Investigation of Upper Plate Response to Subducting Plate Morphology and Seamounts as Subduction Zone Asperities: Cooperative German, Costa Rican, and United States Project

研究上板块对俯冲板块形态和海山作为俯冲带凹凸不平的响应：德国、哥斯达黎加和美国合作项目

• 批准号: 9402091
• 负责人: Kirk McIntosh
• 金额: $ 92.21万
• 依托单位: University of Texas at Austin
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-12-01 至 1999-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9402091&HistoricalAwards=false
• 关键词: Investigation; Upper; Plate; Response; Subducting

9402091 McIntosh This study will investigate the effect of the surface morphology of a subducting oceanic plate upon the structure and seismicity of the over-riding continental plate. It will use land- and sea-based seismics to examine transects over three regions of the Cocos plate chosen for their different morphology: one smooth, one with numerous seamounts, and one bearing the Cocos Ridge. A primary goal is to test a recent theory that seamounts serve as sites for concentration of earthquakes ("asperities"). A grid of OBS's in the seamount-dominated region will be used to examine this topic. ***

9402091 McIntosh这项研究将研究俯冲海洋板的表面形态对过度骑行大陆板的结构和地震性的影响。 它将使用陆基和海洋的地震技术检查以不同的形态选择的可可板的三个区域上的样品：一种光滑，一种，有许多海拔，一个带有可可岭的带有可可层。 一个主要目标是测试一个最近的理论，即封口是地震集中的地点（“ s弱”）。 在海拔主导的区域中的OBS网格将用于检查该主题。 ***