Question 1

Calcareous shells will not accumulate on the ocean floor when the water depth exceeds about 4,500 meters (around 15,000 feet).

Accepted Answer

A) True 
 B)False

Question 2

-Calcareous oozes are represented by the number(s) :

Accepted Answer

A)  1) 
B)  2) 
C)  4) 
D)  2 & 3.
E)  3 & 4.F) B) and D)
G) A) and E)

Question 3

Match the term or person with the appropriate phrase. You may use each answer once, more than once or not at all.
-abyssal clay

Accepted Answer

A)  cosmogenous sediment
B)  hydrogenous sediment
C)  lithogenous (terrigenous) sediment
D)  biogenous sedimentE) A) and B)
F) A) and C)

Question 4

-Compare and contrast marine environments that favor the deposition of siliceous and calcareous oozes.

Accepted Answer

Marine environments that favor the depos...

Question 5

All of the following are true concerning neritic sediment deposits except:

Accepted Answer

A)  they may contain coarse-grained sand and rock fragments in the sediments.
B)  they may contain sediments of lithogenous origin.
C)  they may contain sediments transported from rivers onto the continental shelf.
D)  they may form in shallow coastal waters.
E)  they are primarily composed of calcareous deposits of biological origin.F) None of the above
G) A) and B)

Question 6

Match the term or person with the appropriate phrase. You may use each answer once, more than once or not at all.
-diatomaceous ooze

Accepted Answer

A)  cosmogenous sediment
B)  hydrogenous sediment
C)  lithogenous (terrigenous) sediment
D)  biogenous sedimentE) All of the above
F) A) and B)

Question 7

Pelagic clays contain lots of material that settles to the seafloor through the water column and are:

Accepted Answer

A)  less than 30% biogenous material.
B)  more than 30% biogenous material.
C)  more than 30% hydrogenous material.
D)  less than 30% neritic material.
E)  more than 30% neritic material.F) All of the above
G) B) and E)

Question 8

Calcium carbonate is most likely to dissolve in water with which characteristics?

Accepted Answer

A)  low carbon dioxide and warmer temperatures
B)  lots of carbon dioxide and colder temperatures
C)  lots of carbon dioxide and warmer temperatures
D)  low pressure and warmer temperatures
E)  low pressure and colder temperaturesF) C) and D)
G) A) and D)

Question 9

Examine the five words and/or phrases and determine the relationship among the majority of words/phrases. Choose the one option that does not fit the pattern.

Accepted Answer

A)   biogenous
B)   calcareous
C)   cosmogenous
D)   hydrogenous
E)   lithogenousF) C) and D)
G) B) and E)

Question 10

Sediments produced because of chemical reactions in seawater are called:

Accepted Answer

A)  cosmogenous.
B)  biogenous.
C)  hydrogenous.
D)  lithogenous.
E)  volcanogenic.F) A) and E)
G) A) and D)

Question 11

Radiolarian oozes typically form near the equator.

Accepted Answer

A) True 
 B)False

Question 12

Match the term or person with the appropriate phrase. You may use each answer once, more than once or not at all.
-coccolithophores

Accepted Answer

A)  cosmogenous sediment
B)  hydrogenous sediment
C)  lithogenous (terrigenous) sediment
D)  biogenous sedimentE) None of the above
F) C) and D) D

Question 13

Examine the five words and/or phrases and determine the relationship among the majority of words/phrases. Choose the one option that does not fit the pattern.

Accepted Answer

A)   coccolithophores
B)   diatoms
C)   foraminiferans
D)   oolites
E)   radiolariansF) B) and D)
G) C) and D)

Question 14

Sediments that are poorly sorted were most likely deposited by:

Accepted Answer

A)  a glacier.
B)  a river delta.
C)  organisms
D)  a volcanic eruption.
E)  the wind.F) A) and C)
G) B) and C) A

Question 15

-The sediments that are produced in areas of high primary productivity are indicated by the number(s) :

Accepted Answer

A)  1) 
B)  2) 
C)  3) 
D)  2 & 3.
E)  3 & 4.F) D) and E)
G) A) and E)

Question 16

Match the term or person with the appropriate phrase. You may use each answer once, more than once or not at all.
-Wentworth Scale

Accepted Answer

A)  depth at which calcium carbonate begins to dissolve
B)  microscopic biogenous sediment
C)  associated with submarine canyons and deep-sea alluvial fans
D)  depth at which all calcium carbonate is in solution (i.e. dissolved) 
E)  associated with glacial depositsF) particle size classificationG) A) and B)
H) A) and E) F

Question 17

All of the following statements are true of ocean sediments except:

Accepted Answer

A)  ocean sediments are thickest in pelagic waters overlying the oceanic ridges.
B)  ocean sediments can include the fossilized remains of ancient marine life.
C)  ocean sediments may form from the remains of living organisms falling to the ocean floor.
D)  ocean sediments include the remains of ancient rocks of cosmic origin.
E)  ocean sediments may be composed of chemical precipitates such as calcium carbonate or manganese dioxide.F) C) and D)
G) A) and B)

Question 18

Sediments derived from weathered rock and volcanic activities are called biogenous sediments.

Accepted Answer

A) True 
 B)False

Question 19

All of the following are hydrogenous sediments except:

Accepted Answer

A)  evaporites.
B)  halites.
C)  manganese nodule.
D)  phosphates.
E)  stromatolites.F) D) and E)
G) A) and E)

Question 20

Tektites are glassy rock fragments created during impact events.

Accepted Answer

A) True 
 B)False

Exam 4: Marine Sediments

Calcareous shells will not accumulate on the ocean floor when the water depth exceeds about 4,500 meters (around 15,000 feet).

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-Calcareous oozes are represented by the number(s) :

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Match the term or person with the appropriate phrase. You may use each answer once, more than once or not at all. -abyssal clay

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-Compare and contrast marine environments that favor the deposition of siliceous and calcareous oozes.

Correct AnswerAnswered by ExamLex AIMarine environments that favor the depos...View AnswerShow Answer

All of the following are true concerning neritic sediment deposits except:

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Match the term or person with the appropriate phrase. You may use each answer once, more than once or not at all. -diatomaceous ooze

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Pelagic clays contain lots of material that settles to the seafloor through the water column and are:

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Calcium carbonate is most likely to dissolve in water with which characteristics?

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Examine the five words and/or phrases and determine the relationship among the majority of words/phrases. Choose the one option that does not fit the pattern.

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Sediments produced because of chemical reactions in seawater are called:

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Radiolarian oozes typically form near the equator.

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Match the term or person with the appropriate phrase. You may use each answer once, more than once or not at all. -coccolithophores

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Examine the five words and/or phrases and determine the relationship among the majority of words/phrases. Choose the one option that does not fit the pattern.

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Sediments that are poorly sorted were most likely deposited by:

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-The sediments that are produced in areas of high primary productivity are indicated by the number(s) :

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Match the term or person with the appropriate phrase. You may use each answer once, more than once or not at all. -Wentworth Scale

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All of the following statements are true of ocean sediments except:

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Sediments derived from weathered rock and volcanic activities are called biogenous sediments.

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All of the following are hydrogenous sediments except:

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Tektites are glassy rock fragments created during impact events.

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Marine environments that favor the depos...
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D

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A

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F

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