TY - JOUR
T1 - Radiocarbon concentrations of wood ash calcite
T2 - Potential for dating
AU - Regev, Lior
AU - Eckmeier, Eileen
AU - Mintz, Eugenia
AU - Weiner, Steve
AU - Boaretto, Elisabetta
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 - http://www.scopus.com/inward/record.url?scp=79953227059&partnerID=8YFLogxK
U2 - 10.1017/S0033822200034391
DO - 10.1017/S0033822200034391
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
AN - SCOPUS:79953227059
SN - 0033-8222
VL - 53
SP - 117
EP - 127
JO - Radiocarbon
JF - Radiocarbon
IS - 1
ER -