Deep ice as a geochemical reactor: insights from iron speciation and mineralogy of dust in the Talos Dome ice core (East Antarctica)

• Published in: The Cryosphere
• Main Authors: Baccolo, Giovanni, Delmonte, Barbara, Di Stefano, Elena, Cibin, Giannantonio, Crotti, Ilaria, Frezzotti, Massimo, Hampai, Dariush, Iizuka, Yoshinori, Marcelli, Augusto, Maggi, Valter
• Format: Article in Journal/Newspaper
• Language: English
• Published: Copernicus Publications 2021
• Subjects: article; Verlagsveröffentlichung; East Antarctica; Ross Sea; Talos Dome; Antarc*; Antarctica; ice core; The Cryosphere
• Online Access: https://doi.org/10.5194/tc-15-4807-2021; https://noa.gwlb.de/receive/cop_mods_00058389; https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00058034/tc-15-4807-2021.pdf; https://tc.copernicus.org/articles/15/4807/2021/tc-15-4807-2021.pdf

Thanks to its insolubility, mineral dust is considered a stable proxy in polar ice cores. With this study we show that the Talos Dome ice core (TALDICE, Ross Sea sector of East Antarctica) displays evident and progressive signs of post-depositional processes affecting the mineral dust record below 1...