Characterization of the precious metal-bearing base metal mineralization at the Homer Lake prospect, Yellowknife greenstone belt, Northwest Territories

西北地区黄刀绿岩带荷马湖矿区含贵金属贱金属矿化特征

• 批准号: 577492-2022
• 负责人: Brueckner, StefanieSM
• 金额: $ 2.91万
• 依托单位: University of Manitoba
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=751051
• 关键词: Characterization; precious; metal; bearing; base

The proposed research will focus on the precious metal-bearing base metal mineralization at the Homer Lake prospect, located circa 25km north of the city of Yellowknife, Northwest Territories (NT). The prospect shows (semi-)massive sulfide accumulations in Neo-Archean basaltic lithologies. The genesis of the prospect is ambiguous since it has characteristics of both volcanogenic massive sulfide and shear-hosted mineral deposits. The proposed research will involve three highly qualified personnel (1MSc, 2BSc) of which the MSc will use a combined approach of field work and micro-analytical methods to fill in the lack of research on the Homer Lake prospect, Yellowknife greenstone belt (YGB), southern Slave craton. The MSc will focus on the spatial distribution of the (semi-)massive sulfides, their assemblage, texture, and mineral chemistry and constrain the genesis of the deposit with focus on hydrothermal fluid conditions, source(s) of sulfur, and relative timing of gold emplacement. This will provide a deposit model that explains the zinc-lead?gold-silver enrichment within a bimodal-mafic host assemblage and refine the mineralization style. The two BSc students will complement the MSc's work by constraining: (1) the temperature at which the deposit formed (BSc#1) and (2) the degree of alteration using whole rock geochemistry (BSc#2). The proposed research is a collaboration between academia (University of Manitoba), government (Northwest Territories Geological Survey), and industry (Gold Terra Resource Corp.) and will not only train highly qualified personnel in various skills that are highly sought after in academia, government and industry including core logging, data management and critical thinking; the results will also aid in understanding the mineralization history of the YGB. Furthermore, results from this study will aid in on-going and future exploration of base metal mineralization in both the YGB and the Slave craton and contribute to the on-going debate on the role of metamorphism and deformation on metal tenor. The study's outcomes will have the potential to positively impact the economic growth of the NT including local Indigenous communities.

拟议的研究将重点介绍荷马湖前景的珍贵金属金属矿化，位于西北地区（NT）的耶洛奈夫市以北25公里处。该前景显示了（半）硫化物的大量硫化物在新建筑玄武岩岩性中的积累。该前景的起源是模棱两可的，因为它具有火山质质硫化物和剪切托管矿物沉积物的特征。拟议的研究将涉及三名高素质的人员（1MSC，2BSC），其中MSC将使用现场工作和微型分析方法的合并方法来填补对荷马湖前景，Yellowknife Greenstone Belt（YGB），Southern Slove Craton的研究。 MSC将集中于（半）质量硫化物的空间分布，它们的组合，质地和矿物化学，并以关注水热流体条件，硫的来源以及金的相对时机的重点来约束沉积物的起源。这将提供一个存款模型，该模型可以解释双峰型宿主组合中的锌铅元素富集并完善矿化样式。两位BSC学生将通过约束：（1）形成存款的温度（BSC＃1）和（2）使用整个岩石地球化学（BSC＃2）的变化程度来补充MSC的工作。拟议的研究是学术界（曼尼托巴大学），政府（西北地区地质调查局）和工业（Gold Terra Resource Corp.）之间的合作，不仅将在包括学术界，核心伐木，数据管理和批判性思维在内的各种技能中培训各种技能的高素质人员；结果还将有助于理解YGB的矿化历史。此外，这项研究的结果将有助于YGB和奴隶克拉顿中对碱金属矿化的持续探索，并有助于关于变质和金属男高音变形的作用的持续辩论。这项研究的结果将有可能对包括当地土著社区在内的NT的经济增长产生积极影响。