Re: 5.5 CA desert
Posted by heartland chris on December 06, 2008 at 08:05:18:

Thes right-lateral Mojave faults all tend to die out before reaching the Garlock fault, which cuts across in the north. The overall motion that is seen in GPS continues north along Owens Valley and I think death valley into Walker Lane belt. How this motion continues across Garlock while the surface faults do not is unclear to me. It may also be unclear to California geologists. I don't know what the latest thinking on this is. The only way I know of to do this sort of transfer is by vertical axis block rotation (meaning, looking down a crustal block spins slowly, probably clockwise). But, I don't see the sorts of fault-bounded block shapes on the 1994 Jennings fault map that would allow this. I know that certain parts of the Mojave have rotations recorded in old (Miocene? 15 or 20 million years??) rocks. But, I have not read these papers for almost 20 years.
Chris


Follow Ups:
     ● Re: 5.5 CA desert - Todd  13:39:44 - 12/6/2008  (74565)  (1)
        ● rotations - heartland chris  17:36:01 - 12/6/2008  (74567)  (1)
           ● Re: rotations - Todd  01:58:43 - 12/8/2008  (74569)  (1)
              ● Santa Monica fault - heartland chris  06:21:59 - 12/9/2008  (74570)  (1)
                 ● Re: Santa Monica fault - Skywise  20:40:44 - 12/9/2008  (74572)  (0)