黑云辉长岩的英文怎么说

黑云辉长岩的英文：

biotite gabbro

biotite是什么意思：

n. 黑云母

• So the dark mica in this granite should be called biotite.

  那么．在这块花岗岩中的黑色云母类矿物就应当叫做黑云母了。

• biotite is a subordinate constituent of the mafic and ultramafic rocks generally

  黑云母一般是镁铁质及超镁铁质岩石中的次要成分。

• The banded gneisses underlying the mine field are, as a rule, micaceous, the amount of biotite determining mainly the shades of the bands

  本矿区的带状片麻岩照例富含云母，黑云母的多少决定片麻岩条带的色调。

gabbro是什么意思：

n. [矿]辉长岩

• The micro-gabbro phase is identical with the typical Bulawayan dolerite sills

  微辉长岩相与标准的布拉瓦约粒玄岩床相同。

• Even foliated metamorphic rocks and banded gabbro can be curved to form folds.

  即使变质岩中的片理以及辉长岩中的条带也可产生弯曲而形成褶皱。