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

被引：14

作者：

Verhoeven, O. ^{[1
]}

Tarits, P. ^{[2
]}

Vacher, P. ^{[3
]}

Rivoldini, A. ^{[1
]}

Van Hoolst, T. ^{[1
]}

机构：

[1] Observ Royal Belgique, B-1180 Brussels, Belgium

[2] IUEM, UMR 6538, Plouzane, France

[3] Univ Nantes, CNRS, Lab Planetol & Geodynam,UMR 6112, UFR Sci & Tech, F-44322 Nantes 03, France

来源：

PLANETARY AND SPACE SCIENCE | 2009年 / 57卷 / 03期

关键词：

Mercury; Electrical conductivity; Electromagnetic induction; Composition; Mineralogy; Formation; INTERIOR STRUCTURE; EVOLUTION; MANTLE; CONSTITUTION; TEMPERATURE; COMPUTATION; INDUCTION; VOLCANISM; MESSENGER; OLIVINE;

D O I：

10.1016/j.pss.2008.11.015

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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.

引用

页码：296 / 305

页数：10

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