石英角斑岩

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 .

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 .

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

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

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 .