PRESENTATION OUTLINE
Superposition:
Youngest layer on top oldest at the bottom
Inclusion:
If a rock contains another object, it must be younger than the intruding rock
Cross-cut Relationships:
If a rock cuts another rock it must be younger than the rock it's cutting
Original Horizontality:
Sediment is deposited horizontally because of gravity
Faunal Succession:
Different species's fossils appear in a definite order
