Question 1

Explain what constitutes a rock and how soil is different from a rock.

Accepted Answer

A rock is a consolidated aggregate of rock and organic material that has been lithified or hardened. Soil is a non-consolidated aggregate of material that has not been hardened. Soil turns into rock over time and rock is weathered into soil.

Question 2

The vast amount of sandstone found in Utah tells a geologist that ancient sand dunes once existed in the region.

Accepted Answer

A) True 
 B)False  True

Question 3

Which is not a true statement about metamorphic rocks?

Accepted Answer

A)  Contact metamorphism occurs when hot magma intrudes cooler rock 
B)  If you find a low-grade piece of marble, that means the marble you found was very close to the magma chamber 
C)  Contact metamorphism commonly occurs without deformation 
D)  The highest grade metamorphic rocks form the contact point 
A)  Contact metamorphism occurs when hot magma intrudes cooler rock 
B)  If you find a low-grade piece of marble, that means the marble you found was very close to the magma chamber 
C)  Contact metamorphism commonly occurs without deformation 
D)  The highest grade metamorphic rocks form the contact point B

Question 4

Which of the following properties would be the most effective means of mineral identification for the mineral hematite?

Accepted Answer

A)  If you discover a piece of sandstone that is well sorted by size, that would tell you that the sands were deposited in an environment with high levels of waver energy such as a beach 
B)  Crossbedding is a sedimentary structure that tells a geologist about ancient wind and water conditions from geologic past 
C)  A ripple mark is a sedimentary structure that tells a geologist shallow water currents from geologic past 
D)  A mud crack is a sedimentary structure that tells a geologist that mud dried up after being deposited in water at some point in geologic past 
E)  A graded bed is an uncommon sedimentary structure but it tells a geologist that all sizes of sediment were abruptly deposited at the same time 
A)  If you discover a piece of sandstone that is well sorted by size, that would tell you that the sands were deposited in an environment with high levels of waver energy such as a beach 
B)  Crossbedding is a sedimentary structure that tells a geologist about ancient wind and water conditions from geologic past 
C)  A ripple mark is a sedimentary structure that tells a geologist shallow water currents from geologic past 
D)  A mud crack is a sedimentary structure that tells a geologist that mud dried up after being deposited in water at some point in geologic past 
E)  A graded bed is an uncommon sedimentary structure but it tells a geologist that all sizes of sediment were abruptly deposited at the same time

Question 5

If you find a rock with a dominance in quartz minerals, that should tell you as a geologist that the magma chamber in which the quartz crystallized was around 500°C.

Accepted Answer

A) True 
 B)False

Question 6

What type of metamorphic grade occurs in the depth of less than 10 kilometers and causes the rock to heat up to 300°C to 400°C? _________________

Accepted Answer

The answer of What type of metamorphic grade occurs in...

Question 7

Which of the following is not a true statement?

Accepted Answer

A)  Bedrock is the rock material which exists beneath the soil 
B)  The rock that is already in a region and has been cut into by intrusive igneous rocks is referred to as the country rock 
C)  Basement rock that exists beneath the sedimentary rock layers at the Earth's surface 
D)  All of the above are true statements 
A)  Bedrock is the rock material which exists beneath the soil 
B)  The rock that is already in a region and has been cut into by intrusive igneous rocks is referred to as the country rock 
C)  Basement rock that exists beneath the sedimentary rock layers at the Earth's surface 
D)  All of the above are true statements

Question 8

Which is not a true statement?

Accepted Answer

A)  Regional dynamothermal metamorphism would occur where active mountain building is happening 
B)  Regional dynamothermal metamorphism refers to rocks that are deformed and heated simultaneously 
C)  Regional dynamothermal metamorphism is the least common type of metamorphism because it involves large-scale regional areas where mountain building has occurred 
D)  If you find a regional dynamothermal metamorphic rock such as gneiss, the sample will likely be foliated 
A)  Regional dynamothermal metamorphism would occur where active mountain building is happening 
B)  Regional dynamothermal metamorphism refers to rocks that are deformed and heated simultaneously 
C)  Regional dynamothermal metamorphism is the least common type of metamorphism because it involves large-scale regional areas where mountain building has occurred 
D)  If you find a regional dynamothermal metamorphic rock such as gneiss, the sample will likely be foliated

Question 9

Which of the following is not a true statement about the rock cycle?

Accepted Answer

A)  A sedimentary rock can be buried to depths that cause it to metamorphose 
B)  A metamorphic rock can be buried to depths inside the Earth that the rock is melted into an igneous rock 
C)  An igneous rock can form inside the Earth as it crystallizes and cools off or it can be deposited on the Earth's crust as lava where it crystallizes and cools off 
D)  All of the above are true statements about elements 
A)  A sedimentary rock can be buried to depths that cause it to metamorphose 
B)  A metamorphic rock can be buried to depths inside the Earth that the rock is melted into an igneous rock 
C)  An igneous rock can form inside the Earth as it crystallizes and cools off or it can be deposited on the Earth's crust as lava where it crystallizes and cools off 
D)  All of the above are true statements about elements

Question 10

What type of metamorphic grade occurs between 40 and 55 kilometers before the Earth's surface allowing a rock to come close to its melting point? _________________

Accepted Answer

The answer of What type of metamorphic grade occurs between...

Question 11

Short Answer 
 Explain the steps for forming a sedimentary rock.

Accepted Answer

Weathering, erosion,

Question 12

Short Answer 
 Explain how chalk limestone forms.

Accepted Answer

Chalk limestone is made up of

Question 13

If you find a piece of granite or rhyolite, it will primarily contain quartz but may contain small amounts of biotite or hornblende which gives it a speckled appearance.

Accepted Answer

A) True 
 B)False

Question 14

If you find a piece of granite, you have discovered a rock that is high in iron and magnesium.

Accepted Answer

A) True 
 B)False

Question 15

If you find a rock in a creek bed, which of the following is true about that rock?

Accepted Answer

A)  The rock you found has likely been recycled via weathering and erosion at the Earth's surface 
B)  The rock you found has been the same rock and has not experienced any changes for all of geologic time 
C)  Weathering breaks down rocks into smaller fragments 
D)  Sands on a beach represent weathered down sediments but are not considered rocks 
A)  The rock you found has likely been recycled via weathering and erosion at the Earth's surface 
B)  The rock you found has been the same rock and has not experienced any changes for all of geologic time 
C)  Weathering breaks down rocks into smaller fragments 
D)  Sands on a beach represent weathered down sediments but are not considered rocks

Question 16

Since marine fossils have been documented at the top of Mount Everest, that tells a geologist that marine or oceanic rocks layers with these fossils have been uplifted to the highest point in the Himalayas.

Accepted Answer

A) True 
 B)False

Question 17

Explain how excessive mining of gravels could pose a risk to future construction needs of humans.

Accepted Answer

Excessive mining consumes non-sustainabl

Question 18

If you find a rock with a dominance in olivine minerals, that should tell you as a geologist that the magma chamber in which the quartz crystallized was greater than 1100°C.

Accepted Answer

A) True 
 B)False

Question 19

Completion 
 If you see a sand and gravel operation near where you live, you have observed one of ________ active operations based on business data collected in 2016.

Accepted Answer

The answer of Completion 
 If you see a sand...

Question 20

Completion 
 Which sedimentary structure is the most common and represents layers of sediment that have deposited in a similar depositional environment? ____________________.

Accepted Answer

The answer of Completion 
 Which sedimentary structure is the...

Exam 3: Rocks

Explain what constitutes a rock and how soil is different from a rock.

The vast amount of sandstone found in Utah tells a geologist that ancient sand dunes once existed in the region.

Which is not a true statement about metamorphic rocks?

Which of the following properties would be the most effective means of mineral identification for the mineral hematite?

If you find a rock with a dominance in quartz minerals, that should tell you as a geologist that the magma chamber in which the quartz crystallized was around 500°C.

What type of metamorphic grade occurs in the depth of less than 10 kilometers and causes the rock to heat up to 300°C to 400°C? _________________

Which of the following is not a true statement?

Which is not a true statement?

Which of the following is not a true statement about the rock cycle?

What type of metamorphic grade occurs between 40 and 55 kilometers before the Earth's surface allowing a rock to come close to its melting point? _________________

Short Answer Explain the steps for forming a sedimentary rock.

Short Answer Explain how chalk limestone forms.

If you find a piece of granite or rhyolite, it will primarily contain quartz but may contain small amounts of biotite or hornblende which gives it a speckled appearance.

If you find a piece of granite, you have discovered a rock that is high in iron and magnesium.

If you find a rock in a creek bed, which of the following is true about that rock?

Since marine fossils have been documented at the top of Mount Everest, that tells a geologist that marine or oceanic rocks layers with these fossils have been uplifted to the highest point in the Himalayas.

Explain how excessive mining of gravels could pose a risk to future construction needs of humans.

If you find a rock with a dominance in olivine minerals, that should tell you as a geologist that the magma chamber in which the quartz crystallized was greater than 1100°C.

Completion If you see a sand and gravel operation near where you live, you have observed one of ________ active operations based on business data collected in 2016.

Completion Which sedimentary structure is the most common and represents layers of sediment that have deposited in a similar depositional environment? ____________________.

Earth Systems

Minerals

Geologic Time: a Story in the Rocks

Geologic Resources

The Active Earth: Plate Tectonics

Earthquakes and the Earths Structure

Volcanoes and Plutons

Mountains

Weathering, Soil, and Erosion

Fresh Water: Streams, Lakes, Ground Water, and Wetlands

Water Resources

Glaciers and Ice Ages

Deserts and Wind

Ocean Basins

Oceans and Coastlines

The Atmosphere

Energy Balance in the Atmosphere

Moisture, Clouds, and Weather

Climate

Climate Change

Motions in the Heavens

Planets and Their Moons

Stars, Space, and Galaxies

Filters