Quantitative Modeling of Gas Migration in Layered Intrusions

层状岩体中气体运移的定量模拟

• 批准号: 0407928
• 负责人: A. Boudreau
• 金额: $ 16.89万
• 依托单位: Duke University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-01-01 至 2007-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0407928&HistoricalAwards=false
• 关键词: Quantitative; Modeling; Gas; Migration; Layered

BoudreauEAR-0407928The main objective of this proposal is to improve the quantitative modeling of compaction and silicate liquid and gas infiltration and application of this modeling to layered intrusions. More specifically, this research will employ improved and more complex gas speciation models to study the effect of fluid migration and the formation of sulfide-hosted platinum-group element (PGE) deposits in layered intrusions. A second aspect of this work will be to expand quantitative modeling to include Cr components in pyroxene and applications to understanding the formation of chromitite layers in these intrusions. This latter work will include field, petrographic and geochemical study of chromites from the Bushveld Complex in South Africa to "ground truth" results and predictions from the modeling work.The broader impacts of this work will be in the support of education and training of a graduate student and possibly of interested undergraduates doing independent research projects. Computer programs that result from this study will be made available for any interested party to use in both teaching and research. It will have implications also for the petrogenesis and exploration of economic mineral deposits (PGE and Cr) in layered intrusions.

BOUDREAEAR-0407928该提案的主要目的是改善压实和硅酸盐液体和气体浸润的定量建模，以及该模型在分层侵入术中的应用。 更具体地说，这项研究将采用改进且更复杂的气体物种形成模型来研究流体迁移的影响以及在分层侵入中的硫化物托管铂类元素（PGE）沉积物的形成。 这项工作的第二个方面将是扩展定量建模，以包括辉石中的CR成分以及用于了解这些入侵中铬铁矿层的形成的应用。 后一项工作将包括对南非布什维尔德综合体的镀铬物的现场，岩石学和地球化学研究，以对“地面真相”的结果以及建模工作的预测。这项工作的更广泛的影响将是为了支持教育和培训研究生的研究生以及可能有兴趣的大学生，以及从事独立研究项目的感兴趣的有兴趣的研究生。 这项研究产生的计算机程序将用于任何感兴趣的方在教学和研究中使用。 它将对分层侵入中经济矿藏（PGE和CR）的石化和探索也有影响。