fig. 5

What makes a volcano go bang? The Grenadines, Lesser Antilles

Originally posted the Travelling Geologist blog – The world’s most explosive and dangerous volcanoes are located at destructive plate boundaries. Here, dehydration of the subducting tectonic plate initiates partial melting of the overlying mantle wedge and produces magma (and hence, volcanoes). Lavas erupted from volcanoes at these locations chart a huge variety of evolved compositions, […]