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Elemental mapping of Mg/Ca intensity ratios in marine mollusc shells using laser-induced breakdown spectroscopy
- Source :
- Journal of Analytical Atomic Spectrometry
- Publication Year :
- 2017
- Publisher :
- Royal Society of Chemistry (RSC), 2017.
-
Abstract
- Records of past environmental conditions in shell carbonate are usually derived from compositional analysis (i.e. trace elements, stable oxygen, carbon, and nitrogen isotopes) performed along the direction of the shell’s growth and thus through time. However, compositional variations within isochronous parts of the shell can distort the environmental record and are difficult to assess without extensively mapping the whole shell. Here we apply Laser Induced Breakdown Spectroscopy (LIBS) to efficiently map the elemental change throughout the growth increments of three mollusc shells (Conomurex fasciatus, Ostrea edulis, Anomalocardia flexuosa). We employ an automated LIBS setup to map the Mg/Ca composition of whole shell sections with over 2,000 data points per hour. By assessing the spatial variability of Mg/Ca intensity ratios this method has the potential to mitigate distorted results while increasing the resolution of derived palaeoenvironmental information.
- Subjects :
- 010401 analytical chemistry
Resolution (electron density)
Shell (structure)
Analytical chemistry
chemistry.chemical_element
Mineralogy
010502 geochemistry & geophysics
Intensity ratio
01 natural sciences
Isotopes of nitrogen
0104 chemical sciences
Analytical Chemistry
chemistry.chemical_compound
chemistry
Carbonate
Spatial variability
14. Life underwater
Laser-induced breakdown spectroscopy
Carbon
Spectroscopy
0105 earth and related environmental sciences
Subjects
Details
- ISSN :
- 13645544 and 02679477
- Volume :
- 32
- Database :
- OpenAIRE
- Journal :
- Journal of Analytical Atomic Spectrometry
- Accession number :
- edsair.doi.dedup.....ad17769bb33393c2e40a5cbd8005ced4