Hey---great research! I think that lots of the old time oil folk used the name Horse Fault...quite a few of them in the SB Channel, and some of them involved with oil reservoirs. Made for very tough seismic mapping in 2d, however! Generally used for a body of rock that was fault-bounded and out of place.

The Santa Barbara Channel (Ventura Channel) has shown so many episodes of different types of stress that both compressional and extensional fault factors are there. Squeeze and stretch and rotate....and almost all of the rock is Cenozoic--in fact, most of it Miocene or later, so generally "soft" rock. But I babble.

Egad...it is snowing...AGAIN.