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: Ministero dell'Istruzione, dell'Università e della Ricerca, EC | Horizon 2020 Framework Programme, Diamond Light Source, NASA ISFM grants to Johnson Space Center
• Format: Article in Journal/Newspaper
• Language: English
• Published: Springer Science and Business Media LLC 2021
• Subjects: General Physics and Astronomy; General Biochemistry, Genetics and Molecular Biology; General Chemistry; Antarctic; East Antarctica; Talos Dome; Antarc*; Antarctica; ice core
• Online Access: http://dx.doi.org/10.1038/s41467-020-20705-z; http://www.nature.com/articles/s41467-020-20705-z.pdf; http://www.nature.com/articles/s41467-020-20705-z

Abstract 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 o...