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首页> 外文期刊>Geochemistry: Exploration, Environment, Analysis >The role of surface geochemistry in the discovery of the Babel and Nebo magmatic nickel-copper-PGE deposits
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The role of surface geochemistry in the discovery of the Babel and Nebo magmatic nickel-copper-PGE deposits

机译：地表地球化学在发现Babel和Nebo岩浆镍铜PGE矿床中的作用

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摘要

The inexpensive geochemical exploration technique based on broad-spaced deflation lag sampling played a key role in the discovery of the Babel and Nebo ortho-magmatic Ni–Cu–platinum group elements (PGE) deposits. An area of 1100 km2 in the western Musgrave Block in central Australia was explored using deflation lag samples collected on a 1 km x 0.5 km grid. A total of 35 elements were determined using either inductively coupled plasma mass spectrometry (ICP-MS) or inductively coupled plasma optical emission spectrometry on a sample aliquot digested with mixed acid. The precious elements including Au, Pt and Pd were determined using a lead collection fire assay method with an ICP-MS determination. The multi-element analysis revealed two samples indicative of weathered Ni–Cu sulphides from among many stronger Ni or Cu and Pt anomalies. The most anomalous sample of the two contained concentrations of 566 ppm Ni, 950 ppm Cu and 27 ppb Pt.
机译：基于宽间隔 放气滞后采样的廉价地球化学勘探技术在发现 Babel和Nebo正交岩浆镍铜铂中起着关键作用组元素（PGE）存款。使用在1 km x 0.5 km网格上收集的通缩 滞后样本，探索了澳大利亚中部西部 Musgrave区块1100 km 2 的面积。使用电感耦合等离子体 质谱（ICP-MS）或电感耦合等离子体光学 发射光谱法测定了总共35种元素等分试样用混合的 酸消化。使用铅收集火分析法和ICP-MS测定法测定了Au，Pt和Pd等珍贵元素。 多元素分析显示两个样品表明< sup> 从许多更强的Ni 或Cu和Pt异常中风化了Ni-Cu硫化物。两种 浓度最高的样品分别为566 ppm Ni，950 ppm Cu和27 ppb Pt。

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