Define relative dating

It is possible to tell the number of years ago a particular rock or archeological site had been formed.Two broad categories of classification methods are relative dating and absolute dating.

Between the years of 17, James Hutton and William Smith advanced the concept of relative dating.Hutton, a Scottish geologist, first proposed formally the fundamental principle used to classify rocks according to their relative ages.He concluded, after studying rocks at many outcrops, that each layer represented a specific interval of geologic time.The primary difference is that absolute dating assigns an actual time or age to an event or object.Relative dating simply says one is older than the other but no age is specified.Though using similar methods, these two techniques differ in certain ways that will be discussed in this article.

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