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首页> 外文期刊>Geochemistry: exploration, environment, analysis >Recent advances in the application of mineral chemistry to exploration for porphyry copper-gold-molybdenum deposits: detecting the geochemical fingerprints and footprints of hypogene mineralization and alteration
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Recent advances in the application of mineral chemistry to exploration for porphyry copper-gold-molybdenum deposits: detecting the geochemical fingerprints and footprints of hypogene mineralization and alteration

机译：矿物化学应用于卟啉铜金 - 钼矿床探索的最新进展：检测地球化学指纹和耐氧代矿化的足迹及改造

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摘要

In the past decade, significant research efforts have been devoted to mineral chemistry studies to assist porphyry exploration. These activities can be divided into two major fields of research: (1) porphyry indicator minerals (PIMs), which are used to identify the presence of, or potential for, porphyry-style mineralization based on the chemistry of magmatic minerals such as zircon, plagioclase and apatite, or resistate hydrothermal minerals such as magnetite; and (2) porphyry vectoring and fertility tools (PVFTs), which use the chemical compositions of hydrothermal minerals such as epidote, chlorite and alunite to predict the likely direction and distance to mineralized centres, and the potential metal endowment of a mineral district. This new generation of exploration tools has been enabled by advances in and increased access to laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS), short-wave length infrared (SWIR), visible near-infrared (VNIR) and hyperspectral technologies. PIMs and PVFTs show considerable promise for exploration and are starting to be applied to the diversity of environments that host porphyry and epithermal deposits globally. Industry has consistently supported development of these tools, and in the case of PVFTs encouraged by several successful blind tests where deposit centres have successfully been predicted from distal propylitic settings. Industry adoption is steadily increasing but is restrained by a lack of the necessary analytical equipment and expertise in commercial laboratories, and also by the ongoing reliance on well-established geochemical exploration techniques (e.g. sediment, soil and rock chip sampling) that have aided the discovery of near-surface resources over many decades, but are now proving less effective in the search for deeply buried mineral resources and for those concealed under cover.
机译：在过去的十年中，矿物化学研究致力于协助斑岩勘探的重大研究努力。这些活动可分为两个主要的研究领域：（1）斑岩指标矿物（PIM），用于基于岩浆矿物质的化学识别斑纹的矿物化的存在或潜力， Plagioclase和磷灰石，或抵抗磁铁矿等水热矿物质; （2）斑岩载体和生育工具（PVFT），它使用热热矿物的化学成分，如食物，氯酸盐和三农，以预测矿化中心的可能方向和距离，以及矿物区的潜在金属禀赋。这种新一代的勘探工具已经通过进入和增加的激光烧蚀电感耦合等离子体质谱（La-ICP-MS），短波长度红外（SWIR），可见的近红外（VNIR）和高光谱技术的进步而实现了新一代的勘探工具。 PIMS和PVFTS表现出可观的勘探承诺，并开始应用于全球斑岩和卵形存款的环境的多样性。业内人士一贯支持这些工具的发展，并且在若干成功盲目测试中鼓励的PVFT的情况下，在远端突出数据上成功预测存款中心的若干成功盲目测试。行业采用稳步增加，但受到商业实验室缺乏必要的分析设备和专业知识，以及持续依赖于既有发现的良好地球化学勘探技术（如沉积物，土壤和岩石芯片采样）。几十年来，近地表资源，但现在证明在寻求深层埋藏的矿产资源以及隐藏在封面下的人的情况下不太有效。

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  • 作者

    Cooke David R.; Agnew Paul; Hollings Pete; Baker Michael; Chang Zhaoshan; Wilkinson Jamie J.; Ahmed Ayesha; White Noel C.; Zhang Lejun; Thompson Jennifer; Gemmell J. Bruce; Danyushevsky Leonid; Chen Huayong;

  • 作者单位

    Univ Tasmania ARC Res Hub Transforming Min Value Chain Private Bag 79 Hobart Tas 7001 Australia;

    Rio Tinto Explorat Res Ave Bundoora Vic 3083 Australia;

    Lakehead Univ Geol Dept 955 Oliver Rd Thunder Bay ON P7B 5E1 Canada;

    Univ Tasmania ARC Res Hub Transforming Min Value Chain Private Bag 79 Hobart Tas 7001 Australia;

    Colorado Sch Mines Golden CO 80401 USA;

    Nat Hist Museum LODE Dept Earth Sci London SW7 5BD England;

    Univ Tasmania ARC Res Hub Transforming Min Value Chain Private Bag 79 Hobart Tas 7001 Australia;

    Univ Tasmania Ctr Ore Deposit &

    Earth Sci CODES Private Bag 79 Hobart Tas 7001 Australia;

    Univ Tasmania ARC Res Hub Transforming Min Value Chain Private Bag 79 Hobart Tas 7001 Australia;

    Univ Tasmania ARC Res Hub Transforming Min Value Chain Private Bag 79 Hobart Tas 7001 Australia;

    Univ Tasmania ARC Res Hub Transforming Min Value Chain Private Bag 79 Hobart Tas 7001 Australia;

    Univ Tasmania ARC Res Hub Transforming Min Value Chain Private Bag 79 Hobart Tas 7001 Australia;

    Chinese Acad Sci Guangzhou Inst Geochem 511 Kehua St POB 1131 Guangzhou 510640 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 地球化学;
  • 关键词

    porphyry; copper; exploration; epidote; chlorite; zircon; alunite;

    机译：斑岩;铜;探索;酸盐;氯酸盐;锆石;三农;

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