Final answer:
The composition of rocks primarily found at and near the surface of oceanic hot spot volcanism is mafic.
Step-by-step explanation:
The composition of rocks primarily found at and near the surface of oceanic hot spot volcanism is mafic. Oceanic crust is composed of mafic magma, which erupts on the seafloor to create basalt lava flows or cools deeper down to create the intrusive igneous rock gabbro.