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.

该项目涉及开发定量模型，以描述岩石系统中变质分化过程中所涉及的过程。 该模型将利用非平衡的热力学理论以及变质流体中化学动力学，运输定律和化学物种形成的现有数据，并将允许定量预测最初均质，细粒度材料的变质质地的时空演化。 该项目的具体目的是基于反应传输方程与粘性流量定律相结合的反应传输方程开发二维模拟器程序，并将压力溶液和界面能量效应作为分化的驱动力。 这项研究的结果将更好地了解变质过程中涉及的地球化学自组织。