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28-Aug-2020 15:03

There are two techniques for dating in archaeological sites: relative and absolute dating.Relative dating stems from the idea that something is younger or older relative to something else.Plankton absorbs, Carbon-14 from the ocean much like terrestrial plants absorb Carbon-14 from the air.Since plankton is the foundation of the marine food chain, Carbon-14 is spread throughout aquatic life.In a stratigraphical context objects closer to the surface are more recent in time relative to items deeper in the ground.Although relative dating can work well in certain areas, several problems arise.When it comes to dating archaeological samples, several timescale problems arise.

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Natural disasters like floods can sweep away top layers of sites to other locations.

The extra neutrons in Carbon-14’s case make it radioactive (thus the term, radiocarbon).