Good word. Similar to a massif, but formed of individual plutons that accrete into a single mass.

Kageran is on a batholith from the Arsae colliding west into Treveriane. The subducted plate, the Arsae, released volatiles under the Treveriane that caused igneous intrusions not far from the boundary. Some time later, the subduction largely stopped and the two plates stuck together. Erosion has begun baring the deep granite, but there is still a thick layer of oceanic sediment from when the Arsae was underwater.

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