Relative Dating

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

Relative Geologic Dating 1 To view this animation, click “View” and then “Slide Show” on the top navigation bar.

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

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

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

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

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

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

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