Plate Tectonics (continued)

I. Spreading centers
II. Transcurrent boundaries and transform faults
III. Subduction zones
IV. The rock cycle

I. Seafloor spreading centers

Most common form of divergent plate boundary. New seafloor created continually as two plates diverge from each other.

II. Transcurrent boundaries and transform faults

Most common transcurrent boundary is an oceanic transform fault, which connects two segments of a spreading center.

San Andreas fault is example of transcurrent plate boundary within a continent.

III. Subduction zones

How do we know that oceanic plates subduct into the mantle?

IV. The Rock Cycle

Plate tectonic processes drives much of the rock cycle.