Rheological Controls on Fold Shape and Strain Distribution

褶皱形状和应变分布的流变控制

• 批准号: 9219702
• 负责人: Peter Hudleston
• 金额: $ 11万
• 依托单位: University of Minnesota-Twin Cities
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-01-01 至 1996-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9219702&HistoricalAwards=false
• 关键词: Rheological; Controls; Fold; Shape; Strain

The initiation and development of folds in layered rocks is a fundamental phenomena, however the process involves a complex set of possible variables. This project continues research on folding in layered materials by modeling in linear and non-linear viscous materials. Finite element models will study how shape and strain distribution in single-layer and multilayer folds vary as a function of viscosity contrast, the exponent in a constitutive relation of power-law type, and initial shape, wavelength and layer spacing. Results should increase understanding of the fundamental controls on the rheology of rocks deformed under natural conditions.

层状构造中褶皱的形成和发展 岩石是一种基本现象，然而， 涉及一系列复杂的可能变量。 这个项目 继续研究层状材料的折叠， 线性和非线性粘性材料的建模。 有限 单元模型将研究形状和应变分布 在单层和多层褶皱中， 粘度对比，本构关系中的指数 的幂律型，初始形状，波长和层 间距。 结果应增加对 变形岩石流变学的基本控制 自然条件。