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Quiz Friday2/17 Relative Ages of Rocks
By Bonnie Coldiron
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Last updated about 3 years ago
13 questions
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Instructions
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2
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3
Yes you can use your notes
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2
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Question 4
4.
Which statement best explains
why rock layer 3 is missing
from outcrop B?
Heat and pressure in outcrop A created rock layer 3.
Question 5
5.
What 2 features make up a good Index Fossil
The species existed for multiple geologic periods of time
When alive the creature lived in many places
When alive the creature only lived in one place
The species only existed for a relatively brief period of time
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Question 6
6.
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Question 8
8.
Which layer of rock is
youngest
?
A
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Question 9
9.
Which rock layer in Outcrop 2 is same Layer X in Outcrop 1
A
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Question 10
10.
What is a key bed?
break in the rock record caused by weathering and erosion
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Question 12
12.
On the image tell me which rock layers are oldest to youngest:
Oldest = 1
Youngest = 6
Click on "show your work"
visibility
View drawing
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4
Question 13
13.
What caused the layers to become tilted?
Question 1
1.
Which layer of rock is youngest?
A
B
C
D
Question 2
2.
Which layer of rock is oldest?
A
B
C
D
Question 3
3.
Letter D represents missing material. What could have caused the material to be missing?
need 2 correct answers
erosion
A volcanic eruption destroyed rock layer 3 in outcrop B.
A fault exists between outcrops A and B.
Erosion created an unconformity between rock layers 2 and 4 in outcrop B.
Which layer of rock is oldest?
D
Question 7
7.
Which layer of rock is
youngest
?
B
C
D
B
C
D
layer of rock that can be used to age the rocks above and below it
fossil used to identify or date a rock layer
Question 11
11.
Why does volcanic ash make a good key bed?
cementation
weathering
compaction
deposition
D
