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

• Main Authors: Baccolo, Giovanni, Delmonte, Barbara, Stefano, Elena, Cibin, Giannantonio, Crotti, Ilaria, Frezzotti, Massimo, Hampai, Dariush, Iizuka, Yoshinori, Marcelli, Augusto, Maggi, Valter
• Format: Text
• Language: English
• Published: 2021
• Subjects: East Antarctica; Ross Sea; Talos Dome; Antarc*; Antarctica; ice core
• Online Access: https://doi.org/10.5194/tc-2021-162; https://tc.copernicus.org/preprints/tc-2021-162/

Thanks to its insolubility, mineral dust is considered a stable proxy in polar ice cores. With this study we show that below an ice-depth of 1000 m, the Talos Dome ice core (Ross Sea sector of East Antarctica) presents evident and progressive signs of post-depositional processes affecting the minera...