Plate Tectonics: Intraplate Volcanism

Explaining how magma plumes rise through the mantle and create volcanoes on the Earth surface.

[@adamcallandrillo8702]

When talking about the oceanic crust, is it always composed of basalt like the example implies or is their variations around the world?

[@earthscienceclassroom]

It’s mostly basalt, however at certain depths there could be layer sections of gabbro, and some sedimentary bedding towards the ocean floor

[@anuragkamal7161]

Easy to understand 😌