GEOL 1307 Physical Geology

1
GEOL 1307 Physical Geology

• Exercise 22
• Time

2
Geologic Time
3
Relative Time

• Principle of Superposition
• Principle of Original Horizontality
• Principle of Original Continuity
• Principle of Crosscutting Relationships
• Principle of Inclusion
• Unconformities

4
Superposition
5
Original Horizontality
Original Continuity
6
Crosscutting Relationships

• Unconformity

7
Putting It All Together
8
Absolute Time

• Isotopic Dating

9
A Brief History of the Earth