“…This narrowed LVZ is bounded on its southwest side by the Zayante-Vergeles tectonic line and by the SAF to the northeast. Other evidence for this fault bounded LVZ comes from gravity modeling (Clark and Rietman, 1973), deep wells northeast and southwest of the Zayante-Vergeles line (see Clark and Rietman, 1973, for a discussion) and by Mooney and Colburn (1985) in the interpretation of a refraction seismic line across the SCM from Watsonville to Gilroy (i.e., approximately the vertical cross-section at y = -20, in our model). The interpretation is that the Salinian basement has downdropped between the two faults by approximately 2 to 3 km (Clark and Rietman, 1973) or by about 1.5 km (Mooney and Colburn, 1985).…”