首页   按字顺浏览 期刊浏览 卷期浏览 THE CLOVIS (no. 1), NEW MEXICO, METEORITE AND Ca, Al AND Ti‐RICH INCLUSIONS IN ORDINARY...
THE CLOVIS (no. 1), NEW MEXICO, METEORITE AND Ca, Al AND Ti‐RICH INCLUSIONS IN ORDINARY CHONDRITES

 

作者: Albert F. Noonan,  

 

期刊: Meteoritics  (WILEY Available online 1975)
卷期: Volume 10, issue 1  

页码: 51-59

 

ISSN:0026-1114

 

年代: 1975

 

DOI:10.1111/j.1945-5100.1975.tb00007.x

 

出版商: Blackwell Publishing Ltd

 

数据来源: WILEY

 

摘要:

Microprobe analyses of the major silicates in Clovis (no. 1), New Mexico, establish it as an H3 chondrite. Inclusions identified in Clovis are: breccia fragments; angular and vesicular chondrule or rock fragments composed almost entirely of glass and olivine (Fa12–22);chondrules, composed principally of pyroxene (Fs2–33) and olivine (Fa1–28); and Ca, Al and Ti‐rich inclusions. These refractory enriched inclusions, similar in composition to those found in some carbonaceous chondrites, are rare in ordinary chondrites but in this study were observed in Sharps, Virginia (H3), Gobabeb, South Africa (H4), Dimmitt, Texas (H4), Weston, Connecticut (H4–6) and Clovis. Sodium, known to rim similar inclusions in carbonaceous chondrites, also occurs in the interiors of inclusions observed in this study, sometimes in moderate amounts. The Na distribution is regarded as primary and is not attributable, at least in total, to secondary Na extraction from the ho

 

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