Teleseismic Studies of the Snake River Plain (An Experiment to Determine Variations in Upper Mantle Properties beneath the Eastern Snake River Plain)

蛇河平原远震研究（确定东蛇河平原下上地幔性质变化的实验）

• 批准号: 9628474
• 负责人: Eugene Humphreys
• 金额: $ 3.28万
• 依托单位: University of Oregon Eugene
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-08-15 至 1997-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9628474&HistoricalAwards=false
• 关键词: Teleseismic; Studies; Snake; River; Plain

119628474 Humphreys This research involves the completion of analysis of results from the Snake River Plain, Idaho, project. This project involved the emplacement and recording of seismic data from 28 PASSCAL portable seismic systems over a 10 month period in 1993-1994 to delineate the upper mantle and crust of the Snake River Plain, a volcanic feature that is the result of the passage of the Yellowstone Hot Spot across the northwestern U.S. The need for additional funds is in part a result of the success of the experiment and the acquisition of much more usable data than was anticipated because of a high success rate for data recording and a high number of usable seismic events during the recording interval. The results will bear on questions of what happens to upper mantle structure and earthquake occurrence when a hot spot traverses through a region of continental crust. This research is a component of the National Earthquake Hazard Reduction Program. ***

小行星119628474 本研究涉及完成对爱达荷州蛇河平原项目结果的分析。 该项目涉及在1993-1994年10个月期间安置和记录28个PASSCAL便携式地震系统的地震数据，以描绘斯内克河平原的上地幔和地壳，这是一个火山特征，是黄石热点穿越美国西北部的结果。需要额外资金的部分原因是成功的由于数据记录成功率高，记录间隔期间可用地震事件数量多，因此获得的可用数据比预期多得多。 这些结果将关系到当一个热点穿过一个大陆地壳区域时，上地幔结构和地震发生会发生什么。 这项研究是国家地震减灾计划的一个组成部分。 ***