California has overridden part of a seafloor spreading zone.

Question

Quizplus · Accepted Answer

California is located along the boundary of the Pacific and North American tectonic plates, which are moving horizontally past each other. This movement has caused the San Andreas Fault zone, but it hasn't caused the overriding of a seafloor spreading zone. Seafloor spreading zones occur where new oceanic crust is formed at mid-ocean ridges and then moves laterally away from the ridge axis on either side.

California Has Overridden Part of a Seafloor Spreading Zone