石英角斑岩
- 网络quartz keratophyre;quartz-keratophyre;spilite quartz keratophyre
![石英角斑岩](../cache/1196884.jpg)
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细碧&角斑岩系一般分为细碧岩、斑岩和石英角斑岩三类。
Spilite-keratophyre sequence is generally divided into spilite , keratophyre and quartz keratophyre .
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该火山岩系底部超镁铁岩的REE分布模式为轻稀土富集型,有小的Eu正异常;细碧岩-石英角斑岩也是轻稀土强富集型,Ce和Eu有轻微的正异常;
REE patterns of spilites , keratophyres and ultramafic rocks under the volcanic rocks show strong enrichment in LREE with unobvious Ce and Eu positive anomalies .
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对细碧-石英角斑岩系种属划分和命名的建议
Suggestion on the classification of spilite keratophyre and their nomenclature
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白银地区细碧石英角斑岩地球化学特征&兼谈白银板块构造环境
The Geochemical Features of Spilite-keratophyre in Baiyin Area and the Plate Tectonic Setting
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并证实其原岩是与本区未变质的火山岩类相同的一套细碧-石英角斑岩系。
We con-firm that the original rocks are identical with the volcanic rocks in this area .