Chlorine isotopes in hydrothermal systems and the global Cl cycle

热液系统中的氯同位素和全球氯循环

• 批准号: 250098-2012
• 负责人: Gleeson, Sarah
• 金额: $ 2.77万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2014
• 资助国家: 加拿大
• 起止时间: 2014-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=547509
• 关键词: Chlorine; isotopes; hydrothermal; systems; global

The total value of all mining and mineral processing industries was $31.9 billion in 2009 (Natural Resources Canada 2011). Therefore, the mining industry is a significant contributor to the Canadian economy and their exploration and development of mineral deposits can have a significant economic and societal impact in remote areas with no other significant industry such as in Canada's North. This proposal is concerned with studying a range of hydrothermal mineral deposit types that form from large volumes of hot saline fluids at different temperatures and pressures in the Earth's crust. A common feature of these deposits is that all the mineralizing fluids contained significant amounts of dissolved chlorine, which forms chemical complexes with the metal ions and allows higher concentrations of metals to be transported by the water from the metal source regions to the area where the ore deposit formed. As such the chlorine in these fluids is a major component of the ore forming system.

2009年，所有采矿和矿物加工行业的总价值为319亿美元(加拿大自然资源，2011年)。因此，采矿业是加拿大经济的重要贡献者，他们对矿藏的勘探和开发可以对偏远地区产生重大的经济和社会影响，而在加拿大北部等没有其他重要工业的地区。这一建议涉及研究一系列热液矿藏类型，这些矿藏是由地壳中不同温度和压力下的大量热盐水流体形成的。这些矿床的一个共同特征是，所有成矿流体都含有大量的溶解氯，这些溶解氯与金属离子形成化学络合物，使较高浓度的金属可以通过水从金属源区输送到矿床形成的区域。因此，这些流体中的氯是成矿系统的主要成分。