What is the Law of Superposition?
In an undisturbed sequence of layers, the oldest layer will always be at the bottom.
What is the Cross-Cutting Law?
Any feature that cuts across a body of sediments is younger than the body of sediment or rock that it cuts across.
REMEMBER! THE CUCUMBER CAME BEFORE THE KNIFE :D
Define fracture
A crack in the rock.
Define fault.
A fracture along which movement has occured.
What is the Law of Inclusions?
If one rock body contains fragments or another rock body, it must be younger than the fragments or rock it contains.
Basically: The inclusions are older than the rocks that contains them.
Define dike.
A rock wall.
Define sill.
A horizontal dike.