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| Gehlen, M; Bassinot, F; Beck, L; Khodja, H. |
| Micro particle-induced X-ray emission (PIXE) is a nondestructive elemental analysis technique that can be used to map the distribution of elements with a spatial resolution of +/-4 mum(2) and a penetration depth of +/-2 mum in a calcite matrix. To test its potential to improve our understanding of trace element distribution in foraminifera shells, we mapped the Mg distribution across individual chambers of the planktonic species Globigerinoides ruber. G. ruber shells were picked from equatorial Atlantic surface sediments (Sierra Leone Rise). They ranged from well-preserved to heavily dissolved tests. The mapping of trace elements across test chambers made it possible to discriminate between variability inherent to the shell material and heterogeneity... |
| Tipo: Text |
Palavras-chave: Foraminifera; Mg/Ca; Dissolution; Trace elements; Instruments and techniques. |
| Ano: 2004 |
URL: https://archimer.ifremer.fr/doc/00228/33892/32319.pdf |
