The petrogenesis of type B1 Ca-Al-rich inclusions: The spinel perspective
نویسندگان
چکیده
منابع مشابه
The petrogenesis of type B1 Ca-Al-rich inclusions: The spinel perspective
Minor element variations in MgAl2O4 spinel from the type B1 calcium-aluminum-rich inclusion (CAI) Allende TS-34 confirm earlier studies in showing correlations between the minor element chemistry of spinels with their location within the inclusion and with the chemistry of host silicate phases. These correlations result from a combination of crystallization of a liquid produced by re-melting ev...
متن کاملORIGIN OF TRACE ELEMENTS IN SPINEL FROM Ca-Al-RICH INCLUSIONS: CONSTRAINTS FROM NanoSIMS ANALYSES OF SPINEL AND ENCLOSING MELILITE
Introduction: Type B Ca-Al-rich Inclusions (CAIs) from Allende reflect a variety of processes including crys-tallization from a liquid and subsolidus diffusion, oxidation , sulfidization, and alteration of igneous phases [1]. Allende TS 34 has atypically large spinel grains making this CAI an attractive candidate for investigating the effects of different processes on this phase [2-5] and, ther...
متن کاملthe investigation of the relationship between type a and type b personalities and quality of translation
چکیده ندارد.
Mg and Si Isotope Fractionation within Three Type B Ca-al-rich Inclusions
Knight*, N. T. Kita, A. M. Davis, F. M. Richter and R. A. Mendybaev, Chicago Center for Cosmochemistry, Department of the Geophysical Sciences, The University of Chicago, Chicago, IL 60637, Department of Geology and Geophysics, University of Wisconsin, Madison, WI 53706, Enrico Fermi Institute, The University of Chicago, Chicago, IL 60637. Present address: Lawrence Livermore National Laboratory...
متن کاملAl-mg Dating of Ca-al-rich Inclusions in Acfer 094 Chondrite
Introduction: Acfer 094 is one of the most primitive chondrites, which appears to have escaped thermal metamorphism above 300°C [1] and can potentially provide important clues to primary, undisturbed by parent body processes, abundances of short-lived ra-dionuclides in its components. Krot et al. [2] have recently described mineralogy and petrography of the Al-rich chondrules and refractory inc...
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ژورنال
عنوان ژورنال: Meteoritics & Planetary Science
سال: 2003
ISSN: 1086-9379,1945-5100
DOI: 10.1111/j.1945-5100.2003.tb00260.x