Question 1

When limestone becomes chemically altered so that half of the calcium atoms are replaced by magnesium,the resultant rock is termed ________.

Accepted Answer

A)  agate
B)  dolostone
C)  jasper
D)  travertine

Question 2

Lake deposits tend to be composed of finely laminated mudstones,indicative of ________.

Accepted Answer

A)  quiet water
B)  oscillating waves
C)  bioturbation
D)  current flow

Question 3

The majority of the rocks that are formed at the surface of Earth are ________ rocks.

Accepted Answer

A)  intrusive igneous
B)  extrusive igneous
C)  sedimentary
D)  metamorphic

Question 4

The image below shows a series of graded beds.How many full sets of graded beds are shown?

Accepted Answer

A)  1
B)  3
C)  12
D)  15

Question 5

Cementation of sediments occurs when minerals ________ the spaces between sediment grains.

Accepted Answer

A)  swell into
B)  pass through
C)  precipitate in
D)  dissolve in

Question 6

What is the difference between the formations of chalk versus chert?

Accepted Answer

A)  They have different grain sizes.
B)  They are made of different source materials.
C)  Chalk is terrestrial;chert is marine.
D)  Chalk is biochemical;chert is chemical.

Question 7

Scour marks are an indicator of ________.

Accepted Answer

A)  submarine landslides
B)  quiet,still water
C)  arid environments
D)  current flow

Question 8

In which of the following three basin types might you be able to find oil forming and why? Rift basin,passive-margin basin,and foreland basin.

Accepted Answer

Passive-margin basins are form...

Question 9

Biochemical limestones are dominated by carbonate mud and fragments of ________.

Accepted Answer

A)  siliceous shells of planktonic diatoms and foraminifera
B)  skeletons of marine invertebrates made of calcite and aragonite
C)  the phosphatic bones of fish
D)  the organic breakdown products of wood and leaves from trees

Question 10

Which of the following is FALSE? As compared to arkose,quartz sandstone ________.

Accepted Answer

A)  contains more angular grains
B)  does not contain significant amounts of feldspar
C)  is likely to be found farther away from weathering granitic source rock
D)  is considered to be more compositionally mature

Question 11

Lithification occurs ________.

Accepted Answer

A)  in the shallow subsurface
B)  at the surface of Earth
C)  deep under the ground
D)  high in the mountains

Question 12

Compaction and cementation of grains occur during ________.

Accepted Answer

A)  erosion
B)  lithification
C)  transport
D)  weathering

Question 13

Basins that form on the continental side of mountain ranges are called ________ basins.

Accepted Answer

A)  rift
B)  passive-margin
C)  foreland
D)  intracontinental

Question 14

Two major sources of energy,coal and oil shale,are considered ________ sedimentary rocks.

Accepted Answer

A)  clastic
B)  biochemical
C)  organic
D)  chemical

Question 15

Topset,foreset,and bottomset beds together are indicative of ________ environments.

Accepted Answer

A)  alluvial fan
B)  lake bottom
C)  delta
D)  deep-marine

Exam 6: Pages of Earth S Past: Sedimentary Rocks

The image below shows a series of graded beds.How many full sets of graded beds are shown?

Correct Answer
verified

When limestone becomes chemically altered so that half of the calcium atoms are replaced by magnesium,the resultant rock is termed ________.

Correct Answer
verified

Lithification occurs ________.

Correct Answer
verified

Two major sources of energy,coal and oil shale,are considered ________ sedimentary rocks.

Correct Answer
verified

Topset,foreset,and bottomset beds together are indicative of ________ environments.

Correct Answer
verified

Scour marks are an indicator of ________.

Correct Answer
verified

Compaction and cementation of grains occur during ________.

Correct Answer
verified

Which of the following is FALSE? As compared to arkose,quartz sandstone ________.

Correct Answer
verified

What is the difference between the formations of chalk versus chert?

Correct Answer
verified

The majority of the rocks that are formed at the surface of Earth are ________ rocks.

Correct Answer
verified

Biochemical limestones are dominated by carbonate mud and fragments of ________.

Correct Answer
verified

Basins that form on the continental side of mountain ranges are called ________ basins.

Correct Answer
verified

Lake deposits tend to be composed of finely laminated mudstones,indicative of ________.

Correct Answer
verified

Cementation of sediments occurs when minerals ________ the spaces between sediment grains.

Correct Answer
verified

In which of the following three basin types might you be able to find oil forming and why? Rift basin,passive-margin basin,and foreland basin.

Correct Answer
verified
Passive-margin basins are form...
View Answer

Exam 6: Pages of Earth S Past: Sedimentary Rocks

The image below shows a series of graded beds.How many full sets of graded beds are shown?

Correct AnswerverifiedShow Answer

When limestone becomes chemically altered so that half of the calcium atoms are replaced by magnesium,the resultant rock is termed ________.

Correct AnswerverifiedShow Answer

Lithification occurs ________.

Correct AnswerverifiedShow Answer

Two major sources of energy,coal and oil shale,are considered ________ sedimentary rocks.

Correct AnswerverifiedShow Answer

Topset,foreset,and bottomset beds together are indicative of ________ environments.

Correct AnswerverifiedShow Answer

Scour marks are an indicator of ________.

Correct AnswerverifiedShow Answer

Compaction and cementation of grains occur during ________.

Correct AnswerverifiedShow Answer

Which of the following is FALSE? As compared to arkose,quartz sandstone ________.

Correct AnswerverifiedShow Answer

What is the difference between the formations of chalk versus chert?

Correct AnswerverifiedShow Answer

The majority of the rocks that are formed at the surface of Earth are ________ rocks.

Correct AnswerverifiedShow Answer

Biochemical limestones are dominated by carbonate mud and fragments of ________.

Correct AnswerverifiedShow Answer

Basins that form on the continental side of mountain ranges are called ________ basins.

Correct AnswerverifiedShow Answer

Lake deposits tend to be composed of finely laminated mudstones,indicative of ________.

Correct AnswerverifiedShow Answer

Cementation of sediments occurs when minerals ________ the spaces between sediment grains.

Correct AnswerverifiedShow Answer

In which of the following three basin types might you be able to find oil forming and why? Rift basin,passive-margin basin,and foreland basin.

Correct AnswerverifiedPassive-margin basins are form...View AnswerShow Answer

Correct Answer
verified

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verified

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verified

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verified

Correct Answer
verified

Correct Answer
verified
Passive-margin basins are form...
View Answer