Its total offset is about 200 km since the Paleozoic.
The Al fraction difference then gives a valance band offset in the opposite direction, which reduces the total offset.
Paleomagnetic studies suggest that much, if not all, of this total offset occurred in the Cenozoic (Cobbold et al. 1996).
This fault architecture is related to the relative contributions of each deformation mechanism to the total offset and to their relative timing.
Uplifted remnants of a low relief landscape (Summit Paleosurface, SP) constrain to about 800 m the total offset of the PSDFS since the late Lower Pleistocene.
The seismic profile total offset is 31,175 m and common depth point (CDP) interval is 25 m with total number of CDP 1247.
Two offset channels cross the fault trace at a lower angle and therefore yield less accurate estimates of total offset; however, the magnitude of the offset is consistent with the three orthogonal channels.
The total offset is estimated from three channels that cross the fault at high angle, and is consistent with the offset of channels that cross the fault trace at low angle.
Considering that the onset of motion along the XF is contemporaneous with the onset of rapid exhumation recorded along the Kangding transect at ∼9 Ma and a total offset of ∼62 km documented for the XF, the average slip rate of the XF is ∼7 mm/yr since 9 Ma.
It is difficult to estimate the total offset along the LOFZ because the fossil spreading center west of the fracture zone is entirely subducted beneath the Ryukyu fore-arc and because its location between the northern termination of the CBF rift and the LOFZ is not clear.
