最大的镍矿

编者:物理学者 来源:最有料 时间:2014-12-15 18:18 最签:最大 浏览:

镍是一种银白色金属,由于它具有良好的机械强度和延展性,难熔耐高温,并具有很高的化学稳定性,在空气中不氧化等特征,因此是一种十分重要的有色金属原料,被用来制造不锈钢

  镍是一种银白色金属,由于它具有良好的机械强度和延展性,难熔耐高温,并具有很高的化学稳定性,在空气中不氧化等特征,因此是一种十分重要的有色金属原料,被用来制造不锈钢、高镍合金钢和合金结构钢,广泛用于飞机、雷达、导弹、坦克、舰艇、宇宙飞船、原子反应堆等各种制造业中。 在加拿大安大略省东南部,休伦湖北侧,有一个矿业城市萨德伯里。它是目前世界上最大的镍矿区,其产量占世界镍总产量的80%左右。近年来,人们在萨德伯里镍矿体周围发现,这里有陨石坑所特有的冲击构造,冲击变质的矿物和散布在周围岩石中的冲击角硕岩。这就使人们相信:萨德伯里矿体可能是个陨石坑,曾经有一块巨大的富含铁、镍的陨石,击穿了萨德伯里的地壳,为地壳的基性岩浆得上升开辟了通道,而富含铁、镍的炽热的基性岩浆在上升过程中融合陨石本身丰富的铁镍金属后,经过改造、冷凝、形成了今日的巨大镍矿。Nickel is a silvery white metal, because of its good mechanical strength and ductility, high temperature refractory, and has the very high chemical stability,oxidation in the air does not feature, so it is a very important non-ferrous metal raw materials, has been used in the production of stainless steel, high nickel alloy steel and alloy structural steel, is widely used in aircraft, radar, missiles, tanks,ships, spacecraft, atomic reactors and other manufacturing industry. In the southeastern part of Ontario Province in Canada, the Huron Hubei side, there is a mining city of sudbury. It is currently the world's largest nickel mine area, its output accounts for about 80% of the total output of world nickel. In recent years,people found in the surrounding Sudbury nickel ore, there is shock structurepeculiar to the crater, shock metamorphic minerals and scattered in the surrounding rock of the impact angle Shuo rock. This made people believe that: the Sudbury ore bodies may be a crater, there was a huge rich in iron, nickelmeteorite, breakdown of the Sudbury crust, to open up channels rise to crustalmafic magma, and rich in iron, nickel hot mafic magma in the rising process in the fusion of iron nickel metal rich meteorites itself, after the transformation,condensation, today formed a huge nickel.

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