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28.09.2022The Cryo-SEM-EDS techniques of the CCiTUB help to identify changes in seawater over the last 550 million years
The CCiTUB have participated in a study that has analyzed the chemical composition of fluid inclusions in saline rocks, and that has made possible to determine the existence of changes in the composition of seawater over the last 550 million years. In order to carry out the analyses, two complementary analytical techniques were used: Cryo-SEM-EDS (performed at the CCiTUB) and LA-ICP-MS (Virginia Techs).
The study is the result of the collaboration of PhD. Javier García Veigas, technical manager of the Scanning Electron Microscopy Laboratory - Diagonal Campus of the CCiTUB, with researchers from the University of Binghamton (USA) and the University of Sydney (Australia). In the collaboration, the CCiTUB have participated directly in the collection of samples, the analysis of fluid inclusions as well as editing and reviewing the article published in the journal Earth and Planetary Science Letters (indexed in the JCR as quartile Q1, and with an impact factor of 5.78).
The published article is entitled "[Ca2+] and [SO42−] in Phanerozoic and terminal Proterozoic seawater from fluid inclusions in halite: The significance of Ca-SO4crossover points", collects the results of the study and can be consulted at the following link:[+].