李华

• 1:中煤地质工程总公司

摘要(Abstract)：

伊拉希迪盆地位于皮尔巴拉和伊尔岗(Yilgarn)两个大型太古代克拉通之间,钻探验证该盆地内的航磁异常由磁铁矿体引起,在盆地中有前寒武纪条带状变质铁硅建造(BIF型铁矿)。铁矿主要赋存在伊拉希迪群的弗雷雷组中,该组地层是找矿的直接标志。该铁矿矿石矿物以磁铁矿为主,区域性的航磁异常是找矿的重要标志。矿体空间上受构造控制,呈北东向带状展布。伊拉希迪盆地内相关的航磁异常分布较广,具有寻找大型铁矿床的潜力。

关键词(KeyWords)： BIF型铁矿;航磁异常;弗雷雷组

Abstract:

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基金项目(Foundation): 国家国外矿产资源风险勘查专项基金支持,项目编号201120B04100126

作者(Author): 李华

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