Question 1

Shales containing high amounts of organic matter are typically what color?

Accepted Answer

A)  Orange. 
B)  Red. 
C)  Black. 
D)  Green. 
A)  Orange. 
B)  Red. 
C)  Black. 
D)  Green.

Question 2

A sandstone containing quartz and feldspar grains in a fine- grained clay matrix is probably a(n):

Accepted Answer

A)  quartzite. 
B)  graywacke. 
C)  quartz arenite. 
D)  arkose. 
A)  quartzite. 
B)  graywacke. 
C)  quartz arenite. 
D)  arkose.

Question 3

All of the following were present in ancient environments of dolostone formation EXCEPT:

Accepted Answer

A)  oxygen- rich environments. 
B)  magnesium ions. 
C)  sulfate- consuming bacteria. 
D)  calcium carbonate crystals. 
A)  oxygen- rich environments. 
B)  magnesium ions. 
C)  sulfate- consuming bacteria. 
D)  calcium carbonate crystals.

Question 4

Sedimentary structures such as graded bedding, cross- bedding, and ripple marks are formed:

Accepted Answer

A)  after lithification. 
B)  during lithification. 
C)  during or after deposition, but before lithification. 
D)  during any of the above stages. 
A)  after lithification. 
B)  during lithification. 
C)  during or after deposition, but before lithification. 
D)  during any of the above stages.

Question 5

In filling the dry Mediterranean salt basin, world ocean levels dropped about:

Accepted Answer

A)  10 meters. 
B)  2000 meters. 
C)  100 meters. 
D)  There was no change in world ocean levels. 
A)  10 meters. 
B)  2000 meters. 
C)  100 meters. 
D)  There was no change in world ocean levels.

Question 6

Which of the following statements about dolostone is NOT true?

Accepted Answer

A)  It forms in tropical or semitropical climates in which extensive evaporation of seawater occurs. 
B)  It is similar to limestone except for the inclusion of magnesium in its chemical composition. 
C)  A sulfate- consuming bacteria has been shown to be associated with dolomite precipitation. 
D)  Marine evaporative processes are currently converting extensive areas of limestone to dolostone. 
A)  It forms in tropical or semitropical climates in which extensive evaporation of seawater occurs. 
B)  It is similar to limestone except for the inclusion of magnesium in its chemical composition. 
C)  A sulfate- consuming bacteria has been shown to be associated with dolomite precipitation. 
D)  Marine evaporative processes are currently converting extensive areas of limestone to dolostone.

Question 7

The main difference between a breccia and a conglomerate is:

Accepted Answer

A)  color. 
B)  mineral composition. 
C)  particle shape. 
D)  particle size. 
A)  color. 
B)  mineral composition. 
C)  particle shape. 
D)  particle size.

Question 8

Sedimentary structures allow a geologist to determine:

Accepted Answer

A)  the age of detrital sediments. 
B)  the composition of detrital sediments. 
C)  the depositional environment of detrital sediments. 
D)  the source of detrital sediments. 
A)  the age of detrital sediments. 
B)  the composition of detrital sediments. 
C)  the depositional environment of detrital sediments. 
D)  the source of detrital sediments.

Question 9

What is the difference between diagenesis and lithification?

Accepted Answer

Diagenesis refers to the workings of hea

Question 10

Sediments are classified as either detrital sediment or chemical sediment on the basis of:

Accepted Answer

A)  particle size. 
B)  whether they react to chemicals such as hydrochloric acid. 
C)  the amount of fluid within the sediments. 
D)  the source of the sediments. 
A)  particle size. 
B)  whether they react to chemicals such as hydrochloric acid. 
C)  the amount of fluid within the sediments. 
D)  the source of the sediments.

Question 11

Practical uses of shales include all of the following EXCEPT:

Accepted Answer

A)  a source of energy. 
B)  clay for bricks and ceramics. 
C)  a component of cement. 
D)  a source of water in wells. 
A)  a source of energy. 
B)  clay for bricks and ceramics. 
C)  a component of cement. 
D)  a source of water in wells.

Question 12

Oolitic limestone forms as the result of:

Accepted Answer

A)  the precipitation of silica in concentric coats around particles of calcium carbonate. 
B)  calcium carbonate precipitated as pearls by oysters around invading sand particles. 
C)  organic secretions of silica around calcium carbonate particles. 
D)  the precipitation of calcium carbonate in concentric coats around grains of sand. 
A)  the precipitation of silica in concentric coats around particles of calcium carbonate. 
B)  calcium carbonate precipitated as pearls by oysters around invading sand particles. 
C)  organic secretions of silica around calcium carbonate particles. 
D)  the precipitation of calcium carbonate in concentric coats around grains of sand.

Shales containing high amounts of organic matter are typically what color?

A sandstone containing quartz and feldspar grains in a fine- grained clay matrix is probably a(n):

All of the following were present in ancient environments of dolostone formation EXCEPT:

Sedimentary structures such as graded bedding, cross- bedding, and ripple marks are formed:

In filling the dry Mediterranean salt basin, world ocean levels dropped about:

Which of the following statements about dolostone is NOT true?

The main difference between a breccia and a conglomerate is:

Sedimentary structures allow a geologist to determine:

What is the difference between diagenesis and lithification?

Sediments are classified as either detrital sediment or chemical sediment on the basis of:

Practical uses of shales include all of the following EXCEPT:

Oolitic limestone forms as the result of:

A First Look at Planet Earth - Its Origins, Systems, and Tectonic Plates

Minerals

Igneous Rocks and Processes

Volcanoes and Volcanism

Weathering - the Breakdown of Rocks

Metamorphism and Metamorphic Rocks

Telling Time Geologically

Earth Structures - Folds, Faults, and Fabrics

Earthquakes

The Earths Interior - Whats Going on Down There

Plate Tectonics and the Formation of the Earths Oceans

Continental Tectonics and the Formation of the Earths Continents

Mass Movement

Streams and Floods

Groundwater

Glaciers and Ice Ages

Deserts and the Work of Winds

Shores and Coastal Processes

Human Use of the Earths Resources Appendices Glossary

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Exam 6: Sedimentary Processes, Environments, and Rocks

Shales containing high amounts of organic matter are typically what color?

A sandstone containing quartz and feldspar grains in a fine- grained clay matrix is probably a(n):

All of the following were present in ancient environments of dolostone formation EXCEPT:

Sedimentary structures such as graded bedding, cross- bedding, and ripple marks are formed:

In filling the dry Mediterranean salt basin, world ocean levels dropped about:

Which of the following statements about dolostone is NOT true?

The main difference between a breccia and a conglomerate is:

Sedimentary structures allow a geologist to determine:

What is the difference between diagenesis and lithification?

Sediments are classified as either detrital sediment or chemical sediment on the basis of:

Practical uses of shales include all of the following EXCEPT:

Oolitic limestone forms as the result of:

A First Look at Planet Earth - Its Origins, Systems, and Tectonic Plates

Minerals

Igneous Rocks and Processes

Volcanoes and Volcanism

Weathering - the Breakdown of Rocks

Metamorphism and Metamorphic Rocks

Telling Time Geologically

Earth Structures - Folds, Faults, and Fabrics

Earthquakes

The Earths Interior - Whats Going on Down There

Plate Tectonics and the Formation of the Earths Oceans

Continental Tectonics and the Formation of the Earths Continents

Mass Movement

Streams and Floods

Groundwater

Glaciers and Ice Ages

Deserts and the Work of Winds

Shores and Coastal Processes

Human Use of the Earths Resources Appendices Glossary

Filters