1. 2 Types

2.  Relative Dating  Absolute Dating

3.  1. Law of superposition – youngest layer on top; oldest layer on bottom.

4.  2. Disturbed Rock layers –  Rock layers are horizontal, if not, there has been a disturbance. 4 ways – Faults, Intrusion, Folding, and Tilting.  ERROR - Unconformity

5.  Draw the flow map in your notes.

6.  Geologist use relative dating to determine the order in which events happen.

7.  The principle of superposition states that in undisturbed rock sequences, younger layers lie above older layers.

8.  Folding and tilting are 2 events that disturb rock layers.

9.  Faults and intrusions are 2 features that disturb rock layers.

10.  The known rock and fossil record is indicated by the geologic column.

11.  Geologist examine the relationship between rock layers and the structures that cut across them in order to determine relative age.