Diffracted Wave Studies of the Structure of the Core-Mantle Boundary

核幔边界结构的衍射波研究

• 批准号: 9205368
• 负责人: Michael Wysession
• 金额: $ 11万
• 依托单位: Washington University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-07-01 至 1994-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9205368&HistoricalAwards=false
• 关键词: Diffracted; Wave; Studies; Structure; Core

This research is to study the seismic velocities and, by inference, the dynamical processes occurring within D", the base of the mantle just above the core-mantle boundary. Diffracted P and S waves and core phases will be used as recorded on digital broad-band seismometers. Many processes that occur within the earth - convection, hot spot generation, geomagnetic field production, cooling of the core -would be much better understood if we had improved resolution of D", the thermal and/or chemical boundary layer at the base of the mantle. It is the aim of this project to achieve this resolution, and in doing so, knowledge of deep earth dynamics.

本项研究是为了研究地震速度， 推理，发生在D”，基础 在核幔边界之上 衍射P 和S波和核心阶段将被用于记录在数字 宽带地震仪 许多过程发生在 地球对流，热点生成，地磁场 生产，核心冷却-将更好地理解 如果我们提高了D”的分辨率，热和/或化学 地幔底部的边界层。 这是我们的目的 项目，以实现这一决议，并在这样做，知识， 深层地球动力学