Ocean Bottom Seismic Experiment Crossing the Eastern Aleutian Arc and Trench

穿越东阿留申岛弧和海沟的海底地震实验

• 批准号: 8911913
• 负责人: Dale Sawyer
• 金额: --
• 依托单位: William Marsh Rice University
• 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: 1989-07-01 至 1991-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8911913&HistoricalAwards=false
• 关键词: Ocean; Bottom; Seismic; Experiment; Crossing

This project will investigate the crustal structure across the Eastern Aleutian Arc by using ocean bottom seismographs to record wide angle reflections and refractions from airgun shots fired during the acquisition of a multichannel seismic reflection line. The data will be interpreted using two- dimensional ray-tracing techniques. The primary objective is to determine seismic velocities to depths of 30 km which will aidin the interpretation of the near-vertical multichannel reflection data.

该项目将利用海底地震仪记录在采集多通道地震反射线期间发射的气枪射击的广角反射和折射，研究东阿留申岛弧的地壳结构。将使用二维光线追踪技术来解释数据。主要目标是确定 30 公里深度的地震速度，这将有助于解释近垂直的多道反射数据。