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.

拟议的研究将集中在荷马湖前景的贵金属含贱金属矿化，位于西北地区（NT）耶洛奈夫市以北约25公里处。前景显示，在新太古代玄武岩岩性中存在（半）块状硫化物矿床。前景的成因是模糊的，因为它具有火山成因块状硫化物和剪切容矿矿床的特点。拟议的研究将涉及三名高素质的人员（1个硕士，2个理学士），其中硕士将使用实地工作和微观分析方法相结合的方法，以填补缺乏对荷马湖前景，耶洛奈夫绿岩带（YGB），南部奴隶克拉通的研究。该硕士课程将侧重于（半）块状硫化物的空间分布，其组合，结构和矿物化学，并限制存款的成因，重点是热液流体条件，硫的来源和金侵位的相对时间。这将提供一个存款模型，解释锌铅？金、银富集于双峰-基性岩容矿组合中，并细化了矿化样式。这两名理学士学生将通过限制以下条件来补充理学硕士的工作：（1）存款形成的温度（BSc#1）和（2）使用全岩地球化学（BSc#2）的蚀变程度。拟议中的研究是学术界（马尼托巴大学）、政府（西北地区地质调查局）和工业界（金矿资源公司）之间的合作。不仅将培养高素质的人才，掌握学术界、政府和工业界高度追捧的各种技能，包括岩心测井、数据管理和批判性思维;其结果还将有助于了解YGB的成矿历史。此外，本研究的结果将有助于正在进行的和未来的勘探基本金属矿化在YGB和奴隶克拉通，并有助于正在进行的辩论中的作用，变质和变形的金属tenor。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。