Variations of radiocarbon in tree rings: southern hemisphere offset preliminary results
Loading...
Permanent Link
Publisher link
Rights
This article has been published in the journal: Radiocarbon. © 1998 the Arizona Board of Regents on behalf of the University of Arizona. Used with permission.
Abstract
The Queen's University of Belfast, Northern Ireland and University of Waikato, Hamilton, New Zealand radiocarbon laboratories have undertaken a series of high-precision measurements on decadal samples of dendrochronologically dated oak (Quercus patrea) and cedar (Libocedrus bidwillii) from Great Britain and New Zealand, respectively. The results show a real atmospheric offset of 3.4 ± 0.6% (27.2 ± 4.7 ¹⁴C yr) between the two locations for the interval AD 1725 to AD 1885, with the Southern Hemisphere being depleted in ¹⁴C. This result is less than the value currently used to correct Southern Hemisphere calibrations, possibly indicating a gradient in Δ¹⁴C within the Southern Hemisphere.
Citation
McCormac, F. G., Hogg, A. G., Higham, T. F. G., Baillie, M. G. L., Palmer, J. G., … , Hoper, S. T. (1998). Variations of radiocarbon in tree rings: southern hemisphere offset preliminary results. Radiocarbon, 40(3), 1153-1159.