GEOLOGY

Detailed explanation-1: -The transform plate boundary is a broad zone forming as the Pacific Plate slides northwestward past the North American Plate. It includes many lesser faults in addition to the San Andreas Fault.

Detailed explanation-2: -The Pacific Plate is the oceanic plate beneath the Pacific Ocean. The Pacific Plate forms a transform boundary with the North American Plate that creates the San Andreas Fault. At this fault, the Pacific Plate slides past the North American Plate.

Detailed explanation-3: -Scientists believe that the Rockies were made by a subducting plate at the convergent boundary. The plate that was subducted is believed to have floated back up to the crust and thrust upward, creating the vast mountain range we see today.

Detailed explanation-4: -The prevailing hypothesis for the Rockies’ birth, called flat-slab subduction, says that the Pacific oceanic plate dove underneath the North American plate at an unusually shallow angle.