Imaging the San Andreas fault Zone and SAFOD site characterization using 3-D-spread high-resolution seismics

使用 3-D 扩展高分辨率地震对圣安德烈亚斯断层带进行成像并进行 SAFOD 场地表征

• 批准号: 0207921
• 负责人: Igor Morozov
• 金额: $ 13.9万
• 依托单位: University of Wyoming
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-08-15 至 2005-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0207921&HistoricalAwards=false
• 关键词: Imaging; San; Andreas; fault; Zone

0207921MorozovThe Principal Investigators will conduct high-resolution seismic imaging of the San Andreas Fault zone by analyzing data from a removable, multilevel and multi-sensor, 3-component seismic array in the borehole of the SAFOD Pilot Hole. Specifically, they will record the borehole seismometer string during the active source experiments that are funded through other awards. To these sensors, they will add two mutually orthogonal surface spreads to perform a high-resolution, 3D, direct reflection imaging of the SAF zone from the surface to the depth of about 2 km. For sources, they will use a downhole vibrator and surface Vibroseis from a reflection/refraction line across the borehole site. The high-resolution seismic experiment will be an inexpensive alternative to a full surface 3D survey (very expensive!), with the advantages of direct and detailed imaging of the fault zone.***

0207921Morozov 首席研究员将通过分析 SAFOD 导向孔钻孔中可移动、多级、多传感器、3 分量地震阵列的数据，对圣安德烈亚斯断层带进行高分辨率地震成像。 具体来说，他们将在通过其他奖项资助的主动震源实验期间记录钻孔地震仪串。 他们将为这些传感器添加两个相互正交的表面扩展，以对 SAF 区域从表面到约 2 公里深度进行高分辨率、3D 直接反射成像。 对于来源，他们将使用井下振动器和来自穿过钻孔现场的反射/折射线的表面可控震源。 高分辨率地震实验将是全表面 3D 勘测（非常昂贵！）的廉价替代方案，具有直接和详细的断层带成像的优点。***