Earth History - Absolute and Relative Dating

Last updated over 3 years ago

25 questions

1

4

1

6

1

3

1

Library

Earth History - Absolute and Relative Dating

Last updated over 3 years ago

25 questions

1

3

How many eras are there in the Phanerozoic Eon? Name them.

1

4

1

6

1

3

A fossil was discovered that originally contained 500 grams of Carbon-14 now contains only 15.625 grams of Carbon-14. Approximately how many half lives has this sample experienced and how many years ago was this sample part of a living tree? What geological time period was this fossil from?
1 half-life for Carbon-14 = 5,730 years

3

A sample of igneous rock has only 100 grams remaining out of an initial 400 grams of Potassium-40. How many half-lives has this rock undergone and how old is it? What geologic time period was it formed?
1 half life for potassium-40 = 1.25 billion years

1

2

How do you know that it is missing? What happened to the missing layer?

Use full complete sentences for credit.

1

3

Which is older, D or F? What evidence (geologic sequencing law) supports your claim?

Use complete sentences for full credit.

1

If you wanted to know the exact date of rock H, what could you use?

1

3

Scientists are able to conclude that a forested ecosystem existed in Antarctica millions of years ago by studying

the fossil record

seafloor spreading

the current climate

glacial movement

A fault is found that cuts through lower rock layers but not those above it. What can most likely be concluded?

The fault is is older than the layers it cuts through, and older than the layers above it.

The fault is younger than the layers it cuts through, and younger than the layers above it.

The fault is younger than the layers it cuts through, but older than the layers above it.

The fault is older than the layers it cuts through, but younger than the layers above it.

Which is used in radioactive dating?

hydrochloric acid

index fossil

law of superposition

carbon-14

The law of superposition states

The age of the layers can not be determined without an idex fossil.

The youngest layer is on top and the oldest layer is on the bottom.

The layers can only be dated for 50,000 years.

The oldest layer is the last one that was deposited.

What order of events created this area? Youngest (top) to oldest (bottom)

M
O
B
A
J
D
X

Which principle of stratigraphy tells you that M is older than J? Use the above picture.

Cross-cutting

Superposition

Original horizontality

Inclusion

What order of events created this area? Youngest (top) to oldest (bottom)

F
M
P
J
B
K
S
R
X
A

Which principle of stratigraphy tells you P is older than B? Use the above picture.

Original horizontality

Superposition

Inclusion

Cross-cutting

A fossil was discovered that originally contained 500 grams of Carbon-14 now contains only 15.625 grams of Carbon-14. Approximately how many half lives has this sample experienced and how many years ago was this sample part of a living tree? What geological time period was this fossil from?
1 half-life for Carbon-14 = 5,730 years

A sample of igneous rock has only 100 grams remaining out of an initial 400 grams of Potassium-40. How many half-lives has this rock undergone and how old is it? What geologic time period was it formed?
1 half life for potassium-40 = 1.25 billion years

What is the only type of rock that can contain fossils?

Igneous

Sedimentary

Metamorphic

1

If you wanted to know the exact date of rock H, what could you use?

1

3

Why are the batholyth Q and volcano P considered different rocks? Explain your answer is full complete sentences with as much detail as possible.

(Hint: use what you learned about volcanoes and plate tectonics.)

What period was 34 million years ago?

Paleocene

Jurassic

Tertiary

Cenozoic

How many years ago did the Paleozoic end?

318 Ma

251 Ma

65 Ma

416 Ma

Scientists are able to conclude that a forested ecosystem existed in Antarctica millions of years ago by studying

the fossil record

seafloor spreading

the current climate

glacial movement

A fault is found that cuts through lower rock layers but not those above it. What can most likely be concluded?

The fault is is older than the layers it cuts through, and older than the layers above it.

The fault is younger than the layers it cuts through, and younger than the layers above it.

The fault is younger than the layers it cuts through, but older than the layers above it.

The fault is older than the layers it cuts through, but younger than the layers above it.

Which is used in radioactive dating?

hydrochloric acid

index fossil

law of superposition

carbon-14

The law of superposition states

The age of the layers can not be determined without an idex fossil.

The youngest layer is on top and the oldest layer is on the bottom.

The layers can only be dated for 50,000 years.

The oldest layer is the last one that was deposited.

What order of events created this area?  Youngest (top) to oldest (bottom)

M

O

B

A

J

D

X

Which principle of stratigraphy tells you that M is older than J? Use the above picture.

Cross-cutting

Superposition

Original horizontality

Inclusion

What order of events created this area?  Youngest (top) to oldest (bottom)

F

M

P

J

B

K

S

R

X

A

Which principle of stratigraphy tells you P is older than B? Use the above picture.

Original horizontality

Superposition

Inclusion

Cross-cutting

What is the only type of rock that can contain fossils? 

Igneous

Sedimentary

Metamorphic

What section is missing from column I at the unconformity? Compare column I and II to identify the layers in order.

Which fossil could be classified as an index fossil?

A

B

C

D

Which principle of stratigraphy is being shown in the picture?

Radiometric dating

Lateral continuity

Inclusion

Cross-cutting

Which rock section is the youngest?

Which principle of stratigraphy tells you that G is folded?

lateral continuity

original horizontality

cross-cutting

superposition

Which principle of stratigraphy would you use to figure out how old (relatively) fault L is?

Which event is younger, fault L or volcano P?

not enough info

same age

volcano P

fault L

Why are the batholyth Q and volcano P considered different rocks? Explain your answer is full complete sentences with as much detail as possible.

(Hint: use what you learned about volcanoes and plate tectonics.)

What period was 34 million years ago?

Paleocene

Jurassic

Tertiary

Cenozoic

How many years ago did the Paleozoic end?

318 Ma

251 Ma

65 Ma

416 Ma

What section is missing from column I at the unconformity?  Compare column I and II to identify the layers in order.

A

B

C

D

E

F

Which fossil could be classified as an index fossil?

A

B

C

D

Which principle of stratigraphy is being shown in the picture?

Radiometric dating

Lateral continuity

Inclusion

Cross-cutting

Which rock section is the youngest?

A

B

C

D

E

F

G

H

I

Which principle of stratigraphy tells you that G is folded?

lateral continuity

original horizontality

cross-cutting

superposition

Which principle of stratigraphy would you use to figure out how old (relatively) fault L is?

Inclusion

Original horizontality

Cross-cutting

Superposition

Lateral continuity

Which event is younger, fault L or volcano P?

not enough info

same age

volcano P

fault L

Earth History - Absolute and Relative Dating

Earth History - Absolute and Relative Dating

How many eras are there in the Phanerozoic Eon? Name them.

A sample of igneous rock has only 100 grams remaining out of an initial 400 grams of Potassium-40. How many half-lives has this rock undergone and how old is it? What geologic time period was it formed?1 half life for potassium-40 = 1.25 billion years

How do you know that it is missing? What happened to the missing layer?Use full complete sentences for credit.

Which is older, D or F? What evidence (geologic sequencing law) supports your claim?Use complete sentences for full credit.

If you wanted to know the exact date of rock H, what could you use?

How many eras are there in the Phanerozoic Eon? Name them.

Scientists are able to conclude that a forested ecosystem existed in Antarctica millions of years ago by studying

A fault is found that cuts through lower rock layers but not those above it. What can most likely be concluded?

Which is used in radioactive dating?

The law of superposition states

What order of events created this area? Youngest (top) to oldest (bottom)

Which principle of stratigraphy tells you that M is older than J? Use the above picture.

What order of events created this area? Youngest (top) to oldest (bottom)

Which principle of stratigraphy tells you P is older than B? Use the above picture.

A sample of igneous rock has only 100 grams remaining out of an initial 400 grams of Potassium-40. How many half-lives has this rock undergone and how old is it? What geologic time period was it formed?1 half life for potassium-40 = 1.25 billion years

What is the only type of rock that can contain fossils?

How do you know that it is missing? What happened to the missing layer?Use full complete sentences for credit.

Which is older, D or F? What evidence (geologic sequencing law) supports your claim?Use complete sentences for full credit.

If you wanted to know the exact date of rock H, what could you use?

Why are the batholyth Q and volcano P considered different rocks? Explain your answer is full complete sentences with as much detail as possible.(Hint: use what you learned about volcanoes and plate tectonics.)

What period was 34 million years ago?

How many years ago did the Paleozoic end?

What section is missing from column I at the unconformity? Compare column I and II to identify the layers in order.

Which fossil could be classified as an index fossil?

Which principle of stratigraphy is being shown in the picture?

Which rock section is the youngest?

Which principle of stratigraphy tells you that G is folded?

Which principle of stratigraphy would you use to figure out how old (relatively) fault L is?

Which event is younger, fault L or volcano P?

Why are the batholyth Q and volcano P considered different rocks? Explain your answer is full complete sentences with as much detail as possible.(Hint: use what you learned about volcanoes and plate tectonics.)

A sample of igneous rock has only 100 grams remaining out of an initial 400 grams of Potassium-40. How many half-lives has this rock undergone and how old is it? What geologic time period was it formed?
1 half life for potassium-40 = 1.25 billion years

How do you know that it is missing? What happened to the missing layer?

Use full complete sentences for credit.

Which is older, D or F? What evidence (geologic sequencing law) supports your claim?

Use complete sentences for full credit.

A sample of igneous rock has only 100 grams remaining out of an initial 400 grams of Potassium-40. How many half-lives has this rock undergone and how old is it? What geologic time period was it formed?
1 half life for potassium-40 = 1.25 billion years

How do you know that it is missing? What happened to the missing layer?

Use full complete sentences for credit.

Which is older, D or F? What evidence (geologic sequencing law) supports your claim?

Use complete sentences for full credit.

Why are the batholyth Q and volcano P considered different rocks? Explain your answer is full complete sentences with as much detail as possible.

(Hint: use what you learned about volcanoes and plate tectonics.)

Why are the batholyth Q and volcano P considered different rocks? Explain your answer is full complete sentences with as much detail as possible.

(Hint: use what you learned about volcanoes and plate tectonics.)