Dipartimento di Scienze della Terra

Seminari di Geologia

Martedì 31 gennaio 2023 alle ore 15.00 si svolgerà in aula Ruffini (DST-Unito), ed in diretta webex, il seminario dal titolo:

Exploring the geosphere and the biosphere by LA-ICP-MS

Prof. Antonio Langone (Università di Pavia)

Abstract

The LA-ICP-MS technique is a powerful technique for exploring small volumes of solid material making the geosphere and/or the biosphere. It is particularly useful for decoding temporal/chemical sequences recorded by (zoned) rock-forming minerals and continuously growing biogenic carbonates (corals, bivalves, algae, otoliths, etc.). The last decades have seen a shift in emphasis from single spot determinations to the generation of 2-D compositional images that preserve the spatial context of the analyses. A further improvement for the LA-ICP-MS has consisted in the ability to collect synchronously isotopic ratios, for geochronological purposes, and trace element, for petrological reconstruction from the same material. The seminar will explore the theoretical principles at the base of the LA-ICP-MS, the vantages and disadvantages of using this technique, as well as a few examples of application of the LA-ICP-MS to both geosciences and biosciences will be illustrated.

The speaker:

Antonio Langone is Associate Professor of Geochemistry at the University of Pavia. He dedicated large part of his research activities on the geochemical, isotopic and petrological evolution of the continental crust. In the last years he focused its activity on the deformation-induced geochemical changes at both the mineral and rock scales. He is used to combine in situ geochemical data with microstructure and field observations.

accesso tramite webex: LINK