The new frontier of microstructural impurity research in polar ice

• DOI: 10.1017/aog.2023.61
• Publication Date: 2023-09-21T02:17:57Z
• Authors: Nicolas Stoll; Pascal Bohleber; Remi Dallmayr; Frank Wilhelms; Carlo Barbante; Ilka Weikusat
• Keywords: Ice core; Firn; Frontier

Abstract Deciphering the localisation of solid and dissolved impurities on micron-scale in glacial ice remains a challenge, but is critical to understand integrity core records internal deformation. Here we report state-of-the-art microstructural impurity research by highlighting recent progress bringing together cryo-Raman spectroscopy laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). We show potential both methods discuss possibilities improve inter-method approaches aiming for more holistic understanding evolution throughout column, including post-depositional processes. In this framework, elaborate future priorities such as LA-ICP-MS imaging firn samples integrating large cryo-cell with capabilities.