Processes of Active Deformation and Slip Transfer Along the Sierra Nevada-Great Basin Boundary Zone in the Lake Tahoe Basin

太浩湖盆地内华达山脉-大盆地边界带的主动变形和滑移传递过程

• 批准号: 9903200
• 负责人: Richard Schweickert
• 金额: $ 19.5万
• 依托单位: Board of Regents, NSHE, obo University of Nevada, Reno
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-08-01 至 2002-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9903200&HistoricalAwards=false
• 关键词: Processes; Active; Deformation; Slip; Transfer

9903200SchweickertThe boundary between the pacific plate and the North American plate is diffuse along the California sector of the West Coast of the US. Recent measurements indicate that the Sierra Nevada block is moving northward relative to stable North America at about 10mm/yr, which is about 25% of the total Pacific/North America relative movement. This project focuses in detail on the component of this active strain accumulation in the Lake Tahoe basin and the associated seismic hazard it implies. A variety of mapping, structural and seismic studies are aimed at resolving two current hypotheses for the cause of active deformation. Data collected will also be applicable to assessing the seismic hazard potential of this area.

9903200Schweicker太平洋板块和北美板块之间的边界沿着美国西海岸的加利福尼亚州部分扩散。最近的测量表明，内华达山脉地块正在以大约10 mm/年的速度相对于稳定的北美向北移动，这大约是太平洋/北美整体相对移动的25%。该项目的重点是太浩湖盆地这种活跃应变积累的组成部分及其所暗示的相关地震危险。各种测绘、构造和地震研究的目的是解决目前关于活动变形原因的两个假说。收集的数据也将适用于评估该地区的地震危险潜力。