Superior Analyses of Iron Meteorites

Moore, C. B.; Lewis, C. F.; Nava, D. F.

doi:10.1007/978-94-010-3411-1_60

Cited by 47 publications

(35 citation statements)

References 10 publications

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“…8. By comparison, 138 iron meteorites of all classes analysed by Moore et al (1969) and Lewis and Moore (1971) all contained less than 1% P, and 95% contained less than 0.5%. The phosphorus-rich particles in Fig.…”

Section: Particles Containing Schreibersitementioning

confidence: 94%

Meteoritic Metal in Apollo 16 Samples

Reed

Taylor

1974

Meteoritics

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Section: Particles Containing Schreibersitementioning

confidence: 94%

Meteoritic Metal in Apollo 16 Samples

Reed

Taylor

1974

Meteoritics

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“…Perhaps the reducing agent was a very small amount of C dissolved in the IVA magma; Moore et al, 1969b reported C concentrations of $100 lg/g in IVA irons, and initial concentrations were presumably higher. If we assume an initial C content of 400 lg/g, an activity coefficient at 1700 K of 0.1 for C in metallic Fe-Ni, and that pSiO = pCO, we obtain equilibrium pressures of 1.4 · 10 À4 atm for the latter, sufficient to condense tridymite at mean concentrations of 0.1 lg/g in regions having 1% porosity.…”

Section: Formation Of Tridymite Veins In Gibeon: Role Of Reducing Gasesmentioning

confidence: 97%

Silica and pyroxene in IVA irons; possible formation of the IVA magma by impact melting and reduction of L-LL-chondrite materials followed by crystallization and cooling

Wasson

Matsunami

Rubin

2006

Geochimica et Cosmochimica Acta

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“…The Cape York meteorite was found in West Greenland in 1818 but has a terrestrial age of ~1000 years (Nishiizumi et al 1987). In addition to metallic alloys, Casas Grandes contains 1.5mg/g phosphorus and Cape York contains 1.4 mg/g phosphorus (Moore et al 1969).…”

Section: Meteoritic Materialsmentioning

confidence: 99%

Laboratory experiments on the weathering of iron meteorites and carbonaceous chondrites by iron‐oxidizing bacteria

Gronstal

Pearson

Kappler³

et al. 2009

Meteorit & Planetary Scien

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Abstract-Batch culture experiments were performed to investigate the weathering of meteoritic material by iron-oxidizing bacteria. The aerobic, acidophilic iron oxidizer (A. ferrooxidans) was capable of oxidizing iron from both carbonaceous chondrites (Murchison and Cold Bokkeveld) and iron meteorites (York and Casas Grandes). Preliminary iron isotope results clearly show contrasted iron pathways during oxidation with and without bacteria suggesting that a biological role in meteorite weathering could be distinguished isotopically. Anaerobic iron-oxidizers growing under pH-neutral conditions oxidized iron from iron meteorites. These results show that rapid biologicallymediated alteration of extraterrestrial materials can occur in both aerobic and anaerobic environments. These results also demonstrate that iron can act as a source of energy for microorganisms from both iron and carbonaceous chondrites in aerobic and anaerobic conditions with implications for life on the early Earth and the possible use of microorganisms to extract minerals from asteroidal material.

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Superior Analyses of Iron Meteorites

Cited by 47 publications

References 10 publications

Meteoritic Metal in Apollo 16 Samples

Meteoritic Metal in Apollo 16 Samples

Silica and pyroxene in IVA irons; possible formation of the IVA magma by impact melting and reduction of L-LL-chondrite materials followed by crystallization and cooling

Laboratory experiments on the weathering of iron meteorites and carbonaceous chondrites by iron‐oxidizing bacteria

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