Experimental Studies of Granitoid Melt Production During Ultrametamorphism of Aluminous Metasediments

铝质变质沉积岩超变质作用过程中花岗岩类熔体生成的实验研究

• 批准号: 8915624
• 负责人: A. Dana Johnston
• 金额: $ 9万
• 依托单位: University of Oregon Eugene
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-06-01 至 1992-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8915624&HistoricalAwards=false
• 关键词: Experimental; Studies; Granitoid; Melt; Production

This work is an ongoing experimental research program designed to provide data on the variables controlling the mechanical behavior of partially molten systems within the crust. The specific problem to be investigated is the production of granitoid melts by ultrametamorphism of metasediments, and it is expected that the results will provide a new dimension to the interpretation of field occurrences of migmatites and granites. A primary objective is to determine how the amount and composition of melt produced varies with temperature, pressure, and the bulk composition of the staring material. Experiments designed to investigate the melting behavior of layered metasediments are also planned and the implications of all experiments for metamorphic temperature and pressure will be evaluated.

这项工作是一个正在进行的实验研究计划，旨在 提供控制机械性能的变量数据 地壳内部分熔融的系统。 具体 要研究的问题是花岗岩熔体的产生 由于变质沉积物的超变质作用，预计 这些结果将为解释 混合岩和花岗岩的野外产状。 主 目的是确定熔体的量和组成 产生的热量随温度、压力和体积而变化 起始材料的组成。 实验旨在 研究层状变质沉积物的熔融行为， 也计划和所有实验的影响， 变质温度和压力将被评估。