| 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 |
| |
| 引用本文： | 侯渭,谢鸿森,周文戈,刘永刚.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[J].地质科技情报,2002,21(3):18-23. |
| |
| 作者姓名： | 侯渭 谢鸿森 周文戈 刘永刚 |
| |
| 作者单位： | 中国科学院地球化学研究所,贵州,贵阳,550002 |
| |
| 基金项目： | 国家自然科学重点基金资助项目 (10 0 3 2 0 40 ) |
| |
| 摘 要： | 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： | 同位素 陨石 惰性气体 前太阳颗粒 金刚石 碳化硅 石墨 |
| 文章编号： | 1000-7849(2002)03-0018-06 |
| 修稿时间： | 2001年8月3日 |
DEVELOPMENT OF STUDIES ON PRE-SOLAR GRAINS IN METEORITES AND ITS CARRYING PRIMORDIAL ISOTOPIC ANOMALY OF NOBLE GAS |
| |
| HOU Wei,XIE Hong sen,ZHOU Wen ge,LIU Yong gang.DEVELOPMENT OF STUDIES ON PRE-SOLAR GRAINS IN METEORITES AND ITS CARRYING PRIMORDIAL ISOTOPIC ANOMALY OF NOBLE GAS[J].Geological Science and Technology Information,2002,21(3):18-23. |
| |
| Authors: | HOU Wei XIE Hong sen ZHOU Wen ge LIU Yong gang |
| |
| Abstract: | The diamond,SiC and graphite grains with isotopic anomaly of noble gas are separated from original residue of chondrites.However these isotopic anomalies of noble gas can not be interpreted by the process of solar system,and they are attributed to a mixed type of many nuclear synthesized materials outside of the solar system.Accordingly,this type of anomaly is called primordial isotopic anomaly of noble gas,carried by diamond,SiC and graphite grains which are called pre solar grains.Hence,the authors of this paper introduce the separation of the pre solar grains from chondrites,grain sizes of diamond,SiC and graphite grains,their position in the chondrites,isotopic composition of the noble gases carried by the pre solar grains and the origin of these gases and pre solar grains.Also the authors give a brief discussion of their scientific significance. |
| |
| Keywords: | meteorite noble gas pre solar grain |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
