountain range 
A)  dome 
B)  basin 
C)  Precambrian shield 
D)  craton 
E)  mountain range

Question 5

A Precambrian shield, an area of no sedimentary rocks, covers much of eastern and northern Canada.

Accepted Answer

A) True 
 B)False

Question 6

At the close of the Paleozoic, eastern North America was attached to what is now _______.

Accepted Answer

A)  Europe and Asia 
B)  China and South America 
C)  India and Antarctica 
D)  Africa and China 
E)  Europe and Africa 
A)  Europe and Asia 
B)  China and South America 
C)  India and Antarctica 
D)  Africa and China 
E)  Europe and Africa

Question 7

A cycle of splitting of a supercontinent, opening of an ocean basin, followed by closing of the basin and collision of continents is known as a Wilson Cycle.

Accepted Answer

A) True 
 B)False

Question 8

The _____ is(are) the product of oceanic-continental convergence and Earth's second highest mountain belt.

Accepted Answer

A)  Appalachians 
B)  Himalayas 
C)  Andes 
D)  Basin and Range 
E)  Sierra Nevada 
A)  Appalachians 
B)  Himalayas 
C)  Andes 
D)  Basin and Range 
E)  Sierra Nevada

Question 9

A ______ is the source of sedimentary and volcanic material accumulating along a convergent boundary.

Accepted Answer

A)  subduction zone 
B)  magmatic arc 
C)  suspect terrane 
D)  mid-oceanic ridge 
E)  folded mountain range 
A)  subduction zone 
B)  magmatic arc 
C)  suspect terrane 
D)  mid-oceanic ridge 
E)  folded mountain range

Question 10

A(n) __________ is an episode of intense deformation of the rocks of a region.

Accepted Answer

A)  isostatic adjustment 
B)  geosyncline 
C)  orogeny 
D)  buoyancy event 
E)  basin to dome event 
A)  isostatic adjustment 
B)  geosyncline 
C)  orogeny 
D)  buoyancy event 
E)  basin to dome event

Question 11

Geologists regard most bodies of ultramafic rock as being _______.

Accepted Answer

A)  intrusions formed during the accumulation stage 
B)  due to gravitational collapse and spreading 
C)  due to lithospheric delamination 
D)  areas left by block faulting and uplift 
E)  mantle material faulted into the crust during orogeny 
A)  intrusions formed during the accumulation stage 
B)  due to gravitational collapse and spreading 
C)  due to lithospheric delamination 
D)  areas left by block faulting and uplift 
E)  mantle material faulted into the crust during orogeny

Question 12

A _____ terrane has rock types and ages that do not seem to be related to the rest of the geology of a mountain belt.

Accepted Answer

A)  mixed 
B)  coupled 
C)  partial 
D)  integrated 
E)  suspect 
A)  mixed 
B)  coupled 
C)  partial 
D)  integrated 
E)  suspect

Question 13

The Himalayan Mountains formed as the result of ______ convergence.

Accepted Answer

A)  ocean-continent 
B)  arc-continent 
C)  ocean-ocean 
D)  arc-ocean 
E)  continent-continent 
A)  ocean-continent 
B)  arc-continent 
C)  ocean-ocean 
D)  arc-ocean 
E)  continent-continent

Question 14

During the last couple of decades, geologist have used a _____ approach to gain insight into the growth and wearing away of mountains.

Accepted Answer

A)  tectonic 
B)  erosional 
C)  weathering 
D)  system 
E)  climatic 
A)  tectonic 
B)  erosional 
C)  weathering 
D)  system 
E)  climatic

Question 15

The cycle of splitting of a supercontinent, opening of an ocean basin, followed by closing of the basin and collision of the continents, is known as a ________.

Accepted Answer

A)  Wegener plan 
B)  Wilson Cycle 
C)  delamination plan 
D)  Hess Process 
E)  Vine-Mathews system 
A)  Wegener plan 
B)  Wilson Cycle 
C)  delamination plan 
D)  Hess Process 
E)  Vine-Mathews system

Question 16

The continental crust is _______ beneath mountain belts than under the craton.

Accepted Answer

A)  thinner 
B)  thicker 
C)  the same thickness 
D)  more felsic 
E)  more dense 
A)  thinner 
B)  thicker 
C)  the same thickness 
D)  more felsic 
E)  more dense

Question 17

________ beneath the Basin and Range helps to explain the extensive rhyolitic and basaltic eruptions that occurred tens of millions of years after the last orogeny.

Accepted Answer

A)  Obduction 
B)  Delamination 
C)  Wilson Cycles 
D)  Subduction 
E)  Thickening of the continental crust by "rooting" 
A)  Obduction 
B)  Delamination 
C)  Wilson Cycles 
D)  Subduction 
E)  Thickening of the continental crust by "rooting"

Question 18

Most of the world's mountains existing today are a result of ____.

Accepted Answer

A)  intense deformation 
B)  isostasy 
C)  weathering and erosion 
D)  intense deformation and isostasy 
E)  intense deformation, isostasy, and weathering and erosion 
A)  intense deformation 
B)  isostasy 
C)  weathering and erosion 
D)  intense deformation and isostasy 
E)  intense deformation, isostasy, and weathering and erosion

Question 19

Some accreted terranes were microcontinents similar to present day New Zealand.

Accepted Answer

A) True 
 B)False

Question 20

Late stage normal faulting in a mountain range is a result of _______.

Accepted Answer

A)  volcanism 
B)  igneous intrusions 
C)  vertical uplift or extension 
D)  sea-floor spreading 
E)  geosyncline formation 
A)  volcanism 
B)  igneous intrusions 
C)  vertical uplift or extension 
D)  sea-floor spreading 
E)  geosyncline formation

Exam 20: Mountain Belts and the Continental Crust

The present ________ represent rejuvenation following uplift in Late Tertiary time.

Weathering and erosion play no role in the development of mountains.

Volcanic rocks, mostly _______, accumulate near a convergent plate boundary.

The region of a continent that has been structurally stable for a long period of time is called the ______.

A Precambrian shield, an area of no sedimentary rocks, covers much of eastern and northern Canada.

At the close of the Paleozoic, eastern North America was attached to what is now _______.

A cycle of splitting of a supercontinent, opening of an ocean basin, followed by closing of the basin and collision of continents is known as a Wilson Cycle.

The _____ is(are) the product of oceanic-continental convergence and Earth's second highest mountain belt.

A ______ is the source of sedimentary and volcanic material accumulating along a convergent boundary.

A(n) __________ is an episode of intense deformation of the rocks of a region.

Geologists regard most bodies of ultramafic rock as being _______.

A _____ terrane has rock types and ages that do not seem to be related to the rest of the geology of a mountain belt.

The Himalayan Mountains formed as the result of ______ convergence.

During the last couple of decades, geologist have used a _____ approach to gain insight into the growth and wearing away of mountains.

The cycle of splitting of a supercontinent, opening of an ocean basin, followed by closing of the basin and collision of the continents, is known as a ________.

The continental crust is _______ beneath mountain belts than under the craton.

________ beneath the Basin and Range helps to explain the extensive rhyolitic and basaltic eruptions that occurred tens of millions of years after the last orogeny.

Most of the world's mountains existing today are a result of ____.

Some accreted terranes were microcontinents similar to present day New Zealand.

Late stage normal faulting in a mountain range is a result of _______.

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