Dextral Ductile Shear Zone

Aplite veins are deformed by a ductile shear zone in granitoid from Switzerland. The two aplite veins had somewhat different original orientations and therefore show different deflections into the shear zone. Nevertheless, the sense of deflection is the same for both veins and may be used to determine the top to the right sense of shear in the shear zone. Photo credit: Rob Knipe. Image from website: