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

Research output: Contribution to journalArticlepeer-review

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 languageEnglish
Pages (from-to)1-6
Number of pages6
JournalJOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
Early online date23 Jun 2017
DOIs
Publication statusE-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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