Slip Rate Studies of the Garlock and Owl Lake Faults

加洛克和猫头鹰湖断层滑动率研究

• 批准号: 9205669
• 负责人: Sally McGill
• 金额: $ 6.4万
• 依托单位: University Enterprises Corporation at CSUSB
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-04-01 至 1996-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9205669&HistoricalAwards=false
• 关键词: Slip; Rate; Studies; Garlock; Owl

This research is to determine the Quaternary slip rate at two sites along the Garlock fault and at one site along the Owl Lake fault, in southern California. At all three sites, channel walls on alluvial fans are left-laterally offset several tens of meters. Photogrammetry and trench excavation techniques will be used. Dating of events will be done by a number of techniques depending on material uncovered in the excavations. The results of these projects will provide information useful for evaluating the seismic hazard posed by the Garlock fault, as well as for constraining tectonic models of the region surrounding the Garlock fault. This research is a component of the National Earthquake Hazard Reduction Program.

这项研究旨在确定加利福尼亚州南部加洛克断层沿线的两个地点和猫头鹰湖断层沿线的一个地点的第四纪滑动速率。在这三个地点，冲积扇上的渠道墙向左偏移了几十米。将使用摄影测量和沟渠挖掘技术。根据发掘中发现的材料，将通过多种技术对事件进行年代测定。这些项目的结果将为评估加洛克断层造成的地震危险以及约束加洛克断层周围地区的构造模型提供有用的信息。这项研究是国家减少地震灾害计划的一部分。