ArticleNature communications2021
Jarosite formation in deep Antarctic ice provides a window into acidic, water-limited weathering on Mars.
Article in Nature communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 47 citations in OpenAlex.
- Geochemical characterization of millions of individual atmospheric particles entrapped in Antarctic ice across the last glacial-interglacial transition.Scientific reports · 2026Article
- Atmospheric oxidation drove climate change on Noachian Mars.Nature communications · 2024Article
- Structural Effects of Aluminum and Iron Occupancy in Minerals of the Jarosite-Alunite Solid Solution.ACS earth & space chemistry · 2024Article
- Freeze-thaw cycles drove chemical weathering and enriched sulfates in the Burns formation at Meridiani, Mars.Science advances · 2024Article
- Antarctic evidence for an abrupt northward shift of the Southern Hemisphere westerlies at 32 ka BP.Nature communications · 2023Article
- Sustained wet-dry cycling on early Mars.Nature · 2023Article
- Physical properties of computationally informed phyto-engineered 2-D nanoscaled hydronium jarosite.Scientific reports · 2023Article
- Unexplored Antarctic meteorite collection sites revealed through machine learning.Science advances · 2022Article
- Ice core evidence for atmospheric oxygen decline since the Mid-Pleistocene transition.Science advances · 2021Article
- Intense subaerial weathering of eolian sediments in Gale crater, Mars.Science advances · 2021Article
Corrections and comments
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Authors and funding
12 authors at 8 institutions in 4 countries.
Funding
No grant is acknowledged in the PubMed record.
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 on Earth nor in other planetary settings. We report a multi-analytical indication of jarosite formation within deep ice. Below 1000 m depth, jarosite crystals adhering on residual silica-rich particles have been identified in the Talos Dome ice core (East Antarctica) and interpreted as products of weathering involving aeolian dust and acidic atmospheric aerosols. The progressive increase of ice metamorphism and re-crystallization with depth, favours the relocation and concentration of dust and the formation of acidic brines in isolated environments, allowing chemical reactions and mineral neo-formation to occur. This is the first described englacial diagenetic mechanism occurring in deep Antarctic ice and supports the ice-weathering model for jarosite formation on Mars, highlighting the geologic importance of paleo ice-related processes on this planet. Additional implications concern the preservation of dust-related signals in deep ice cores with respect to paleoclimatic reconstructions and the englacial history of meteorites from Antarctic blue ice fields.
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Registered trials
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