Geology, Geochemistry, and Petrogenesis of Magmatic Ni-Cu-(PGE) Deposits

岩浆镍铜（PGE）矿床的地质学、地球化学和岩石成因

• 批准号: 203171-2012
• 负责人: Lesher, CarlMichael
• 金额: $ 2.33万
• 依托单位: Laurentian University of Sudbury
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=569886
• 关键词: Geology; Geochemistry; Petrogenesis; Magmatic; Ni

Canada is a major exporter of nickel, copper, platinum, and palladium, most of which comes from iron-nickel-copper sulfide deposits and is used to make stainless steels, rechargable batteries, and other high-tech applications. Discovering these deposits, most of which are buried under overburden or other rocks, is difficult and expensive, requiring an understanding of how they formed, in which geological environments they formed, and how to recognize the "footprint" of an economic mineralization amongst the plethora of similar rocks that do not contain economic mineralization. This project addresses two aspects that we need to understand much better: how the molten rocks from which these deposits formed melted and incorporated underlying rocks, a process that appears to be critical to forming many deposits of this type, and how iron-nickel-copper sulfide melts crystallize and become zoned into copper-platinum-poor upper parts and copper-platinum-rich lower parts. Both are critical in understanding how the deposits formed and are critical parts of the ore deposit 'footprint".

加拿大是镍、铜、铂和钯的主要出口国，其中大部分来自铁镍铜硫化物矿床，用于制造不锈钢、可充电电池和其他高科技应用。发现这些矿床，其中大部分埋在覆盖层或其他岩石下，是困难和昂贵的，需要了解它们是如何形成的，它们形成的地质环境，以及如何在大量不含经济矿化的类似岩石中识别经济矿化的“足迹”。这个项目解决了我们需要更好地了解的两个方面：这些矿床形成的熔融岩石如何熔化并结合下伏岩石，这一过程似乎对形成许多这种类型的矿床至关重要，以及铁镍铜硫化物熔体如何结晶并分区为铜铂贫上部和铜铂富下部。两者对了解矿床如何形成至关重要，是矿石存款足迹的关键部分”。