Radiocarbon pottery dating: the chemical compounds of organic fractions, the reliability of 14C dates (preliminary results)

Geochronometria

Eugeny D. Skakovskii¹  Ganna I. Zaytseva²  Goran Possnert³ 

[1] National Academy of Sciences of Belarus;Russian Academy of Sciences;Tandem Laboratory of Uppsala University

关键词: Neolithic;    pottery;    chemical composition;    radiocarbon chronology;    nuclear magnetic resonance;   

DOI  :  10.2478/s13386-012-0018-0

学科分类：社会科学、人文和艺术（综合）

来源: Politechnika Slaska * Instytut Fizyki

【 摘 要 】

In recent times, a large number of radiocarbon dates appeared for the Southern Neolithic on the basis of pottery dating because other organic matter has practically not been preserved. There are two organic fractions of pottery useful for dating: food residues and carbon from the pottery matrix itself. Food residues are often dated, but this material is not always preserved and is prone to being removed during the cleaning of the pottery. The clay mass of the pottery contains carbon, often directly visible upon breaking of the pottery. The article focusses on determining the chemical composition of the organic fractions in the pottery and the origin of the carbon. For this aim we used the nuclear magnetic resonance (NMR) method to identify the chemical compounds in the food residue and in the pottery matrix.

【 授权许可】

Unknown