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Example B - Subduction Zone

In example B (shown below),

there is just a subduction zone. The plate to the right is overriding the plate to the left; I have indicated this with the heavy arrows on the right side of the subduction zone, pointing toward the subduction zone. The other plate is also moving toward the subduction zone, but it is moving toward the right, and hence the skinny arrows.

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Greg Anderson
Thu Jan 30 16:29:24 PST 1997