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Geochemical Characterisation of Flinders Mines' Pilbara Iron Mineralisation

机译：弗林德斯矿的皮尔巴拉铁矿化的地球化学特征

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摘要

Flinders Mines is an ASX300 iron ore explorer and developer with a tenement package locatedrnin the Hamersley Ranges region of Western Australia, approximately 70 km north of Tom Price.rnExploration over the past three years has identifi ed a Global Resource in excess of 740 Mt at arngrade of 55.4 per cent Fe (+50 per cent Fe cut-off). This resource is spread across multiple depositsrnand has been divided into a number of mineralisation type domains based on geometallurgicalrnand geochemical boundaries. These domains are comprised of transported haematite rich detritalrniron deposits (DID) and goethite dominant Channel iron deposits (CID) as well as in situ beddedrnBrockman iron deposits (BID). On the basis of differences in physical and chemical characteristics,rnthe DID have been divided into four discrete units. The four DID units form a stratigraphicrnsequence with the iron grade increasing and the contaminant concentrations decreasing withrndepth. The upper DID unit is lower grade and currently unlikely to provide a marketable product,rnwithout signifi cant benefi ciation. The lower three DID units, together with the CID and BID, are ofrna higher quality and have the potential to yield marketable ore. The ability to defi ne and recognisernthese different units has resulted in a more reliable and robust geological interpretation andrnhence greater confi dence in the resulting resource model. This has been evident in the excellentrnconversion of inferred to indicated resources.
机译：Flinders Mines是一台ASX300铁矿石勘探商和开发商，在西澳大利亚州哈默斯利山脉地区（位于Tom Price以北约70公里处）设有矿权证。过去三年来，勘探工作已在arngrade识别出超过740 Mt的全球资源55.4％的铁（截止品位+ 50％的铁）。该资源分布在多个矿床中，并根据地球冶金学和地球化学边界划分为多个矿化类型域。这些区域包括运输的富含赤铁矿的碎屑铁矿床（DID）和针铁矿为主的槽铁矿床（CID）以及原地层状的布罗克曼铁矿床（BID）。根据理化特性的差异，将DID分为四个离散单元。四个DID单元随着铁级的增加和污染物浓度的降低而形成地层序列。 DID的上级单位较低，目前无法提供可销售的产品，没有明显的好处。较低的三个DID单元以及CID和BID具有更高的质量，并有可能产生可销售的矿石。定义和识别这些不同单元的能力已导致更可靠，更可靠的地质解释，并在结果资源模型中获得更大的信心。这在推断资源到指定资源的出色转换中很明显。

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  • 来源
    《Iron ore 2011》|2011年|p.307-313|共7页
  • 会议地点 Perth(AU)
  • 作者

    G D McDonald;

  • 作者单位

    Flinders Mines Ltd, PO Box 3126, Norwood SA 5067. Email: gmcdonald@fl indersmines.com;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 铁矿石;
  • 关键词

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