陨石中前太阳颗粒及其所携带惰性气体的原始同位素异常研究进展DEVELOPMENT OF STUDIES ON PRE-SOLAR GRAINS IN METEORITES AND ITS CARRYING PRIMORDIAL ISOTOPIC ANOMALY OF NOBLE GAS
侯渭,谢鸿森,周文戈,刘永刚
摘要(Abstract)：
从球粒陨石的酸不溶残渣中分离出了携带有惰性气体同位素异常的金刚石、碳化硅和石墨颗粒。这些同位素异常用太阳系内部过程是无法解释的 ,它们被归因于太阳系外多种核合成组分的不完全混合 ,称为原始惰性气体同位素异常 ,这三种矿物颗粒被称为前太阳颗粒。介绍了这三种前太阳颗粒的分离过程、存在部位、粒度大小、所携带惰性气体组分的同位素组成 ,以及这些惰性气体和携带物的成因 ,并对它们的科学意义进行了简要的讨论
关键词(KeyWords)： 陨石;惰性气体;前太阳颗粒
基金项目(Foundation): 国家自然科学重点基金资助项目 (10 0 3 2 0 40 )
作者(Author): 侯渭,谢鸿森,周文戈,刘永刚
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