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April Flowers for redOrbit.com - Your Universe Online A research team from Oxford University's Radiocarbon Accelerator Unit has found a more accurate benchmark for dating materials, especially for older objects, from a series of radiocarbon measurements from Japan's Lake Suigetsu. As far back as 1993, researchers realized sediment cores from Lake Suigetsu would be useful for radiocarbon dating. However, the initial efforts encountered technical problems. The current team extracted...