Theoretical Models of Earth History

地球历史的理论模型

• 批准号: 9506722
• 负责人: David Stevenson
• 金额: $ 15万
• 依托单位: California Institute of Technology
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-08-15 至 2000-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9506722&HistoricalAwards=false
• 关键词: Theoretical; Models; Earth; History

9506722 Stevenson The PIs will develop models for Earth's thermal evolution that differ from previous efforts in the extent to which they develop a fully self-consistent picture of the interplay of various convective processes (plates, plumes and "small scale" convection), the extent to which they incorporate important physical processes that are frequently omitted, and the number and diversity of observables to which the models seek to make a connection. The approach is eclectic, involving specific pieces of physics that require theoretical development, analytical scaling arguments and numerical convection experiments. The PIs will specifically include effects of small scale convection, the role of kinetics of phase transitions, and the role of water in plate tectonics, crustal production and mantle cooling. ***

9506722史蒂文森 PI将开发地球热演化的模型，这些模型与以前的努力不同，因为它们开发了各种对流过程相互作用的完全自洽的图像（板块、羽流和“小尺度”对流），它们在多大程度上包含了经常被忽略的重要物理过程，以及模型试图建立联系的可观测量的数量和多样性。 该方法是折衷的，涉及特定的物理学，需要理论发展，分析缩放参数和数值对流实验。 PI将具体包括小尺度对流的影响，相变动力学的作用，以及水在板块构造，地壳生产和地幔冷却中的作用。 ***