Question 1

What are carbonaceous chondrites?

Accepted Answer

Meteorites that are believed to contain

Question 2

For the block diagram below,what stratigraphic principle allowed you to determine the relative age of the intrusion and the stratigraphic sequence labeled 1?

Accepted Answer

A) principle of superposition 
B) principle of faunal succession 
C) principle of original horizontality 
D) principle of cross-cutting relationships 
A) principle of superposition 
B) principle of faunal succession 
C) principle of original horizontality 
D) principle of cross-cutting relationships

Question 3

In the block diagram below,the contacts between layers in the tilted stratigraphic sequence labeled 1,are examples of

Accepted Answer

A) disconformities. 
B) nonconformities. 
C) angular unconformities. 
D) conformable depositional contacts. 
A) disconformities. 
B) nonconformities. 
C) angular unconformities. 
D) conformable depositional contacts.

Question 4

For the block diagram below,what type of unconformity is labeled as 1?

Accepted Answer

A) disconformity 
B) nonconformity 
C) angular unconformity 
D) None of the above,the contact is conformable. 
A) disconformity 
B) nonconformity 
C) angular unconformity 
D) None of the above,the contact is conformable.

Question 5

Our best estimate for the age of the Earth is _____.

Accepted Answer

A) 4)4 billion years 
B) 4)56 billion years 
C) 4)4 million years 
D) 4)56 million years 
A) 4)4 billion years 
B) 4)56 billion years 
C) 4)4 million years 
D) 4)56 million years

Question 6

Explain the methods used by geologists to approximate the numerical ages of the stratigraphic time scale.How are these ages being continually refined?

Accepted Answer

By integrating relative dating technique

Question 7

Lord Kelvin based his estimate of Earth's age on how long it must have taken Earth to cool by conduction.

Accepted Answer

A) True 
 B)False

Question 8

Generally describe the methods by which numerical dates can be determined for igneous rocks.What assumptions are used in these dating methods?

Accepted Answer

Radiometric dating methods for igneous r

Question 9

Scientists claim that Earth is 4.56 billion years old.Why hasn't a rock been found that is this old?

Accepted Answer

The continual recycling of Earth's surfa

Question 10

A(n)______is a gap in the rock record across which there is a significant amount of missing time.

Accepted Answer

The answer of A(n)______is a gap in the rock record...

Question 11

------------------- is the process in which an element spontaneously transforms into another isotope of the same element,or into a different element.

Accepted Answer

Radioactiv

Question 12

Would the principles of stratigraphy used to determine relative ages on Earth be useful tools for determining relative ages on the Moon or Mars? Explain your answer.

Accepted Answer

The principles of stratigraphy would sti

Question 13

Of the many radiometric dates obtained from Precambrian rocks,the oldest is about _____ billion years.

Accepted Answer

The answer of Of the many radiometric dates obtained from...

Question 14

A magnetic reversal is a period of time in which Earth's magnetic polarity reverses itself.

Accepted Answer

A) True 
 B)False

Question 15

For the figure below give two possible explanations for the stratigraphy at site 3,in which unit E sits directly on top of C.

Accepted Answer

Stratum D is missing at site 3

Question 16

A period of time in which Earth's magnetic polarity reverses itself is termed a__________________ .

Accepted Answer

The answer of A period of time in which Earth's...

Question 17

What are magnetic reversals,and how often do they occur?

Accepted Answer

Magnetic reversals represent a period of

Question 18

Discuss the importance of the Ediacaran Period.

Accepted Answer

The Ediacaran Period is the last period

Question 19

Numerical age is the age of a rock or geological feature in years.

Accepted Answer

A) True 
 B)False

Question 20

Name the eras of Phanerozoic time,starting from oldest to youngest.

Accepted Answer

The eras comprising the Phaner

What are carbonaceous chondrites?

For the block diagram below,what stratigraphic principle allowed you to determine the relative age of the intrusion and the stratigraphic sequence labeled 1?

In the block diagram below,the contacts between layers in the tilted stratigraphic sequence labeled 1,are examples of

For the block diagram below,what type of unconformity is labeled as 1?

Our best estimate for the age of the Earth is _____.

Explain the methods used by geologists to approximate the numerical ages of the stratigraphic time scale.How are these ages being continually refined?

Lord Kelvin based his estimate of Earth's age on how long it must have taken Earth to cool by conduction.

Generally describe the methods by which numerical dates can be determined for igneous rocks.What assumptions are used in these dating methods?

Scientists claim that Earth is 4.56 billion years old.Why hasn't a rock been found that is this old?

A(n)______is a gap in the rock record across which there is a significant amount of missing time.

------------------- is the process in which an element spontaneously transforms into another isotope of the same element,or into a different element.

Would the principles of stratigraphy used to determine relative ages on Earth be useful tools for determining relative ages on the Moon or Mars? Explain your answer.

Of the many radiometric dates obtained from Precambrian rocks,the oldest is about _____ billion years.

A magnetic reversal is a period of time in which Earth's magnetic polarity reverses itself.

For the figure below give two possible explanations for the stratigraphy at site 3,in which unit E sits directly on top of C.

A period of time in which Earth's magnetic polarity reverses itself is termed a__________________ .

What are magnetic reversals,and how often do they occur?

Discuss the importance of the Ediacaran Period.

Numerical age is the age of a rock or geological feature in years.

Name the eras of Phanerozoic time,starting from oldest to youngest.

Earth As a Planet

Earth Materials

Plate Tectonics

Earthquakes and Earths Interior

Volcanoes and Igneous Rocks

Weathering and Erosion

From Sediment to Sedimentary Rock

Folds, faults, and Geological Maps

Metamorphism: New Rock From Old

Water on and Under the Ground

The Ocean and the Atmosphere

Climatic Extremes: Deserts and Glaciers

Earths Climates: Past, present, future

A Brief History of Life on Earth

Understanding Earths Resources

Filters

Exam 3: How Old Is Old the Rock Record and Geologic Time

What are carbonaceous chondrites?

For the block diagram below,what stratigraphic principle allowed you to determine the relative age of the intrusion and the stratigraphic sequence labeled 1?

In the block diagram below,the contacts between layers in the tilted stratigraphic sequence labeled 1,are examples of

For the block diagram below,what type of unconformity is labeled as 1?

Our best estimate for the age of the Earth is _____.

Explain the methods used by geologists to approximate the numerical ages of the stratigraphic time scale.How are these ages being continually refined?

Lord Kelvin based his estimate of Earth's age on how long it must have taken Earth to cool by conduction.

Generally describe the methods by which numerical dates can be determined for igneous rocks.What assumptions are used in these dating methods?

Scientists claim that Earth is 4.56 billion years old.Why hasn't a rock been found that is this old?

A(n)______is a gap in the rock record across which there is a significant amount of missing time.

------------------- is the process in which an element spontaneously transforms into another isotope of the same element,or into a different element.

Would the principles of stratigraphy used to determine relative ages on Earth be useful tools for determining relative ages on the Moon or Mars? Explain your answer.

Of the many radiometric dates obtained from Precambrian rocks,the oldest is about _____ billion years.

A magnetic reversal is a period of time in which Earth's magnetic polarity reverses itself.

For the figure below give two possible explanations for the stratigraphy at site 3,in which unit E sits directly on top of C.

A period of time in which Earth's magnetic polarity reverses itself is termed a__________________ .

What are magnetic reversals,and how often do they occur?

Discuss the importance of the Ediacaran Period.

Numerical age is the age of a rock or geological feature in years.

Name the eras of Phanerozoic time,starting from oldest to youngest.

Earth As a Planet

Earth Materials

Plate Tectonics

Earthquakes and Earths Interior

Volcanoes and Igneous Rocks

Weathering and Erosion

From Sediment to Sedimentary Rock

Folds, faults, and Geological Maps

Metamorphism: New Rock From Old

Water on and Under the Ground

The Ocean and the Atmosphere

Climatic Extremes: Deserts and Glaciers

Earths Climates: Past, present, future

A Brief History of Life on Earth

Understanding Earths Resources

Filters