Collaborative Research: Seismic Studies of the Continental Lithosphere and Subducting Plate Beneath Central Peru

合作研究：秘鲁中部下方大陆岩石圈和俯冲板块的地震研究

• 批准号: 9018848
• 负责人: David James
• 金额: $ 6.45万
• 依托单位: Carnegie Institution of Washington
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-02-15 至 1993-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9018848&HistoricalAwards=false
• 关键词: Collaborative; Research; Seismic; Studies; Continental

This research is to analyze body wave phases recorded over a period of several months by a digital three-component local array operated in the Subandean Province and East Peru Basin above the zone of flat subduction and resubduction in the central Andes. The analysis will include a systematic interpretation and inversion of body wave seismograms making use of a recently developed technique for the deterministic calculation of synthetic seismograms. Dipping plate structures outside the region of flat subduction will be studied by means of 3-D ray tracing routines which incorporate conversions and reflections at first-order discontinuities. The Andean system offers unique opportunities for the study of many fundamental problems of continental dynamics including earthquake hazard, and the fine structure and properties of the subducting slab, the overriding lithosphere and the interface between them. This research is a component of the National Earthquake Hazard Reduction Program.

本研究是分析在一个 数字三分量局部阵列的几个月期间 在Subandean省和东秘鲁盆地， 位于安第斯山脉中部的一个平坦的俯冲和再俯冲带。 分析将包括系统的解释， 体波地震图反演 确定性计算的发展技术 合成地震记录 外板结构 利用三维射线研究了一个平坦俯冲区 包含转换和反射的跟踪程序. 一阶不连续 安第斯体系提供了独特的 研究许多基本问题的机会， 大陆动力学，包括地震危险，以及 俯冲板块的结构和性质， 岩石圈和它们之间的界面 这项研究是一个 国家地震减灾计划的一部分。