ArticleProceedings of the National Academy of Sciences of the United States of America2013
Anoxic photochemical oxidation of siderite generates molecular hydrogen and iron oxides.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed.
- The Ascent of Miniproteins.Biochemistry · 2026Review
- Photoactive elemental sulfur allotropes promote extensive ammonia synthesis in Venus-like atmosphere.Nature communications · 2025Article
- Siderite and ferric oxyhydroxides imply interlinked carbon, iron, and halogen cycles on Mars.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Archean phosphorus recycling facilitated by ultraviolet radiation.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
- Anoxic photochemical weathering of pyrite on Archean continents.Science advances · 2022Article
- Anoxic photogeochemical oxidation of manganese carbonate yields manganese oxide.Proceedings of the National Academy of Sciences of the United States of America · 2020Article
- The origin of life as a planetary phenomenon.Science advances · 2020Review
- The Paleomineralogy of the Hadean Eon Revisited.Life (Basel, Switzerland) · 2018Review
- Geobiological feedbacks and the evolution of thermoacidophiles.The ISME journal · 2018Article
- A survey of photogeochemistry.Geochemical transactions · 2017Review
- From Light to Life.Origins of life and evolution of the biosphere : the journal of the International Society for the Study of the Origin of Life · 2015Article
- Mechanisms involved in Fe(III) respiration by the hyperthermophilic archaeon Ferroglobus placidus.Applied and environmental microbiology · 2015Article
- Evolutionary history of redox metal-binding domains across the tree of life.Proceedings of the National Academy of Sciences of the United States of America · 2014Article
- Superoxide dismutases and superoxide reductases.Chemical reviews · 2014Review
- Trajectories of martian habitability.Astrobiology · 2014Review
- Mapping metabolism onto the prebiotic organic chemistry of hydrothermal vents.Proceedings of the National Academy of Sciences of the United States of America · 2013Article
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4 authors.
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Abstract
Photochemical reactions of minerals are underappreciated processes that can make or break chemical bonds. We report the photooxidation of siderite (FeCO3) by UV radiation to produce hydrogen gas and iron oxides via a two-photon reaction. The calculated quantum yield for the reaction suggests photooxidation of siderite would have been a significant source of molecular hydrogen for the first half of Earth's history. Further, experimental results indicate this abiotic, photochemical process may have led to the formation of iron oxides under anoxic conditions. The reaction would have continued through the Archean to at least the early phases of the Great Oxidation Event, and provided a mechanism for oxidizing the atmosphere through the loss of hydrogen to space, while simultaneously providing a key reductant for microbial metabolism. We propose that the photochemistry of Earth-abundant minerals with wide band gaps would have potentially played a critical role in shaping the biogeochemical evolution of early Earth.
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