Field mapping, drill-core logging, petrography, laser ICP-MS analysis on pyrite, chlorite geothermometry and geochemical analysis of hydrothermally altered rocks reveal two distinct styles of gold mineralisation at Mt. Percy. The first style is D2 shear zone-hosted and correlates with Fimiston-style mineralisation documented in the Golden Mile. Laser ICP-MS analyses on pyrite indicate high As concentrations (average of 5823 ppm for pyrite in Hannans Lake Serpentinite and 635 ppm in feldspar-quartz porphyry). Chlorite geothermometry reveals average temperatures of 262 ± 50 °C and 357 ± 50 °C in distal and proximal alteration zones, respectively. Geochemical analyses reveal (1) positive gold-silver and gold-antimony relationships; (2) lack of a base metal-gold relationship; (3) systematic increase of carbonatisation and alkali saturation indices from distal to proximal alteration zones; and (4) addition of K, Ca, Na and V, with corresponding depletion of Mg, Fe, P and REE. The second style is related to D4 sheeted quartz vein sets and correlates with Mt. Charlotte-style mineralisation documented in the Mt. Charlotte deposit. Laser ICP-MS analyses on pyrites reveal low As concentrations (average of 51 ppm for pyrites in feldspar-quartz porphyry and 870 ppm in Devon Consols Basalt). Chlorite geothermometry reveals an average temperature of 325 ± 50 °C on vein selvage in the Devon Consols Basalt. High-grade gold mineralisation (> 50 g/t Au) and extensive (< 50 m wide) hydrothermal alteration zones coincide with D2 shear zones and D4 fault-controlled sheeted quartz vein sets, and particularly in areas where both of these structures intersect porphyry stocks.

中文翻译：

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山的构造环境、围岩蚀变和金矿化。西澳大利亚州卡尔古利珀西金矿床

野外测绘、钻芯测井、岩相学、对黄铁矿的激光 ICP-MS 分析、绿泥石地质测温和热液蚀变岩石的地球化学分析揭示了 Mt. 金矿化的两种不同风格。珀西。第一种类型是 D2 剪切带托管并与黄金地带中记录的 Fimiston 型矿化相关。对黄铁矿的激光 ICP-MS 分析表明砷浓度很高（汉南斯湖蛇纹岩中黄铁矿的平均浓度为 5823 ppm，长石-石英斑岩中的平均浓度为 635 ppm）。绿泥石地质测温显示远端和近端蚀变带的平均温度分别为 262 ± 50 °C 和 357 ± 50 °C。地球化学分析揭示 (1) 金-银和金-锑的正相关关系；(2) 缺乏贱金属与黄金的关系；(3) 碳化和碱饱和度指数从远端到近端蚀变带系统性增加；(4) K、Ca、Na和V的添加，相应的Mg、Fe、P和REE的消耗。第二种风格与 D4 片状石英脉集有关，并与 Mt. 相关。山中记录的夏洛特式矿化。夏洛特存款。对黄铁矿的激光 ICP-MS 分析显示砷浓度很低（长石-石英斑岩中黄铁矿的平均浓度为 51 ppm，而德文康索斯玄武岩中的黄铁矿平均浓度为 870 ppm）。绿泥石地质温度测量显示德文康索斯玄武岩脉边的平均温度为 325 ± 50 °C。高品位金矿化（> 50 g/t Au）和广泛（< 50 m 宽）热液蚀变带与 D2 剪切带和 D4 断层控制的片状石英脉组重合，