Magma pancakes beneath Indonesia’s Lake Toba: Subsurface sources of mega-eruptions

30 octubre 2014

The tremendous amounts of lava that are emitted during super-eruptions accumulate over millions of years prior to the event in the Earth’s crust. These reservoirs consist of magma that intrudes into the crust in the form of numerous horizontally oriented sheets resting on top of each other like a pile of pancakes.