Studies in extracting isotopic information from archaeological bone
Bone density fractionation has a potential to recover lifetime signatures by separating out diagenetic signals as well as by tracing the different stages of an individual's diet. In methodological terms, this study presents improvements on Bell et al. 's work (200 I) on particle size distribution. The validation of the method was carried out by bomb radiocarbon dating by tracking the different osteonal ages of the individual's lifetime. I have shown that 14C dating of the collagen and the tissue age of the bone fractions can be qualitatively compared against models of bone turnover, using 14C pulse of the atmospheric bomb curve. The application of the method has been extended to bone apatite carbonate. Although bone carbonate is important in palaeodietary studies, it has been questioned so far due to the difficulty of removing diagenetic carbonate and the lack of any suitable test for validity. I have obtained consistent results using combined density fractionation and differential dissolution methods; that is, lower (iI3Capa values are observed in lighter, less diagenetically altered density fraction, from bone carbonate. Three archaeological sites (i.e. Danebury, Lechlade, Balatonaszarsz6) tell a similar
Shin, Ji Young
Studies in extracting isotopic information from archaeological bone. Bone density fractionation has a potential to recover lifetime signatures by separating out diagenetic signals as well as by tracing the different stages of an individual's diet. In methodological terms, this study presents improvements on Bell et al. 's work (200 I) on particle size distribution. The validation of the method was carried out by bomb radiocarbon dating by tracking the different osteonal ages of the individual's lifetime. I have shown that 14C dating of the collagen and the tissue age of the bone fractions can be qualitatively compared against models of bone turnover, using 14C pulse of the atmospheric bomb curve. The application of the method has been extended to bone apatite carbonate. Although bone carbonate is important in palaeodietary studies, it has been questioned so far due to the difficulty of removing diagenetic carbonate and the lack of any suitable test for validity. I have obtained consistent results using combined density fractionation and differential dissolution methods; that is, lower (iI3Capa values are observed in lighter, less diagenetically altered density fraction, from bone carbonate. Three archaeological sites (i.e. Danebury, Lechlade, Balatonaszarsz6) tell a similar
studies extract isotopic information archaeological_bone bone density potential recover lifetime signatures separate diagenetic signal well trace different_stage individual diet methodological term study present improvement bell work particle size distribution validation method carry bomb radiocarbon_date track different age individual lifetime show date collagen tissue age bone fraction qualitatively compare model bone turnover use pulse bomb curve application_method extend bone carbonate although bone carbonate important palaeodietary study question far due_difficulty remove diagenetic carbonate lack suitable test_validity obtain consistent use combined density differential dissolution method low value observe less altered density fraction bone carbonate archaeological_site tell similar