In geology, obduction describes the process where a lithospheric plate is displaced laterally onto a continental plate: this occurs at a destructive plate boundary.

In this way, the lithospheric plate is drawn over the existing continental plate and covers it.

This process is the opposite of subduction.

Ob*duc"tion (?), n. [L.obductio.]

The act of drawing or laying over, as a covering.

[Obs.]

 

© Webster 1913.

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