Pre-Lab Exercise- Lab 2 Name _________________________

Relative Time and Sequence of Events

1) Read the introduction to Lab 3 (p. 3.1 to 3.4) in your lab manual.

2) Define the following concepts:

Stratigraphy

Law of Superposition

Law of Original Horizontality

Law of Original Continuity

Principle of Cross-Cutting Relationships

Principle of Inclusions

Nonconformity

Angular Unconformity

Disconformity