Which fault acts as the boundary between the Coast Ranges and Transverse Ranges Provinces?

The Santa Ynez Fault is recognized as the boundary between the Coast Ranges and Transverse Ranges Provinces. This fault system demonstrates significant geological and tectonic significance, as it separates these two distinct geological provinces. The Coast Ranges Province is characterized by its north-south trending mountain ranges, while the Transverse Ranges Province is known for its east-west trending orientation, influenced by complex geologic processes and tectonic activity.

The Santa Ynez Fault plays a key role in the regional geology, facilitating the movement and deformation associated with the overarching tectonic activity of the area. By acting as this boundary, it delineates not only the physical landscape but also the distinct geological features, rock types, and structural characteristics found within each province.

Understanding the Santa Ynez Fault and its positioning helps geologists interpret the tectonic history and ongoing processes in California, which can have implications for local geology, earthquake risk assessments, and natural resource management.