BY HANNAH OSBORNE ON 11/5/19 AT 6:33 AM EST
"In some trees, Carbon 14 is taken from the body of the tree with the core for the test," the statement said, according to a translation. "If no sampling is made from the first ring formed in the middle of the tree trunk, the Carbon 14 test will not give the real result. In summary, this test is not suitable for age determination of olive trees."
Instead, the team from Ankara University used luminescence dating by taking soil samples from the tree's roots. According to the USGS, this method of dating measures the energy of photons released by a given object. Radiation that has been absorbed and stored can be released with light simulation, and from this scientists can work out when the object was last exposed to sunlight. The longer something has not been exposed to sunlight, the stronger the luminescence signal. However, once exposed to sunlight, the signal is removed, resetting this "clock," the USGS explains.
The newspaper added that the Ata Ağaç tree still produces fruit and the olives collected are used to produce olive oil. ATA Agac said there are many ancient olive trees in Turkey and it is now preparing to launch a project to recognize their importance.
Here the details of article;
Indirect dating of an olive tree planting event using luminescence of the sediments lying beneath the roots of the tree: a pilot study in the south-western part of Anatolia, Turkey
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