BURGOS, SPAIN—Nature News reports that a new dating technique has revealed that traces of hearths found in the same layer of soil at El Salt, a Neanderthal site in western Spain, came from fires made over a period of more than 200 years some 50,000 years ago. Because the hearths were all found in the same layer of the archaeological site, it had been previously thought that they had all been made by a single group of Neanderthals. But archaeologist Ángela Herrejón-Lagunilla of the University of Burgos and her colleagues analyzed magnetic minerals in the hearths and then compared the magnetic minerals to a model of changes in the Earth’s magnetic field. They were able to determine that the oldest fire pit at the site was about 200 years older than the youngest one. The scientists also found that decades passed between the usage of each hearth at the site, suggesting that Neanderthals returned to El Salt over many generations. “The main potential [of this technique] is to reach a timescale close to the human life,” Herrejón-Lagunilla explained. To read about what Neanderthals in Spain ate, go to "Neanderthal Medicine Chest," one of ARCHAEOLOGY's Top 10 Discoveries of 2012.
Spain’s Neanderthal Hearths Dated With New Technique
News June 10, 2024
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