COLLABORATIVE RESEARCH: Folding Processes in Thrust Belts: Lost River Range Idaho

合作研究：冲断带的折叠过程：爱达荷州失落河岭

• 批准号: 9017334
• 负责人: David Anastasio
• 金额: $ 7.08万
• 依托单位: Lehigh University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-01-01 至 1993-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9017334&HistoricalAwards=false
• 关键词: COLLABORATIVE; RESEARCH; Folding; Processes; Thrust

Geometric studies in thrust belts have given rise to a number of kinematic models for the development of specific structural geometries, but the models have remained to a large extent untested for large scale examples because of a lack of sufficient incremental strain data and diagnostic microstructures. This project is designed to provide an adequate data set from well- exposed folds and thrusts in the northern Lost River Range in Idaho in order to constrain models for the development of those structures. The work involves construction of detailed 3-D structural geometries and cross-sections and the determination of strain histories using syntectonic fibers from samples collected from appropriate parts of these structures. Results are expected to allow a vigorous test of several hypotheses concerning how such folds and thrusts develop. The outcome will be utility in understanding the kinematics of deformation in other fold and thrust belts.

冲断带的几何学研究已经产生了一些 运动学模型的发展， 几何形状，但模型仍然在很大程度上未经测试 对于大规模的例子，由于缺乏足够的 增量应变数据和诊断微结构。 这 该项目旨在提供一个充分的数据集， 爱达荷州洛斯特河山脉北方暴露的褶皱和冲断层 为了限制这些发展的模型， 结构. 这项工作涉及详细的三维结构， 结构几何形状和横截面， 应变历史使用同构造纤维从样品收集 从这些结构的适当部分。 结果预计 允许对几个假设进行有力的测试， 褶皱和逆冲断层发育。 结果将是实用的， 了解其他褶皱变形的运动学， 冲断带