Relative Dating

Which of the following event is the OLDEST?

• D
• E
• B

Which of the following events is the YOUNGEST?

• E
• A
• D

Which of the following statements provides a relative age of a rock?

• D is 400 million years old
• C is older than B
• D crosses layers C, B, A

The letter E represents a _________.

• fold
• tilt
• fault

The letter D represents a/an _________.

• tilt
• intrusion
• fault

Which of the following statements provides the ABSOLUTE AGE of a rock?

• C is older than B
• A is 20 million years old
• D is younger than A

Which of the following events happened FIRST?

• M
• R
• X

Which of the following is the correct order of the layers/disturbances in the above diagram from OLDEST to YOUNGEST?

• P, K, M, S, R, X, B, J, F
• R, P, K, M, S, X, B, J, F
• P, K, M, S, X, R, B, J, F

Which of these is an intrusion?

• X
• R
• B

Trilobites are index fossils. They lived 251 million years ago. If you found trilobites in layer S, then what can you conclude?

• Layer B is 300 million years old
• Layer S is 251 million years old
• Layer M is 50 million years old