Relative age dating superposition updating out of date drivers
By applying the law of superposition, relative dates can be determined.This law states that in any undisturbed sequence of rocks deposited in layers, the youngest layer is on top and the oldest is on the bottom.Like the other kind of dating, geologic dating isn’t always simple.
Yet, you’ve heard the news: Earth is 4.6 billion years old. That corn cob found in an ancient Native American fire pit is 1,000 years old. Geologic age dating—assigning an age to materials—is an entire discipline of its own.
Relative dating is used to arrange geological events, and the rocks they leave behind, in a sequence.
The method of reading the order is called stratigraphy (layers of rock are called strata).
Here is an easy-to understand analogy for your students: relative age dating is like saying that your grandfather is older than you.
Absolute age dating is like saying you are 15 years old and your grandfather is 77 years old.