Genesis and localization of Ni-Cu-PGE mineralization in the Sudbury structure

Sudbury 构造中 Ni-Cu-PGE 矿化的成因和定位

• 批准号: 530035-2018
• 负责人: Lesher, CarlMichael
• 金额: $ 7.91万
• 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: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=657264
• 关键词: Genesis; localization; Ni; Cu; PGE

This project will study how the world's largest accumulation of nickel-copper sulfides formed and how they became localized at the base of an impact melt sheet and in associated projections into the surrounding rocks. It will focus on three particularly important problems: 1) the sources of sulfur, nickel, copper, and platinum-group elements in the ores, some of which may come from the impact melt and some of which may come from underlying rocks after impact, 2) the causes and timing of the event leading to the formation of the ores and whether it occurred across the entire melt sheet or whether it was more localized, and 3) the origin and timing of emplacement of the projections into the surrounding rocks, many of which host significant amounts of mineralization. The work will be done in three key areas, each addressing a specific part of the problem, and will train 3 PhD students in field, laboratory, and computational methods.****

该项目将研究世界上最大的镍铜硫化物堆积物是如何形成的，以及它们是如何在撞击熔融板的底部以及在周围岩石的相关投影中定位的。它将侧重于三个特别重要的问题：1)矿石中硫、镍、铜和铂族元素的来源，其中一些可能来自撞击熔体，另一些可能来自撞击后的下伏岩石；2)导致矿石形成的事件的原因和时间，以及它是发生在整个熔体上，还是更局部地发生；3)投射物进入围岩的起源和时间；其中许多都有大量的矿化。这项工作将在三个关键领域进行，每个领域都解决问题的一个特定部分，并将在实地，实验室和计算方法方面培养3名博士生。****