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首页> 外文会议>Application and sustainability of technologies >A Method to Quantify Wall Rock Mineralogy in an Active OpenPit Mine, and its Application Toward Pit Lake Prediction, Waihi,New Zealand
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A Method to Quantify Wall Rock Mineralogy in an Active OpenPit Mine, and its Application Toward Pit Lake Prediction, Waihi,New Zealand

机译：一种定量的露天露天矿中围岩矿物学的定量方法及其在矿井湖预测中的应用，新西兰怀希

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摘要

Subaqueous water-rock reactions that occur at the pit wall/lake waterrninterface can affect the pH of pit lakes. Many pit lake water chemistryrnmodels neglect subaqueous reactions, which may create inaccuraternpredictions over time. A mineral quantification method is presented thatrndefines the wall rock mineralogy of active open pit mines, using samplesrncollected from the Martha Mine, a low-sulfidation epithermal Au-Agrndeposit in Waihi, New Zealand. The mineral quantification method hasrnfive components:rn1. Field observations and sampling,rn2. X-ray diffraction analyses,rn3. Selection of representative samples,rn4. Geochemical analyses, andrn5. Mineral accounting.rnPredicted mineral concentrations closely match observed mineralrnconcentrations visually estimated using petrographic techniques. Resultsrnof the method can be incorporated into a geochemical model ofrnlong-range pit lake water quality resulting from subaqueous water-rockrnreactions.
机译：坑壁/湖水界面发生的水下水岩石反应会影响坑湖的pH。许多坑湖水化学模型忽略了水下反应，随着时间的推移可能会产生不准确的预测。提出了一种矿物定量方法，该方法使用从位于新西兰怀希的低硫化超热金-银矿床玛莎矿场收集的样品来定义活跃露天矿的围岩矿物学。矿物定量法有五个组成部分：rn1。实地观察和取样，rn2。 X射线衍射分析，rn3。代表性样品的选择，rn4。地球化学分析；和rn5。矿产核算。预测的矿物质浓度与使用岩相学技术目测估计的观察到的矿物质浓度非常匹配。结果：该方法可纳入水下水岩反应产生的长距离坑湖水质地球化学模型。

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  • 来源
  • 会议地点 Cairns(AU)
  • 作者

    D Castendyk; J L Mauk; K Brodie; M Simpson;

  • 作者单位

    School of Geography and Environmental Sciences, The Universityrnof Auckland, Tamaki Campus, Private Bag 92019, Auckland, NewrnZealand;

    Geology Department, The University of Auckland, Private Bagrn92019, Auckland, New Zealand;

    Newmont Waihi Operations, PO Box 190, Waihi, New Zealand;

    Geology Department, The University of Auckland, Private Bagrn92019, Auckland, New Zealand.;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 矿业工程;
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