Cost of radio carbon dating

25-Nov-2018 11:13

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Very small samples (less than 300 mg) are analyzed by accelerator mass spectrometry (AMS).We have subcontractor agreements with several AMS facilities around the world.Some examples of abnormal C14 results include testing of recently harvested, live mollusc shells from the Hawaiian coast that showed that they had died 2000 years ago and snail shells just killed in Nevada, USA, dated in at 27,000 years old.A freshly killed seal at Mc Murdo Sound, Antarctica, yielded a death age of 1300 years ago.The radiocarbon method measures the rate of decay in the C14 of organic matter therefore estimating how long ago death occurred.Archaeologists can use this method to date bone, teeth, plants, seeds, burned food remains, coprolites, wood, and any artefact that contains organic materials such as an iron axe head (iron cannot be tested using C14) with a wooden handle or a bronze spear with a wooden shaft.Organic matter, being porous, can easily be contaminated by organic carbon in groundwater.

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Nitrogen atoms in the upper atmosphere are struck by cosmic radiation and create C14 atoms.The unreliability of carbon 14 date testing is a great concern to honest archaeologists.

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