Jarosite formation in deep Antarctic ice provides a window into acidic, water-limited weathering on Mars

• Published in: Nature Communications
• Main Authors: Baccolo, Giovanni, Delmonte, Barbara, Niles, P B, Cibin, Giannantonio, Di Stefano, Elena, Hampai, Dariush, Keller, Lindsay, Maggi, Valter, Marcelli, Augusto, Michalski, Joseph, Snead, Christopher, Frezzotti, Massimo
• Other Authors: Baccolo, G, Delmonte, B, Niles, P, Cibin, G, Di Stefano, E, Hampai, D, Keller, L, Maggi, V, Marcelli, A, Michalski, J, Snead, C, Frezzotti, M
• Format: Article in Journal/Newspaper
• Language: English
• Published: Nature Publishing Group 2021
• Subjects: Antarctica; ice core; Planetary sciences; Mars; Jarosite; mineral dust; Antarctic; East Antarctica; Talos Dome; Antarc*
• Online Access: http://hdl.handle.net/10281/299969; https://doi.org/10.1038/s41467-020-20705-z

Many interpretations have been proposed to explain the presence of jarosite within Martian surficial sediments, including the possibility that it precipitated within paleo-ice deposits owing to englacial weathering of dust. However, until now a similar geochemical process was not observed on Earth n...