首页> 外文期刊>Geochemistry: Exploration, Environment, Analysis >Two lithogeochemical approaches to the identification of alteration patterns at the Elura Zn-Pb-Ag deposit, Cobar, New South Wales, Australia: use of Pearce Element Ratio analysis and Isocon analysis
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Two lithogeochemical approaches to the identification of alteration patterns at the Elura Zn-Pb-Ag deposit, Cobar, New South Wales, Australia: use of Pearce Element Ratio analysis and Isocon analysis

机译:在澳大利亚新南威尔士州科巴的Elura Zn-Pb-Ag矿床识别蚀变模式的两种岩性化学方法:使用Pearce元素比率分析和Isocon分析

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摘要

Lithogeochemical approaches to the identification of ore-related alteration can be obscured by closure effects and/or pre-existing lithological variations. Two mass balance approaches that can address these problems are Pearce Element Ratio analysis (PER) and Isocon analysis (IA). Both approaches have been applied to sedimentary rocks hosting the Elura ore-body, north of Cobar, in central-west New South Wales, Australia. Elura is an epigenetic, zinc–lead–silver deposit, (45 Mt with 8.5% Zn, 5.3% Pb, and 69 ppm Ag), hosted within Devonian siltstone–sandstone turbidites of the Cobar Basin. The ability of PER and IA to identify alteration at Elura and to navigate towards ore within altered zones is evaluated.
机译:岩石地球化学方法识别与矿石有关的 蚀变的方法可以通过封闭作用和/或预先存在的 岩性变化来掩盖。可以 解决这些问题的两种质量平衡方法是Pearce Element Ratio分析(PER) 和Isocon分析(IA)。两种方法均已应用于 在澳大利亚新南威尔士州中西部的Cobar以北的Elura矿体所在的沉积岩中。 Elura是一种表观成因的锌铅银矿床(45 Mt,含8.5%Zn,5.3% Pb和69 ppm Ag),位于泥盆纪粉砂岩-砂岩中。科巴盆地的 浊度。评估了PER和IA识别Elura处蚀变并在 更改区域内向矿石导航的能力。

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