Active and Passive Seismic Imaging of the San-Andreas-Fault System

圣安德烈亚斯断层系统的主动和被动地震成像

• 批准号: 22606008
• 负责人: Professor Dr. Stefan Buske
• 金额: --
• 依托单位: Institut für Geophysik und Geoinformatik
• 依托单位国家: 德国
• 项目类别: Infrastructure Priority Programmes
• 财政年份: 2006
• 资助国家: 德国
• 起止时间: 2005-12-31 至 2008-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/22606008?language=en
• 关键词: Active; Passive; Seismic; Imaging; San

High-quality active seismic data are currently acquired in the vicinity of the San-Andreas-Fault-System within the EarthScope project SAFOD. Our proposal aims at processing and interpretation of these data sets using newly developed techniques in order to derive a high-resolution image of the subsurface. On one hand we want to employ Fresnel-Volume-Migration to two of these data sets for an improved and more detailed image of the internal structure of the fault system compared with already existing images. On the other hand we want to locate local earthquakes from the vicinity of the fault system using a new efficient procedure followed by a study of their relationship to the structural features of the fault system. In summary these investigations provide an important contributation to the understanding of the physical and chemical processes that control the motion and earthquake triggering at such an active plate boundary.

目前，EarthScope 项目 SAFOD 内的圣安德烈亚斯断层系统附近采集了高质量的主动地震数据。我们的建议旨在使用新开发的技术处理和解释这些数据集，以获得地下的高分辨率图像。一方面，我们希望对其中两个数据集采用菲涅耳体积偏移，以便与现有图像相比，获得改进且更详细的断层系统内部结构图像。另一方面，我们希望使用一种新的有效程序从断层系统附近定位局部地震，然后研究它们与断层系统结构特征的关系。总之，这些研究为理解控制这种活动板块边界运动和地震触发的物理和化学过程做出了重要贡献。