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

Research areas:

• Intérieurs planétaires (2011 - 2016)

Year:

2009

Authors:

• Olivier Verhoeven
• P. Tarits
• Pierre Vacher
• A. Rivoldini
• T. Van Hoolst

Journal:

PLANETARY AND SPACE SCIENCE

Volume:

57

Number:

3

Pages:

296-305

Month:

March

ISSN:

0032-0633

BibTex:

@article{WOS:000264690400004, author = "Olivier Verhoeven and P. Tarits and Pierre Vacher and A. Rivoldini and T. Van Hoolst", abstract = "Among the terrestrial planets, Mercury{\&}#039;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{\&}#039;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. (C) 2008 Elsevier Ltd. All rights reserved.", doi = "10.1016/j.pss.2008.11.015", extra = "PICL", issn = "0032-0633", journal = "PLANETARY AND SPACE SCIENCE", month = "MAR", number = "3", pages = "296-305", title = "{C}omposition and formation of {M}ercury: {C}onstraints from future electrical conductivity measurements", volume = "57", year = "2009", }

Abstract:

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. (C) 2008 Elsevier Ltd. All rights reserved.