1. Relative Dating

2. Rock Dating Methods
I. Relative dating: Based on position of fossil in sedimentary rock.
-Can determine whether an object/event is older or younger than other objects/events
Geologic Time: Relative Dating Websim

3. Relative Geologic Dating 1
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4. A. The Law of Superposition
A principle that states that younger rocks lie above older rocks if the layers have not been disturbed.
Younger
Older

5. B. How Rock Layers Become Disturbed
Page 66 in Holt textbook

6. C. Unconformity
A break in the geologic record.
-See Page 68 in Holt text.

8. Relative Dating Exercises
Always start with the oldest rock and work toward the present. List the letters in order, with the oldest at the bottom.
Relative Dating Link

9. Relative Dating Exercises
Always start with the oldest rock and work toward the present. List the letters in order, with the oldest at the bottom.
P, K, M, S, R, Erosion A, B, J, F

10. Place the Events in Order -Use colors to represent each layer.

11. Place the Events in Order -Use colors to represent each layer.
Green, Red, Blue, Green, Red, Blue, Green, Blue, Green, Folding, A, Erosion N, Brown, Orange, Yellow