High Precision Magnesium Isotopic Measurements of Cai Evaporation Residues
نویسندگان
چکیده
Introduction. Type B Ca-Al-rich inclusions have textures that have been interpreted as indicative of reheating to temperatures of about 1400°C, sufficient to produce a high degree of partial melting, and subsequent cooling at rates of the order of degrees per hour [1]. They are often found to be enriched in the heavy isotopes of the moderately volatile elements silicon and magnesium, which also suggests a high temperature episode resulting in the partial evaporation of the more volatile components. This enrichment is typically interpreted as following the Rayleigh fractionation equation R/Ro=ƒ
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