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The Earth Through Time, 10th Edition
by Harold L. Levin
CHAPTER 15—CENOZOIC EVENTS
Multiple Choice Questions
Select the best answer.
1.
Expansion of the seafloor during the Cenozoic has lead to the formation of
approximately __________ percent of the current ocean crust.
a. 50
b. 75
c. 33
d. 66
e. 25
2.
The creation of the Isthmus of Panama lead to the formation of what
ocean current?
a. Canary
b. Gulf Stream
c. South Pacific
d. Labrador
e. Equatorial
3.
Which two southern hemisphere continents split apart in the Cenozoic?
a. North and South Americas
b. Europe and Asia
c. Australia and Antarctica
d. Africa and Asia
e. Africa and Antarctica
4.
North America and Pacific plates came in contact with each other during
the Cenozoic forming which of the following features?
a. Appalachian mountains
b. Gulf of Mexico
c. Cascade Range
d. Yellowstone
e. San Andreas Fault
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5.
During much of the Cenozoic the eastern margin of North America was
___________.
a. active
b. passive
c. rifting
d. subducting
e. orogenic
6.
Cenozoic sediment accumulation in the Gulf Coast region exceeds
_____________ meters.
a. 1,000
b. 6,000
c. 12,000
d. 38,000
e. 124,000
7.
The Cenozoic Cordillera extended from Alaska southward to
____________.
a. Florida
b. California
c. Chile
d. Guatemala
e. Panama
8.
What is the name of the Paleocene Sea that was a remnant Cretaceous
epeiric sea?
a. Suak
b. Crystalline Calm
c. Sundance
d. Cannonball
e. Tippecanoe
9.
Low sulfur coal was deposited in _____________ during the Paleogene
a. forests
b. swamps
c. stream beds
d. volcanic craters
e. beaches
10.
The Green River Formation is a ______________depositional
environment containing varved shales.
a. fast moving rivers
b. mud flats
c. seas shores
d. saltwater lake
e. fresh water lake
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11.
The Green River Formation is well known for its _________ fossils.
a. fish
b. birds
c. plants
d. insects
e. amphibians
12.
The Badlands of South Dakota are floodplain deposits belonging to which
formation?
a. White River Formation
b. Green River Formation
c. Florissant beds
d. Wasatch Formation
e. Ft. Union Formation
13.
Paleoclimate indicators show a cooling trend in the
beginning___________.
a. Miocene Epoch
b. Late Eocene-Oligocene
c. earliest Paleogene
d. Pliocene
e. Holocene
14.
The modern Rocky Mountains topography resulted from ___________ in
the Miocene Epoch.
a. deposition
b. lava flows
c. uplift
d. normal faults
e. abnormal faults
15.
What is the fundamental mechanism responsible for the Basin and Range
Province?
a. compressing
b. shearing
c. collision
d. stretching
e. All the above
16.
The Basin and Range Province is characterized by block faulting along
_______.
a. reverse faults
b. thrust faults
c. uplift
d. normal fault
e. abnormal fault
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17.
During the Miocene Epoch volcanism along the western side of the Basin
and Range Province resulting in_______________.
a. compression
b. extensive lava flows
c. flat regions
d. fossil beds
e. All the above
18.
There are numerous reasons proposed for why the Basin and Range
Province formed. Which is not a proposed cause?
a. Collision of a microcontinent
b. Subduction of the East Pacific rise
c. Change in plate boundary style
d. Upward pressing of buoyant subducted slab
e. Convection currents
19.
The uplift of the Colorado Plateau resulted in which of the following?
a. molasse
b. flysche
c. glaciers
d. deep canyon
e. deltaics
20.
The Columbia Plateau is dominated by which rock type?
a. Sedimentary
b. Igneous
c. Metamorphic
d. Fossils
e. Glacial tills
21.
Cascade volcanism began approximately ____________ years ago.
a. 20 million
b. 2 billion
c. 4 million
d. 40 million
e. 100,000
22.
Cascade volcanism is driven by the introduction of ____________ into the
mantle by the descending plates?
a. lava
b. water
c. feldspar
d. quartz
e. carbon dioxide
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23.
Which of the following Cascade volcanoes erupted most recently?
a. Pompeii
b. Mt. St. Helens
c. Mt. Vesuvius
d. Mount Lassen
e. Mount Rainier
24.
Which of the following is responsible for Crater Lake?
a. Streams
b. Rifting
c. Meteorite impacts
d. Caldera formation
e. None of the above
25.
The Sierra Nevada formed along _____________.
a. thrust faults
b. reverse faults
c. strike slip faults
d. normal fault
e. Both a. and b.
26.
During the Paleogene Period the style of plate boundary in California
shifted to ______________.
a. convergent
b. transform
c. divergent
d. subduction
e. Both a. and d.
27.
Which of the following plates are remnants of the Farallon Plate?
a. Pacific
b. Sierra
c. Juan de Fuca
d. North American
e. African
28.
The collision between the North American and Pacific Plates resulted in
the Pacific Plate changing direction from _____________ to northwest.
a. north
b. south
c. east
d. west
e. southeast
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29.
The Pacific plate has managed to steal parts of North America including
_____________.
a. Oregon
b. Washington
c. Eastern California
d. South Pacific
e. Baja California
30.
What is the name given to marine sediments deposited between
elongated submarine banks found in the Alps?
a. Molasse
b. Obsidian
c. Schist
d. Flysh
e. None of the above
31.
India collision with Asia during the Miocene Epoch was marked by which
of the following events?
a. volcanism
b. folding
c. thrusting
d. granitic plutons
e. All of the above
32.
Basaltic lavas formed in the early Cenozoic Era in Scotland, Ireland,
Greenland, and other locations as a result of __________________.
a. Greenland rifting off of Europe
b. India colliding with Asia
c. Antarctica residing on the South Pole
d. North America subducting the Juan de Fuca plate
e. None of the above
33.
During Cenozoic time, Africa developed a ______________leading to
volcanism and fault controlled lakes.
a. subduction zone
b. rift valley
c. transform boundary
d. flatland
e. All but b.
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34.
At the beginning of the Cenozoic, Antarctica had a semitropical climate.
By the Miocene Epoch, Antarctica’s climate changed and snow began to
accumulate. What caused the change in climate?
a. Antarctica had recently moved on top of the South Pole
b. Extensive volcanism
c. Reduction of volcanism
d. Antarctica separated from Australia
e. Antarctica collided with Australia
35.
The Pleistocene Ice Age resulted in an increase in rainfall at __________.
a. poles
b. high latitudes
c. lower latitudes
d. nightfall
e. Both a. and b.
36.
The unsorted till deposits are formed by ________________.
a. Sediments being deposited by ice
b. Sediments being deposited by streams
c. Sediments being deposited by lakes
d. Sediments being deposited by wind
e. Sediments being deposited by ocean currents
37.
Currently parts of Canada’s crust are uplifting in response to the
_____________.
a. addition of modern continental glaciers
b. removal of continental glaciers
c. stream deposits in basins
d. exposure of the shield
e. All the above
38.
Eastern Washington State has a landscape that is referred to as
channeled scablands. What process produced this landscape?
a. Transgression
b. Regression
c. Flood basalts
d. Repeat failure of ice dams across a river
e. Wind
39.
The Ice Age appears to be related to changes in ______________.
a. speed of the Earth’s spin
b. appearance of vertebrate fossils
c. size of the continents
d. solar radiation
e. All the above
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40.
What is the wobble of the Earth’s axis called?
a. Rotation
b. Orbit
c. Precession
d. Tides
e. Projection
Answers to Questions
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
a
b
c
e
b
c
d
d
b
e
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
a
a
a
c
d
d
b
a
d
a
21.
22.
23.
24.
25.
26.
27.
28.
29.
30.
c
b
b
d
d
b
c
a
e
d
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31.
32.
33.
34.
35.
36.
37.
38.
39.
40.
e
a
b
d
c
a
b
d
d
c
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