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普通球粒陨石中富铝球粒的成因:离子探针氧同位素证据
蒋云; 徐伟彪; GUAN YunBin; 王英
2015
Source Publication中国科学:地球科学
Issue9Pages:1324-1334
Abstract富铝球粒(ARC)在岩矿学和同位素组成等方面兼具富钙富铝难熔包体(CAI)和镁铁质球粒的特征,可以揭示其成因及时空关系因而成为天体化学重要的研究对象之一.本文研究了3个普通球粒陨石(GRV 022410(H4),GRV 052722(H3.7)和Julesburg(L3.6))中发现的7个富铝球粒.详细的岩相学和矿物学研究表明,这些富铝球粒的全岩Al2O3含量为17%~33%,均显示火成结构,主要由橄榄石、高钙和低钙辉石、长石、尖晶石和玻璃组成.离子探针原位分析显示,富铝球粒组成相的氧同位素成分(δ18O=–6.1‰~7.1‰;δ17O=–4.5‰~5.1‰)与镁铁质球粒相近,远比CAI(δ1...
Language中文
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/14955
CollectionPMO中文期刊
Recommended Citation
GB/T 7714
蒋云,徐伟彪,GUAN YunBin,等. 普通球粒陨石中富铝球粒的成因:离子探针氧同位素证据[J]. 中国科学:地球科学,2015(9):1324-1334.
APA 蒋云,徐伟彪,GUAN YunBin,&王英.(2015).普通球粒陨石中富铝球粒的成因:离子探针氧同位素证据.中国科学:地球科学(9),1324-1334.
MLA 蒋云,et al."普通球粒陨石中富铝球粒的成因:离子探针氧同位素证据".中国科学:地球科学 .9(2015):1324-1334.
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