Mediterranean precipitation isoscape preserved in bone collagen δ2H
| Autor: | Noreen Tuross, Damià Ramis, Linda M. Reynard, Miguel Contreras-Martínez, Peter van Dommelen, Saskia E. Ryan, Michele Guirguis, Elisa Pompianu |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Mediterranean climate
010506 paleontology Stable isotope analysis δ18O Isoscapes Fauna Preservation Biological lcsh:Medicine Biology Oxygen Isotopes 01 natural sciences Article Bone and Bones Animals Humans Precipitation Water cycle lcsh:Science 0105 earth and related environmental sciences Herbivore Multidisciplinary Mediterranean Region 010401 analytical chemistry lcsh:R 0104 chemical sciences Geochemistry Spatial variability lcsh:Q Cattle Physical geography Collagen Hydrogen |
| Zdroj: | Scientific Reports Scientific Reports, Vol 10, Iss 1, Pp 1-6 (2020) |
| ISSN: | 2045-2322 |
| Popis: | The prehistory of the Mediterranean region has long been a subject of considerable interest, particularly the links between human groups and regions of origin. We utilize the spatial variation in the δ2H and δ18O values of precipitation (isoscapes) to develop proxies for geographic locations of fauna and humans. Bone collagen hydrogen isotope ratios (δ2H) in cattle (and to a lesser extent, ovicaprids) across the Mediterranean reflect the isotopic differences observed in rainfall (but δ18O values do not). We conclude that δ2H in herbivore bone collagen can be used as a geolocation tracer and for palaeoenvironmental studies such as tracing past isotopic variations in the global hydrological cycle. In contrast, human bone δ2H values are relatively tightly grouped and highly distinct from precipitation δ2H values, likely due to human-specific food practices and environmental modifications. Given the inter-species variability in δ2H, care should be taken in the species selected for study. |
| Databáze: | OpenAIRE |
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