Two- and three- dimensional analysis of structural trends in the Santa Barbara Channel, California, United States

A two- and three-dimensional analysis of structures in the Santa Barbara Channel basin, California, has been completed and is presented in this dissertation. For the 3D analysis we combine structure contour and axial surface maps. The 2D analysis was accomplished by constructing balanced structural cross sections and kinematic models, using fault-related fold theory. To decipher the kinematics of the structure in both two and three dimensions, new restoration techniques were used to restore both structural profiles and contour maps.;Chapter 2 presents the structures of the eastern and central Santa Barbara Channel through structure contour and axial surface maps, based on mapping ;In chapter 3, we use a new restoration technique to restore fold growth in cross section. The technique uses restoration vectors parallel to the axial surfaces to perform step-by-step restoration, satisfying balance constrains. Rubber sheeting is used to restore the data, allowing one to view the data in the restored stage. Growth folds from southern California, the Pyrenees and Sumatra were restored to demonstrate the viability of the technique in a number of structural environments.;Chapter 4 shows a simple 3D model of the interference geometry of two monoclinal folds. We apply the model to a number of examples from southern California, Colorado and the Gulf of Mexico.;Chapter 1 presents a balanced structural transect of the northeastern Santa Barbara Channel. The transect contains the Dos Quadras trend to the south and the Carpinteria trend to the north. The structural solution involves progressive complex wedging of fault blocks. The kinematic origin of these structures is illustrated through progressive retrodeformation.