In:
Radiocarbon, Cambridge University Press (CUP), Vol. 49, No. 2 ( 2007), p. 447-457
Abstract:
It is well known that radiocarbon years do not directly equate to calendar time. As a result, considerable effort has been devoted to generating a decadally resolved calibration curve for the Holocene and latter part of the last termination. A calibration curve that can be unambiguously attributed to changes in atmospheric 14 C content has not, however, been generated beyond 26 kyr cal BP, despite the urgent need to rigorously test climatic, environmental, and archaeological models. Here, we discuss the potential of New Zealand kauri ( Agathis australis ) to define the structure of the 14 C calibration curve using annually resolved tree rings and thereby provide an absolute measure of atmospheric 14 C. We report bidecadally sampled 14 C measurements obtained from a floating 1050-yr chronology, demonstrating repeatable 14 C measurements near the present limits of the dating method. The results indicate that considerable scope exists for a high-resolution 14 C calibration curve back through OIS-3 using subfossil wood from this source.
Type of Medium:
Online Resource
ISSN:
0033-8222
,
1945-5755
DOI:
10.1017/S0033822200042375
Language:
English
Publisher:
Cambridge University Press (CUP)
Publication Date:
2007
detail.hit.zdb_id:
2028560-7
SSG:
11
SSG:
13