Discovery of annual growth in a modern olive branch based on carbon isotopes and implications for the Bronze Age volcanic eruption of Santorini
Open accessAbstract
The volcanic eruption of Santorini in the Bronze Age left detectable debris across the Mediterranean, serving as an anchor in time for the region, synchronizing chronologies of different sites. However, dating the eruption has been elusive for decades, as radiocarbon indicates a date about a century earlier than archaeological chronologies. The identification of annual rings by CT in a charred olive branch, buried alive beneath the tephra on Santorini, was key in radiocarbon dating the eruption. Here, we detect a verified annual growth in a modern olive branch for the first time, using stable isotope analysis and high-resolution radiocarbon dating, identifying down to the growing season in some years. The verified growth is largely visible by CT, both in the branch’s fresh and charred forms. Although these results support the validity of the Santorini branch date, we observed some chronological anomalies in modern olive and simulated possible date range scenarios of the volcanic eruption of Santorini, given these observed phenomena. The results offer a way to reconcile this long-standing debate towards a mid-sixteenth century BCE date.
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The difference between dataset (a) and dataset (c) contradicts suggestions of a substantial missing period of time between the last dated olive-wood segments found on Thera and the time of the eruption.
“and suggestions of a substantial missing period of time between the last dated olive-wood segments found on Thera and the time of the eruption [147].”
From Second Intermediate Period date for the Thera (Santorini) eruption and historical implications (2022) · cites this paper as [147]
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Sorted by citations
Second Intermediate Period date for the Thera (Santorini) eruption and historical implications
Manning, S. W. (2022) · PLOS ONE · doi:10.1371/journal.pone.0274835 · Cited by 13 · see citing works
Olive shrub buried on Therasia supports a mid-16th century BCE date for the Thera eruption
Pearson, C., Sbonias, K., Tzachili, I., & Heaton, T. J. (2023) · Scientific Reports · doi:10.1038/s41598-023-33696-w · Cited by 13 · see citing works
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“This sometimes enables annual increments to be recognized, whether by visual analysis or via stable isotope or radiocarbon (Camarero et al. 2021; Ehrlich et al. 2021), but often this is not possible from visual inspection (Cherubini et al. 2013).”
Background
- Authors
- Ehrlich, Y., Regev, L., & Boaretto, E.
- Affiliations
- Weizmann Institute of Science (IL)
- Corresponding author
- Boaretto, Elisabetta
- Venue
- Scientific Reports
- Published
- 2021-01-12
- Volume
- 11
- Issue
- 1
- Pages
- 704-704
- ISSN
- 2045-2322 (ISSN-L)
- PMC
- PMC7804959
- OpenAlex
- W3120133137
- Cited by
- 16
- References
- 12
- Citations by year
- 2025: 1 · 2024: 1 · 2023: 6 · 2022: 6 · 2021: 2
- FWCI
- 2.82
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Locations
- Scientific Reports (publishedVersion, cc-by)
- Europe PMC (PubMed Central) (publishedVersion, other-oa)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Funders
- Weizmann Institute of Science
- Topics
- Physical Sciences › Earth and Planetary Sciences › Paleontology › Archaeology and ancient environmental studies
- Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Tree-ring climate responses
- Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Geology and Paleoclimatology Research
- Keywords
- Santorini eruption, Bronze Age, olive branch, annual growth rings, carbon isotopes, radiocarbon dating, tephra, eruption chronology, chronology synchronization, charred wood, computed tomography, Minoan eruption
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