Tossup

Suture zones are created when these objects come together at the end of the Wilson cycle. The theory of these objects explained the origin of ophiolites, which are lifted over accretionary wedges. (-5[1])Two of these objects meeting can create a Wadati–Benioff (10[1])zone (10[1])or cause orogeny. (10[2])Slab (10[1])pull (10[1])and ridge push forces act on these objects. (10[1])Alfred Wegener (10[1])established the basis for a theory of these objects, (10[1])which are driven by convection currents in the mantle. (10[1])The subduction that occurs at convergent boundaries between these objects often causes earthquakes. For 10 points, there are “Pacific” and “North American” examples of what objects whose motion leads to continental drift? ■END■

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