CONTENTS – T through V Distribution of FeO/(FeO+MgO) in Semarkona Chondrules: Implications for Chondrule Formation and Nebular Evolution
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INFLUENCE OF FeO ON THE PARTITIONING OF NA BETWEEN OLIVINE AND SILICATE MELT – IMPLICATIONS FOR THE BEHAVIOR OF ALKALIS DURING CHONDRULE FORMATION
Introduction: It has been proposed that chondrules behaved as chemically closed system with respect to Na [1-5]. This implies that Na did not evaporate from the chondrule melt after onset of olivine crystallization. High temperatures, low pressure and low fO 2 during chondrule formation, however, should lead to rapid loss (minutes) of Na [e.g., 6]. This is not observed. Understanding the relati...
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