Methane production by large iron meteorite impacts on early Earth

Meteorite Impact-Induced Rapid NH3 Production on Early Earth: Ab Initio Molecular Dynamics Simulation

NH3 is an essential molecule as a nitrogen source for prebiotic amino acid syntheses such as the Strecker reaction. Previous shock experiments demonstrated that meteorite impacts on ancient oceans would have provided a considerable amount of NH3 from atmospheric N2 and oceanic H2O through reduction by meteoritic iron. However, specific production mechanisms remain unclear, and impact velocities...

Abstracts for Th International Workshop on Meteorite Impact on Th Early Earth

S FOR TH INTERNATIONAL WORKSHOP ON METEORITE IMPACT ON TH EARLY EARTH

The early formation of the IVA iron meteorite parent body

Rock Damage Caused by Underground Excavation and Meteorite Impacts

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Methanogens rapidly transition from methane production to iron reduction.

Methanogenesis, the microbial methane (CH4 ) production, is traditionally thought to anchor the mineralization of organic matter as the ultimate respiratory process in deep sediments, despite the presence of oxidized mineral phases, such as iron oxides. This process is carried out by archaea that have also been shown to be capable of reducing iron in high levels of electron donors such as hydro...