Anorogenic magmatism

In geology, anorogenic magmatism is the formation, intrusion or eruption of magmas not directly connected with orogeny (mountain building).

[1] Anorogenic magmatism occurs, for example, at mid-ocean ridges, hotspots and continental rifts.

This contrasts with orogenic magmatism that occurs at convergent plate boundaries where continental collision, subduction and orogeny are common.

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