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Earth History - Absolute and Relative Dating

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Last updated about 3 years ago
25 questions
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Question 1
1.

1
3
Question 4
4.

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

Question 5
5.

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

Question 6
6.

Which is used in radioactive dating?

Question 7
7.

The law of superposition states

Question 8
8.

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

  1. O
  2. D
  3. J
  4. A
  5. B
  6. X
  7. M
Question 9
9.

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

Question 10
10.

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

  1. K
  2. M
  3. J
  4. R
Question 11
11.

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

Question 12
12.

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

Question 13
13.

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

Question 14
14.

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

1
2
Question 16
16.

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

Use full complete sentences for credit.

1
Question 17
17.

Which fossil could be classified as an index fossil?

1
1
3
Question 20
20.

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

Use complete sentences for full credit.

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1
1
Question 23
23.

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

1
3
Question 25
25.

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
Question 2
2.

How many years ago did the Paleozoic end?

Question 3
3.

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

A
B
S
X
P
F
Question 15
15.

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
Question 18
18.

Which principle of stratigraphy is being shown in the picture?

Question 19
19.

Question 21
21.

Which principle of stratigraphy tells you that G is folded?

Question 22
22.

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

Question 24
24.

Which event is younger, fault L or volcano P?

A
B
C
D
E
F
Which rock section is the youngest?
A
B
C
D
E
F
G
H
I
Superposition
Lateral continuity