5 rules of relative dating

Superposition: The most basic concept used in relative dating is the law of superposition.Simply stated, each bed in a sequence of sedimentary rocks (or layered volcanic rocks) is younger than the bed below it and older than the bed above it.

You may be wondering why I’m talking about ways to save money on haircuts for my first Frugal Hack series post and it’s quite simple really.Comparing the ratio of parent to daughter yields the age of the sample 1.Radiometric dating is a complex procedure that requires precise measurement 2.This law follows two basic assumptions: (1) the beds were originally deposited near horizontal, and (2) the beds were not overturned after their deposition.Unlike people, you can’t really guess the age of a rock from looking at it.

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