Chemical fingerprinting of hydrothermal ore deposit systems

热液矿床系统的化学指纹图谱

• 批准号: RGPIN-2015-05782
• 负责人: Kontak, Daniel
• 金额: $ 1.6万
• 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=590635
• 关键词: Chemical; fingerprinting; hydrothermal; ore; deposit

The research undertaken in this program will address truly fundamental questions about how important types of gold deposits form. Until now, geologists have understood the fluids that carry and deposit gold in both metamorphic and magmatic gold deposits to be ‘low-salinity aqueous-carbonic fluids’ (H2O-CO2±CH4). This description is extremely simple, grossly oversimplifies the complexity of the ore fluids that have been proven to be involved in specific examples of each of the deposit types, and ignores subtleties of fluid composition that may be critical to ore formation. More problematically, this description encourages the assumption that these ore deposit types are similar, even though their fundamental tectonic settings are clearly entirely different. Is it really possible that the ore-depositing fluids in strikingly different geologic settings are so similar and so simple? Answering this question will help geologists understand the fundamental processes behind the formation of gold deposits, a significant part of the Canadian economy for past century, much better, and will also help mineral exploration companies focus their work and their expenditures more efficiently.

该计划中进行的研究将解决有关黄金存款的重要类型的真正基本问题。到目前为止，地质学家已经了解了在变质和岩浆黄金沉积物中携带和沉积黄金的流体为“低含量水溶液 - 谐波液”（H2O-CO2±CH4）。该描述非常简单，非常过分简化的矿石流体的复杂性已被证明与每种沉积物类型的特定示例有关，并且忽略了可能对矿石形成至关重要的流体组成的微妙之处。更有问题的是，该描述鼓励以下假设：这些矿石存款类型相似，即使它们的基本构造环境显然完全不同。在截然不同的地质环境中，矿石销售的流体真的有可能是如此相似且如此简单吗？回答这个问题将有助于地质学家了解形成黄金存款背后的基本过程，这是加拿大经济的重要部分，在过去的一个世纪中，也更好，也将帮助矿产勘探公司更加有效地集中于他们的工作和支出。