Numerical Modeling of Strain Histories and Displacement Paths in Compressional Orogens

挤压造山带应变历史和位移路径的数值模拟

• 批准号: 9805021
• 负责人: Dennis Harry
• 金额: $ 13.93万
• 依托单位: University of Alabama Tuscaloosa
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-08-15 至 2002-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9805021&HistoricalAwards=false
• 关键词: Numerical; Modeling; Strain; Histories; Displacement

9805021 Harry This project is an ambitious attempt to model several aspects of the compressional mountain building process, especially the causes of late stage syn- and/or post-orogenic extension, the partitioning of transpressional displacement into strike-slip and dip slip components, and on developing a basis for interpreting rock displacement histories from geologic and geophysical observations. The work involves a series of Finite Element models in first 2-D and then expanded to 3-D followed by testing and application to a number of orogens, including the Ouachita and Brooks Range. Results are expected to help understand structural response to prolonged oblique convergence in orogenesis.

小行星9805021 该项目是一个雄心勃勃的尝试，以模拟挤压造山过程的几个方面，特别是后期同造山和/或造山后伸展的原因，转换挤压位移到走滑和倾滑组件的分区，并制定一个解释岩石位移历史的地质和地球物理观测的基础。 这项工作涉及一系列有限元模型，首先是二维模型，然后扩展到三维模型，然后对一些造山带进行测试和应用，包括沃希托和布鲁克斯山脉。 研究结果有助于理解造山作用中构造对长时间斜向会聚的响应。