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Posted by / 22-Jun-2020 19:16

These variations, or offsets, of up to 20 years in the calibration of precise radiocarbon dating could be related to climatic conditions.

Even modern archaeology experiences disagreements over what the timelines for different periods should look like.Sturt Manning, Professor of Classical Archaeology at Cornell University, and colleagues, recorded a series of carbon 14 dates in tree rings from southern Jordan near Petra that have sent tremors through the field of archaeology.Manning chose to test juniper trees (Juniperus phoenicea) that were of a type used for building construction at Taybet Zaman, Jordan and could give unbroken sequences of rings back several hundred years.This calibration curve adds additional assumptions to the process as well as additional opportunities for error.Manning is the director of the Cornell Tree-Ring Laboratory, and is the lead author of “Fluctuating Radiocarbon Offsets Observed in the Southern Levant and Implications for Archaeological Chronology Debates,” published in the Proceedings of the National Academy of Sciences.

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