Evolution of the North Caribou terrane in the northwest Superior Province of Canada: tectonic setting for gold mineralization

加拿大西北部苏必利尔省北驯鹿地体的演化：金矿化的构造背景

• 批准号: 400220-2010
• 负责人: Hattori, Keiko
• 金额: $ 2.73万
• 依托单位: University of Ottawa
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2014
• 资助国家: 加拿大
• 起止时间: 2014-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=550689
• 关键词: Evolution; North; Caribou; terrane; northwest

The proposed project is a multidisciplinary study to understand the timing and geologic setting of gold mineralization during the > 300 million year evolution of the North Caribou terrane, about 500 km north of Thunder Bay. The North Caribou terrane is one of the oldest crustal domains in the North American continent and remained as the nucleus during the assembly of the Canadian Shield through accretion and collision of numerous terranes. A stable land mass developed in the area prior to deposition of shallow water sediments on its margin ca. 3.0 billion years ago. These ancient sedimentary rocks were metamorphosed and deformed during subsequent tectonic collision processes, and now host gold in the Musselwhite mine. We will conduct detailed bedrock mapping and carry out geochemical analysis of samples collected in the field to unravel these events and identify the critical event that resulted in the gold mineralization.

拟议的项目是一项多学科研究，旨在了解北卡里布岛（North Caribou Terrane）在雷霆湾（Thunder Bay）以北约500公里的北卡里布（North Caribou Terrane）进化中，黄金矿化的时机和地质环境。 北驯鹿地形是北美大陆上最古老的地壳领域之一，在加拿大盾牌组装过程中，通过众多地层的碰撞保持为核。在其边缘在浅水沉积物上沉积之前，该地区建立了稳定的土地质量。 30亿年前。这些古老的沉积岩在随后的构造碰撞过程中变态并变形，现在在Musselwhite矿山中占据黄金。我们将对田间收集的样品进行详细的基岩映射，并进行地球化学分析，以揭示这些事件并确定导致金矿化的关键事件。