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.

拟议的研究将集中于荷马湖矿区的含贵金属贱金属矿化，该矿区位于西北地区 (NT) 耶洛奈夫市以北约 25 公里处。远景显示新太古代玄武岩岩性中存在（半）大量硫化物堆积。该前景的成因尚不明确，因为它同时具有火山成因块状硫化物和剪切赋存矿床的特征。拟议的研究将涉及三名高素质人员（1名理学硕士、2名理学士），其中理学硕士将采用实地工作和微观分析方法相结合的方法，以填补对黄刀绿岩带（YGB）荷马湖前景研究的空白，奴隶克拉通南部。理学硕士将重点研究（半）块状硫化物的空间分布、它们的组合、结构和矿物化学，并限制矿床的成因，重点关注热液流体条件、硫的来源和相对时间。黄金阵地。这将提供一个矿床模型，解释双峰-镁铁质宿主组合内的锌-铅？金-银富集，并完善矿化类型。两名理学学士学生将通过限制以下内容来补充理学硕士的工作：(1) 沉积物形成的温度 (BSc#1) 和 (2) 使用整个岩石地球化学来确定蚀变程度 (BSc#2)。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）和工业界（Gold Terra Resource Corp.）之间的合作，不仅将培养学术界备受追捧的各种技能的高素质人才，政府和工业界，包括岩心测井、数据管理和批判性思维；研究结果还将有助于了解 YGB 的成矿历史。此外，这项研究的结果将有助于目前和未来对 YGB 和 Slave 克拉通贱金属矿化的勘探，并有助于关于变质作用和变形对金属品位的作用的持续争论。该研究的结果将有可能对北领地（包括当地原住民社区）的经济增长产生积极影响。