Is igneous activity that occurs plate margins.

Intraplate volcanism is igneous activity that occurs away from plate margins.

Intraplate volcanism is the volcanic activity that takes place within a tectonic plate far away from plate margins/ boundaries. Volcanic activity usually takes place at plate margins but some exceptionally active ones (such as intraplate volcanism) also occur within a plate. Most intraplate volcanism are thought to occur due to large hot mantle plumes that rise gradually through the mantle by convection.

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