THE AMINOCHRONOLOGY OF MAN-INDUCED SHELL MIDDENS IN CAVES IN NORTHERN SPAIN
| Autor: | José E. Ortiz, Igor Gutiérrez-Zugasti, F. García-Belenguer, J. Abad, F. J. Fortea, Manuel R. González-Morales, Isabel Arribas, Tomás Torres |
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| Rok vydání: | 2009 |
| Předmět: |
Calcite
Archeology History geography geography.geographical_feature_category Horizon (archaeology) biology Aragonite Shell (structure) engineering.material biology.organism_classification Archaeology Paleontology chemistry.chemical_compound Patella (gastropod) Cave chemistry engineering Amino acid dating Mesolithic Geology |
| Zdroj: | Archaeometry. 51:123-139 |
| ISSN: | 1475-4754 0003-813X |
| Popis: | Here, we provide the first report on the ages of 54 archaeological levels in 38 caves in northern Spain by means of the aspartic acid d/l ratio measurements in Patella shells, with good results. For this purpose, we developed an age calculation algorithm that allows the numerical dating of deposits from other archaeological localities in the area and nearby regions. We conclude that the sample size—that is, the number of shells analysed within a single level—reinforces the importance of analysing numerous specimens per horizon and the understanding of the time-averaging concept. The ultrastructure of different species of Patella shells was also studied, showing calcite in their apexes and aragonite at their margins. |
| Databáze: | OpenAIRE |
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