Genesis of enstatite meteorite minerals

Details Genesis of enstatite meteorite minerals Genesis of enstatite meteorite minerals

Sep 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986geokh.....1219p&link_type=abstract

Geokhimiia (ISSN 0016-7525), Sept. 1986, p. 1219-1232. In Russian.

Other

Enstatite, Meteoritic Composition, Minerals, Solar Corona, Condensation, Cosmochemistry, Inorganic Sulfides, Titanium Nitrides, Vapor Phases

Scientific paper

The role of the physicochemical processes, the condensation of the gaseous phase of the solar nebula and thermal metamorphism in the parent bodies' interiors, in the evolution of the chemical and mineral composition of enstatite minerals is examined, using thermodynamic data for a number of sulfides and nitrides encountered in enstatite meteorites to analyze their stability in these two processes. It is shown that enstatite, silicon-bearing kamacite, troilite, niningerite, oldhamite, and osbornite can be formed in the condensation of the gaseous phase of the solar nebula having C/O ratio equal to 1. On the other hand, sinoite, daubreelite, and heideite could not be formed in the condensation process and thus must be considered to be postcondensational (possibly metamorphic) minerals.

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