The source, transport and deposition of the platinum-group elements (PGE) in unconventional magmatic settings in Canada

加拿大非常规岩浆环境中铂族元素（PGE）的来源、迁移和沉积

• 批准号: 341762-2007
• 负责人: Hanley, Jacob
• 金额: $ 1.79万
• 依托单位: Saint Mary's University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2010
• 资助国家: 加拿大
• 起止时间: 2010-01-01 至 2011-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=458565
• 关键词: source; transport; deposition; platinum; group

Canada is faced with a critical shortage of platinum and palladium for the future demand of innovative energy production and fuel storage technologies. These metals are uniquely suited to these technological applications, and have no alternatives. Faced with shrinking reserves of platinum and palladium from traditional geological settings ("mafic" igneous rocks) in Canada, and the high cost of obtaining these metals from foreign suppliers, the mineral exploration industry will need to focus on geological environments in Canada that were previously not considered as being viable sources for the metals, but which are known to contain them in significant quantities in certain areas. Porphyry-type deposits are metallic ore deposits that typically contain a variety of valuable metals in a number of distinct zones. The deposits form as "felsic" magmas (i.e, molten rocks rich in Si, Al, Na and K) rise into the crust, cool and crystallize, and release fluid phases that can no longer stay dissolved in the magma. These fluids may contain high concentrations of dissolved metals that precipitate in economic concentrations. Traditionally considered to be major sources of copper, gold and molybdenum, porphyry deposits may provide extremely important resources of platinum and palladium (the platinum-group elements or "PGE") for Canada. Unfortunately, our knowledge of the origin of platinum and palladium in these unusual settings prevents cost-effective and successful discrimination between geological host environments that may or may not contain economic concentrations of platinum and palladium. The proposed research will identify geological criteria that can be directly applied in the mineral exploration industry in Canada to predict the location of new deposits of platinum and palladium in unconventional rock-forming environments such as porphyry deposits already known to contain copper or gold. The proposed research will have direct benefits to Canada`s economy and social/environmental health, and will maintain the country's standing as a world leader in the global geoscience and mineral resource community.

加拿大正面临铂和钯的严重短缺，以满足未来创新能源生产和燃料储存技术的需求。这些金属特别适合这些技术应用，并且没有替代品。面对加拿大传统地质环境（“镁铁质”火成岩）中铂和钯储量的减少，以及从外国供应商获得这些金属的高昂成本，矿产勘探行业将需要关注加拿大的地质环境，这些地质环境以前不被认为是金属的可行来源，但已知在某些地区含有大量金属。斑状矿床是金属矿床，通常在许多不同的区域含有多种有价金属。矿床形成为“长英质”岩浆（即富含Si、Al、Na和K的熔融岩石）上升到地壳中，冷却和结晶，并释放出不再溶解在岩浆中的流体相。这些流体可能含有高浓度的溶解金属，其以经济浓度沉淀。斑岩矿床传统上被认为是铜、金和钼的主要来源，可为加拿大提供极为重要的铂和钯（铂族元素或“PGE”）资源。不幸的是，我们的铂和钯在这些不寻常的设置的起源知识，防止成本效益和成功的区别地质宿主环境，可能会或可能不会包含经济浓度的铂和钯。拟议的研究将确定可直接应用于加拿大矿产勘探行业的地质标准，以预测非常规岩石形成环境中新的铂和钯矿床的位置，例如已知含有铜或金的斑岩矿床。拟议的研究将直接有利于加拿大的经济和社会/环境健康，并将保持该国作为全球地球科学和矿产资源界的世界领导者的地位。