Studies of Magmatic Vapor Evolution

岩浆蒸气演化研究

• 批准号: 8706198
• 负责人: Philip Candela
• 金额: $ 16万
• 依托单位: University of Maryland, College Park
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-08-15 至 1991-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8706198&HistoricalAwards=false
• 关键词: Studies; Magmatic; Vapor; Evolution

This represents a continuation of research previously supported by NSF grant EAR83-19109 involving experimental and theoretical studies of the geochemistry of igneous vapor phases. Specific objectives include (1) expansion of previously developed models of the processes involved in evolution of magmatic vapors to include the effects of batch vs. fractional vapor evolution, pressure-dependent vapor/liquid partitioning of chlorine, oxygen- fugacity dependent partitioning equilibria, and the effects of crystallization of hydrous mineral phases and (2) further experimental studies of partitioning of ore metals (particularly tungsten, zinc, copper, and molybdenum) among magma, vapor, and mineral phases. The results of these studies will further our understanding of the fundamental processes involved in the end- stages of crystallization of igneous rocks, the evolution of magmatic vapors, and the formation of important ore deposits. This work is jointly supported by DOE Geothermal Technology Division.

这是以前支持的研究的延续 美国国家科学基金会资助EAR 83 -19109涉及实验和理论 火成气相的地球化学研究。 具体 目标包括：（1）扩展先前开发的模型 岩浆蒸汽演化过程中， 包括间歇与部分蒸气析出的影响， 氯、氧- 逸度依赖分配平衡，以及 含水矿物相的结晶和（2）进一步 矿石金属分配的实验研究（特别是 钨、锌、铜和钼）， 矿物相 这些研究的结果将进一步促进我们的 了解最终涉及的基本过程- 岩浆岩的结晶阶段， 岩浆蒸汽和重要矿床的形成。 这项工作是由美国能源部地球物理技术联合支持 师.