Abstract
Elemental ratios and -abundances in natural carbonates have been widely used as proxies for environmental parameters. The study of paleoseasonality in bivalves and other sub-annually resolved calcite records requires high resolution measurements of these elemental abundances. Micro X-Ray Fluorescence scanning provides a non-destructive, fast and high resolution method for obtaining elemental abundance records.
In this study, the new Bruker M4 Tornado microXRF scanner is used to obtain 25 µm scale elemental abundance records of Campanian Rudist bivalves (Vaccinites sp. and Torreites sp.) as well as modern bivalve equivalents. A combination of Bruker’s advanced spectral analysis software and the R statistics package is used to assess uncertainties of the microXRF method and to process and interpret large bodies of elemental abundance data.
Multivariate statistics and spectral analysis is applied to identify relationships between elemental abundances in fossil and modern bivalves in an attempt to develop new paleo-environmental proxies. Furthermore, a combination of microXRF data and color analysis is used to assess diagenesis in fossil Rudist bivalves.
Finally, high resolution results of conventional elemental proxies (e.g. Sr/Ca and Mg/Ca) are interpreted in terms of paleo-environmental changes during the growth-time of the bivalve shells. Results of fossil bivalves and modern bivalves are compared.
In this study, the new Bruker M4 Tornado microXRF scanner is used to obtain 25 µm scale elemental abundance records of Campanian Rudist bivalves (Vaccinites sp. and Torreites sp.) as well as modern bivalve equivalents. A combination of Bruker’s advanced spectral analysis software and the R statistics package is used to assess uncertainties of the microXRF method and to process and interpret large bodies of elemental abundance data.
Multivariate statistics and spectral analysis is applied to identify relationships between elemental abundances in fossil and modern bivalves in an attempt to develop new paleo-environmental proxies. Furthermore, a combination of microXRF data and color analysis is used to assess diagenesis in fossil Rudist bivalves.
Finally, high resolution results of conventional elemental proxies (e.g. Sr/Ca and Mg/Ca) are interpreted in terms of paleo-environmental changes during the growth-time of the bivalve shells. Results of fossil bivalves and modern bivalves are compared.
| Original language | English |
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| Title of host publication | Elemental ratios and -abundances in natural carbonates have been widely used as proxies for environmental parameters. The study of paleoseasonality in bivalves and other sub-annually resolved calcite records requires high resolution measurements of these elemental abundances. Micro X-Ray Fluorescence scanning provides a non-destructive, fast and high resolution method for obtaining elemental abundance records. - Monte Verità workshop abstract |
| Place of Publication | Monte Verità Workshop, Ascona, Switserland |
| Pages | 5-5 |
| Number of pages | 1 |
| Publication status | Published - 7 Jul 2015 |
| Event | Monte Verità workshop: "Mesozoic Oceans and Climate" (Climate of the Past - lessons for the future) - Monte Verità, Ascona, Switzerland Duration: 5 Jul 2015 → 10 Jul 2015 |
Conference
| Conference | Monte Verità workshop: "Mesozoic Oceans and Climate" (Climate of the Past - lessons for the future) |
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| Country/Territory | Switzerland |
| City | Ascona |
| Period | 5/07/15 → 10/07/15 |