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pegmatite是什么意思

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pegmatite 是什么意思

中文翻译与英英解释

n.
【矿物】伟晶岩。
a form of igneous rock consisting of extremely coarse granite resulting from the crystallization of magma rich in rare elements

例句与用法

1.Pegmatites seem to form during a late magmatic stage .
伟晶岩似乎是在较晚的岩浆阶段形成的。

2.At pegmatite contacts the composition changes to chalcopyrite, millerite, pyrite, and violarite accompanied by magnetite and hematite .
在伟晶岩接触带,硫化物成分变为黄铜矿、针镍矿、黄铁矿及硫镍铁矿,伴生有磁铁矿和赤铁矿。

3.Corundum oligoclase pegmatite
刚玉奥长伟晶岩

4.Epidote oligoclase pegmatite
绿帘奥长伟晶岩

5.Epidote orthoclase pegmatite
绿帘正长伟晶岩

6.Elaeolite - syenite - pegmatite
脂光正长伟晶岩

7.Epidote albite pegmatite
绿帘钠长伟晶岩

8.The pegmatite nb - ta mineral veins were controlled by a group of horizontal tenso - shear axial - direction fault - fissure systems in the nne direction folding structures
铌钽伟晶岩矿脉受控于nne向褶皱构造的一组近水平张扭性轴向裂隙系。

9.Quartz core zones : mineralisation occurs in enclaves of albitisation around the core of the pegmatite . tantalite crystals are large and randomly distributed
石英核心带:矿化作用存在于被纳长石矿包围的伟晶岩核心。钽铁矿呈现巨大而不规则分布。

10.You can see a vein , like 人 the chinese character , of pegmatite formed about 2 . 6billion years ago intruding in the granodiorites mass formed about 2 . 7billion years ago
26亿年前后形成的伟晶岩侵入到27亿年前后形成的花岗闪长岩中,形成“人”字形脉体。

 
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