干旱区生态环境知识资源中心(Arid): Petrography, geochemistry and classification of ten new iron meteorites from Northwest Africa and Chile

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DOI	10.2451/2020PM855
	Petrography, geochemistry and classification of ten new iron meteorites from Northwest Africa and Chile
	D'; Orazio, Massimo
通讯作者	D&#39 ; Orazio, Massimo
来源期刊	PERIODICO DI MINERALOGIA
ISSN	0369-8963
出版年	2020
卷号	89 期号:1 页码:3-18
英文摘要	I present detailed petrographic descriptions and major- and trace-element data on a set of ten new iron meteorites (irons) from Nortwest Africa and the Atacama Desert (Chile). Part of these data were used to classify the meteorites upon their submission to the Nomenclature Committee of the Meteoritical Society for official approval. The studied irons belong to the following groups: IAB-complex (2 meteorites), IC (1), IIAB (1), IIE (1), IIIAB (1), IVA (1). Three irons do not fall in any compositional group and, therefore, are classified as ungrouped iron meteorites. Based on their structure, the ten irons were subdivided into plessitic octahedrites (1 meteorite), fine octahedrites (2), medium octahedrites (1), coarse octahedrites (1), ataxites (1) and in iron with anomalous structure (4). The distribution of the studied irons among the chemical groups is consistent with what has already been observed by other authors, that is, irons from northern Africa and Antarctica have a high frequency of ungrouped irons and of members of the IAB-complex with respect to irons from other parts of the world. This biased distribution is discussed in relation to the smaller median size of irons from northern Africa and Antarctica in comparison with meteorites from other parts of the world.
英文关键词	iron meteorite asteroid siderophile elements geochemistry classification
类型	Article
语种	英语
国家	Italy
收录类别	SCI-E
WOS记录号	WOS:000527818300001
WOS关键词	SEGREGATION ; COMPLEX ; MELT
WOS类目	Geochemistry & Geophysics ; Mineralogy
WOS研究方向	Geochemistry & Geophysics ; Mineralogy
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/315302
作者单位	Univ Pisa, Dept Earth Sci, Via S Maria 53, I-56126 Pisa, Italy
推荐引用方式 GB/T 7714	D',Orazio, Massimo. Petrography, geochemistry and classification of ten new iron meteorites from Northwest Africa and Chile[J],2020,89(1):3-18.
APA	D',&Orazio, Massimo.(2020).Petrography, geochemistry and classification of ten new iron meteorites from Northwest Africa and Chile.PERIODICO DI MINERALOGIA,89(1),3-18.
MLA	D',et al."Petrography, geochemistry and classification of ten new iron meteorites from Northwest Africa and Chile".PERIODICO DI MINERALOGIA 89.1(2020):3-18.