Question: Principle Original Horizontality

Answer: Strata laid out horizontal and deformed afterward

Question: Law of Superposition

Answer: Younger rocks above older rocks

Question: Principle of Cross-Cutting Relationships

Answer: Geologic features that cut through rocks must form

after the rocks that they cut through

Question: Inclusions

Answer: Included igneous/sedimentary rocks are older than

the rocks which they are included

Question: Unconformities

Answer: