Integrated numerical investigation of hydrothermal fluid flow in sedimentary basins: implications for the formation of unconformity-type uranium deposits

沉积盆地热液流动的综合数值研究：对不整合型铀矿床形成的影响

• 批准号: 261283-2008
• 负责人: Yang, Jianwen
• 金额: $ 1.6万
• 依托单位: University of Windsor
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2011
• 资助国家: 加拿大
• 起止时间: 2011-01-01 至 2012-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=479752
• 关键词: Integrated; numerical; investigation; hydrothermal; fluid

Fluids are strategically associated with both the formation and preservation of most types of economic ore deposit, especially those in sedimentary basins. Numerical modeling has proven to be an efficient tool for testing, comparing and contrasting various hypotheses regarding subsurface fluid flow and the resulting ore-forming processes. The proposed research program is aimed at developing and applying 'geologically realistic' numerical models for quantifying ore genesis, in particular in unconformity-type uranium mineralization in sedimentary basins. The research will concentrate on two ancient basins of different ages, the eastern Paleoproterozoic Thelon Basin (Canada) and the Mesozoic Zhongfeng Basin (China). An integrated computational modeling approach will be employed to advance our understanding of unconformity-type ore genesis. The proposed research will support the training of two Ph.D. students, and it will also result in a theoretical framework to quantify the nature, pathways and timespan of hydrothermal fluid flow during ore genesis and establish a range of effective exploration criteria to target new major deposits in the selected sedimentary basins and in other similar basins elsewhere in the world.

流体与大多数类型的经济矿床（尤其是沉积盆地中的矿床）的形成和保存具有战略相关性。数值模型已被证明是测试、比较和对比有关地下流体流动和由此产生的成矿过程的各种假设的有效工具。拟议的研究计划旨在开发和应用“地质现实”数值模型来量化矿石成因，特别是沉积盆地不整合型铀矿化。研究将集中在两个不同时代的古代盆地：东部古元古代塞隆盆地（加拿大）和中生代中风盆地（中国）。将采用综合计算建模方法来增进我们对不整合型矿石成因的理解。拟议的研究将支持培养两名博士生。它还将形成一个理论框架，以量化成矿过程中热液流动的性质、路径和时间跨度，并建立一系列有效的勘探标准，以瞄准选定沉积盆地和其他类似盆地中的新主要矿床在世界上。