Quantitative Lab Modeling of Critical Wedge Dynamics

临界楔动力学的定量实验室建模

• 批准号: 0229979
• 负责人: Daniel Davis
• 金额: $ 18.62万
• 依托单位: SUNY at Stony Brook
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-05-01 至 2007-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0229979&HistoricalAwards=false
• 关键词: Quantitative; Lab; Modeling; Critical; Wedge

The PI has described a new technique for the automated analysis of strain in analogexperiments. Using this technique, he propose to test a series of published analyticaland numerical models for the behavior of critical wedges, both Coulomb and viscous,focusing upon three broad questions.These questions include:- the conditions for the formation of a double retrowedge,- the rheological and geometric constraints on the occurrence of extension in criticalwedges- the strain and rotational signatures of a suite of proposed mechanisms for the formationof lobate mountain rangesIn this modeling, he will emphasize:- the testing of specific predictions for critical wedge behavior based upon numerical andanalog modeling, and- relating alternative models for the creation of arcuate mountain belts to specificgeological observables (finite strains, slip vectors, geodetic strain rate patterns,structural traces) by which models might be discriminated from each other.

PI为模拟实验中应变的自动分析提供了一种新技术。利用这一技术，他建议测试一系列已发表的关于临界楔形的分析和数值模型，包括库仑和粘性。这些问题包括：-形成双反楔形的条件，-在临界楔形中发生伸展的流变学和几何约束-一套拟议的分叶山脉形成机制的应变和旋转特征。在这种建模中，他将强调：-基于数值和模拟模拟的临界楔形行为的特定预测的测试，以及-关于创建特定地质观测的弧形山带的替代模型(有限应变、滑动矢量、大地应变率、模式)结构痕迹)，可以通过这些痕迹来区分模型。