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首页> 外文会议>International Congress on Applied Mineralogy in the Minerals Industry >APPLICATION OF A FIELD EMISSION MINERAL LIBERATION ANALYSER TO THE IN-SITU STUDY OF PLATINUM-GROUP ELEMENT MINERALISATION IN THE MERENSKY REEF OF THE BUSHVELD COMPLEX, SOUTH AFRICA
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APPLICATION OF A FIELD EMISSION MINERAL LIBERATION ANALYSER TO THE IN-SITU STUDY OF PLATINUM-GROUP ELEMENT MINERALISATION IN THE MERENSKY REEF OF THE BUSHVELD COMPLEX, SOUTH AFRICA

机译：现场排放矿物质解放分析探对南非森林德复合体梅朗德礁石铂群矿化的原位研究

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Quantifying spatial relationships of minerals of the platinum-group elements (PGEs) in ores in situ is difficult, as petrologists are faced with issues of representative sampling, together with laborious and time-consuming microscopic examination. We present procedures followed, and the results of, platinum group mineral (PGM) searches, identification and size frequency distributions, as well as the quantification of host rock phases occurring in close association with the PGMs encountered, utilising an FEI 600F mineral liberation analyser (MLA). Samples of chromitite stringers in Merensky Reef from the Two Rivers and Marikana platinum mines examined for the present study contain a full suite of PGMs consisting mainly of ferroplatinum (PtFe), coopcrite (PtS), braggite (PtPdNiS), maslovite (PtTeBi) and laurite (RuS), as well as other Pt and Pd sulfides, arsenides, tellurides, bismuthides and alloys, which range in size from <4 micron to ~100 micron. Gold is present as electrum (AuAg) and also as a rare AuBiPdTe compound.
机译：由于岩化家庭面临代表性采样问题，量化铂金群元素（PGES）在矿石中矿物质的空间关系难以与代表性采样的问题相结合在一起，与费用和耗时的微观检查。我们呈现遵循程序，铂族群矿物（PGM）搜索，识别和尺寸频率分布的结果，以及遇到FEI 600F矿物解放分利分析仪的密切关联发生的宿主岩相的定量（ MLA）。从本研究中检查的两个河流和马里卡纳铂矿的Merensky珊瑚礁的样本含有一套全套PGM，主要由铁铂（PTFE），COOMCRITE（PTS），Braggite（PTTEBI），Maslovite（Pttebi）和Laurite组成（RUS）以及其他PT和Pd硫化物，砷化物，碲化物，铋和合金，其尺寸为<4微米至100微米。金作为electrum（auag）存在，也可以作为罕见的aubipdte化合物。

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