Mathematical Modelling of Metamorphic Differentiation

变质分异的数学模型

• 批准号: 8721294
• 负责人: Peter Ortoleva
• 金额: $ 5万
• 依托单位: Indiana University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-04-01 至 1990-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8721294&HistoricalAwards=false
• 关键词: Mathematical; Modelling; Metamorphic; Differentiation

This project involves the development of a quantitative model to describe the processes involved during metamorphic differentiation in rock systems. The model will draw upon nonequilibrium thermodynamic theory and existing data on chemical kinetics, transport laws, and chemical speciation in metamorphic fluids, and will allow quantitative prediction of the space-time evolution of metamorphic textures from initially homogeneous, fine-grained materials. The specific objective of the project is to develop a two-dimensional simulator program based on reaction transport equations coupled with viscous flow laws, incorporating pressure-solution and interfacial energy effects as the driving forces for differentiation. The results of this research will provide a better understanding of the geochemical self-organization processes involved during metamorphism.

该项目涉及定量模型的开发， 描述了在变质分异过程中所涉及的过程， 岩石系统 该模型将借鉴非平衡热力学 理论和现有的数据化学动力学，运输法律， 变质流体中的化学形态，并将允许定量 变质结构时空演化的预测 最初均匀的细粒材料。 具体目标 该项目的主要目的是开发一个二维模拟器程序， 反应输运方程与粘性流动定律相结合， 结合压力溶液和界面能效应， 差异化的驱动力。 这项研究的结果将 更好地理解地球化学自组织 变质作用过程中所涉及的过程。