摘要
吉林省南部元古宙宇宙尘的某些特征及其意义徐光荣梁宜林张林（长春工业高等专科学校，长春１３００２１）林文蔚陈克樵梁细荣王安平（中国地质科学院矿床地质研究所，北京１０００３７）（长春科技大学，长春１３００２６）关键词宇宙尘高铬特征共轭性吉林作者在吉林省南...
magnetic spherules in Proterozic quartzite in south Jilin Province of China were obtained. The characteristics of these spherules are similar to those of fusion type of cosmic dusts in shape, surface features, general physical property, microstructure and chemical composition. They were divided into two types and four subtypes:(1)metal spherules,including iron spherules and Cr Fe alloy spherules;(2)oxide spherules,including Si Fe oxide spherules and Cr Fe oxide spherules. The chemical compositions of iron spherules and Si Fe oxide spherules are similar to those of iron cosmic dusts and iron meteorites, but Cr Fe alloy spherules and Cr Fe oxide spherules have different chemical composition, averagely containing Cr 18.76% and Cr 2O 3 13.31% .
出处
《矿物岩石地球化学通报》
CAS
CSCD
1997年第4期10-13,共4页
Bulletin of Mineralogy, Petrology and Geochemistry
关键词
宇宙尘
高铬
特征共轭性
吉林
cosmic dusts
high chromium
conjugation of characteristics
Jilin Province
