Experimental constraints on the genesis of magmatic and magmatic-hydrothermal ore deposists

岩浆和岩浆热液矿床成因的实验限制

• 批准号: 327050-2009
• 负责人: Jugo, Pedro
• 金额: $ 1.46万
• 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: 2013
• 资助国家: 加拿大
• 起止时间: 2013-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=526798
• 关键词: Experimental; constraints; genesis; magmatic; hydrothermal

The development of industrialized societies requires the use of resources that have to be mined. Among those resources are several important metals (e.g. Cu, Ni, Pd, Pt) that, at present, can only be extracted from deposits formed by cooling of magmas (orthomagmatic deposits) or by interaction of magmas with aqueous fluids (magmatic-hydrothermal deposits). As demands of these metals grow due to the requirements of developed and developing countries and supply diminishes by the progressive exhaustion of known resources, the need to find new deposits for these metals increases. Successful, efficient exploration for these resources and their efficient exploitation relies on our understanding of how such deposits form. Because these resources are limited, every new discovery requires stronger efforts and a better understanding of where mineralization occurs, how these deposits are formed and what controls the spatial distribution of the metals of interests within a particular district. My research is aimed at understanding the geochemical mechanisms that favour the transfer of metals of interest from the Earth's mantle to the crust and the mechanism that control the precipitation of these metals in the anomalous concentrations required for their extraction to be economically feasible. In addition, my research also aims to understand how subsequent thermal events may further remobilize metals and affect the distribution of these metals in their current environments. The goal is to integrate the results of my work with the broader research work on ore deposit genesis to generate models that better predict how and where these deposits can be found in order to optimize exploration and exploitation of these non-renewable resources.

工业化社会的发展需要利用必须开采的资源。在这些资源中，有几种重要的金属（如铜、镍、钯、铂）目前只能从岩浆冷却形成的矿床（正岩浆矿床）或岩浆与含水流体相互作用形成的矿床（岩浆热液矿床）中提取。由于发达国家和发展中国家的需求，这些金属的需求量增加，而已知资源的逐渐枯竭使供应量减少，因此需要为这些金属寻找新的矿床。这些资源的成功、有效勘探及其有效开采取决于我们对这些矿床如何形成的理解。由于这些资源是有限的，每一个新的发现都需要更大的努力，更好地了解矿化发生在哪里，这些矿床是如何形成的，以及是什么控制了特定地区内感兴趣的金属的空间分布。我的研究旨在了解有利于感兴趣的金属从地幔转移到地壳的地球化学机制，以及控制这些金属沉淀的机制，这些金属的沉淀在提取经济上可行所需的异常浓度。此外，我的研究还旨在了解随后的热事件如何进一步重新激活金属，并影响这些金属在当前环境中的分布。我们的目标是将我的工作成果与更广泛的矿石存款成因研究工作相结合，以生成更好地预测如何以及在哪里可以找到这些矿床的模型，以优化这些不可再生资源的勘探和开发。