First story takes us to the South American nation of Brazil where a tragedy at an iron mine has buried parts of a city in mud.
第一个故事将我们带到南美国家巴西，在那里，一场发生在铁矿上的悲剧将一座城市的部分地区掩埋在泥土中。
Iron mines
原声例句
CNN 10 学生英语 2019年1月合集
大商业时代
It owned its own coal-fields and iron mines and its own forests, and it produces most of the implements used by 10,000,000 farmers.
它拥有自己的煤田和铁矿以及自己的森林，它生产了 1000 万农民使用的大部分农具。
中文百科
铁矿 Iron ore
（重定向自Iron mines）
![Evolution of the extracted iron ore grade in different countries (Canada, China, Australia, Brazil, United States, Sweden, USSR-Russia, world). The recent drop in world ore grade is due to the big consumption of low grade Chinese ores. The American ore is upgraded between 61% to 64% before being sold.[6]](/uploads/202501/21/Evolution_minerai_fer.svg3516.png)
铁矿(英文Iron ore)为铁的原料，铁矿系指含铁矿物，可用于提炼单质生铁、炼钢（占98%）等诸多用途。常见铁矿都为铁氧化物，大多呈暗灰色、亮黄色、深紫色或铁锈色。
主要含铁矿物种类及其主要成分：
- 磁铁矿：Fe3O4
- 赤铁矿：Fe2O3
- 褐铁矿：FeO(OH)
- 钛铁矿：FeTiO3
- 菱铁矿：FeCO3
- 黄铁矿：FeS2
英语百科
Iron ore 铁矿
（重定向自Iron mines）
Iron ores are rocks and minerals from which metallic iron can be economically extracted. The ores are usually rich in iron oxides and vary in color from dark grey, bright yellow, deep purple, to rusty red. The iron itself is usually found in the form of magnetite (Fe
3O
4, 72.4% Fe), hematite (Fe
2O
3, 69.9% Fe), goethite (FeO(OH), 62.9% Fe), limonite (FeO(OH).n(H2O)) or siderite (FeCO3, 48.2% Fe).
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