Composition and formation of Mercury: Constraints from future electrical conductivity measurements

Details Composition and formation of Mercury: Constraints from future electrical conductivity measurements Composition and formation of Mercury: Constraints from future electrical conductivity measurements

Mar 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009p%26ss...57..296v&link_type=abstract

Planetary and Space Science, Volume 57, Issue 3, p. 296-305.

Computer Science

Scientific paper

Among the terrestrial planets, Mercury's composition is characterized by two specific features: a high density and a low surface FeO content. Based on these two constraints, different geochemical models have been proposed, according to different formation scenarios. Here thermodynamical modeling is used to derive the mantle and crust mineralogy associated with these geochemical models. For each mineralogy, the electrical conductivity profile and associated electromagnetic data are computed. Due to the very different oxide/silicate ratios, most geochemical models proposed for Mercury's formation show very different electromagnetic signatures. As a result, future measurements with MESSENGER and BepiColombo missions will help differentiating between different interior models and different formation scenarios.

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