Elemental mapping of Mg/Ca intensity ratios in marine mollusc shells using laser-induced breakdown spectroscopy

Niklas Hausmann; Panagiotis Siozos; Andre Lemonis; Andre Carlo Colonese; Harry Kenneth Robson; Demetrios Anglos

doi:10.1039/c7ja00131b

Elemental mapping of Mg/Ca intensity ratios in marine mollusc shells using laser-induced breakdown spectroscopy

Niklas Hausmann, Panagiotis Siozos, Andre Lemonis, Andre Carlo Colonese, Harry Kenneth Robson, Demetrios Anglos

Archaeology

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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.

Original language	English
Pages (from-to)	1-6
Number of pages	6
Journal	JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
Early online date	23 Jun 2017
DOIs	https://doi.org/10.1039/c7ja00131b
Publication status	E-pub ahead of print - 23 Jun 2017

Bibliographical note

© The Royal Society of Chemistry 2017. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details.

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10.1039/c7ja00131b

Hausmann et al._2017_JAAS Article
© The Royal Society of Chemistry 2017. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details.
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Cite this

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title = "Elemental mapping of Mg/Ca intensity ratios in marine mollusc shells using laser-induced breakdown spectroscopy",

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{\textquoteright}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.",

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AU - Siozos, Panagiotis

AU - Lemonis, Andre

AU - Colonese, Andre Carlo

AU - Robson, Harry Kenneth

AU - Anglos, Demetrios

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