Geologic Time Scale

B is higher so it is OLDER than D

C is older than E, even though it is FOLDING upwards

G is older than all the other layers

A is higher, so is OLDEST layer

D,C,B,A

A,B,C,D

A,B,D,C

C,D,B,A

Principle stating that if one geologic feature cuts across another feature, the feature that it cuts across is older.

Principle stating that younger rocks lie above older rocks.

matching rocks and fossils from separate locations

Gaps in rock sequences

Scientists who study Earth and the processes that have shaped Earth over time

the actual age in years of an event or object

The actual age in years of an event or object

geologic processes that occur today are similar to those that have occurred in the past

Scientists who study Earth and the processes that have shaped Earth over time