Based on the analysis of detailed geological maps, air photos, radar images and tectonic mesostructures the geometry and mechanism of formation of the Gnieździska-Brzeziny fault have been determined. The fault represents a typical example of a dextral strike-slip fault occurring in the SW margin of the Holy Cross Mountains. The trace of the fault is curvilinear-sinusoidal, which produced restraining and releasing bends as well as restraining stepovers.
