Origin of giant sediment-hosted base-metal deposits: case studies from the Central African Copperbelt, Democratic Republic of Congo

巨型沉积物贱金属矿床的起源：刚果民主共和国中非铜矿带的案例研究

• 批准号: 499944-2016
• 负责人: Turner, Elizabeth
• 金额: $ 11.89万
• 依托单位: Laurentian University of Sudbury
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2016
• 资助国家: 加拿大
• 起止时间: 2016-01-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=607787
• 关键词: Origin; giant; sediment; hosted; base

Industrial metals such as copper and zinc are critical to everyday life and have long been a significant component of Canada's economy. Undiscovered ore deposits that are partly exposed at Earth's surface and comparatively easy to find are now rare, and mineral exploration must shift focus to buried ('blind') resources that will be the future's sources of metals. Developing intelligent and efficient ways to find blind ore deposits will require investing in understanding how and why ore deposits form where they do. This project will advance the understanding of where and why a major type of base-metal deposit forms, using two exceptional copper and zinc deposits as case studies. The Central African Copperbelt (CACB) in Democratic Republic of Congo (DRC) and Zambia has been known and exploited for centuries, but the timing of mineralising events and the ultimate source of the enormous volume of base metals in the district have proven difficult to resolve; a unified geological history of the district and explanation for its world-class endowment remain elusive. This project will address the origin, controls on, and broader implications of two understudied world-class sediment-hosted base-metal deposits in DRC: Kipushi and Kamoa. In doing so, this project will contribute to the understanding of the dominant controls on these types of sediment-hosted ore system globally, including related districts in northwestern Canada, and will train five graduate students, one post-doctoral fellow, and two undergraduate students.

铜和锌等工业金属对日常生活至关重要，长期以来一直是加拿大经济的重要组成部分。部分暴露在地球表面且相对容易发现的未发现矿床现在已经很少见，矿产勘探必须将重点转向埋藏（“盲目”）资源，这些资源将成为未来的金属来源。开发智能、高效的方法来寻找盲目矿床需要投资于了解矿床如何以及为何形成。该项目将利用两种特殊的铜和锌矿床作为案例研究，加深对主要类型贱金属矿床形成地点和原因的理解。刚果民主共和国 (DRC) 和赞比亚的中非铜矿带 (CACB) 为人所知并已开发了几个世纪，但该地区矿化事件的时间和大量贱金属的最终来源已被证明难以解决;该地区统一的地质历史和对其世界级禀赋的解释仍然难以捉摸。该项目将解决刚果民主共和国两个正在研究的世界级沉积物贱金属矿床的起源、控制和更广泛的影响：基普什和卡莫阿。在此过程中，该项目将有助于了解全球范围内这些类型的沉积物矿石系统的主导控制，包括加拿大西北部的相关地区，并将培训五名研究生、一名博士后研究员和两名本科生。