Teacher resources and professional development across the curriculum
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|More About DYNAMIC
Eruptions at Separating
As basaltic magmas are normally low in volatiles and are less viscous than magmas of other compositions, volcanic eruptions that occur at these locations tend to be less dangerous than those occurring at convergent margins.
Eruptions tend to consist of large amounts of fragmented material released into the atmosphere. Most of the fragments fall back to Earth in the region of the eruption. Layers of erupted material build up over time, forming the magnificent, steep-sided volcanoes called stratovolcanoes (or composite volcanoes). In many regions of the world, you can be sure of the presence of a convergent margin by the line of stratovolcanoes that marks it.
"Volcanoes" is inspired by programs from Earth Revealed.