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最近证明铁质石英岩在全球都有发现,说明铁质石英岩是一种矿石建造,出现在晚太古—早元古(28—16亿年)。最大的铁质石英岩产于约20亿年前。如克里沃罗格、库尔斯克磁异常、印度、巴西、西澳、北美的主要铁矿区。元古宙铁质石英岩沉积在火山沉积岩中的古老的海盆地中,有四种岩相—氧化物相、碳酸岩相、硅酸盐相及硫化物相,这四个岩相带随距早期存在的海岸线的远近而成规律的顺序改变。铁矿石的主要部分是氧
It has been recently demonstrated that iron-bearing quartzite is found all over the world, indicating that the iron-bearing quartzite is a type of ore found in Late Archean-Early Proterozoic (2.8-16 billion years). The largest iron-bearing quartzite was produced about 2 billion years ago. Such as Kryvyi Rogge, Kursk magnetic anomalies, major iron ore mines in India, Brazil, Western Australia and North America. Proterozoic iron-bearing quartzite deposits in volcanic sedimentary rocks in the ancient sea basin, there are four lithofacies - oxide phase, carbonate facies, silicate facies and sulfide phase, the four lithofacies with the distance The order in which the early coastlines ran in order changed. The main part of iron ore is oxygen