The source of gold and fluid evolution of the Klondike gold district, Yukon Territory

这项建议将调查育空孤星金矿床的金的形成和来源。这将使用详细的钻石钻芯测井、反射光学显微镜和扫描电子显微镜相结合的方法来确定不同世代的硫化物和金矿化以及与金矿化相关的常见蚀变矿物。不同的脉代和它们的相对时间可以利用横切关系确定。将使用辉钼矿测年来确定形成日期。随后将对选定的黄铁矿进行激光烧蚀电感耦合等离子体质谱(LA-ICPMS)斑点分析、LA-ICPMS MAP分析、二次离子质谱仪(SIMS)。这些数据将被用来了解系统内流体和金属的来源和演化。将用流体包裹体分析补充黄铁矿痕量元素和硫同位素数据，以了解流体的盐度、形成温度和二氧化碳含量。然后，这些数据将被用来开发矿床形成的地质模型，然后将被用来确定该地区其他也有可能成矿的地区。

This proposal will investigate the formation and source of gold in the Lone Star gold deposit, Yukon. This will be done using a combination of detailed diamond drill core logging, reflected light microscopy, and scanning electron microscopy to determine different generation of sulfide and gold mineralization and common alteration minerals associated with the gold mineralization. The different vein generations and their relative timing with be determined using cross cutting relationships. Molybdenite dating will be used to identify the date of formation. This will be followed by laser ablation inductively couple plasma mass spectrometry (LA-ICPMS) spot analyses, LA-ICPMS map analyses, secondary ion mass spectrometry (SIMS) on selected pyrite generations. These data will be used to understand the source and evolution of the fluids and metals within the system. The pyrite trace element and sulfur isotope data will be supplemented with fluid inclusion analyses to gain an understanding of the salinity, temperature of formation, and CO2 content of the fluids. These data will then be used to develop a geological model for the formation of the deposit which will then be used to identify areas else where in the district that are also prospective for mineralization.