October 19, 2012
Clock Set

By using sediments from a lake in Japan, scientists are planning on pushing carbon 14 "calibration" back much further than it was before. The initial theories around C14 dating assumed carbon absorption was constant, but it was later discovered this was not the case. Tree rings were used to account for variations but only went back about 14k years. The new data promises to push that marker back all the way to 50k+ years.

Posted by scott at October 19, 2012 06:26 AM

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