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利希尔岛金矿最上部的高级泥化带:原岩为玄武岩,由于热液的持续活动,在地表形成白色多孔低密度岩石,包括不定形的硅+高岭土+明矾石,在岩石裂隙部位可见蒸汽涌出,说明深部仍存在热液活动,矿化可能仍在进行。利希尔岛金矿的高品位金矿石:矿石呈角砾状,深色角砾为玄武岩原岩,已经发生了强烈的硅化;在一般矿石中胶结物通常为硬石膏、方解石、冰长石等,但该类高品位矿石中胶结物的黄铁矿含量非常高,因此具有较高的金品位,最高可达20g/t,具有极高的经济价值。
The uppermost high-grade mud zone of the Lihir Island Gold Mine: the original rock is basaltic and white, porous, low-density rocks, including amorphous silicon, kaolin and alunite, are formed on the surface due to the continuous hydrothermal activity. Visible steam emission, indicating that deep hydrothermal activities still exist, mineralization may still be underway. The high-grade gold ore from the Lihir Island Gold Mine: the ore is brecciated and the dark breccia is basalt and has been strongly silicified. In general, the cements are generally anhydrite, calcite, and feldspar Etc. However, the content of pyrite in such high-grade ore is very high, so it has high gold grade, up to 20g / t, which has very high economic value.