Relative dating of rock stars
Divisions in Earth history are recorded on the geologic time scale.For example, the Cretaceous ended when the dinosaurs went extinct.To create the geologic time scale, geologists correlated rock layers.Stenos laws were used to determine the relative ages of rocks.
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.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.Older rocks are at the bottom and younger rocks are at the top.
The early geologic time scale could only show the order of events.
Huttons discovery was a very important event in geology!