Metallogeny of the Upper Beaver deposit

上海狸矿床成矿作用

• 批准号: 543673-2019
• 负责人: Beaudoin, Georges
• 金额: $ 8.75万
• 依托单位: Université Laval
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2019
• 资助国家: 加拿大
• 起止时间: 2019-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=693319
• 关键词: Metallogeny; Upper; Beaver; deposit

Upper Beaver is a Au-Cu mineral deposit associated with magnetite-bearing veins and breccias, and hosted by altered volcanic and plutonic rocks. It is thus a type of mineralization that is different from the typical lode gold veins of the Kirkland Lake and Larder Lake area. The origin of the Upper Beaver deposit is presently poorly constrained and several deposit models have been proposed to classify it, including Archean intrusion-related and Iron-Oxide-Copper-Gold (IOCG) deposit types. Understanding the origin and setting of the Upper Beaver deposit has important implications to orient mineral exploration for similar types of mineralization in the Superior Province. The proposed research program will investigate the regional tectonic and magmatic setting of the Upper Beaver deposit environment in order to integrate the deposit-scale studies to the larger scale. In this context, the proposed research program will aim to document several relevant aspects of the deposit in order to constrain its origin: 1) the structural geology of the deposit breccias in order to place constraints to their origin; 2) document the mineralogical paragenesis and its spatial distribution in 3 dimensions; 3) geochronology to constrain magmatic and hydrothermal events; and 4) use stable isotope (H, C, O, S) and fluid inclusion to decipher the origin and evolution of the hydrothermal fluids that formed the deposit. In addition, the research program will measure the petrophysical properties of representative samples and along downhole surveys to provide key data needed to interpret geophysical surveys in mineral exploration. Collectively, these results will be integrated into a regional framework that will be useful for more efficient predictive targeting for this type of Au-Cu mineralization by the Canadian mining industry.

Upper Beaver是一个与含磁铁矿脉和角砾岩有关的金-铜存款矿床，并由蚀变火山岩和深成岩组成。因此，这是一种不同于柯克兰湖和拉尔德湖地区典型矿脉金矿脉的矿化类型。Upper Beaver存款的成因目前没有得到很好的限制，已经提出了几种存款模型来对其进行分类，包括太古代侵入相关和氧化铁铜金（IOCG）存款类型。了解上海狸存款的起源和设置具有重要的意义，定向矿产勘探类似类型的矿化在上级省。拟议的研究计划将调查上海狸存款环境的区域构造和岩浆背景，以整合存款规模的研究，以更大的规模。在此背景下，拟议的研究计划旨在记录存款的几个相关方面，以限制其起源：1）存款角砾岩的构造地质学，以限制其起源; 2）记录矿物共生及其三维空间分布; 3）地质年代学，以限制岩浆和热液事件;（4）利用稳定同位素（H、C、O、S）和流体包裹体研究，探讨成存款热液的成因和演化。此外，该研究计划将测量代表性样品的岩石物理性质，并沿着井下测量，以提供解释矿产勘探中地球物理测量所需的关键数据。总的来说，这些结果将被整合到一个区域框架，这将是有用的，更有效的预测目标，这种类型的Au-Cu矿化由加拿大采矿业。