Question 1

Calcite is the original mineral precipitated as the hard parts of shells and corals.

Accepted Answer

A) True 
 B)False

Question 2

A feldspar-rich sandstone is called arkose.

Accepted Answer

A) True 
 B)False

Question 3

Interbedded cherts with banded iron formations, or with volcanic ash deposits, are taken to mean that the Precambrian oceans had more dissolved silica or more volcanism.

Accepted Answer

A) True 
 B)False

Question 4

What does a sediment layer bounded by two bedding planes indicate?

Accepted Answer

A) a succession of three or more different facies 
B) a long hiatus 
C) a single episode of sedimentation 
D) a geologic catastrophe 
A) a succession of three or more different facies 
B) a long hiatus 
C) a single episode of sedimentation 
D) a geologic catastrophe

Question 5

What kind of rock are most dripstones and stalactites in caves?

Accepted Answer

A) chert 
B) gypsum 
C) limestone 
D) opal 
A) chert 
B) gypsum 
C) limestone 
D) opal

Question 6

A cherty limestone would contain which major constituents?

Accepted Answer

A) iron oxide; calcite 
B) silica; iron oxide 
C) clay minerals 
D) silica; calcite 
A) iron oxide; calcite 
B) silica; iron oxide 
C) clay minerals 
D) silica; calcite

Question 7

Detrital sedimentary rocks are classified according to clastic particle size; chemical sedimentary rocks are named according to their mineral composition.

Accepted Answer

A) True 
 B)False

Question 8

Which sediment gets lithified to become shale?

Accepted Answer

A) all clay sized sediment 
B) gravel 
C) clay and fine silt 
D) sand 
A) all clay sized sediment 
B) gravel 
C) clay and fine silt 
D) sand

Question 9

Diagenesis mainly occurs in the uppermost few kilometres of the crust.

Accepted Answer

A) True 
 B)False

Question 10

Where would wedge shaped piles of muddy sediment with interspersed branching sandy channels likely occur?

Accepted Answer

deltas whe

Question 11

What is a wacke?

Accepted Answer

A) a limestone with abundant, sand-sized, quartz grains 
B) a sandstone with immature lithic sand grains embedded in a clay-rich matrix 
C) a dark-grey, calcite-rich mudstone or shale containing pyrite 
D) a dark, organic-rich, chemical sedimentary rock containing small crystals of halite 
A) a limestone with abundant, sand-sized, quartz grains 
B) a sandstone with immature lithic sand grains embedded in a clay-rich matrix 
C) a dark-grey, calcite-rich mudstone or shale containing pyrite 
D) a dark, organic-rich, chemical sedimentary rock containing small crystals of halite

Question 12

Which of the following describes the correct order for relative solubility of minerals in sedimentary rocks?

Accepted Answer

A) Evaporate minerals are more soluble than quartz and less soluble than calcite. 
B) Evaporate minerals are less soluble than quartz and calcite. 
C) Evaporate minerals are more soluble than calcite and quartz. 
D) Evaporate minerals, quartz, and calcite all have the same relative solubility. 
A) Evaporate minerals are more soluble than quartz and less soluble than calcite. 
B) Evaporate minerals are less soluble than quartz and calcite. 
C) Evaporate minerals are more soluble than calcite and quartz. 
D) Evaporate minerals, quartz, and calcite all have the same relative solubility.

Question 13

What minerals would you expect to find in an arkose?

Accepted Answer

feldspar,

Question 14

How are cements formed in sedimentary rocks?

Accepted Answer

A) They are always present in the original sediment, but they take a while to react. 
B) They are injected as a slurry as dense fluids are forced through the sediments. 
C) Most are introduced as dissolved substances in pore waters. 
D) From decomposition of buried organic matter. 
A) They are always present in the original sediment, but they take a while to react. 
B) They are injected as a slurry as dense fluids are forced through the sediments. 
C) Most are introduced as dissolved substances in pore waters. 
D) From decomposition of buried organic matter.

Question 15

Carbonized fossils of Opabina, Ottoia, and Wiwaxia would have to come from the ________.

Accepted Answer

A) Cretaceous continental shales like those at Drumheller, Alberta 
B) Devonian reefs of the Western Canada Basin 
C) Middle Cambrian Burgess Shale of Yoho Park, British Columbia 
D) Precambrian Ediacaran Fauna such as at Mistaken Point, Newfoundland 
A) Cretaceous continental shales like those at Drumheller, Alberta 
B) Devonian reefs of the Western Canada Basin 
C) Middle Cambrian Burgess Shale of Yoho Park, British Columbia 
D) Precambrian Ediacaran Fauna such as at Mistaken Point, Newfoundland

Question 16

Where do most carbonate reefs form?

Accepted Answer

A) in the arctic 
B) from hot springs deposits in the deep sea 
C) in the tropics between -30° and +30° Latitude 
D) where rivers drain tropical rain forest and bury lots of clastic sediment and biomass 
A) in the arctic 
B) from hot springs deposits in the deep sea 
C) in the tropics between -30° and +30° Latitude 
D) where rivers drain tropical rain forest and bury lots of clastic sediment and biomass

Question 17

What is amber?

Accepted Answer

A) petrified wood 
B) the fossilized remnant of evergreen tree resins 
C) lignite coal 
D) insect coprolites 
A) petrified wood 
B) the fossilized remnant of evergreen tree resins 
C) lignite coal 
D) insect coprolites

Question 18

Water is gradually expelled from compacting clay and mud sediments.

Accepted Answer

A) True 
 B)False

Question 19

Oolitic limestone is most likely to form in what type of depositional environment?

Accepted Answer

A) quiet, muddy, lagoons and bays 
B) shallow, clear, marine waters with vigorous current activity 
C) deep, marine waters below most wave action 
D) acidic, organic-rich waters in freshwater swamps and bogs 
A) quiet, muddy, lagoons and bays 
B) shallow, clear, marine waters with vigorous current activity 
C) deep, marine waters below most wave action 
D) acidic, organic-rich waters in freshwater swamps and bogs

Question 20

What proportion of sedimentary rocks do the mudstones and shales comprise?

Accepted Answer

A) 5% 
B) 25% 
C) 50% 
D) 95% 
A) 5% 
B) 25% 
C) 50% 
D) 95%

Calcite is the original mineral precipitated as the hard parts of shells and corals.

A feldspar-rich sandstone is called arkose.

Interbedded cherts with banded iron formations, or with volcanic ash deposits, are taken to mean that the Precambrian oceans had more dissolved silica or more volcanism.

What does a sediment layer bounded by two bedding planes indicate?

What kind of rock are most dripstones and stalactites in caves?

A cherty limestone would contain which major constituents?

Detrital sedimentary rocks are classified according to clastic particle size; chemical sedimentary rocks are named according to their mineral composition.

Which sediment gets lithified to become shale?

Diagenesis mainly occurs in the uppermost few kilometres of the crust.

Where would wedge shaped piles of muddy sediment with interspersed branching sandy channels likely occur?

What is a wacke?

Which of the following describes the correct order for relative solubility of minerals in sedimentary rocks?

What minerals would you expect to find in an arkose?

How are cements formed in sedimentary rocks?

Carbonized fossils of Opabina, Ottoia, and Wiwaxia would have to come from the ________.

Where do most carbonate reefs form?

What is amber?

Water is gradually expelled from compacting clay and mud sediments.

Oolitic limestone is most likely to form in what type of depositional environment?

What proportion of sedimentary rocks do the mudstones and shales comprise?

An Introduction to Geology and Plate Tectonics

Minerals: The Building Blocks of Rocks

Igneous Rocks

Volcanoes and Volcanic Processes

Weathering and Soil

Metamorphism and Metamorphic Rocks

Geologic Time

Crustal Deformation

Earthquakes and Earth's Interior

The Ocean Floor

Plate Tectonics: The Framework for Modern Geology

Mountain Building and Continental Frameworks

Mass Wasting: The Work of Gravity

Running Water

Groundwater

Glaciers and Glaciation

Deserts and Winds

Shorelines

Mineral and Energy Resources

Filters

Exam 6: Sedimentary Rocks

Calcite is the original mineral precipitated as the hard parts of shells and corals.

A feldspar-rich sandstone is called arkose.

Interbedded cherts with banded iron formations, or with volcanic ash deposits, are taken to mean that the Precambrian oceans had more dissolved silica or more volcanism.

What does a sediment layer bounded by two bedding planes indicate?

What kind of rock are most dripstones and stalactites in caves?

A cherty limestone would contain which major constituents?

Detrital sedimentary rocks are classified according to clastic particle size; chemical sedimentary rocks are named according to their mineral composition.

Which sediment gets lithified to become shale?

Diagenesis mainly occurs in the uppermost few kilometres of the crust.

Where would wedge shaped piles of muddy sediment with interspersed branching sandy channels likely occur?

What is a wacke?

Which of the following describes the correct order for relative solubility of minerals in sedimentary rocks?

What minerals would you expect to find in an arkose?

How are cements formed in sedimentary rocks?

Carbonized fossils of Opabina, Ottoia, and Wiwaxia would have to come from the ________.

Where do most carbonate reefs form?

What is amber?

Water is gradually expelled from compacting clay and mud sediments.

Oolitic limestone is most likely to form in what type of depositional environment?

What proportion of sedimentary rocks do the mudstones and shales comprise?

An Introduction to Geology and Plate Tectonics

Minerals: The Building Blocks of Rocks

Igneous Rocks

Volcanoes and Volcanic Processes

Weathering and Soil

Metamorphism and Metamorphic Rocks

Geologic Time

Crustal Deformation

Earthquakes and Earth's Interior

The Ocean Floor

Plate Tectonics: The Framework for Modern Geology

Mountain Building and Continental Frameworks

Mass Wasting: The Work of Gravity

Running Water

Groundwater

Glaciers and Glaciation

Deserts and Winds

Shorelines

Mineral and Energy Resources

Filters