GEOLOGY

Detailed explanation-1: -The transform plate boundary between the Pacific and North American Plates in western California formed fairly recently. About 200 million years ago, a large tectonic plate (called the Farallon Plate) started to subduct beneath the western edge of North America.

Detailed explanation-2: -Tectonic Plate Boundaries The San Andreas fault is a transform plate boundary, accomodating horizontal relative motions.

Detailed explanation-3: -The San Andreas Fault is an example of transform boundaries where plate material is neither created nor destroyed. In this case, two plates are moving past one another in opposite directions. This is referred to as transform motion and thus the San Andreas is referred to as a transform fault.

Detailed explanation-4: -The zone between two plates sliding horizontally past one another is called a transform-fault boundary, or simply a transform boundary.