TY - JOUR
T1 - Radiocarbon concentrations of wood ash calcite
T2 - Potential for dating
AU - Regev, Lior
AU - Mintz, Eugenia
AU - Weiner, Steve
AU - Boaretto, Elisabetta
N1 - Kimmel Center for Archaeological Science, Weizmann Institute of Science; Swiss Society of Friends of the Weizmann Institute; European Research Council under the European Community [(FP7/2007-2013)/ERC, 229418]We thank Profs Anna Belfer-Cohen and Ofer Bar-Yosef for their help in obtaining the samples from Hayonim Cave. We thank Profs Rami Arav and Richard Freund for the sample from the Cave of Letters. We thank Mr Ulf Fornhammar for his involvement and initiative in the open-fire experiment. Partial funding was provided by the Kimmel Center for Archaeological Science, Weizmann Institute of Science, the Swiss Society of Friends of the Weizmann Institute, and the European Research Council under the European Community's Seventh Framework Programme (FP7/2007-2013)/ERC grant agreement no 229418.
PY - 2011
Y1 - 2011
N2 - Ash is formed when plant calcium oxalate crystals (CaC2O4) decompose to form calcite (CaCO3). We found that ash does retain the original calcium oxalate radiocarbon concentration, but in addition, there is another minor 14C source. This is shown by the presence of a consistent small shift in the pMC and δ13C levels when comparing cellulose and ash from modern and archaeological woods. Possible mechanisms for 14C exchange during combustion or due to diagenesis are considered in order to define parameters for identifying better-preserved wood ash samples.
AB - Ash is formed when plant calcium oxalate crystals (CaC2O4) decompose to form calcite (CaCO3). We found that ash does retain the original calcium oxalate radiocarbon concentration, but in addition, there is another minor 14C source. This is shown by the presence of a consistent small shift in the pMC and δ13C levels when comparing cellulose and ash from modern and archaeological woods. Possible mechanisms for 14C exchange during combustion or due to diagenesis are considered in order to define parameters for identifying better-preserved wood ash samples.
UR - https://www.scopus.com/pages/publications/79953227059
U2 - 10.1017/S0033822200034391
DO - 10.1017/S0033822200034391
M3 - Article
SN - 0033-8222
VL - 53
SP - 117
EP - 127
JO - Radiocarbon
JF - Radiocarbon
IS - 1
ER -