Enstatite Formation Reaction between Forsterite and Si-rich Gas in the Primitive Solar Nebula.
نویسندگان
چکیده
منابع مشابه
Si Isotope Homogeneity of the Solar Nebula
The presence or absence of variations in the mass-independent abundances of Si isotopes in bulk meteorites provides important clues concerning the evolution of the early solar system. No Si isotopic anomalies have been found within the level of analytical precision of 15 ppm in Si/Si across a wide range of inner solar system materials, including terrestrial basalts, chondrites, and achondrites....
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The atomic structures of magnesium silicate melts are key to understanding processes related to the evolution of the Earth's mantle and represent precursors to the formation of most igneous rocks. Magnesium silicate compositions also represent a major component of many glass ceramics, and depending on their composition can span the entire fragility range of glass formation. The silica rich enst...
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Introduction: Protolanetary accretion discs evolve in combination of physical and chemical processes, which finally resulted in diversity in planetary compositions. The evolution models for young discs have concerned density and thermal structure of steadily accretion discs (e.g. [1][2]), dynamics of discs including evaluation of α-viscosity (e.g., [3]), and material transport in 2-D models (e....
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Gas giant planets have been detected in orbit around an increasing number of nearby stars. Two theories have been advanced for the formation of such planets: core accretion and disk instability. Core accretion, the generally accepted mechanism, requires several million years or more to form a gas giant planet in a protoplanetary disk like the solar nebula. Disk instability, on the other hand, c...
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Everything that became part of the primitive solar nebula first passed through the interstellar medium and the dense molecular cloud from which the nebula collapsed. We begin with a brief discussion of the connection between dense molecular clouds and the formation of solar-type stars. We then review processes that occur in these environments in order to constrain the chemical and physical prop...
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ژورنال
عنوان ژورنال: Journal of the Mineralogical Society of Japan
سال: 1993
ISSN: 1883-7018,0454-1146
DOI: 10.2465/gkk1952.22.167