Friction and Faulting Instabilities in Gouge Zones

断层带中的摩擦和断层不稳定

• 批准号: 8803688
• 负责人: Charles Sammis
• 金额: $ 9.16万
• 依托单位: University of Southern California
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-03-15 至 1991-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8803688&HistoricalAwards=false
• 关键词: Friction; Faulting; Instabilities; Gouge; Zones

This grant will continue studies of the geometry of fault gouge to explore the role of the particle distribution in the micromechanics of fault-zone instabilities. Previous friction data will be analyzed in an attempt to correlate the evolution of frictional parameters such as characteristic displacement and velocity weakening with comminution and the evolution of shear structures both within the gouge and at the wall-rock interface. These data will be supplemented by a second series of friction experiments, and detailed mapping of natural fault zones to search for analogous structures.

这笔赠款将继续研究断层泥的几何形状，以探索颗粒分布在断层带不稳定微观力学中的作用。 将分析以前的摩擦数据，试图将摩擦参数的演变（例如特征位移和速度减弱与粉碎）以及泥浆内和围岩界面处的剪切结构的演变联系起来。 这些数据将通过第二系列摩擦实验以及自然断层带的详细测绘来补充，以寻找类似的结构。