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，一直是加拿大经济的重要组成部分。未被发现的矿床部分暴露在地球表面，相对容易找到，现在很少见，矿产勘探必须将重点转移到埋藏（“盲”）资源，这将是未来的金属来源。开发智能和有效的方法来寻找盲矿床将需要投资于了解矿床是如何以及为什么在他们这样做的地方形成的。本项目将利用两个特殊的铜和锌矿床作为案例研究，促进对一种主要类型的贱金属存款形成的地点和原因的理解。位于刚果民主共和国（DRC）和赞比亚的中非铜带（CACB）已被发现并开采了几个世纪，但矿化事件的时间和该地区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及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未充分研究的世界级沉积物托管贱金属矿床的起源，控制和更广泛的影响：Kipushi和Kamoa。在这样做的过程中，该项目将有助于了解这些类型的沉积物托管的矿石系统的主导控制全球，包括在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。