Define relative dating science

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In a family like this it’s hard to tell how people are related simply by age. Early geologists had no way to determine the absolute age of a geological material.

Hutton’s discovery was a very important event in geology!

Hutton determined that the rocks were deposited over time. Hutton knew that deposition and erosion are very slow.

He realized that for both to occur would take an extremely long time.

More modern correlation technologies include use of marine stable isotope records, paleomagnetic dating, tephrachronology, geomorphological methods, sedimentation characteristics, and other geochemical and radiometric methods.

Relatively young deposits can be sometimes dated using tree rings, varved-lake sediments, coral growth patterns, and other methods.

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