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

9416194尼科尔森这项研究将从文图拉盆地、圣费尔南多山谷和洛杉矶盆地获得地壳深部地震数据，这些数据最初是在1940年的S和1950年的S使用炸药获得的。由于高昂的成本和当地政府的规定，今天几乎不可能收集这些地区的现代地壳深部地震数据。现有的地震数据集一旦获得，将存储在南加州地震中心。这些数据将利用钻井数据和地震活动性进行分析和解释，以帮助解决文图拉盆地和圣费尔南多山谷活动断裂的地震行为、地下几何形状和地震潜力。这些数据将被整合到地下盆地几何形状和断层结构的三维图像中，然后与现有的来自平衡、可逆变形横截面的二维模型进行比较。这一结果将有助于了解文图拉盆地和圣费尔南多山谷地区主要褶皱和断裂系统的几何学、构造发育和沿走向的地震危险性潜力。

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.