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Understanding Mercury’s Magmatic History: Geochemical Affinity, Compatibility, & Volatility Changes Due to Reduction
- Publication Year :
- 2024
- Publisher :
- United States: NASA Center for Aerospace Information (CASI), 2024.
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Abstract
- Mercury’s depletion in O and abundance of S substituting in as S2- has fundamental effects on the physicochemical properties of minerals and melts because O2- is the dominant rock-forming anion. These changes exert a first order effect on planetary body evolution, including the initial distribution of elements, crystallization paths, stability of phases, and mineral chemistry. Experimental and empirical data have revealed that most nominally lithophile elements become more chalcophile and/or siderophile at reducing conditions, which can be visualized through a re-interpreted Goldschmidt classification table prepared for McCubbin & Anzures’s Treatises of Geochemistry 3rd edition chapter under review. Additionally, the S bonding environment influences Mercurian phase equilibria by decreasing the stability of forsterite and anorthite while increasing the stability of enstatite, silica, and albite through re-projection of silicate ternaries.
- Subjects :
- Nonmetallic Materials
Subjects
Details
- Language :
- English
- Database :
- NASA Technical Reports
- Notes :
- NNJ14ZKA001N, , NNJ13HA01C, , DE-AC02-06CH11357, , 811073
- Publication Type :
- Report
- Accession number :
- edsnas.20230017398
- Document Type :
- Report