4:00 PM - 4:15 PM
[R5-20] Reproduction of oxygen fugacity of upper atmosphere based on artificial micrometeorites
Keywords:micro meteorite, oxygen fugacity, atmospheric heating, troilite, iron meteorite
Micrometeorites are the most abundant planetary materials accumulating to the Earth. Melted micrometeorites can record fO2 of upper atmosphere. Magnetite crystals occur in artificial micrometeorites produced with fO2 lower than FMQ buffer curve. Oxidation of micrometeorites may be controlled by accumulated interaction with oxygen molecules in the heating path of the meteorites.