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Cited by 251Origins and Evolution of LifePaleontology and Stratigraphy of FossilsGeochemistry and Elemental Analysis

The DOI matches its Crossref record; 60 of the 61 references it cites were found in a registry or an index.

Aqueous Corrosion of Phosphide Minerals from Iron Meteorites: A Highly Reactive Source of Prebiotic Phosphorus on the Surface of the Early Earth

Pasek, Matthew A., Lauretta, Dante S.·2005·Astrobiology
DOI 10.1089/ast.2005.5.515
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Abstract

We present the results of an experimental study of aqueous corrosion of Fe-phosphide under conditions relevant to the early Earth. The results strongly suggest that iron meteorites were an important source of reactive phosphorus (P), a requirement for the formation of P-based life. We further demonstrate that iron meteorites were an abundant source of phosphide minerals early in Earth history. Phosphide corrosion was studied in five different solutions: deionized water, deionized water buffered with sodium bicarbonate, deionized water with dissolved magnesium and calcium chlorides, deionized water containing ethanol and acetic acid, and deionized water containing the chlorides, ethanol, and acetic acid. Experiments were performed in the presence of both air and pure Ar gas to evaluate the effect of atmospheric chemistry. Phosphide corrosion in deionized water results in a metastable mixture of mixed-valence, P-bearing ions including pyrophosphate and triphosphate, key components for metabolism in modern life. In a pH-buffered solution of NaHCO(3), the condensed and reduced species diphosphonate is an abundant corrosion product. Corrosion in ethanol- and acetic acid-containing solutions yields additional P-bearing organic molecules, including acetyl phosphonate and a cyclic triphosphorus molecule. Phosphonate is a major corrosion product of all experiments and is the only P-bearing molecule that persists in solutions with high concentrations of magnesium and calcium chlorides, which suggests that phosphonate may have been a primitive oceanic source of P. The stability and reactivity of phosphonate and hypophosphite in solution were investigated to elucidate reaction mechanisms and the role of mineral catalysts on P-solution chemistry. Phosphonate oxidation is rapid in the presence of Fe metal but negligible in the presence of magnetite and in the control sample. The rate of hypophosphite oxidation is independent of reaction substrate.

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Research works printed but not linked: 5

  1. Forti G., 1974, Lett., 2, 95
  2. Grevesse N., 1998, Rev., 85, 161
  3. Gulick A., 1955, Am. Sci., 43, 479
  4. Neuman M.W., 1970, Curr. Mod. Biol., 3, 253
  5. Platts S.N., 2002, Orig. Life Evol. Biosph., 5, 409

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Metadata

Authors
Pasek, M. A., & Lauretta, D. S.
Affiliations
University of Arizona (US)
ORCID
Venue
Astrobiology
Publisher
SAGE Publications
Published
2005-08
Volume
5
Issue
4
Pages
515-535
ISSN
  • 1531-1074 (ISSN-L)
  • 1557-8070
DOI
10.1089/ast.2005.5.515
OpenAlex
W2092970453
Cited by
251
References
61
Citations by year
2026: 19 · 2025: 22 · 2024: 14 · 2023: 26 · 2022: 19 · 2021: 20 · 2020: 15 · 2019: 13 · 2018: 14 · 2017: 13 · 2016: 15 · 2015: 7 · 2014: 6 · 2013: 7 · 2012: 2
FWCI
4.27
Type
journal article
Language
en
Open access
closed
Locations
  • Astrobiology (publishedVersion)
  • PubMed (publishedVersion)
  • Digital Commons - University of South Florida (University of South Florida) (submittedVersion)
Funders
National Aeronautics and Space Administration
Topics
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Origins and Evolution of Life
  • Physical Sciences › Earth and Planetary Sciences › Paleontology › Paleontology and Stratigraphy of Fossils
  • Physical Sciences › Earth and Planetary Sciences › Geochemistry and Petrology › Geochemistry and Elemental Analysis
Keywords
aqueous corrosion, iron meteorites, phosphonates, hypophosphite, pyrophosphate, triphosphate, diphosphonates, early Earth, origin of life, atmospheric chemistry, mineral catalysis
MeSH terms
Origin of Life, Corrosion, Iron, Minerals, Models, Chemical, Magnetic Resonance Spectroscopy, Organophosphorus Compounds, Phosphates, Phosphorus, Sodium Chloride, Solutions, Water, Sodium Bicarbonate, Earth, Planet, Exobiology, Meteoroids

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