| 中国主要富铁矿床类型及地质特征 |
| Received:April 01, 2013 Revised:April 28, 2013 点此下载全文 |
| 引用本文：ZHAO YiMing.2013.Main genetic types and geological characteristics of iron-rich ore deposits in China[J].Mineral Deposits,32(4):685~704 |
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| 基金项目:本文得到中国地质调查局地质调查项目(编号:1212011085528)的资助 |
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| 中文摘要:中国铁矿总资源量相对较多,但大部分为贫矿,富铁矿的资源量很少,只占已探明铁矿总资源储量的4.6%;其中,可直接入炉的炼钢用富矿和炼铁用富矿则更少,仅11.8亿吨,占全国探明铁矿总资源储量的2.27%。已知主要富铁矿矿床的成因类型有: ① 沉积变质贫铁矿(BIF)中的热液改造型; ② 沉积变质贫铁矿(BIF)中的风化淋滤型; ③ 陆相火山_侵入岩型; ④ 海相火山(_侵入)岩型; ⑤ 矽卡岩型; ⑥ 热液充填交代型。文章简要介绍了各类富铁矿矿床的地质特征,认为矽卡岩型和海相火山(_侵入)岩型富铁矿有一定的找矿潜力。 |
| 中文关键词:地质学 富铁矿 成因类型 地质特征 找矿潜力 中国 |
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| Main genetic types and geological characteristics of iron-rich ore deposits in China |
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| Abstract:The proven total reserves of iron ores in China are relatively abundant, but the iron ores mainly belong to low-grade ores. The reserves of high-grade iron ores are rare, and only possess 4.6% of the total proven reserves of iron ores. Among them, the high-grade ores for steelmaking and for iron-smelting are even rarer, and only amount to 1180 million tones, which make up 2.27% of the proven reserves of iron ores in China. The main genetic types of iron deposits of high-grade ores in China include; ① hydrothermal reformed type in sedimentary metamorphosed iron deposits (BIF); ② weathered leaching type in sedimentary metamorphosed iron deposits (BIF); ③ iron deposits related to continental volcano-intrusive activities; ④ iron deposits related to marine volcanic (intrusive) activities; ⑤ skarn iron deposits; ⑥ hydrothermal iron deposits. Among these iron deposit types of high-grade iron ores, the skarn iron deposits and iron deposits related to marine volcanic (intrusive) activities are relatively important and have favorable ore-prospecting potential. |
| keywords:geology iron deposits of high-grade ores genetic type geologic characteristics ore-searching potential China |
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