Question 1

Different varieties of an atom that have a different number of neutrons in their nuclei are ____________________.

Accepted Answer

The answer of Different varieties of an atom that have...

Question 2

Sources of uncertainty in radioactive dating do not include:

Accepted Answer

A)  loss of daughter isotope. 
B)  uncertainty in decay constants. 
C)  experimental and sample error. 
D)  addition of parent isotope. 
E)  questions about metamorphism. 
A)  loss of daughter isotope. 
B)  uncertainty in decay constants. 
C)  experimental and sample error. 
D)  addition of parent isotope. 
E)  questions about metamorphism.

Question 3

Uranium 235 decays to lead 207 by 7 alpha and 6 beta steps.

Accepted Answer

A) True 
 B)False

Question 4

Why is correlation needed to construct a complete geologic history of a region? How does correlation work, e.g., in the Colorado Plateau?

Accepted Answer

No single location in a region has a geo

Question 5

James Hutton concluded that Earth must be very old and wrote that "we find no vestige of a beginning, and no prospect of an end."

Accepted Answer

A) True 
 B)False

Question 6

Carbon 14 is best for dating fine-grained volcanic rocks.

Accepted Answer

A) True 
 B)False

Question 7

What is the principle of fossil succession, and what is its importance? Who is credited with discovering it?

Accepted Answer

The principle of fossil succession state

Question 8

To determine the radiometric age of a rock, scientists must be able to measure very accurately the:

Accepted Answer

A)  unstable parent element. 
B)  unstable daughter element. 
C)  stable parent element. 
D)  stable daughter element. 
E)  unstable parent element and stable daughter element 
A)  unstable parent element. 
B)  unstable daughter element. 
C)  stable parent element. 
D)  stable daughter element. 
E)  unstable parent element and stable daughter element

Question 9

How do stalagmites enter into the debate on global warming?

Accepted Answer

Stalagmites are composed of calcium carb

Question 10

The best dating method for a frozen mammoth carcass is rubidium 87-strontium 87.

Accepted Answer

A) True 
 B)False

Question 11

The time necessary for half of the atoms of the unstable parent element to decay to the new, more stable daughter element is the isotope's ____________________.

Accepted Answer

The answer of The time necessary for half of the...

Question 12

How are radioactive elements different from stable elements?

Accepted Answer

Radioactive elements spontaneo

Question 13

The time equivalence of strata is determined by:

Accepted Answer

A)  correlation of unusual lithologies. 
B)  correlation of key beds. 
C)  correlation of fossils. 
D)  lateral tracing. 
E)  superposition. 
A)  correlation of unusual lithologies. 
B)  correlation of key beds. 
C)  correlation of fossils. 
D)  lateral tracing. 
E)  superposition.

Question 14

A body of rock that is intruded by another rock must be ____________________ in age than the intrusion.

Accepted Answer

The answer of A body of rock that is intruded...

Question 15

What is the geologic time scale today based on compared to the past?

Accepted Answer

The original geologic time sca

Question 16

Explain why correlation by fossils is necessary to demonstrate time equivalence of strata.

Accepted Answer

Each life form is in

Question 17

What is the importance of a marker bed?

Accepted Answer

Marker beds are important beca

Question 18

Which of the following was not among the early scientific attempts to determine Earth's age?

Accepted Answer

A)  the cooling rate of a molten iron sphere of Earth's diameter 
B)  the rate of sediment deposition 
C)  the rate at which water precipitation accumulated in the ocean 
D)  the geologic principles and the inferred rates of change necessary to explain the fossil record 
E)  the rate of salt accumulation in the ocean 
A)  the cooling rate of a molten iron sphere of Earth's diameter 
B)  the rate of sediment deposition 
C)  the rate at which water precipitation accumulated in the ocean 
D)  the geologic principles and the inferred rates of change necessary to explain the fossil record 
E)  the rate of salt accumulation in the ocean

Question 19

In order to correlate age-equivalent rock units of dissimilar composition or to correlate rock units over a large area, ____________________ and the principle of ____________________ are used.

Accepted Answer

fossils, f

Question 20

How does the sequence of events differ between an angular unconformity and a disconformity?

Accepted Answer

An angular unconformity involv

Different varieties of an atom that have a different number of neutrons in their nuclei are ____________________.

Sources of uncertainty in radioactive dating do not include:

Uranium 235 decays to lead 207 by 7 alpha and 6 beta steps.

Why is correlation needed to construct a complete geologic history of a region? How does correlation work, e.g., in the Colorado Plateau?

James Hutton concluded that Earth must be very old and wrote that "we find no vestige of a beginning, and no prospect of an end."

Carbon 14 is best for dating fine-grained volcanic rocks.

What is the principle of fossil succession, and what is its importance? Who is credited with discovering it?

To determine the radiometric age of a rock, scientists must be able to measure very accurately the:

How do stalagmites enter into the debate on global warming?

The best dating method for a frozen mammoth carcass is rubidium 87-strontium 87.

The time necessary for half of the atoms of the unstable parent element to decay to the new, more stable daughter element is the isotope's ____________________.

How are radioactive elements different from stable elements?

The time equivalence of strata is determined by:

A body of rock that is intruded by another rock must be ____________________ in age than the intrusion.

What is the geologic time scale today based on compared to the past?

Explain why correlation by fossils is necessary to demonstrate time equivalence of strata.

What is the importance of a marker bed?

Which of the following was not among the early scientific attempts to determine Earth's age?

In order to correlate age-equivalent rock units of dissimilar composition or to correlate rock units over a large area, and the principle of are used.

How does the sequence of events differ between an angular unconformity and a disconformity?

Understanding Earth: a Dynamic and Evolving Planet

Plate Tectonics: a Unifying Theory

Minerals: the Building Blocks of Rocks

Igneous Rocks and Intrusive Igneous Activity

Volcanoes and Volcanism

Weathering, Soil, and Sedimentary Rocks

Metamorphism and Metamorphic Rocks

Earthquakes and Earths Interior

Deformation, Mountain Building, and the Continents

Mass Wasting

Running Water

Groundwater

Glaciers and Glaciation

The Work of Wind and Deserts

Shorelines and Shoreline Processes

Earth History

Life History

Filters

Exam 16: Geologic Time: Concepts and Principles

Different varieties of an atom that have a different number of neutrons in their nuclei are ____________________.

Sources of uncertainty in radioactive dating do not include:

Uranium 235 decays to lead 207 by 7 alpha and 6 beta steps.

Why is correlation needed to construct a complete geologic history of a region? How does correlation work, e.g., in the Colorado Plateau?

James Hutton concluded that Earth must be very old and wrote that "we find no vestige of a beginning, and no prospect of an end."

Carbon 14 is best for dating fine-grained volcanic rocks.

What is the principle of fossil succession, and what is its importance? Who is credited with discovering it?

To determine the radiometric age of a rock, scientists must be able to measure very accurately the:

How do stalagmites enter into the debate on global warming?

The best dating method for a frozen mammoth carcass is rubidium 87-strontium 87.

The time necessary for half of the atoms of the unstable parent element to decay to the new, more stable daughter element is the isotope's ____________________.

How are radioactive elements different from stable elements?

The time equivalence of strata is determined by:

A body of rock that is intruded by another rock must be ____________________ in age than the intrusion.

What is the geologic time scale today based on compared to the past?

Explain why correlation by fossils is necessary to demonstrate time equivalence of strata.

What is the importance of a marker bed?

Which of the following was not among the early scientific attempts to determine Earth's age?

In order to correlate age-equivalent rock units of dissimilar composition or to correlate rock units over a large area, ____________________ and the principle of ____________________ are used.

How does the sequence of events differ between an angular unconformity and a disconformity?

Understanding Earth: a Dynamic and Evolving Planet

Plate Tectonics: a Unifying Theory

Minerals: the Building Blocks of Rocks

Igneous Rocks and Intrusive Igneous Activity

Volcanoes and Volcanism

Weathering, Soil, and Sedimentary Rocks

Metamorphism and Metamorphic Rocks

Earthquakes and Earths Interior

Deformation, Mountain Building, and the Continents

Mass Wasting

Running Water

Groundwater

Glaciers and Glaciation

The Work of Wind and Deserts

Shorelines and Shoreline Processes

Earth History

Life History

Filters

In order to correlate age-equivalent rock units of dissimilar composition or to correlate rock units over a large area, and the principle of are used.