| 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。 |