Carbon dating rhino horn

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Carbon Dating uses Nuclear Tests to Track Illegal Ivory

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Will DNA mapping for rhinos and a complete UK ban on ivory sales help reduce poaching? - Lexology

Nuclear fallout from Cold War nuclear tests could help to identify poached ivory. Poaching of elephant tusks and rhino horns is at an all time high, according to a CITES report released last year, with about 30, elephants killed each year. But taking tusks for ivory hasn't always been illegal - a global trade ban only came into effect in - so when those policing the ban seize an ivory artifact, they need to know when it was actually taken from the animal. That's where the fallout comes in. It helps with a particular type of radiocarbon dating, which relies on measuring the concentration of carbon, a radioactive isotope with a half life of about 5, years. Carbon is produced when energetic neutrons hit nitrogen atoms; normally, these neutrons are produced when cosmic rays smash into our atmosphere. Plants absorb that radioisotope along with the carbon dioxide they take in.
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Australian government does carbon dating checks on rhino horns at auction

Senior research scientist Alexander Cherkinsky specializes in the preparation of samples for Carbon testing. He directed the pretreatment and processing of the dinosaur bone samples with the Accelerator Mass Spectrometer, though he did not know the bones were from dinosaurs, and he signed the reports. Carbon dating at this facility is certainly the very best.
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One of the items auctioned at Leonard Joels auction house, a 3kg raw horn over 50cm in length , came with a statutory declaration from the owner saying it was purchased in the mid s and had a carbon dating certificate to prove its provenance. Another horn auctioned at Leonard Joels, about one kilogram and 30cm long also had a carbon dating certificate and statutory declaration saying it was imported to Australia in the s to prove its provenance. When you make a statutory declaration, you are declaring that the statements in it are true. The large libation cup, carved and pierced to its entire length, was auctioned at Sothebys. The little rhino cup auctioned at Leonard Joels was
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