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Relative dating lesson
In the diagram below, dike cuts through all four layers.
Therefore, layer 1 is the oldest, layer 2 is the second oldest, layer 3 is the third oldest, layer 4 is the fourth oldest, and dike is the youngest layer of rock. This Diagram is all about the Laws of Stratigraphy.
He realized that for both to occur would take an extremely long time. It encompasses the most recent forms of life on Earth.
Relative dating lesson non verbal communication dating
The early geologic time scale could only show the order of events.
This is figured by the law of cross-cutting relationships.
The layers are always older than the rock that cuts across them.
Sediments were deposited in ancient seas in horizontal, or flat, layers.
If sedimentary rock layers are tilted, they must have moved after they were deposited.