Single-Year German oak and Californian Bristlecone Pine 14C Data at the Beginning of the Hallstatt Plateau from 856 BC to 626 BC
| Autor: | Junghun Park, Michael Friedrich, John Southon, Simon Fahrni, Raimund Muscheler, Lukas Wacker, R. E. Taylor, Benjamin T. Fuller |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
010506 paleontology
Archeology 01 natural sciences law.invention 03 medical and health sciences law Radiocarbon dating 030304 developmental biology 0105 earth and related environmental sciences 0303 health sciences geography Radionuclide Plateau geography.geographical_feature_category biology IntCal Northern Hemisphere Bristlecone Pine biology.organism_classification calibration Solar cycle tree rings Period (geology) radiocarbon General Earth and Planetary Sciences Physical geography Geology Chronology |
| Zdroj: | Fahrni, S M, Southon, J, Fuller, B T, Park, J, Friedrich, M, Muscheler, R, Wacker, L & Taylor, R E 2020, ' Single-Year German oak and Californian Bristlecone Pine 14 C Data at the Beginning of the Hallstatt Plateau from 856 BC to 626 BC ', Radiocarbon, vol. 62, no. 4, pp. 919-937 . https://doi.org/10.1017/RDC.2020.16 |
| DOI: | 10.1017/RDC.2020.16 |
| Popis: | As part of the ongoing effort to improve the Northern Hemisphere radiocarbon (14C) calibration curve, this study investigates the period of 856 BC to 626 BC (2805–2575 yr BP) with a total of 403 single-year 14C measurements. In this age range, IntCal13 was constructed largely from German and Irish oak as well as Californian bristlecone pine 14C dates, with most samples measured with a 10-yr resolution. The new data presented here is the first atmospheric 14C single-year record of the older end of the Hallstatt plateau based on an absolutely dated tree-ring chronology. The data helped reveal a major solar proton event (SPE) which caused a spike in the production rate of cosmogenic radionuclides around 2610/2609 BP. This production event is thought to have reached a magnitude similar to the 774/775 AD production event but has remained undetected due to averaging effects in the decadal calibration data. The record leading up to the 2610/2609 BP event reveals a 11-yr solar cycle with varying cyclicity. Features of the new data and the benefits of higher resolution calibration are discussed. |
| Databáze: | OpenAIRE |
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