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Evolution of a Continental Margin Transform Plate Boundary. The San Clemente Fault System Offshore Southern California

  • Book

  • November 2022
  • Region: United States
  • Elsevier Science and Technology
  • ID: 5308523
Evolution of a Continental Margin Transform Plate Boundary: The San Clemente Fault System Offshore Southern California provides a major advance in understanding the geology, tectonic evolution and earthquake potential of significant faults offshore southern California and northern Baja California where major cities and critical facilities are at risk from large offshore earthquakes. The book approaches the subject with historical background, overview of the main features, and more focused chapters on specific aspects/features of the fault system including tectonic style - strike-slip and oblique-slip, tectonic evolution, seismic hazard/earthquake and tsunami potential.

Strike-slip fault systems are important for resource exploration and production, earthquake hazard investigations, and understanding the geologic evolution of transform and other tectonic plate boundaries. Many hydrocarbon deposits are located in structures along active and formerly active strike-slip fault systems (LA Basin, for example). There are known hydrocarbon seeps along the San Clemente fault system, and there are likely numerous significant hydrocarbon deposits that may be explored and produced in the future. There are also seafloor mineral deposits that are associated with the fault system (e.g., silver mines on Santa Catalina Island). The San Clemente Fault System Offshore Southern California will help researchers and local governments to understand the geometry and character of a major active strike-slip fault systems across the globe.

Table of Contents

1. Introduction and Historical Background
2. Geomorphic Expression and Seafloor Paleoseismology
3. Subseafloor Geology of the San Clemente Fault System
4. Crustal and Lithospheric Structure from Gravity and Magnetic Studies
5. Seismicity and Earthquake Potential
6. Oblique-Rifting of the Inner Borderland Tectonic Evolution of the San Diego Trough (Half-Graben) and the San Clemente Basin (Rhombochasm)
7. Transpressional Ridges and Basin Inversion

Authors

Mark R. Legg President, Legg Geophysical, CA, USA. Dr. Legg received a B.S. in Space Sciences & Mechanical Engineering from the Florida Institute of Technology, M.S. in Oceanography from the Scripps Institution of Oceanography, and Ph.D in Geological Sciences from the University of California, Santa Barbara. Post-graduate research focused upon the geology and seismotectonics of the California Continental Borderland, with detailed studies of the inner borderland west of San Diego and northern Baja California. As President of Legg Geophysical, Dr. Legg conducts many diverse projects relating to both natural and man-made hazards funded by both government and commercial agencies and specializes in high-resolution seismic reflection profiling.