Converging plates on Earth

Converging plates on Earth

Fig. 4.14 . Magma, volcanoes and earthquakes are generated at a subduction zone (top) where a dense oceanic plate is pushed under a lighter continental plate. When continents on two moving plates meet head on, new mountains are generated (center). In some situations, the advancing plate may become disrupted and the plate motion may stop. The two continents then become welded together forming a larger one, and a new subduction zone can be formed elsewhere (bottom).

Copyright 2010, Professor Kenneth R. Lang, Tufts University