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Beyond radiocarbon: how archaeologists date artefacts
Carbon Dating | friendsofcrescentbeach.com
Rachel Wood does not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment. Republish our articles for free, online or in print, under Creative Commons licence. Radiocarbon dating has transformed our understanding of the past 50, years. Professor Willard Libby produced the first radiocarbon dates in and was later awarded the Nobel Prize for his efforts.
Carbon dating is a technique used to determine the approximate age of once-living materials. It is based on the decay rate of the radioactive carbon isotope 14 C, a form of carbon taken in by all living organisms while they are alive. Before the twentieth century, determining the age of ancient fossils or artifacts was considered the job of paleontologists or paleontologists, not nuclear physicists.
It was while working in the Kent Laboratory building in the s that Prof. Willard Libby and his UChicago associates developed radiocarbon dating -- an innovative method to measure the age of organic materials. Scientists soon used the technique on materials ranging from the dung of a giant sloth from a Nevada cave; seaweed and algae from Monte Verde, Chile, the oldest archaeological site in the Western Hemisphere; the Shroud of Turin; and the meteorite that created the Henbury Craters in northern Australia. The society will officially recognize the achievement at 4 p. This year marks the 70th anniversary of Libby's first publication on radiocarbon dating, which appeared in the June 1, issue of Physical Review.