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a geologic process in which one crustal plate descends below the edge of the other, feeding crustal material into the mantle

Is the main cause of volcanoes.
As one plate slides underneath the other, the plate begins to melt and hot magma comes to the surface to create volcanoes.

Sub*duc"tion (?), n. [L. subductio.]


The act of subducting or taking away.

Bp. Hall.


Arithmetical subtraction.

Sir M. Hale.


© Webster 1913.

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