Question 1

_______are further concentrated in a residual brine after NaCl is crystallized.

Accepted Answer

A)  Potassium, magnesium, and bromine
B)  Magnesium, calcium, and sulfur
C)  Calcium, sulfur, and titanium
D)  Iron, sodium, and chlorineE) None of the above
F) All of the above

Question 2

_______is composed mainly of lithified, organic debris that accumulated in ancient, heavily forested swamps.

Accepted Answer

The answer of _______is composed mainly of lithified, organic debris...

Question 3

Red, brown and yellow sandstones are cemented by oxides of_______ .

Accepted Answer

The answer of Red, brown and yellow sandstones are cemented...

Question 4

Which is the most common chemical sedimentary rock?

Accepted Answer

The answer of Which is the most common chemical sedimentary...

Question 5

Which of the following applies to the basic constituents of halite, gypsum, and sylvite?

Accepted Answer

A)  transported and deposited as mud- sized particles
B)  transported as dissolved ions; deposited by evaporation
C)  transported as dissolved ions; deposited as detrital mud
D)  transported as detrital mud; deposited by evaporationE) C) and D)
F) None of the above

Question 6

A graywacke is_______ .

Accepted Answer

A)  a sandstone with the sand grains embedded in a clay- rich matrix
B)  a dark, organic- rich, chemical sedimentary rock containing small crystals of halite
C)  a dark- gray, calcite- rich mudstone or shale containing pyrite
D)  a limestone with abundant, sand- sized, quartz grainsE) B) and D)
F) All of the above

Question 7

Which statement concerning sedimentary rocks is NOT true?

Accepted Answer

A)  They may contain fossils that provide clues about ancient life forms.
B)  They are composed of particles and constituents derived from weathering and erosion of other rocks.
C)  They were originally deposited at depth below the bottom of the sea.
D)  They probably show some evidence of stratification.E) A) and D)
F) A) and B)

Question 8

_______is the most common type of chemical sedimentary rock.

Accepted Answer

A)  Limestone
B)  Quartz sandstone
C)  Chert
D)  Phosphate rockE) A) and C)
F) A) and B)

Question 9

Nonclastic textures are common in which of the following sedimentary rocks?

Accepted Answer

A)  cherty conglomerates
B)  boulder breccias
C)  sandstones
D)  limestonesE) A) and B)
F) B) and C)

Question 10

Detrital grains of which mineral(s) are extremely rare in detrital sediments? Why?

Accepted Answer

A)  Feldspars; they occur only in granites.
B)  Calcite; it is soft and relatively soluble.
C)  Clays; they are rare in soils and regolith.
D)  Quartz; it is very hard and insoluble.E) A) and C)
F) A) and B)

Question 11

Detrital sedimentary rocks are classified (named) based on the_______ .

Accepted Answer

A)  degree of compaction and lithification
B)  compositions of soluble minerals
C)  colors of the cementing minerals
D)  grain sizes of the detrital particlesE) A) and D)
F) B) and C)

Question 12

Which of the following sedimentary rocks would you expect to have originally been deposited by fast- moving streams?

Accepted Answer

A)  mudstone
B)  greywacke
C)  conglomerate
D)  oolitic limestoneE) None of the above
F) A) and B)

Question 13

Coal beds originate in_______ .

Accepted Answer

A)  shallow lakes in a dry, desert region
B)  freshwater coastal swamps and bogs
C)  channels of fast- moving streams
D)  deep, marine basins below wave actionE) B) and C)
F) All of the above

Question 14

_______is not a common cementing agent for sandstones.

Accepted Answer

A)  Quartz
B)  Fluorite
C)  Calcite
D)  Iron oxidesE) All of the above
F) None of the above

Question 15

The sedimentary rocks, salt and gypsum, are deposited by what process?

Accepted Answer

The answer of The sedimentary rocks, salt and gypsum, are...

Question 16

_______, a common mineral found in igneous rocks, is the most abundant mineral in detrital sedimentary rocks.

Accepted Answer

A)  Orthoclase
B)  Calcite
C)  Quartz
D)  BiotiteE) B) and D)
F) All of the above

Question 17

Which property of sediment describes the range of different grain sizes in a detrital sedimentary rock?

Accepted Answer

The answer of Which property of sediment describes the range...

Question 18

_______cement produces bright- red and yellow colors in some sandstone.

Accepted Answer

A)  Clay
B)  Iron oxide
C)  Calcite
D)  QuartzE) B) and C)
F) A) and D)

Question 19

Fossils often provide valuable information about climatic conditions of the geologic past. How else might a geologist infer ancient climatic conditions using sedimentary rocks? (Hint: Think in terms of the conditions necessary to form certain rocks and also features/structures found in sedimentary rocks.)

Accepted Answer

Coral are produced in warm, sh...

Question 20

_______sandstone contains abundant feldspar, suggesting that the sand was derived by weathering and erosion of granitic bedrock.

Accepted Answer

A)  Lignitic
B)  Quartz- rich
C)  Oolitic
D)  ArkosicE) A) and B)
F) A) and C)

Exam 7: Sedimentary Rocks

Which of the following sedimentary rocks would you expect to have originally been deposited by fast- moving streams?

Correct Answer
verified

Detrital sedimentary rocks are classified (named) based on the_______ .

Correct Answer
verified

Which of the following applies to the basic constituents of halite, gypsum, and sylvite?

Correct Answer
verified

_______are further concentrated in a residual brine after NaCl is crystallized.

Correct Answer
verified

_______is not a common cementing agent for sandstones.

Correct Answer
verified

_______cement produces bright- red and yellow colors in some sandstone.

Correct Answer
verified

_______sandstone contains abundant feldspar, suggesting that the sand was derived by weathering and erosion of granitic bedrock.

Correct Answer
verified

Coal beds originate in_______ .

Correct Answer
verified

Red, brown and yellow sandstones are cemented by oxides of_______ .

Correct Answer
verified

A graywacke is_______ .

Correct Answer
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Correct Answer
verified
Coral are produced in warm, sh...
View Answer

_______, a common mineral found in igneous rocks, is the most abundant mineral in detrital sedimentary rocks.

Correct Answer
verified

Nonclastic textures are common in which of the following sedimentary rocks?

Correct Answer
verified

_______is composed mainly of lithified, organic debris that accumulated in ancient, heavily forested swamps.

Correct Answer
verified

Which is the most common chemical sedimentary rock?

Correct Answer
verified

Which property of sediment describes the range of different grain sizes in a detrital sedimentary rock?

Correct Answer
verified

_______is the most common type of chemical sedimentary rock.

Correct Answer
verified

Which statement concerning sedimentary rocks is NOT true?

Correct Answer
verified

Detrital grains of which mineral(s) are extremely rare in detrital sediments? Why?

Correct Answer
verified

The sedimentary rocks, salt and gypsum, are deposited by what process?

Correct Answer
verified

Exam 7: Sedimentary Rocks

Which of the following sedimentary rocks would you expect to have originally been deposited by fast- moving streams?

Correct AnswerverifiedShow Answer

Detrital sedimentary rocks are classified (named) based on the_______ .

Correct AnswerverifiedShow Answer

Which of the following applies to the basic constituents of halite, gypsum, and sylvite?

Correct AnswerverifiedShow Answer

_______are further concentrated in a residual brine after NaCl is crystallized.

Correct AnswerverifiedShow Answer

_______is not a common cementing agent for sandstones.

Correct AnswerverifiedShow Answer

_______cement produces bright- red and yellow colors in some sandstone.

Correct AnswerverifiedShow Answer

_______sandstone contains abundant feldspar, suggesting that the sand was derived by weathering and erosion of granitic bedrock.

Correct AnswerverifiedShow Answer

Coal beds originate in_______ .

Correct AnswerverifiedShow Answer

Red, brown and yellow sandstones are cemented by oxides of_______ .

Correct AnswerverifiedShow Answer

A graywacke is_______ .

Correct AnswerverifiedShow Answer

Correct AnswerverifiedCoral are produced in warm, sh...View AnswerShow Answer

_______, a common mineral found in igneous rocks, is the most abundant mineral in detrital sedimentary rocks.

Correct AnswerverifiedShow Answer

Nonclastic textures are common in which of the following sedimentary rocks?

Correct AnswerverifiedShow Answer

_______is composed mainly of lithified, organic debris that accumulated in ancient, heavily forested swamps.

Correct AnswerverifiedShow Answer

Which is the most common chemical sedimentary rock?

Correct AnswerverifiedShow Answer

Which property of sediment describes the range of different grain sizes in a detrital sedimentary rock?

Correct AnswerverifiedShow Answer

_______is the most common type of chemical sedimentary rock.

Correct AnswerverifiedShow Answer

Which statement concerning sedimentary rocks is NOT true?

Correct AnswerverifiedShow Answer

Detrital grains of which mineral(s) are extremely rare in detrital sediments? Why?

Correct AnswerverifiedShow Answer

The sedimentary rocks, salt and gypsum, are deposited by what process?

Correct AnswerverifiedShow Answer

Correct Answer
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verified
Coral are produced in warm, sh...
View Answer

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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