Question 1

This photograph shows chalk.How is it formed?

Accepted Answer

A) evaporation of water in a lake or sea 
B) accumulation of microscopic organisms composed of calcium carbonate 
C) precipitation from seawater early in Earth's history 
D) accumulation of silica-rich organisms or mixing of seawater and groundwater 
A) evaporation of water in a lake or sea 
B) accumulation of microscopic organisms composed of calcium carbonate 
C) precipitation from seawater early in Earth's history 
D) accumulation of silica-rich organisms or mixing of seawater and groundwater

Question 2

Which of the following does NOT correctly match a rock with a possible environment in which that rock forms?

Accepted Answer

A) salt-evaporation of water 
B) gypsum-evaporation of water 
C) coal-deep-sea organic-rich black shale 
D) chert-accumulation of tiny silica-rich creatures 
E) chert-mixing of seawater and groundwater 
A) salt-evaporation of water 
B) gypsum-evaporation of water 
C) coal-deep-sea organic-rich black shale 
D) chert-accumulation of tiny silica-rich creatures 
E) chert-mixing of seawater and groundwater

Question 3

Which of the following units was most likely deposited along an ancient mountain front?

Accepted Answer

A) unit 5 
B) unit 4 
C) unit 3 
D) unit 2 
E) unit 1 
A) unit 5 
B) unit 4 
C) unit 3 
D) unit 2 
E) unit 1

Question 4

Which of the following situations would result in angular clasts?

Accepted Answer

A) transport of the clasts over long distance 
B) working of clasts by waves on a beach 
C) steep slopes in a mountain 
D) dunes formed by wind 
A) transport of the clasts over long distance 
B) working of clasts by waves on a beach 
C) steep slopes in a mountain 
D) dunes formed by wind

Question 5

What type of rock is shown in this photograph?

Accepted Answer

A) conglomerate 
B) breccia 
C) sandstone 
D) siltstone or shale 
A) conglomerate 
B) breccia 
C) sandstone 
D) siltstone or shale

Question 6

Which of the following are NOT common in landscapes formed by carbonate rocks?

Accepted Answer

A) sinkholes 
B) fractures widened by dissolution 
C) well-defined layers (beds) 
D) outcrops with pits or holes 
E) all of these are common in carbonate landscapes 
A) sinkholes 
B) fractures widened by dissolution 
C) well-defined layers (beds) 
D) outcrops with pits or holes 
E) all of these are common in carbonate landscapes

Question 7

Which of the following sites would have the slowest moving or least energetic current?

Accepted Answer

A) mountain streams at A 
B) glacial streams at B 
C) braided river at C 
D) delta at D 
E) lake at E 
A) mountain streams at A 
B) glacial streams at B 
C) braided river at C 
D) delta at D 
E) lake at E

Question 8

Which environment is a setting that can deposit sand?

Accepted Answer

A) landslide 
B) evaporating lake 
C) deep ocean away from land 
D) turbidity currents along a continental slope 
E) all of these 
A) landslide 
B) evaporating lake 
C) deep ocean away from land 
D) turbidity currents along a continental slope 
E) all of these

Question 9

What typically happens to the size,shape,and sorting of clasts as they are transported from steep mountains toward more gentle settings?

Accepted Answer

A) the size of the clasts increases 
B) the clasts become more rounded 
C) the sediment becomes more poorly sorted 
D) all of these 
A) the size of the clasts increases 
B) the clasts become more rounded 
C) the sediment becomes more poorly sorted 
D) all of these

Question 10

Which of the following is a good interpretation of the environmental significance of an attribute of a sedimentary rock?

Accepted Answer

A) Fossils indicate that sediment was deposited on land. 
B) Large cross beds in well-sorted sandstone usually indicate deposition by wind. 
C) Mudcracks are formed in deep-water environments where sand and mud can be deposited in thin layers. 
D) Large,angular,poorly sorted clasts reflect a large amount of transport. 
E) None of these. 
A) Fossils indicate that sediment was deposited on land. 
B) Large cross beds in well-sorted sandstone usually indicate deposition by wind. 
C) Mudcracks are formed in deep-water environments where sand and mud can be deposited in thin layers. 
D) Large,angular,poorly sorted clasts reflect a large amount of transport. 
E) None of these.

Question 11

How does a graded bed form?

Accepted Answer

A) an abrupt change in the composition of the sediment 
B) a gradual decrease in the strength of the current over time 
C) piling of sediment down the front of a dune or ripple 
D) a gradual change in the climate of the region 
E) a gradual change in global climate 
A) an abrupt change in the composition of the sediment 
B) a gradual decrease in the strength of the current over time 
C) piling of sediment down the front of a dune or ripple 
D) a gradual change in the climate of the region 
E) a gradual change in global climate

Question 12

What type of rock is shown in this photograph?

Accepted Answer

A) conglomerate 
B) breccia 
C) sandstone 
D) siltstone or shale 
A) conglomerate 
B) breccia 
C) sandstone 
D) siltstone or shale

Question 13

What sedimentary environments dominate the area around Vancouver,British Columbia?

Accepted Answer

A) deposition of sediment carried by a braided river 
B) large landslides that blocked a narrow ocean channel 
C) large ocean waves that carry large boulders far inland 
D) a scenic offshore reef that protects the coastline from large waves 
A) deposition of sediment carried by a braided river 
B) large landslides that blocked a narrow ocean channel 
C) large ocean waves that carry large boulders far inland 
D) a scenic offshore reef that protects the coastline from large waves

Question 14

Gradational boundaries between different sedimentary rock types can form from:

Accepted Answer

A) slowing of the current over time 
B) a progressive change from one environment to another 
C) a gradual rise or fall in sea level 
D) all of these 
A) slowing of the current over time 
B) a progressive change from one environment to another 
C) a gradual rise or fall in sea level 
D) all of these

Question 15

Which of the following is a typical way in which siltstone and shale are expressed in the landscape?

Accepted Answer

A) soft slopes covered by small,loose chips 
B) slopes covered by loose debris from overlying rocks 
C) valleys and other low areas carved into the landscape 
D) badlands 
E) all of these 
A) soft slopes covered by small,loose chips 
B) slopes covered by loose debris from overlying rocks 
C) valleys and other low areas carved into the landscape 
D) badlands 
E) all of these

Question 16

Which of the following is a correct statement about resources in sedimentary rocks?

Accepted Answer

A) Groundwater mostly resides in the pore spaces between grains and in fractures. 
B) Oil and natural gas migrate down until they are trapped at depth. 
C) Coal forms from the burial of deep-water organic shale. 
D) The most important component of cement comes from siltstone. 
E) Uranium does not commonly occur in sandstone. 
A) Groundwater mostly resides in the pore spaces between grains and in fractures. 
B) Oil and natural gas migrate down until they are trapped at depth. 
C) Coal forms from the burial of deep-water organic shale. 
D) The most important component of cement comes from siltstone. 
E) Uranium does not commonly occur in sandstone.

Question 17

Fine-grained sediment would most likely be present at:

Accepted Answer

A) the beach at A and lagoon at B 
B) the lagoon at B and coral reef at C 
C) the coral reef at C and deep seafloor at D 
D) the beach at A and coral reef at C 
E) the lagoon at B and deep seafloor at D 
A) the beach at A and lagoon at B 
B) the lagoon at B and coral reef at C 
C) the coral reef at C and deep seafloor at D 
D) the beach at A and coral reef at C 
E) the lagoon at B and deep seafloor at D

Question 18

Which of the following environments would likely have clasts smaller than sand?

Accepted Answer

A) a weak current 
B) steep slopes 
C) dunes formed by wind 
D) all of these 
A) a weak current 
B) steep slopes 
C) dunes formed by wind 
D) all of these

Question 19

Which of the following is the most used sedimentary resource?

Accepted Answer

A) cement 
B) salt 
C) sand and gravel 
D) coal 
E) petroleum 
A) cement 
B) salt 
C) sand and gravel 
D) coal 
E) petroleum

Question 20

Which of the following processes is NOT considered physical weathering?

Accepted Answer

A) near-surface fracturing 
B) frost wedging 
C) prying by plant roots 
D) thermal expansion 
E) oxidation 
A) near-surface fracturing 
B) frost wedging 
C) prying by plant roots 
D) thermal expansion 
E) oxidation

This photograph shows chalk.How is it formed?

Which of the following does NOT correctly match a rock with a possible environment in which that rock forms?

Which of the following units was most likely deposited along an ancient mountain front?

Which of the following situations would result in angular clasts?

What type of rock is shown in this photograph?

Which of the following are NOT common in landscapes formed by carbonate rocks?

Which of the following sites would have the slowest moving or least energetic current?

Which environment is a setting that can deposit sand?

What typically happens to the size,shape,and sorting of clasts as they are transported from steep mountains toward more gentle settings?

Which of the following is a good interpretation of the environmental significance of an attribute of a sedimentary rock?

How does a graded bed form?

What type of rock is shown in this photograph?

What sedimentary environments dominate the area around Vancouver,British Columbia?

Gradational boundaries between different sedimentary rock types can form from:

Which of the following is a typical way in which siltstone and shale are expressed in the landscape?

Which of the following is a correct statement about resources in sedimentary rocks?

Fine-grained sediment would most likely be present at:

Which of the following environments would likely have clasts smaller than sand?

Which of the following is the most used sedimentary resource?

Which of the following processes is NOT considered physical weathering?

The Nature of Geology

Investigating Geologic Questions

Plate Tectonics

Earth Materials

Igneous Environments

Volcanoes and Volcanic Hazards

Deformation and Metamorphism

Geologic Time

The Seafloor and Continental Margins

Mountains, basins, and Continents

Earthquakes and Earths Interior

Climate, weather, and Their Influences on Geology

Glaciers, shorelines, and Changing Sea Levels

Weathering, soil, and Unstable Slopes

Streams and Flooding

Water Resources

Energy and Mineral Resources

Geology of the Solar System

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Exam 7: Sedimentary Environments and Rocks

This photograph shows chalk.How is it formed?

Which of the following does NOT correctly match a rock with a possible environment in which that rock forms?

Which of the following units was most likely deposited along an ancient mountain front?

Which of the following situations would result in angular clasts?

What type of rock is shown in this photograph?

Which of the following are NOT common in landscapes formed by carbonate rocks?

Which of the following sites would have the slowest moving or least energetic current?

Which environment is a setting that can deposit sand?

What typically happens to the size,shape,and sorting of clasts as they are transported from steep mountains toward more gentle settings?

Which of the following is a good interpretation of the environmental significance of an attribute of a sedimentary rock?

How does a graded bed form?

What type of rock is shown in this photograph?

What sedimentary environments dominate the area around Vancouver,British Columbia?

Gradational boundaries between different sedimentary rock types can form from:

Which of the following is a typical way in which siltstone and shale are expressed in the landscape?

Which of the following is a correct statement about resources in sedimentary rocks?

Fine-grained sediment would most likely be present at:

Which of the following environments would likely have clasts smaller than sand?

Which of the following is the most used sedimentary resource?

Which of the following processes is NOT considered physical weathering?

The Nature of Geology

Investigating Geologic Questions

Plate Tectonics

Earth Materials

Igneous Environments

Volcanoes and Volcanic Hazards

Deformation and Metamorphism

Geologic Time

The Seafloor and Continental Margins

Mountains, basins, and Continents

Earthquakes and Earths Interior

Climate, weather, and Their Influences on Geology

Glaciers, shorelines, and Changing Sea Levels

Weathering, soil, and Unstable Slopes

Streams and Flooding

Water Resources

Energy and Mineral Resources

Geology of the Solar System

Filters