Data from: Non-traditional isotope perspectives in vertebrate palaeobiology ...
The recent development of multi-collector inductively coupled plasma mass spectrometry (MC-ICP-MS) notably in the disciplines of earth sciences, now allows the precise measurement of isotope ratios, even at low concentration. Non-traditional isotope systems, such as alkaline earth (Ca, Mg) and trans...
| Main Authors: | , , |
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| Format: | Dataset |
| Language: | English |
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Dryad
2018
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.5061/dryad.tc28h https://datadryad.org/stash/dataset/doi:10.5061/dryad.tc28h |
| Summary: | The recent development of multi-collector inductively coupled plasma mass spectrometry (MC-ICP-MS) notably in the disciplines of earth sciences, now allows the precise measurement of isotope ratios, even at low concentration. Non-traditional isotope systems, such as alkaline earth (Ca, Mg) and transition (Cu, Fe, Zn) metals are now being measured in a variety of biological tissues, including bone and teeth. Although our understanding of the environmental and biological mechanisms behind the fractionation of such elements is still in its infancy, some of these isotopes are suspected to fractionate along the food chain, as has been reported in the literature for calcium, magnesium and zinc. Other geochemical methods, such as concentration analyses, permit a prior assessment of diagenesis in the fossils and such an approach indicates that in some circumstances, not only enamel but also dentine or bone can preserve its original biogenic composition. The aims here are to: review the current knowledge surrounding ... : SuppFig1-mass frac line suppFig. S1. Triple isotope plot (δ44/42Ca versus δ43/42Ca in ‰) of all data analysed in this study. Regression line is Y = 0.487 (± 0.022) X – 0.024 (± 0.030) with R2 = 0.974. This is in agreement with mass dependent fractionation slope of 0.507 according to exponential law.SuppFig2-Ca vs MnFig. S2. Manganese plotted against δ44/42Ca values for bone and enamel samples measured in this study.TableS2R1Table S2. Calcium isotope values (expressed as δ44/42Ca and δ43/42Ca (in ‰) relative to standard ICP Ca-Lyon) measured on two Pleistocene assemblages as well as elemental concentrations for some major and trace elements. (1) δ13C and δ15N values from Bochoerens et al. 1997. Tooth type: capital letters refer to the upper tooth row.SuppFig3-Jaurens sampling 1-2Photographs of samples analysed for this study; Canis lupus, Crocuta crocuta, Panthera spelaea, P. pardus, Ursos arctos; Jaurens, Corrèze, France.SuppFig4-Jaurens sampling 2-2Figure S4. Photographs of samples analysed for this study; ... |
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