• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Iron ore 2011 >Realising the Potential of the Boolgeeda Iron Formation – Stratigraphy and Iron Mineralisation at McCamey's North, Hamersley Province, Western Australia
【24h】

Realising the Potential of the Boolgeeda Iron Formation – Stratigraphy and Iron Mineralisation at McCamey's North, Hamersley Province, Western Australia

机译：发挥Boolgeeda铁层的潜力-西澳大利亚州Hamersley省McCamey北部的地层和铁矿化

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Atlas Iron Limited's McCamey's North project lies at the eastern end of the Hamersley Basin,rnapproximately 50 km east of Newman, Western Australia, and 3 km northeast of BHP Billiton'srnJimblebar Mine. The presence of signifi cant surface iron mineralisation identifi ed during fi eldrnreconnaissance, has subsequently been further defi ned by detailed mapping and RC drilling.rnThe project area is dominated by outcrops of moderate to steeply north and south dippingrnbanded iron formation, cherts and shales of the Boolgeeda Iron Formation overlying rhyolites andrnrhyodacites of the Woongarra Volcanics. In lower lying areas recent colluvium and alluvium maskrnthe Archaean geology. Drilling and downhole geophysics has allowed a composite stratigraphicrnsection to be compiled through almost the entire Boolgeeda Iron Formation.rnSurface orientations and subsurface stratigraphic correlations using natural gamma logs indicaternlarge scale open folding about east-west trending fold axes across the project area; while smallrnscale tight to isoclinal folding with similar fold axis orientations are visible at the outcrop scale.rnThese folds are cut by a number of moderate to steeply south-dipping normal faults defi ning arnseries of north-dipping fault blocks which repeat the stratigraphy across the project area.rnBedded iron mineralisation consists mainly of haematite-martite and goethite ores with bestrnresults of 78 m @ 60.5 per cent Fe. Vitreous goethite is observed at the surface of the mineralisedrnhorizons. The mineralisation exhibits a strong stratigraphic control and extend down-dip up torn120 m below surface. The strike extent of the mineralisation is still to be determined. An inferredrnresource of 39 Mt at 58 per cent Fe has been defi ned to date (ASX: AGO 3 February 2011).rnThe fi ndings at McCamey's North indicate that there is potential for economic iron mineralisationrnto exist in other areas of Boolgeeda Iron Formation within the Hamersley Basin.
机译：Atlas Iron Limited的McCamey's North项目位于Hamersley盆地的东端，位于西澳大利亚州纽曼以东约50公里处，位于必和必拓的rnJimblebar矿区东北3公里处。在现场勘查中确定存在明显的表面铁矿化作用，随后通过详细的制图和RC钻探进一步确定。旺加拉火山的流纹岩和菱锰矿之上的布尔吉达铁矿。在较低的地区，最近的冲积层和冲积层掩盖了古生的地质。钻探和井下地球物理学已使几乎整个Boolgeeda铁矿层都可以编制出一个复合地层剖面。当在露头尺度上可以看到小规模的紧密到等腰向的折迭，且折迭轴方向相似时。这些折痕被一些中等到陡峭的南倾正常断层切割，定义了北倾断块的一系列序列，在整个项目中重复了地层。床状铁矿化主要由赤铁矿-马铁矿和针铁矿组成，铁的最佳结果为78 m @ 60.5％。在矿化水准晶的表面观察到玻璃质针铁矿。矿化作用表现出很强的地层控制能力，向下倾角延伸至地表以下120 m。矿化的走向程度尚待确定。迄今为止，已确定推断出铁含量为58％的39 Mt的资源（澳大利亚证券交易所：AGO，2011年2月3日）。哈默斯利盆地。

著录项

  • 来源
    《Iron ore 2011》|2011年|p.103-108|共6页
  • 会议地点 Perth(AU)
  • 作者

    P J Howard; P Darvall;

  • 作者单位

    Atlas Iron Limited, Level 9, Alluvion, 58 Mounts Bay Road, Perth WA 6000. Email: Paul.Howard@atlasiron.com.au;

    Atlas Iron Limited, Level 9, Alluvion, 58 Mounts Bay Road, Perth WA 6000. Email: Pip.Darvall@atlasiron.com.au;

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

相似文献

  • 外文文献
  • 中文文献
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号