Olive shrub buried on Therasia supports a mid-16th century BCE date for the Thera eruption

The precise date of the 2nd millennium BCE (“Minoan”) eruption of Thera (Santorini) has long been a focus of controversy due to a discrepancy between archaeological and radiocarbon-based dating of materials from stratigraphic layers above and below tsunami, ash and pumice deposits resulting from the...

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Bibliographic Details
Published in:Scientific Reports
Main Authors: Pearson, Charlotte, Sbonias, Kostas, Tzachili, Iris, Heaton, Timothy J.
Format: Text
Language:English
Published: Nature Publishing Group UK 2023
Subjects:
Online Access:http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10147620/
http://www.ncbi.nlm.nih.gov/pubmed/37117199
https://doi.org/10.1038/s41598-023-33696-w
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Summary:The precise date of the 2nd millennium BCE (“Minoan”) eruption of Thera (Santorini) has long been a focus of controversy due to a discrepancy between archaeological and radiocarbon-based dating of materials from stratigraphic layers above and below tsunami, ash and pumice deposits resulting from the eruption. A critical, though controversial, piece of evidence has been four segments of a radiocarbon-dated olive tree branch, buried on Thera during the eruption. Here we report new radiocarbon evidence from an olive shrub found carbonized by the same eruption deposits on neighboring Therasia (Santorini). The Therasia olive shrub dates slightly younger than the previous olive branch. Calibrated results and growth increment counts indicate increased probabilities for a mid-16th century BCE date for the eruption, overlapping with multiple volcanic sulfate markers from ice core records.