1. Relative Age Quiz

2. 1. Igneous intrusion D is younger than layers B, C, and E according to
Law of superposition
Law of cross-cutting relationships
Original horizontality
Uniformitarianism

3. 2. Which of these is in the correct order from oldest to most recent?
B, C, A, D, E
D, C, B, A, E
C, B, A, D, E
E, D, C, B, A

4. 3. Which of the following statements about the shale (rock 2) is incorrect?
It is older than the conglomerate
It is younger than the basalt dike
It is younger than the limestone
Its upper surface was weathered and eroded

5. 4. Rock 3 would be most likely which of the following?
Sandstone
Shale
Limestone
Granite

6. 5. According to the diagram, the age of rock layers in two different locations can be matched by
Being found at the same elevation
Being the same type of rock
Having the same rock types either above or below
Containing the same index fossils

7. 6. What type of unconformity is erosional surface E?
Angular unconformity
Nonconformity
Disconformity
“I don’t wanna”-conformity

8. 7. Sedimentary rock F is the youngest according to
Law of superposition
Law of cross-cutting relationships
Original horizontality
Uniformitarianism

9. 8. What type of rock might have formed along the edges of igneous intrusions R and M?
Sedimentary
Metamorphic
Not enough info

10. 9. Which of the following statements about fault D are accurate?
It is younger than layer C
It is younger than intrusion I
It happened before layer H
It happened after layer B

11. 10. This picture is most clearly depicting
Law of superposition
Law of cross-cutting relationships
Original horizontality
Uniformitarianism

12. Bonus (to forgive you for one missed question)
States that the forces that are changing Earth’s surface today are the same forces that changed Earth’s surface in the past.
Law of superposition
Law of cross-cutting relationships
Original horizontality
Uniformitarianism