Calibration of the Radiocarbon Time Scale for the Southern Hemisphere: AD 1850-950
Author
McCormac, F. G.Reimer, P. J.
Hogg, A. G.
Higham, T. F. G.
Baillie, M. L.
Palmer, J. G.
Stuiver, M.
Issue Date
2002-01-01Keywords
NothofagusNothofagus dombeyi
South Africa
Southern Hemisphere
Chile
Southern Africa
calibration
Africa
South America
tree rings
Australasia
New Zealand
Coniferales
Gymnospermae
Spermatophyta
Angiospermae
Dicotyledoneae
Lagarostrobos colensoi
Libocedrus bidwilli
Holocene
upper Holocene
Plantae
Cenozoic
Quaternary
geochronology
C 14
carbon
isotopes
radioactive isotopes
absolute age
Metadata
Show full item recordCitation
McCormac, F. G., Reimer, P. J., Hogg, A. G., Higham, T. F. G., Baillie, M. G., Palmer, J., & Stuiver, M. (2002). Calibration of the radiocarbon time scale for the Southern Hemisphere: AD 1850–950. Radiocarbon, 44(3), 641-651.Journal
RadiocarbonAdditional Links
http://radiocarbon.webhost.uits.arizona.edu/Abstract
We have conducted a series of radiocarbon measurements on decadal samples of dendrochronologically dated wood from both hemispheres, spanning 1000 years (McCormac et al. 1998; Hogg et al. This issue). Using the data presented in Hogg et al., we show that during the period AD 950-1850 the 14C offset between the hemispheres is not constant, but varies periodically (approximately 130 yr periodicity) with amplitudes varying between 1 and 10 per mil (i.e. 8-80 yr), with a consequent effect on the 14C calibration of material from the Southern Hemisphere. A large increase in the offset occurs between AD 1245 and 1355. In this paper, we present a Southern Hemisphere high-precision calibration data set (SHCal02) that comprises measurements from New Zealand, Chile, and South Africa. This data, and a new value of 41 +/14 yr for correction of the IntCal98 data for the period outside the range given here, is proposed for use in calibrating Southern Hemisphere 14C dates.Type
Articletext
Language
enISSN
0033-8222ae974a485f413a2113503eed53cd6c53
10.1017/S0033822200032094