Integrated Study of Seismic and Well Data in the Ventura Basin and San Fernando Valley for Active Subsurface Faults

这项研究将获取深层地壳地震数据，这些数据最初是在20世纪40年代和50年代使用炸药从文图拉盆地、圣费尔南多谷和洛杉矶盆地获得的。由于高昂的成本和当地政府的规定，这些地区的现代深层地壳地震数据几乎不可能收集到。现有的地震数据集，一旦获得，将被存储在南加州地震中心。这些数据将使用井数据和地震活动来分析和解释，以帮助解决Ventura盆地和San Fernando Valley活动断层的地震行为、地下几何形状和地震潜力。这些数据将被整合成地下盆地几何形状和断层结构的三维图像，然后与现有的平衡、可逆变形截面的二维模型进行比较。研究结果将有助于了解文图拉盆地和圣费尔南多谷地区主要褶皱和断裂系统走向的几何形状、构造发育和地震危险性。

9416194 Nicholson This study will acquire deep crustal seismic data, originally obtained using dynamite in the 1940's and 1950's, from the Ventura Basin, San Fernando Valley, and Los Angeles Basin. Modern deep crustal seismic data across these areas would be almost impossible to collect today due to prohibitive costs and local governmental regulations. The existing seismic data set, once acquired, will be stored at the Southern California Earthquake Center. The data will be analyzed and interpreted using well data and seismicity to help resolve the seismic behavior, subsurface geometry, and seismic potentia of active faults in the Ventura Basin and San Fernando Valley. The data will be integrated into a three-dimensional image of subsurface basin geometry and fault structure, and then compared with existing two-dimensional models from balanced, retrodeformable cross-sections. The results will help provide a basis for understanding the geometry, tectonic development and seismic hazard potential along strike of major fold and faults systems in the Ventura Basin and San Fernando Valley areas.