The browser you are using is not supported by this website. All versions of Internet Explorer are no longer supported, either by us or Microsoft (read more here: https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Please use a modern browser to fully experience our website, such as the newest versions of Edge, Chrome, Firefox or Safari etc.

Raimund Muscheler

Raimund Muscheler

Professor

Raimund Muscheler

Single-Year German oak and Californian Bristlecone Pine C Data at the Beginning of the Hallstatt Plateau from 856 BC to 626 BC

Author

  • Simon M. Fahrni
  • John Southon
  • Benjamin T. Fuller
  • Junghun Park
  • Michael Friedrich
  • Raimund Muscheler
  • Lukas Wacker
  • R. E. Taylor

Summary, in English

As part of the ongoing effort to improve the Northern Hemisphere radiocarbon (C) calibration curve, this study investigates the period of 856 BC to 626 BC (2805-2575 yr BP) with a total of 403 single-year C measurements. In this age range, IntCal13 was constructed largely from German and Irish oak as well as Californian bristlecone pine C dates, with most samples measured with a 10-yr resolution. The new data presented here is the first atmospheric C 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.

Department/s

  • Quaternary Sciences
  • MERGE: ModElling the Regional and Global Earth system

Publishing year

2020

Language

English

Pages

919-937

Publication/Series

Radiocarbon

Volume

62

Issue

4

Document type

Journal article

Publisher

Arizona Board of Regents (University of Arizona)

Topic

  • Geology

Keywords

  • calibration
  • IntCal
  • radiocarbon
  • tree rings

Status

Published

ISBN/ISSN/Other

  • ISSN: 0033-8222