What is it about?
Oxygen isotope compositions of two minerals can be used to calculate the equilibrtaion temperatures of the minerals. We have used the isotope data of pyroxene and olivine in two Martian meteorites called as Dar al Ghani (DaG) 476 and Sayh al Uhaymir (SaU) 008 to their origin.
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Why is it important?
We observed that the two meteorites show different temperatures linked to their formation at different depths in the Martian mantle.
Perspectives
I think oxygen isotope thermometry is a good tool to estimate their formation temperatures even though the methodology is sensitive to small uncertainties in the oxygen isotope compositions. As laser fluorination technique provides relatively lower uncertainties in the data therefore it could be used to understand the thermal histories of the planets.
Dr Arshad Ali
Sultan Qaboos University
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This page is a summary of: Oxygen Isotope Thermometry of DaG 476 and SaU 008 Martian Meteorites: Implications for Their Origin, Geosciences, January 2018, MDPI AG,
DOI: 10.3390/geosciences8010015.
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