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

主要研究人员将通过分析SAFOD先导井井内可移动、多级、多传感器、三分量地震阵列的数据，对圣安德烈亚斯断裂带进行高分辨率地震成像。具体来说，他们将在由其他奖项资助的有源实验期间记录井眼地震仪串。对于这些传感器，他们将添加两个相互正交的表面扩展，以执行从表面到约2公里深度的SAF区域的高分辨率，3D，直接反射成像。对于震源，他们将使用井下振动器和地面可控震源，这些可控震源来自井内的反射/折射线。高分辨率地震实验将是一种廉价的替代全地面3D调查（非常昂贵！），具有断层带直接和详细成像的优势

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.***